Bitcoin Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID
019fd06d-f3cb-702e-84f9-a0d74d291c49
Capture Method
Streaming
Captured At
Aug 5, 2026, 5:38 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":"000000000000000000004bf8a4ba31b8c339419ff9fb85695a794e7ef85028cc","height":961119,"time":1785908280}

3bbdeb210361eee87964f8726c043f763763c20f7fdd7a83f2b1e4ee42015e97

b197bf1e33b1603165bf7f165b44ffe13c2daaef9f658d4773400f3f4a6c413d

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: 019fd06d-f3cb-702e-84f9-a0d74d291c49

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, 5:38 AM UTC

Timestamp embedded in Bitcoin block 961119

Aug 5, 2026, 5:38 AM UTC

Real-time capture via WebSocket

15 seconds

Source timestamp was 15 seconds behind 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)
b197bf1e33b1603165bf7f165b44ffe13c2daaef9f658d4773400f3f4a6c413d
Public Key (Base64 encoded)
1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=
Signature (Base64 encoded)
m9Rm8S4ZzIB9qZ/4w8TvYTkpIMnInrwu0CZL5YJq7igh9sY6R+IaMfxJeGTjl0HWGcSOawW4I5sfEQkwfcz3BQ==
Verify Signature Manually

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