Entropy Verification

All cryptographic checks passed within the Truestamp blockchain.

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NIST Beacon

Raw entropy captured from the external source

Pulse Index
1890466
Beacon Timestamp
2026-08-05T07:15:00.000Z
Output Value
21C82949B8AD98E6C3790CF0DBC8C6D5BC942EF9767A5ABA767F61B178A7C6B65C1B896AF24AC6EC360FAEFCA34840BA4CA0C1E1F47CC9B939464B99D65CE8E5
Capture Method
HTTP Polling
Captured At
Aug 5, 2026, 7:18 AM UTC
Entropy Data
{
  "pulse": {
    "chainIndex": 2,
    "outputValue": "21C82949B8AD98E6C3790CF0DBC8C6D5BC942EF9767A5ABA767F61B178A7C6B65C1B896AF24AC6EC360FAEFCA34840BA4CA0C1E1F47CC9B939464B99D65CE8E5",
    "pulseIndex": 1890466,
    "timeStamp": "2026-08-05T07:15:00.000Z",
    "version": "2.0"
  }
}

Submission Window

Each layer places this entropy observation between a submitted-after edge and a submitted-before edge. Only the submitted-before edge is grounded outside Truestamp, by a public-chain commitment transaction. The submitted-after edge is asserted by Truestamp's own block ordering and is not established by this proof. A witness Truestamp writes no commitment to, such as the NIST Beacon, can speak only to the submitted-after edge and so forms no window of its own.

Truestamp blocks
Truestamp-asserted window of 59 s

Both edges are read from Truestamp's own block clock. Neither is confirmed by an outside witness.

Stellar
Bounded to a 2 m 8 s window

The submitted-before edge comes from the Stellar commitment transaction. The submitted-after edge is asserted by Truestamp's block ordering, not by Stellar.

Bitcoin

The submitted-before edge comes from the Bitcoin commitment transaction. The submitted-after edge is asserted by Truestamp's block ordering, not by Bitcoin.

NIST Beacon
Submitted after
NIST Pulse
Aug 5, 2026 7:14 AM UTC
Truestamp-asserted ordering
Captured
Entropy
Aug 5, 2026 7:18 AM UTC
Submitted before
No NIST Commitment
Not witnessed
Truestamp writes no commitment to the NIST Beacon

The NIST Randomness Beacon is a signed public beacon, not a chain Truestamp commits to, so it can witness only the submitted-after edge. The pulse value is independently checkable in NIST's public records; its ordering against this subject is asserted by Truestamp's block ordering.

Verification

Pending

Verification status is being determined.

Internal Integrity
All 9 checks passed inside the Truestamp blockchain.
Show technical breakdown
Timing
committed_at 2026-08-05T07:19:00Z, inserted_at 2026-08-05T07:18:59Z, stellar_commit 2026-08-05T07:20:05Z
Blockchain
External Stellar verification skipped
External entropy source verification skipped
Public-Chain Verification
Stellar Public Pending

Queued to verify against Stellar.

Show technical details
Block Hash
09d1bc8899b2d657b2c94cd4491102334c717e99322ffc83353707a53e54bcda
Epoch Merkle Proof
depth 3 · L/L/R
Show Merkle path
  1. L 4f9194bb8d1bdce662c3a4dbecba673a883fe70be6f6defecc0dbc776b408d41
  2. L cf7fa858ca421fe83853a4b9cc95982eeaa777325ff81d22a00a20a35c728227
  3. R 1d27f7195b7250a798fc0733e7a2ddf65ebad7936d84ffc6e9f6ab8b9de582f2
Epoch Merkle Root
76498e7554bff2fd0b0ae45a800b394da6fe7b12dfaa63ccdbe551a0c6a52cca
On-Chain Transaction
Ledger: 63807221
On-chain time: 2026-08-05T07:20:05Z
MEMO_HASH: 76498e7554bff2fd0b0ae45a800b394da6fe7b12dfaa63ccdbe551a0c6a52cca

Proof Chain

Interactive visualization of the cryptographic proof path from your data to public blockchains. Tap any node for details.

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Proof

This self-contained proof has everything needed to independently verify this entropy observation, with no connection to Truestamp required. Verify it offline anytime using the open-source Truestamp CLI.

Protect Your Data With Cryptographic Proof

Prove when your files, documents, or data existed with permanent, tamper-proof records anyone can independently verify.

SHA-256 + Ed25519
Industry-standard cryptography
Merkle Tree Proofs
Efficient verification at any scale
Stellar & Bitcoin
Public blockchain commitments