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
1891031
Beacon Timestamp
2026-08-05T16:40:00.000Z
Output Value
99B87487006A575477433C3A4525F2B703C07BC17C0708A4F5946007703D2181505CBD3959EEFADB6834C7D744D44D6F29318D33FA24F2C955E7B54F00D717A6
Capture Method
HTTP Polling
Captured At
Aug 5, 2026, 4:43 PM UTC
Entropy Data
{
  "pulse": {
    "chainIndex": 2,
    "outputValue": "99B87487006A575477433C3A4525F2B703C07BC17C0708A4F5946007703D2181505CBD3959EEFADB6834C7D744D44D6F29318D33FA24F2C955E7B54F00D717A6",
    "pulseIndex": 1891031,
    "timeStamp": "2026-08-05T16:40:00.000Z",
    "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 4:39 PM UTC
Truestamp-asserted ordering
Captured
Entropy
Aug 5, 2026 4:43 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 2026-08-05T16:44:00Z, inserted_at 2026-08-05T16:43:55Z, stellar_commit 2026-08-05T16:45:07Z
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
15c2a4a1d6e5b09326071146cff58517755916d6f0220844ceb621abe0f64b7b
Epoch Merkle Proof
depth 3 · L/L/R
Show Merkle path
  1. L d9530f4186edfde7680ae2ab45d6ee75f2e4d30a00851816df828edc35a1e017
  2. L 98bc98a0e40a401427001a00a5cef123575d80421b421ac8d7a9b421d8cead8b
  3. R f5c879cb09b0614949e3da8d45fe0209c4c7abcbb4b63cf675c4131ae5291150
Epoch Merkle Root
3483a0f10b054fc57c397270ae8d4c287804817d29d6cec74e18f0e4a20774b9
On-Chain Transaction
Ledger: 63813251
On-chain time: 2026-08-05T16:45:07Z
MEMO_HASH: 3483a0f10b054fc57c397270ae8d4c287804817d29d6cec74e18f0e4a20774b9

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