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
1890734
Beacon Timestamp
2026-08-05T11:43:00.000Z
Output Value
F402AFBDB26BA00932E57DF98E5BE2B0FECFF1DD57B2D1C35735E3199235E29392F79A49C4690290B8DB6B3EE68731A732AD047B87CA4DBB6F3848D4392A847C
Capture Method
HTTP Polling
Captured At
Aug 5, 2026, 11:47 AM UTC
Entropy Data
{
  "pulse": {
    "chainIndex": 2,
    "outputValue": "F402AFBDB26BA00932E57DF98E5BE2B0FECFF1DD57B2D1C35735E3199235E29392F79A49C4690290B8DB6B3EE68731A732AD047B87CA4DBB6F3848D4392A847C",
    "pulseIndex": 1890734,
    "timeStamp": "2026-08-05T11:43:00.000Z",
    "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 7 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 11:42 AM UTC
Truestamp-asserted ordering
Captured
Entropy
Aug 5, 2026 11:47 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 2026-08-05T11:48:00Z, inserted_at 2026-08-05T11:47:07Z, stellar_commit 2026-08-05T11:50:02Z
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
d21a7c77a196a00641ae4abf0657b93d10abafe26c779342657499f76a9d3f10
Epoch Merkle Proof
depth 2 · R/L
Show Merkle path
  1. R a969c3868a5f41040c531ef7c3427f4316744e4474098bac5582e07030b63c2c
  2. L db8c96ffab9805228d930a5e4ac26f3d9bdc2834123264d0d163609cdcfffc8c
Epoch Merkle Root
f63e50e361608df2cd0ffdd5f98da2b28c1372d2da463e2937c909ffcd3e9c81
On-Chain Transaction
Ledger: 63810104
On-chain time: 2026-08-05T11:50:02Z
MEMO_HASH: f63e50e361608df2cd0ffdd5f98da2b28c1372d2da463e2937c909ffcd3e9c81

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