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
1892023
Beacon Timestamp
2026-08-06T09:12:00.000Z
Output Value
F7BB4F4C2256DE89EF8DE49E36A5B6BB152F51F08AF175B2DB20D4064A7112D0F5DD0F327EE8790390A8E0E5B54231F8702C97CD4783635F8F8DC4CF85C6F4C5
Capture Method
HTTP Polling
Captured At
Aug 6, 2026, 9:16 AM UTC
Entropy Data
{
  "pulse": {
    "chainIndex": 2,
    "outputValue": "F7BB4F4C2256DE89EF8DE49E36A5B6BB152F51F08AF175B2DB20D4064A7112D0F5DD0F327EE8790390A8E0E5B54231F8702C97CD4783635F8F8DC4CF85C6F4C5",
    "pulseIndex": 1892023,
    "timeStamp": "2026-08-06T09:12:00.000Z",
    "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 11 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 6, 2026 9:11 AM UTC
Truestamp-asserted ordering
Captured
Entropy
Aug 6, 2026 9:16 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 2026-08-06T09:17:00Z, inserted_at 2026-08-06T09:16:01Z, stellar_commit 2026-08-06T09:20:04Z
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
b2d8c696e920a55592c8f4141665619465ea2470d6792e81658b2637ac04069d
Epoch Merkle Proof
depth 3 · L/R/R
Show Merkle path
  1. L b9a4898283823ab8803955b9827b2d99a6b95971545241402436972722f1118a
  2. R ca55074ff6738ad707685400d33ea563be0e1d7614c0314becaeedf5207bd26f
  3. R b481c80a2d697de8279161aef8f3c533ddbc46a5e8d4daf4c5258b0b3a3c20b1
Epoch Merkle Root
7e158e1c60eeaf4605905d82629a43f6fbf34d01268fc5733db65c65ee50f2ba
On-Chain Transaction
Ledger: 63823872
On-chain time: 2026-08-06T09:20:04Z
MEMO_HASH: 7e158e1c60eeaf4605905d82629a43f6fbf34d01268fc5733db65c65ee50f2ba

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