Entropy Verification

All cryptographic checks passed within the Truestamp blockchain.

Return to Entropy

NIST Beacon

Raw entropy captured from the external source

Pulse Index
1890848
Beacon Timestamp
2026-08-05T13:37:00.000Z
Output Value
18E4E8D7CA20341A9D028DD61A2B3420036E93590AD11A4A99D110A3733E8C9A011BA287A5FF2928217F79E5D638061B219D1C97643B868814C893CA4FB0FE28
Capture Method
HTTP Polling
Captured At
Aug 5, 2026, 1:41 PM UTC
Entropy Data
{
  "pulse": {
    "chainIndex": 2,
    "outputValue": "18E4E8D7CA20341A9D028DD61A2B3420036E93590AD11A4A99D110A3733E8C9A011BA287A5FF2928217F79E5D638061B219D1C97643B868814C893CA4FB0FE28",
    "pulseIndex": 1890848,
    "timeStamp": "2026-08-05T13:37:00.000Z",
    "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 1:36 PM UTC
Truestamp-asserted ordering
Captured
Entropy
Aug 5, 2026 1:41 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 2026-08-05T13:42:00Z, inserted_at 2026-08-05T13:41:00Z, stellar_commit 2026-08-05T13:45:03Z
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
05489eb248b2905098925cb6c2628c4cf12016c3819076c285e9c7a41d33dc5d
Epoch Merkle Proof
depth 3 · L/R/R
Show Merkle path
  1. L 843146542ea0062fe7e673cfe0b007fd3c66ee8f54656a51c7fe5f1d91fa4465
  2. R d0958059cec70b49a7d43442e2f9fe99e0f1bb65442ae4dc49fee8966fd93b79
  3. R 226f91b1e77675fd871075bb033fadd1ba18307d30a6b8da7853cdd4f850050d
Epoch Merkle Root
9f33354d3d0bda6e0ba730816f9f87a861acbf7c5417de0b750cdee7c7c6ef1b
On-Chain Transaction
Ledger: 63811333
On-chain time: 2026-08-05T13:45:03Z
MEMO_HASH: 9f33354d3d0bda6e0ba730816f9f87a861acbf7c5417de0b750cdee7c7c6ef1b

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