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
1890275
Beacon Timestamp
2026-08-05T04:04:00.000Z
Output Value
9A2E5DC18FDFCE934F4CF7E542219C3FBE819D746F5CAFABE9ECAC5998D47508D04CA4C9C8E7CD00241D5F7F5BF4D8DBBD0CB8757D9687EA7FFE0E0CF4092D5B
Capture Method
HTTP Polling
Captured At
Aug 5, 2026, 4:08 AM UTC
Entropy Data
{
  "pulse": {
    "chainIndex": 2,
    "outputValue": "9A2E5DC18FDFCE934F4CF7E542219C3FBE819D746F5CAFABE9ECAC5998D47508D04CA4C9C8E7CD00241D5F7F5BF4D8DBBD0CB8757D9687EA7FFE0E0CF4092D5B",
    "pulseIndex": 1890275,
    "timeStamp": "2026-08-05T04:04:00.000Z",
    "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 2 m 14 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 4:03 AM UTC
Truestamp-asserted ordering
Captured
Entropy
Aug 5, 2026 4:08 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 2026-08-05T04:09:00Z, inserted_at 2026-08-05T04:08:02Z, stellar_commit 2026-08-05T04:10:04Z
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
1327717cc9b4c88678184e14f80d7d4769398d517768e778d9018b76a0d341c9
Epoch Merkle Proof
depth 3 · L/L/R
Show Merkle path
  1. L 9cb92789f9f2724077b15e8fdc290bb1b5e90f4e4a953e722e0c01e326efc9e3
  2. L 6496444e345b0eee6d15a29f7b592a55a60ad0e9604ff03d7ab75c0d49c62a7d
  3. R d5484d6f8d961ae16fc122df849f5f2ea356a440c35c4936df7cfd8dc0c56651
Epoch Merkle Root
544fb8d5b15d1d31bc817abf625303e0bfc878fdb751a71edc42142deb333fa9
On-Chain Transaction
Ledger: 63805193
On-chain time: 2026-08-05T04:10:04Z
MEMO_HASH: 544fb8d5b15d1d31bc817abf625303e0bfc878fdb751a71edc42142deb333fa9

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