Civil Law and UAE: Forensic Integrity of Blockchain Evidence

1. Introduction

Forensic integrity of blockchain evidence means the ability to demonstrate that blockchain-related evidence presented to a UAE court is:

authentic;

complete;

accurately extracted;

attributable to the relevant person or entity;

preserved without alteration;

technically reliable;

properly interpreted; and

sufficiently connected to the legal transaction or obligation in dispute.

Blockchain creates a special evidentiary problem. A blockchain ledger may be highly resistant to alteration, but immutability does not automatically prove identity, ownership, authorization, contractual consent or legal responsibility.

For example:

Blockchain address → transaction → wallet control → person/entity → authorization → underlying agreement → legal obligation.

Every link in this chain may require separate proof.

The UAE legal framework is increasingly capable of dealing with this problem through the Federal Decree-Law No. 35 of 2022 on Evidence in Civil and Commercial Transactions, the Federal Decree-Law No. 46 of 2021 on Electronic Transactions and Trust Services, and, in the DIFC, specialized Digital Economy Court rules dealing expressly with blockchain, digital assets and distributed-ledger technology.

2. Meaning of Forensic Integrity

Forensic integrity asks whether digital evidence can be trusted from the moment it is created or collected until the moment it is presented to the court.

For blockchain evidence, this involves at least eight questions:

Provenance — Where did the evidence come from?

Integrity — Has the evidence been altered?

Authenticity — Is it what it purports to be?

Attribution — Who controlled the relevant wallet or account?

Authorization — Was the transaction authorized?

Completeness — Has relevant surrounding data been omitted?

Technical reliability — Was the blockchain, wallet or analytical tool functioning reliably?

Legal relevance — What legal fact does the blockchain record actually prove?

Thus:

Blockchain immutability ≠ complete legal proof.

A transaction can be permanently recorded on-chain while the identity of the person behind the wallet remains disputed.

3. UAE Statutory Framework

A. Federal Evidence Law — Federal Decree-Law No. 35 of 2022

The UAE Evidence Law contains a dedicated regime for electronic evidence.

Article 53 defines electronic evidence broadly. Article 54 includes electronic records, electronic instruments, electronic signatures, electronic correspondence, modern means of communication, electronic media and other electronic evidence. Articles 55–63 then regulate the evidentiary treatment, validity, production and extracts of electronic evidence.

This is particularly important for blockchain because a blockchain transaction may be demonstrated through:

transaction hashes;

wallet addresses;

block numbers;

timestamps;

node records;

exchange records;

wallet records;

smart-contract logs;

blockchain explorers;

cryptographic signatures;

custody records;

forensic reports.

The statute does not need to name every emerging technology individually for the broad electronic-evidence framework to become relevant.

4. Article 54 and Blockchain Evidence

Article 54 expressly recognizes modern electronic forms of evidence.

This means that blockchain evidence should ordinarily be analyzed according to its electronic characteristics and reliability, rather than rejected simply because it is technologically different from paper evidence.

A blockchain record can therefore potentially function as:

evidence of a transaction;

evidence of timing;

evidence of transfer;

evidence of smart-contract execution;

evidence of digital-asset movement;

corroborating evidence concerning possession or control.

However, the evidentiary question remains:

What proposition does the blockchain record actually establish?

For example:

A blockchain record may establish:

“5 BTC moved from Address A to Address B at a particular block.”

It does not necessarily establish:

“Person X voluntarily transferred 5 BTC to Person Y under a valid contract.”

The second proposition requires additional evidence.

5. Federal Electronic Transactions and Trust Services Law

Federal Decree-Law No. 46 of 2021 is also important.

The legislation recognizes electronic documents, electronic signatures, electronic authentication and automated electronic transactions. It provides that electronic documents do not lose legal force merely because they are electronic. It also contains rules concerning storage, integrity, attribution and automated transactions.

Particularly relevant principles include:

Electronic document integrity

The law requires electronic records to be stored in a manner capable of demonstrating accurate representation of the information originally created, sent or received.

Attribution

Electronic documents can be attributed to an originator in specified circumstances, including where they are sent through an authorized person or an automated electronic medium.

Original electronic records

The law recognizes technical evidence of integrity when determining whether an electronic document satisfies an original-document requirement.

Automated transactions

Contracts may be formed through automated electronic systems without direct human intervention.

