Bitcoin Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID
019fd078-aebd-7ffa-97d5-52dabdb5787e
Capture Method
Streaming
Captured At
Aug 5, 2026, 5:49 AM 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":"000000000000000000017938c7e1913f5d9bc08d7d8ea671ddc9eeff0f88de51","height":961121,"time":1785909032}

cc73715f6ff72d53ce4ef97ff620f0f288e3a8a8c207ced50b30f1a545d98c27

fd4531a3df9984687e69c9cea8ff11d89ccf6dae6d96ac80c75dd62f279f2d44

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: 019fd078-aebd-7ffa-97d5-52dabdb5787e

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 5, 2026, 5:50 AM UTC

Timestamp embedded in Bitcoin block 961121

Aug 5, 2026, 5:49 AM UTC

Real-time capture via WebSocket

34 seconds

Source timestamp was 34 seconds 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)
fd4531a3df9984687e69c9cea8ff11d89ccf6dae6d96ac80c75dd62f279f2d44
Public Key (Base64 encoded)
1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=
Signature (Base64 encoded)
eZWVhiR4mkTDA0/MIZ3aP7mi8HDWWNG+y1oTUMhbZsTb1GXN+mKZXPyLN1RUVsJ/I9BxfJ1QRWpY+wfFO0jaBQ==
Verify Signature Manually

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