Entropy Verification

All cryptographic checks passed within the Truestamp blockchain.

Return to Entropy

NIST Beacon

Raw entropy captured from the external source

Pulse Index
1891043
Beacon Timestamp
2026-08-05T16:52:00.000Z
Output Value
8F179B671FB1ADE851D2209D7E08CDFCC38494246B86DE1C57C7F7FEFF8BA4DDB6C2E112D36EFAE52B088C262B1983A2F2A6191E7BCF57E112722DAEA9AE20C9
Capture Method
HTTP Polling
Captured At
Aug 5, 2026, 4:56 PM UTC
Entropy Data
{
  "pulse": {
    "chainIndex": 2,
    "outputValue": "8F179B671FB1ADE851D2209D7E08CDFCC38494246B86DE1C57C7F7FEFF8BA4DDB6C2E112D36EFAE52B088C262B1983A2F2A6191E7BCF57E112722DAEA9AE20C9",
    "pulseIndex": 1891043,
    "timeStamp": "2026-08-05T16:52:00.000Z",
    "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 13 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 4:51 PM UTC
Truestamp-asserted ordering
Captured
Entropy
Aug 5, 2026 4:56 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 2026-08-05T16:57:00Z, inserted_at 2026-08-05T16:56:01Z, stellar_commit 2026-08-05T17:00:04Z
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
b8d27a04b96d6d3f52f218b04b48ab3e93b4dbd69ecafa32d6e6b879600d5419
Epoch Merkle Proof
depth 2 · L/R
Show Merkle path
  1. L 1cc7770da84deed9022e62e8755952e9d2646701e34d6049f517c134322b8c0a
  2. R 70e7fd9a36dd594c3117fb5d24d75c705ee76a24ba3e40cacd94c1504eacaff9
Epoch Merkle Root
97e4f3532e3d1cdc2c2da90ae5ddf109bc96335f6069690ab604c500a5a2d038
On-Chain Transaction
Ledger: 63813410
On-chain time: 2026-08-05T17:00:04Z
MEMO_HASH: 97e4f3532e3d1cdc2c2da90ae5ddf109bc96335f6069690ab604c500a5a2d038

Proof Chain

Interactive visualization of the cryptographic proof path from your data to public blockchains. Tap any node for details.

Drag to pan Use buttons to zoom Tap a node to inspect

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