These principles are highly relevant to smart contracts and blockchain transactions.

6. Blockchain Immutability and Its Limits

A common misconception is:

“Blockchain cannot be changed, therefore blockchain evidence is automatically conclusive.”

That is legally incorrect.

Blockchain technology can provide strong evidence of ledger integrity, but other questions remain.

Example

Suppose a blockchain shows:

Wallet A → Wallet B → 100 ETH.

The blockchain may reliably establish the transaction.

But the court may still have to determine:

Who owned Wallet A?

Who controlled the private key?

Was Wallet A hacked?

Was the transaction authorized?

Was the transfer made pursuant to a contract?

Was the wallet held by an exchange?

Was the transfer made by an employee or agent?

Was the transaction caused by a smart-contract exploit?

What consideration existed?

What legal relationship existed between the parties?

Therefore:

Ledger integrity is only one component of evidentiary integrity.

7. Main Components of Blockchain Forensic Integrity

A. Transaction Hash

The transaction hash helps identify a particular blockchain transaction.

The forensic examiner should preserve:

transaction hash;

block number;

block hash;

transaction index;

sending address;

receiving address;

amount;

transaction fee;

relevant token identifier;

smart-contract address where applicable.

B. Wallet Address

A wallet address is generally a cryptographic identifier.

It should not automatically be equated with a natural or legal person.

The evidentiary chain should therefore be:

Wallet address → control → identity → authorization.

This distinction is fundamental.

C. Private-Key Control

Private-key evidence can be highly important.

Possible evidence includes:

wallet creation records;

hardware-wallet records;

signing activity;

exchange account records;

authentication records;

custody agreements;

device evidence;

access logs.

Possession of a private key may strongly support control, but the legal significance of control still depends upon the circumstances.

D. Digital Signatures

Cryptographic signatures can demonstrate that a transaction was authorized by the holder of a relevant private key.

But the forensic question is not merely:

“Was the transaction cryptographically signed?”

It may also be:

“Who controlled the signing mechanism?”

For example, a company may maintain a corporate wallet through:

several directors;

an institutional custodian;

a multisignature arrangement;

an employee;

an automated trading system.

Cryptographic authenticity and legal authority therefore remain separate questions.

8. Timestamp Integrity

Blockchain timestamps can be useful, but forensic analysis should not assume that a blockchain timestamp is identical to a conventional human-created timestamp.

An expert may need to examine:

block time;

network validation;

exchange timestamps;

wallet logs;

server records;

email records;

device logs;

smart-contract events.

The strongest chronology may result from multiple independent digital sources corroborating one another.

9. Chain Analytics and Attribution

Blockchain analytics can connect addresses with:

exchanges;

custodians;

known services;

clusters of addresses;

transaction patterns.

But analytical attribution must be distinguished from direct proof.

For example:

Address A frequently interacts with Exchange X.

does not necessarily prove:

Person Y owns Address A.

The expert should explain the methodology used to move from blockchain activity to attribution.

10. Forks, Reorganizations and Network Issues

Forensic integrity can become complicated when blockchain systems experience:

chain forks;

reorganizations;

competing versions;

protocol upgrades;

smart-contract migrations;

token swaps;

bridge transactions;

layer-two transactions.

The expert should identify the relevant blockchain and the precise state of that blockchain at the relevant time.

11. Smart Contracts

Smart contracts create a further evidentiary layer.

A smart contract may automatically execute:

Condition → Code → Transaction.

But a court may need to examine:

Agreement → Code → Execution → Legal consequence.

Code execution does not necessarily resolve:

contractual interpretation;

mistake;

fraud;

unauthorized access;

unjust enrichment;

negligence;

breach;

restitution.

Consequently, forensic examination may need both:

technical evidence and legal/contractual evidence.

12. Expert Evidence

Blockchain disputes may require specialist evidence concerning:

blockchain architecture;

cryptography;

wallet security;

transaction tracing;

smart-contract operation;

private-key control;

exchange records;

cyber-forensics;

digital-device extraction.

The expert should ordinarily distinguish between:

Technical conclusion

“The transaction was signed using the private key associated with Wallet A.”

and:

Legal conclusion

“Therefore, the defendant is legally liable.”

The first may be within technical expertise; the second is ordinarily a matter for the court.

