Entropy Verification

All cryptographic checks passed within the Truestamp blockchain.

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Stellar Ledger

Raw entropy captured from the external source

Ledger Sequence
63815209
Closed At
2026-08-05T19:49:19Z
Ledger Hash
a9ff0ba93d02db30a425a9b09b9656f3f0be5f0a6a58439ce7e2e98f2c3adda6
Capture Method
Server-Sent Events
Captured At
Aug 5, 2026, 7:49 PM UTC
Entropy Data
{
  "closed_at": "2026-08-05T19:49:19Z",
  "hash": "a9ff0ba93d02db30a425a9b09b9656f3f0be5f0a6a58439ce7e2e98f2c3adda6",
  "paging_token": "274084235642404864",
  "sequence": 63815209
}

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 1 m 8 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 7:45 PM UTC
Truestamp-asserted ordering
Captured
Entropy
Aug 5, 2026 7:49 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 2026-08-05T19:50:00Z, inserted_at 2026-08-05T19:49:24Z, stellar_commit 2026-08-05T19:50:04Z
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
a4a598a80b4dc10984ef7fa497c5d832b19394b7da8c909a404ac771cd2f7d99
Epoch Merkle Proof
depth 3 · R/R/L
Show Merkle path
  1. R d37300dc2c6e038a83ee197ca0e181a77f6875afd9f537d31ca4995876481319
  2. R 3af5290a630909c56594370a5d53f1fad8231179978bedb08410b348475c0176
  3. L 4655c63ad5cb16d83e3fe6976b79f591613efd629cbdebc3cded3ac44ba35f74
Epoch Merkle Root
b007566645009a70ca60c4b2ee212876696ef2a139e53e6ac5f9a4ce43839303
On-Chain Transaction
Ledger: 63815217
On-chain time: 2026-08-05T19:50:04Z
MEMO_HASH: b007566645009a70ca60c4b2ee212876696ef2a139e53e6ac5f9a4ce43839303

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