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
1891174
Beacon Timestamp
2026-08-05T19:03:00.000Z
Output Value
7F7A8FA9532DD06FED4762D5E1A2541737ECAE2EE80A5F0A23F75D8F32CF430D092BCD4BEF74C52F4460DC096843F0134753A6DF2B2F158D4AF2386F802AC889
Capture Method
HTTP Polling
Captured At
Aug 5, 2026, 7:06 PM UTC
Entropy Data
{
  "pulse": {
    "chainIndex": 2,
    "outputValue": "7F7A8FA9532DD06FED4762D5E1A2541737ECAE2EE80A5F0A23F75D8F32CF430D092BCD4BEF74C52F4460DC096843F0134753A6DF2B2F158D4AF2386F802AC889",
    "pulseIndex": 1891174,
    "timeStamp": "2026-08-05T19:03:00.000Z",
    "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 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 7:02 PM UTC
Truestamp-asserted ordering
Captured
Entropy
Aug 5, 2026 7:06 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 2026-08-05T19:07:00Z, inserted_at 2026-08-05T19:06:59Z, stellar_commit 2026-08-05T19:10:02Z
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
950ee15c776152e5b3ea327e70706cfd24e77ce52846648c790e54da5ca0cd67
Epoch Merkle Proof
depth 3 · L/R/R
Show Merkle path
  1. L 5e1568afc7a8cf9db1f14e24dff7f14318eccb0cc52376f33037490f0dfef5b2
  2. R 3f264d3bc829655ad08f45ff19853ac36d1ace52b157be058e8da31676fcd52f
  3. R b104da9a6beecac2ad1a7d10eb93035dafc88cc01ea2720c502423529f21e351
Epoch Merkle Root
b216621de05e7780c040c9d6c131117edc048fa1621ccc83b151ba5a9a7c849e
On-Chain Transaction
Ledger: 63814790
On-chain time: 2026-08-05T19:10:02Z
MEMO_HASH: b216621de05e7780c040c9d6c131117edc048fa1621ccc83b151ba5a9a7c849e

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