This distinction is particularly visible in Gate Mena v Tabarak, where the DIFC Court accepted technical expert evidence concerning the Trezor wallet and its operation but rejected portions of expert material that went beyond technical matters into conclusions reserved for the Court.

13. Case Law

Case 1 — Gate Mena DMCC / Huobi Mena FZE v Tabarak Investment Capital Ltd & Christian Thurner [2020] DIFC TCD 001

This is the most directly relevant UAE authority.

The dispute concerned a proposed cryptocurrency transaction involving 300 BTC, a Trezor hardware wallet and the subsequent transfer of almost all of the Bitcoin to another wallet.

The Court considered:

wallet technology;

seed phrases;

private-key control;

blockchain transfers;

expert technical evidence;

contemporaneous emails;

WhatsApp communications;

wallet evidence;

the credibility of witnesses.

The Court accepted expert evidence explaining the operation of the relevant Trezor wallet and concluded, on the evidence, that the relevant individuals had obtained the seed phrase and used it to access and misappropriate the Bitcoin. At the same time, the Court excluded expert conclusions that crossed from technical evidence into matters exclusively for judicial determination.

Principle

Blockchain evidence should be examined together with:

wallet evidence + device evidence + communications + expert analysis + witness evidence.

Importance

This case demonstrates that blockchain evidence does not exist in isolation. Its forensic significance depends upon establishing the relationship between the blockchain transaction and the human actors behind it.

14. Case 2 — Gate Mena DMCC / Huobi Mena FZE v Tabarak Investment Capital Ltd [2023] DIFC CA 002

The DIFC Court of Appeal considered the appeal from the first-instance cryptocurrency judgment.

The Court described the dispute as involving emerging problems created by cryptocurrency transactions and fraud and recognized the difficulty of applying established legal concepts to digital assets.

The Court also emphasized the importance of expert evidence and the technical characteristics of Bitcoin and wallets. It ordered a retrial in relation to part of the case against Tabarak.

Forensic significance

The appellate decision demonstrates that:

technical blockchain evidence must be integrated into the ordinary judicial process rather than treated as self-proving.

A blockchain record may be technically authentic while questions of custody, authorization, contractual responsibility and causation remain unresolved.

15. Case 3 — Gate Mena DMCC / Huobi Mena FZE v Tabarak Investment Capital Ltd [2024] DIFC DEC 002

The matter subsequently moved into the DIFC Digital Economy Court.

The retrial involved expert evidence specifically concerning cryptocurrency and the legal characterization of Bitcoin, together with the existing factual and evidentiary record.

The Court's case-management approach demonstrates the increasingly specialized treatment of digital-asset disputes in the DIFC.

Principle

Complex cryptocurrency disputes may require:

specialized expert evidence;

technical evidence;

historical transaction evidence;

causation evidence;

valuation evidence;

legal characterization.

Forensic importance

Blockchain evidence may therefore become part of a multi-disciplinary evidentiary package, rather than a standalone record.

16. Case 4 — Michael George Forbes v Robert Kidd [2025] DIFC CFI 081

This case provides a particularly useful analogy for blockchain forensic evidence because it concerned metadata.

A party relied upon a metadata report concerning the creation date of a deed.

The Court emphasized that the metadata report had not been properly proved or explained. No witness had been questioned about it and no expert had properly explained the conclusions that were said to arise from the metadata.

The appeal court therefore did not treat the mere presence of the metadata report in the trial bundle as sufficient proof of its substantive implications.

Blockchain relevance

The lesson is highly important:

Technical data must be properly proved and interpreted.

A blockchain explorer screenshot should not automatically be treated as conclusive merely because it displays blockchain information.

The party may need to establish:

source;

extraction method;

reliability;

completeness;

interpretation;

connection with the disputed transaction.

17. Case 5 — Thamer Abdulaziz Albulaihid v Nasser Shehata & Others [2023] DIFC CFI 079

The dispute involved software, source-code materials, demonstrations and metadata.

The Court considered claims that metadata and technical materials demonstrated authorship and timing.

The Court emphasized that metadata could corroborate the timing or authorship of particular files, but it did not automatically establish that those files formed part of the disputed final software product.

Blockchain relevance

This is directly analogous to blockchain attribution.

For example:

Wallet A interacted with Contract B.

That does not automatically prove:

Defendant X legally owned Wallet A.

