They Deleted the Chat.
You Kept the Receipt.
Anyone can fake a screenshot in 10 seconds using online inspect tools. ProofCore gives you an independently verifiable cryptographic receipt for agreements, promises, payments, and files before the other party taps 'Delete for Everyone'.
ProofCore is preventive — not a message recovery tool
ProofCore cannot recover messages that were deleted yesterday. You must forward and seal them while they are still visible in your Telegram app.
FORWARD
Forward anything to the Telegram bot: text messages, voice notes, payment receipts, agreements, or media.
CAPTURE
ProofCore extracts raw platform metadata: sender ID, channel origins, timestamps, and calculates a SHA-256 fingerprint.
ANCHOR
A cryptographic commitment is batched and anchored to the TON Blockchain, making the timestamp tamper-proof.
KEEP & VERIFY
Download your offline ZIP evidence package. The blockchain proof lives forever; keeping the ZIP ensures your raw file does too.
Free to try · No Web3 wallet or gas required
Forensic Demonstration
A Real Telegram Forward, Dissected
This specimen demonstrates what metadata Telegram transmits during message forwarding and how that data is mathematically locked to a public blockchain anchor.
... (message body truncated for demonstration) ...
🚀 Defy convention — redefine the norm! ✊
ProofCore Verification Summary
Level 1: Captured Platform Metadata
Level 2: Raw Forensic JSON Envelope ▼
{
"captured_at_utc": "2026-09-02T13:10:54.375965+00:00",
"raw_message": {
"message_id": 1884,
"date": 1788354653,
"chat": {
"id": 8773333264,
"type": "private",
"username": "proofcore_official",
"first_name": "ProofCore Protocol"
},
"forward_origin": {
"type": "channel",
"date": 1722283160,
"chat": {
"id": -1001006503122,
"type": "channel",
"title": "Pavel Durov",
"username": "durov"
},
"message_id": 339,
"author_signature": "Pavel Durov"
}
},
"entities": {
"forward_origin": {
"id": -1001006503122,
"type": "channel",
"title": "Pavel Durov",
"username": "durov",
"avatar_sha256": "0ae7244a713b5d1336907a8732ff7e18342208ad601bdb80555f08b43c2d4727"
}
},
"assets": [
{
"filename": "message.html",
"size": 3412,
"sha256": "6001835047a8bc5f1eb969fcbd07ea5048ece4bfb1e232daa50d62bd713ed645"
}
],
"onchain": {
"network": "TON-Mainnet",
"merkle_root": "591d6ab5ca81185eebf8dee741fb4b0c34e5f685e1ca13c5d6ee4d8f763084f5",
"ton_tx_hash": "ace68a59ad312d1e713e792fc5f7a7d18c5c53126597e87afecdb7a62ca23fe0"
}
}
Level 3: Standalone Evidence Package
Contains the original asset, full JSON metadata, PDF certificate, and offline Python/HTML verifiers. Zero vendor lock-in.
Epistemic Clarity: What We Prove vs What We Don't
Trustworthy legal engineering requires drawing exact mathematical boundaries around what digital evidence can and cannot establish.
🟢 What ProofCore Proves
The preserved asset matches its SHA-256 cryptographic digest byte-for-byte.
The commitment belongs to the specific Merkle tree batch anchored on-chain.
The cryptographic commitment was publicly recorded in a TON block by the blockchain timestamp.
Preserves source parameters as transmitted by the Telegram platform at capture.
🔴 What ProofCore Cannot Prove
We do not prove that statements inside the message are factually accurate.
We do not establish who physically operated the Telegram account.
We do not determine whether an agreement satisfies contract law requirements.
Admissibility is determined by the presiding court under applicable evidentiary rules.
Evidentiary Foundations
Why Digital Evidence Demands More Than Screenshots
⚖️ Griffin v. State (419 Md. 343, 2011) ↗
The Maryland Court of Appeals held that a printout of a social-media profile lacked sufficient authentication foundation because the record did not establish that the purported author actually created or posted the text.
→ Lesson: Visual depictions alone are vulnerable without underlying metadata and custody records.
🤖 Mendones v. Cushman & Wakefield (2025) ↗
A California court imposed severe terminating sanctions after forensic examination revealed that submitted chat exhibits and screenshots had been materially altered and generated using AI.
→ Lesson: In an era of generative AI, exported evidence must be backed by reproducible cryptographic hashing.
Legal & Evidentiary Frameworks
🇺🇸 US Federal Rules of Evidence: Rule 902(13) & 902(14) Cornell Law ↗
FRE 902 provides mechanisms for self-authentication of electronic evidence without requiring live technician testimony. Rule 902(13) addresses records generated by an electronic process or system that produces an accurate result; Rule 902(14) governs data copied from an electronic storage medium or file authenticated by a digital identification process (e.g. SHA-256 hash value).
🇪🇺 EU eIDAS Framework (Regulation EU 2024/1183) EUR-Lex ↗
Under Article 41(1) and Article 45k, electronic timestamps and electronic ledgers cannot be denied legal effect or admissibility solely because they exist in electronic format. ProofCore creates decentralized cryptographic commitments and does not claim to be a Qualified Trust Service Provider (QTSP).
🔒 Privacy by Architecture (Zero-Storage Policy)
Raw messages, attachments, and names are never written to the public blockchain. Only irreversible cryptographic commitments (Merkle Roots) are anchored on-chain, eliminating public PII exposure.
Disclaimer: ProofCore provides technical cryptographic evidence. Admissibility and weight of evidence are determined by the relevant court or tribunal according to applicable procedural laws.