Entropy Verification

All cryptographic checks passed within the Truestamp blockchain.

Return to Entropy

NIST Beacon

Raw entropy captured from the external source

Pulse Index
1890798
Beacon Timestamp
2026-08-05T12:47:00.000Z
Output Value
F73D9F7D2840D770FF7837EC1DC03875062D5E1AE247D243FF97D255A1A58A368E99997BC2C0081F6789CEEAC8C2D0FA0B1045385F8BDCB64A66F34474B49A89
Capture Method
HTTP Polling
Captured At
Aug 5, 2026, 12:51 PM UTC
Entropy Data
{
  "pulse": {
    "chainIndex": 2,
    "outputValue": "F73D9F7D2840D770FF7837EC1DC03875062D5E1AE247D243FF97D255A1A58A368E99997BC2C0081F6789CEEAC8C2D0FA0B1045385F8BDCB64A66F34474B49A89",
    "pulseIndex": 1890798,
    "timeStamp": "2026-08-05T12:47:00.000Z",
    "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 12:46 PM UTC
Truestamp-asserted ordering
Captured
Entropy
Aug 5, 2026 12:51 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 2026-08-05T12:52:00Z, inserted_at 2026-08-05T12:51:01Z, stellar_commit 2026-08-05T12:55:06Z
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
2c691c0d0227ff0d86b6dc8ce3122d772d3511fd7155a40b650e0c39ccc9c67b
Epoch Merkle Proof
depth 3 · L/R/R
Show Merkle path
  1. L 6d23ca14fb721b3eb052f88e36c860cde516f77a4bb11edbfdba519dd9eac478
  2. R 65be75ad3f4f3012837ca2e13adffece32937dd9871fa992e8788106420cf24a
  3. R 2042b9bc7019c69c5425ecfa113ca19bab5375ac5c7c131f2568feefafa2b454
Epoch Merkle Root
6e2b3f68a2d98734f496c6862758f0a15ea04eee8c8e83882c0d38d4462e374b
On-Chain Transaction
Ledger: 63810800
On-chain time: 2026-08-05T12:55:06Z
MEMO_HASH: 6e2b3f68a2d98734f496c6862758f0a15ea04eee8c8e83882c0d38d4462e374b

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