Likewise:

File X was created by Person Y.

does not automatically prove:

Person Y created the disputed final system.

Principle

Technical provenance must be connected to the legal proposition for which it is relied upon.

18. Case 6 — Registrar of the DIFC Courts v Shaun Gregory Morgan & Franklin Morgan Legal Advisory LLC [2024] DIFC CFI 090

This case involved forensic analysis of documents.

Technical analysis identified:

suspicious metadata;

inconsistencies between creation and modification dates;

copied logos;

altered names;

inconsistencies in formatting;

other indicators of possible document manipulation.

The forensic reports were used to assess the authenticity of purported official documents.

Blockchain relevance

The case demonstrates the importance of forensic examination beyond the apparent face of a digital record.

A blockchain dispute may similarly require examination of:

wallet screenshots;

exported transaction histories;

exchange records;

device images;

private-key evidence;

API records;

transaction-analysis reports.

Principle

Digital appearance is not equivalent to digital authenticity.

19. Case 7 — IDBI Bank Ltd v Mabani Delma General Contracting Co LLC & Others [2018] DIFC CFI 070

This litigation involved extensive electronic-document issues.

The Court considered allegations concerning missing electronic material, device access, backups and the possibility of forensic imaging.

The dispute illustrates the importance of proper preservation and disclosure of electronic evidence.

Blockchain relevance

Blockchain evidence may exist alongside off-chain evidence.

For example:

blockchain transaction + exchange account + email + wallet device + server record.

If one party controls the relevant off-chain evidence, preservation becomes critical.

A blockchain record may be immutable, but:

wallet software can change;

exchange records can disappear;

devices can be wiped;

account information can be deleted;

screenshots can be altered.

Therefore, on-chain immutability does not guarantee off-chain evidentiary integrity.

20. Case 8 — BAM Higgs & Hill LLC v Affan Innovative Structures LLC & Amer Affan

This DIFC authority demonstrates the evidentiary importance of technical file metadata.

The Court considered metadata associated with a technical computer file and evaluated what that metadata could actually establish concerning creation and use of the underlying material.

Blockchain relevance

The same methodology can apply to blockchain forensic reports:

Evidence of a digital event must be connected to the factual proposition being asserted.

A blockchain analyst should therefore explain not merely:

“This address transacted with that address.”

but:

“This transaction establishes X because the following independent evidence connects the address to the defendant.”

21. DIFC Digital Economy Court

The DIFC has gone further than merely applying ordinary evidence rules.

Part 58 of the DIFC Rules establishes a Digital Economy Court.

It expressly covers disputes concerning:

digital assets;

distributed ledger technology;

blockchains;

smart contracts;

substantial databases;

digitally stored data;

fintech;

AI;

digital payment platforms;

virtual-asset service providers.

The Rules define a digital asset broadly enough to include cryptoassets, digital tokens, smart contracts and other coded representations of value, rights, obligations, assets or transactions.

This makes the DIFC particularly significant for blockchain-related civil litigation within the UAE.

22. Digital Asset Custody and Blockchain Intelligence

The DIFC Courts have also announced specialized capabilities involving digital-asset custody and blockchain intelligence services for appropriate complex cases.

These initiatives are intended to support asset preservation, digital-asset investigations and technologically sophisticated dispute resolution.

This development reinforces an important principle:

Modern digital-asset litigation increasingly requires institutional forensic capabilities rather than reliance solely on traditional documentary evidence.

23. Electronic Evidence and Metadata Under DIFC Rules

DIFC Rules Part 28 expressly treats electronic documents as including:

email;

databases;

server material;

backup material;

deleted electronic documents;

metadata.

The Rules also address the reasonableness of electronic searches and the production of native electronic documents.

This is significant for blockchain disputes because blockchain evidence often has to be reconstructed from several systems.

For example:

The strongest case usually results from corroboration across these sources.

24. Blockchain Evidence Chain

A useful forensic model is:

Layer 1 — Blockchain layer

Transaction hash
↓
Block
↓
Wallet address

Layer 2 — Cryptographic layer

Private key
↓
Digital signature
↓
Authorization

Layer 3 — Attribution layer

Wallet
↓
Exchange/account/device
↓
Person or company

Layer 4 — Transaction layer

Transfer
↓
Agreement
↓
Consideration/performance

Layer 5 — Legal layer

Contract
↓
Duty
↓
Breach
↓
Loss
↓
Remedy

The court should avoid jumping directly from Layer 1 to Layer 5.

