Entropy Verification

All cryptographic checks passed within the Truestamp blockchain.

Return to Entropy

NIST Beacon

Raw entropy captured from the external source

Pulse Index
1890468
Beacon Timestamp
2026-08-05T07:17:00.000Z
Output Value
B188B9ABDDA46A914E1057B47274D72E625F46EA6E763EDE2C305C32802B6C156393D24E99B84E15581DBDCD8B2EC88E8D17FE73578C4607D6C84A3F33B0679A
Capture Method
HTTP Polling
Captured At
Aug 5, 2026, 7:21 AM UTC
Entropy Data
{
  "pulse": {
    "chainIndex": 2,
    "outputValue": "B188B9ABDDA46A914E1057B47274D72E625F46EA6E763EDE2C305C32802B6C156393D24E99B84E15581DBDCD8B2EC88E8D17FE73578C4607D6C84A3F33B0679A",
    "pulseIndex": 1890468,
    "timeStamp": "2026-08-05T07:17:00.000Z",
    "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 4 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 7:16 AM UTC
Truestamp-asserted ordering
Captured
Entropy
Aug 5, 2026 7:21 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 2026-08-05T07:22:00Z, inserted_at 2026-08-05T07:21:00Z, stellar_commit 2026-08-05T07:25:02Z
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
57fef4319b1d1bc3adf35d088ee52c88573e9c766733ef5b76a4e9389c204b93
Epoch Merkle Proof
depth 3 · L/R/R
Show Merkle path
  1. L 920e6b6301a37de39bdcb388d5de5f2178107e6daab30645bd306dea10eda8ee
  2. R a7b48366cb39c5cb5f801899b66b9d67ec078dd905bd12270caecad180030efe
  3. R 38980de20b4ca7c6dee954aa95a11202aa8710466639a12589a3e54f4944b6af
Epoch Merkle Root
47f38f04eca5fda72c4009c8d4f330010bc55b7bafa33e894d805b6d852159a3
On-Chain Transaction
Ledger: 63807274
On-chain time: 2026-08-05T07:25:02Z
MEMO_HASH: 47f38f04eca5fda72c4009c8d4f330010bc55b7bafa33e894d805b6d852159a3

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