Bitcoin Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID
019fc938-c196-76d3-a2b0-30bd7378d7a3
Capture Method
Streaming
Captured At
Aug 3, 2026, 8:02 PM UTC
Verify Proof

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.

{"hash":"00000000000000000001c8e794605a3aea5c1f4d176c7d235ae4b371acf90271","height":960904,"time":1785787671}

843abd261d25f3534371af3d3cb0d8ff69c0eb4a0bf8951e125ac2e531d84943

956ca92f6c6eb386475ff4f50c035727ef0b7d1822b2fad176957a218016bf26

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: 019fc938-c196-76d3-a2b0-30bd7378d7a3

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.

Aug 3, 2026, 8:07 PM UTC

Timestamp embedded in Bitcoin block 960904

Aug 3, 2026, 8:02 PM UTC

Real-time capture via WebSocket

5 minutes

Source timestamp was 5 minutes 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)
956ca92f6c6eb386475ff4f50c035727ef0b7d1822b2fad176957a218016bf26
Public Key (Base64 encoded)
1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=
Signature (Base64 encoded)
JI+Sed0poqHaJOpl17pzzFOJA9EqQMQR9LbDLRDVZ6ODABFxORgitFu9pSufVxx4/a3be6AA/G62dm8J8aCRCw==
Verify Signature Manually

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