25. Common Attacks on Blockchain Evidence

A defendant may challenge blockchain evidence by arguing:

1. Wrong blockchain

The evidence relates to a different chain or network.

2. Wrong wallet

The address is not associated with the defendant.

3. Lack of attribution

The address cannot be connected to the alleged owner.

4. Unauthorized transaction

The transaction resulted from hacking or theft.

5. Compromised private key

The private key was accessed by another person.

6. Incomplete transaction history

Only selected transactions were produced.

7. Misinterpretation

The blockchain record proves a transfer but not the legal purpose.

8. Faulty blockchain analytics

The analytical software or clustering methodology is challenged.

9. Screenshot evidence

A screenshot is presented without underlying technical records.

10. Expert overreach

The expert gives legal conclusions instead of technical opinions.

26. Forensic Preservation Protocol

A party intending to rely on blockchain evidence should ideally preserve:

transaction hash;

block number;

block hash;

wallet address;

complete transaction history;

relevant smart-contract address;

smart-contract version;

relevant chain/network;

wallet software information;

hardware-wallet information;

relevant private-key evidence where lawfully available;

exchange records;

KYC/account records;

device images;

access logs;

authentication records;

emails;

messaging records;

expert methodology;

blockchain explorer data;

original exports;

chain-analysis reports.

27. Chain of Custody

The forensic chain of custody should establish:

Who collected the evidence?

When was it collected?

From which device/system?

What tool was used?

What version of the tool was used?

Was the original preserved?

Was a forensic copy created?

Were cryptographic hashes calculated?

Who accessed the copy?

Was any alteration possible?

The more valuable or contested the asset, the more important this becomes.

28. Blockchain Explorer Evidence

A blockchain explorer is useful, but it should not automatically be equated with the blockchain itself.

An explorer is an interface through which blockchain information is presented.

The evidentiary hierarchy may therefore be:

Underlying blockchain data

↓

Independent node/API data

↓

Forensic extraction

↓

Blockchain explorer

↓

Screenshot

A screenshot may be convenient but can be weaker than a properly authenticated underlying record.

This does not mean a screenshot is necessarily inadmissible. Its weight depends upon the surrounding evidence and applicable procedural rules.

29. Expert Methodology

A blockchain expert report should preferably disclose:

Technical methodology

blockchain examined;

nodes or data sources used;

software used;

version of software;

analytical methodology;

assumptions;

limitations.

Attribution methodology

why an address is associated with a particular entity;

whether the attribution is direct or inferential;

whether exchange records were used;

whether KYC material was relied upon;

whether clustering was used.

Integrity methodology

hashes;

preservation process;

source verification;

duplicate verification;

chain-state verification.

Interpretation

The expert should distinguish:

What the data objectively shows

from:

What the expert infers from that data.

30. Court's Role

The court should not surrender legal judgment to blockchain technology.

The court determines:

relevance;

admissibility;

authenticity;

evidentiary weight;

contractual meaning;

legal ownership;

liability;

causation;

damages.

The expert assists the court on technical matters.

This distinction was particularly visible in the Gate Mena litigation, where technical expert evidence was accepted in relation to wallet operation but certain conclusions were excluded because they concerned matters for the Court rather than technical expertise.

31. Blockchain Evidence and Civil Liability

Blockchain evidence can become important in:

Contract disputes

Proof of:

payment;

performance;

automated execution;

token transfer;

contractual milestones.

Fraud

Proof of:

unauthorized transfer;

wallet movement;

concealment;

asset tracing.

Restitution

Blockchain records can assist in tracing assets through successive wallets.

Negligence

Evidence may establish:

failure to secure wallets;

inadequate custody;

unauthorized access;

failure of security controls.

Unjust enrichment

Blockchain records may demonstrate that one party received and retained digital assets.

Fiduciary disputes

Blockchain activity may help establish unauthorized transactions by trustees, directors or custodians.

32. Onshore UAE Courts vs DIFC Courts

This distinction is important.

Onshore UAE Courts

Primarily apply:

Federal Evidence Law;

Federal Electronic Transactions and Trust Services Law;

applicable UAE civil/commercial legislation;

UAE procedural rules.

