Entropy Verification

All cryptographic checks passed within the Truestamp blockchain.

Return to Entropy

NIST Beacon

Raw entropy captured from the external source

Pulse Index
1891131
Beacon Timestamp
2026-08-05T18:20:00.000Z
Output Value
A7AA8831462B756C9A67114DFC5B951F9A121EBBCCC78B630114B42AEBD162BC73D424DBD7B2DA3715545A110E60D69DED3E24E233DD92F360F3BDE82C880ABA
Capture Method
HTTP Polling
Captured At
Aug 5, 2026, 6:23 PM UTC
Entropy Data
{
  "pulse": {
    "chainIndex": 2,
    "outputValue": "A7AA8831462B756C9A67114DFC5B951F9A121EBBCCC78B630114B42AEBD162BC73D424DBD7B2DA3715545A110E60D69DED3E24E233DD92F360F3BDE82C880ABA",
    "pulseIndex": 1891131,
    "timeStamp": "2026-08-05T18:20:00.000Z",
    "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 14 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 6:19 PM UTC
Truestamp-asserted ordering
Captured
Entropy
Aug 5, 2026 6:23 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 2026-08-05T18:24:00Z, inserted_at 2026-08-05T18:23:58Z, stellar_commit 2026-08-05T18:25:05Z
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
942d116c4cdc227c585dd8c9c7e24d34d009d182aaed25d04dd9c9ddd0d231ae
Epoch Merkle Proof
depth 3 · L/L/R
Show Merkle path
  1. L 7e3b8d09a4c5f40d9e9ec22e94745a573365b719a82aef612e0dc2bd62794adc
  2. L ab64ecca024d22cb1068675babc3b72111b50a8e51ad839300b5fc1c78004322
  3. R eea49c02d01bcb2190be27bc16f40be7b0b992ec9ac9514cd0582a4520554636
Epoch Merkle Root
e1e02a1ef8c9c2e668e71c48c01c419864727710314f1d47bd2be11229ef20e7
On-Chain Transaction
Ledger: 63814312
On-chain time: 2026-08-05T18:25:05Z
MEMO_HASH: e1e02a1ef8c9c2e668e71c48c01c419864727710314f1d47bd2be11229ef20e7

Proof Chain

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

Drag to pan Use buttons to zoom Tap a node to inspect

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