Entropy

Bitcoin Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fc947-1b28-7bb5-bd70-0e8d067126a9
Capture Method: Streaming
Captured At: Aug 3, 2026, 8:18 PM UTC

Everything Truestamp records about this entropy observation, as a single canonical JSON object.

{
  "block_id": "019fc947-9784-73df-a87d-440608b2acbb",
  "capture_method": "websocket",
  "entropy": {
    "hash": "000000000000000000014a67f39d98bb83fae5324cbde816e3b56a34c383d7fb",
    "height": 960907,
    "time": 1785788371
  },
  "entropy_hash": "a74f18f73b17a4ae0f2bb39e6b68683cc5de2af80129482b2ab931b5ab58abe0",
  "id": "019fc947-1b28-7bb5-bd70-0e8d067126a9",
  "inserted_at": "2026-08-03T20:18:28.264771Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "6d058d46440c9042e1974294769e80e473f8effe7f5ce5f8e0fde3ba2142d423",
  "signature": "2vDf773X05uo//SYOZQjyIVnRCFVc7Y4bHnnRouNUVveE1nINuNhpgSvjIjhLnE5VWYiXZ6BoTGnCmSZlhKPBw==",
  "signing_key_id": "3c19f776",
  "source": "entropy_bitcoin",
  "state": "committed"
}

Observation

Verifiable entropy captured from an external public source. The canonical JSON representation and its hash are used as input to the blockchain's Merkle tree.

Entropy Canonical Pretty

{"hash":"000000000000000000014a67f39d98bb83fae5324cbde816e3b56a34c383d7fb","height":960907,"time":1785788371}

Entropy Hash

a74f18f73b17a4ae0f2bb39e6b68683cc5de2af80129482b2ab931b5ab58abe0

Observation Hash

6d058d46440c9042e1974294769e80e473f8effe7f5ce5f8e0fde3ba2142d423

SHA-256 composite hash binding the entropy data, metadata, and signing key id. This is the value placed as a leaf in the block's Merkle tree, and the value covered by the signature below.

Observation ID: 019fc947-1b28-7bb5-bd70-0e8d067126a9

Time Delta

Bitcoin blocks include a timestamp that represents when miners claim the block was created. However, Bitcoin's consensus rules allow block timestamps to vary from actual wall clock time. This section shows the time difference between the block's timestamp and when Truestamp captured it.

Bitcoin Block Time

Aug 3, 2026, 8:19 PM UTC

Timestamp embedded in Bitcoin block 960907

Truestamp Capture Time

Aug 3, 2026, 8:18 PM UTC

Real-time capture via WebSocket

Time Difference (Clock Delta)

1 minute

Source timestamp was 1 minute ahead of capture time

Interpretation: A positive delta (block time ahead of capture) is normal and expected. Large deltas (several minutes or hours) may indicate clock synchronization issues with miners or intentional timestamp manipulation within consensus rules.

Signature Verification

Truestamp signed this observation's hash at capture. Verify the signature in any Ed25519 verifier using the observation hash, public key, and signature shown below. The active public key is also published at https://www.truestamp.com/.well-known/keyring.json.

Algorithm

Ed25519

Message (Observation Hash, Hex encoded)

6d058d46440c9042e1974294769e80e473f8effe7f5ce5f8e0fde3ba2142d423

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

2vDf773X05uo//SYOZQjyIVnRCFVc7Y4bHnnRouNUVveE1nINuNhpgSvjIjhLnE5VWYiXZ6BoTGnCmSZlhKPBw==

Verify Signature Manually

Opens an external Ed25519 verification tool with all fields pre-filled.