DIFC Courts

Operate under their own procedural and evidentiary framework and now have specialized Digital Economy Court provisions.

The DIFC Rules expressly address blockchain and distributed-ledger disputes.

Therefore:

A DIFC decision concerning blockchain evidence should not automatically be described as a binding precedent for every onshore UAE Court.

It is better treated as highly relevant persuasive UAE jurisprudence, particularly where the factual and technological issues are similar.

33. Relationship Between Immutability and Authenticity

These concepts should be separated.

Thus:

Immutable ≠ authentic ≠ attributable ≠ conclusive.

34. Practical Litigation Checklist

Before relying on blockchain evidence in a UAE civil case, ask:

Identity

Who controls the wallet?

How is that person identified?

Is there exchange KYC evidence?

Transaction

What is the transaction hash?

What blockchain was used?

What block contains the transaction?

Is the transaction confirmed?

Integrity

Has the underlying data been preserved?

Was forensic hashing performed?

Is the source independently verifiable?

Attribution

What evidence connects the wallet to the defendant?

Is that evidence direct or circumstantial?

Authorization

Who controlled the private key?

Was the transaction authorized?

Was there a multisignature arrangement?

Context

What contract or legal relationship existed?

Was the transaction payment, security, investment or transfer?

Expert evidence

What methodology was used?

Are the expert's assumptions disclosed?

Does the expert distinguish fact from inference?

Completeness

Has the entire transaction history been produced?

Have related wallets been examined?

Have relevant off-chain records been preserved?

35. Examination-Ready Answer

Forensic integrity of blockchain evidence in UAE civil law refers to the ability to establish that blockchain-related evidence is authentic, complete, reliable, properly preserved and attributable to the relevant person or transaction.

The UAE Evidence Law, Federal Decree-Law No. 35 of 2022, recognizes electronic evidence, including electronic records, electronic instruments, electronic signatures, electronic correspondence, modern communications and other electronic evidence. The Federal Decree-Law No. 46 of 2021 further establishes rules concerning electronic documents, integrity, attribution, authentication and automated transactions.

Blockchain evidence may establish the occurrence and chronology of digital transactions, but it does not automatically prove legal ownership, identity, authorization or contractual liability.

The leading UAE blockchain-related authority is Gate Mena DMCC v Tabarak Investment Capital Ltd, where the DIFC Court considered a 300-BTC transaction, hardware wallets, seed phrases, blockchain transfers and expert evidence. The Court demonstrated that technical blockchain evidence must be evaluated together with witness, documentary and expert evidence.

Other DIFC authorities concerning metadata, forensic analysis and electronic-document preservation reinforce the proposition that technical data must be properly proved, authenticated and connected to the factual proposition for which it is relied upon.

Therefore, the central evidentiary principle is:

Blockchain immutability establishes only part of forensic integrity; attribution, authorization, provenance, preservation, interpretation and legal relevance must also be demonstrated.

36. Case-Law Summary Table

37. Key Legal Formula

A useful formula for UAE blockchain litigation is:

Blockchain record

↓

Technical integrity

↓

Transaction verification

↓

Wallet attribution

↓

Identity/control

↓

Authorization

↓

Underlying contractual or legal relationship

↓

Loss or legal consequence

↓

Remedy

Skipping one of these stages may weaken the evidentiary chain.

38. Conclusion

The forensic integrity of blockchain evidence in UAE civil law is best understood as a multi-layered evidentiary problem.

Blockchain technology can provide unusually strong evidence of transaction history because distributed ledgers can preserve records in a tamper-resistant manner. But the legal question is broader than whether a transaction appears on-chain.

A UAE court may still need to determine:

who controlled the wallet;

whether the transaction was authorized;

whether the digital record is complete;

whether off-chain evidence supports the blockchain record;

whether expert methodology is reliable;

whether metadata and forensic reports have been properly proved;

what contractual or civil relationship existed;

and what legal consequence follows.

The UAE's modern electronic-evidence framework provides the foundation for dealing with these issues, while the DIFC's Digital Economy Court has developed a particularly specialized procedural environment for blockchain and digital-asset disputes.

The fundamental principle is therefore:

A blockchain record may be exceptionally strong evidence of a digital event, but forensic integrity requires proving the complete evidentiary chain from the digital event to the human or legal obligation that is alleged to follow from it.