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
1890768
Beacon Timestamp
2026-08-05T12:17:00.000Z
Output Value
974D7C159D3C3D61AD1B30EE50BF35F67CB18497E407F4981A3B496CAAC7947899EF463E8A946382425CFB5FEC178E4C7F75B06D0F56D220E2C1AADD2BEEE1C4
Capture Method
HTTP Polling
Captured At
Aug 5, 2026, 12:20 PM UTC
Entropy Data
{
  "pulse": {
    "chainIndex": 2,
    "outputValue": "974D7C159D3C3D61AD1B30EE50BF35F67CB18497E407F4981A3B496CAAC7947899EF463E8A946382425CFB5FEC178E4C7F75B06D0F56D220E2C1AADD2BEEE1C4",
    "pulseIndex": 1890768,
    "timeStamp": "2026-08-05T12:17:00.000Z",
    "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 5 m 12 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 12:15 PM UTC
Truestamp-asserted ordering
Captured
Entropy
Aug 5, 2026 12:20 PM 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 2026-08-05T12:21:00Z, inserted_at 2026-08-05T12:20:55Z, stellar_commit 2026-08-05T12:25:03Z
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
9014670edc708191282fef162a5a376018927443f57f97eb71d7eb62ba636547
Epoch Merkle Proof
depth 3 · R/R/R
Show Merkle path
  1. R 73eb5f48a91fe50cebb86fe9f9cceeeb52c0a7c682943d544e1b29ac072ea325
  2. R 4b6964283c8f25936b965ba71f105683681fa924cc7a952cc5faa5d7ddca5687
  3. R 1f3a3ce0070e633993005512274d89cce351f295c346e0bdefb9bd00e432c5ad
Epoch Merkle Root
4216d6a34be41c399651011cb93028aa329bb7d31035a337ad54fa3b12813d6c
On-Chain Transaction
Ledger: 63810479
On-chain time: 2026-08-05T12:25:03Z
MEMO_HASH: 4216d6a34be41c399651011cb93028aa329bb7d31035a337ad54fa3b12813d6c

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