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
1890844
Beacon Timestamp
2026-08-05T13:33:00.000Z
Output Value
B2C19737515AB231C081E87804B1F159EABD30946ED1194273106DCED5427FE58CD151E6A91497CA005D8089FD4B6DC4DA7EA420BFB3B3C9A2D9989A8711EB0A
Capture Method
HTTP Polling
Captured At
Aug 5, 2026, 1:37 PM UTC
Entropy Data
{
  "pulse": {
    "chainIndex": 2,
    "outputValue": "B2C19737515AB231C081E87804B1F159EABD30946ED1194273106DCED5427FE58CD151E6A91497CA005D8089FD4B6DC4DA7EA420BFB3B3C9A2D9989A8711EB0A",
    "pulseIndex": 1890844,
    "timeStamp": "2026-08-05T13:33:00.000Z",
    "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 3 m 10 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 1:32 PM UTC
Truestamp-asserted ordering
Captured
Entropy
Aug 5, 2026 1:37 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 2026-08-05T13:38:00Z, inserted_at 2026-08-05T13:37:05Z, stellar_commit 2026-08-05T13:40:01Z
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
f7381e001a12415a48902de51f18f7ce3967a8168062cefc4654ef57eec71284
Epoch Merkle Proof
depth 3 · R/L/R
Show Merkle path
  1. R 1f33da4d8e4160d314097362e3063d7f34c1ad0d8916c3b589c03f384782df0f
  2. L 3cf6bad47cfeb127d4e6d2c92af23220585dca0744dbddbcc5abd280e9e84217
  3. R f3a70090607645863f86e9e0bf305b150d7dc806ddd4b5cf079dfe201c78efaf
Epoch Merkle Root
f8d55948a93265755dcbe010a57da8378e9fba370964ab39e1bc1359f145eb7d
On-Chain Transaction
Ledger: 63811279
On-chain time: 2026-08-05T13:40:01Z
MEMO_HASH: f8d55948a93265755dcbe010a57da8378e9fba370964ab39e1bc1359f145eb7d

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