Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd40a-6e02-7e1f-a034-4529d3a3d51a
Capture Method: Streaming
Captured At: Aug 5, 2026, 10:28 PM UTC

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

{
  "block_id": "019fd40b-5447-70ba-a890-efc4a3f20837",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T22:27:57Z",
    "hash": "408cfb69ae107178467cf30befcdfef0f7825d53d6022317537bfd277d687eee",
    "paging_token": "274091524201906176",
    "sequence": 63816906
  },
  "entropy_hash": "88380e6727520e65c8da184b5f1176f04891adfd8f68f5c2086e9068ce5c9126",
  "id": "019fd40a-6e02-7e1f-a034-4529d3a3d51a",
  "inserted_at": "2026-08-05T22:28:01.154923Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "81cdf22438c8c99a66fcd3478eb27200ee0984fdff0ab03538850d0750cb621c",
  "signature": "nS72ak/WEfMkImUudQ5DsDRTTYg23vFC6kAXsRUnJOdLz7G4g+VHvA5dWp3xcS3mRS7gpdWzL7g7PeHFz2KWBw==",
  "signing_key_id": "3c19f776",
  "source": "entropy_stellar",
  "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

{"closed_at":"2026-08-05T22:27:57Z","hash":"408cfb69ae107178467cf30befcdfef0f7825d53d6022317537bfd277d687eee","paging_token":"274091524201906176","sequence":63816906}

Entropy Hash

88380e6727520e65c8da184b5f1176f04891adfd8f68f5c2086e9068ce5c9126

Observation Hash

81cdf22438c8c99a66fcd3478eb27200ee0984fdff0ab03538850d0750cb621c

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: 019fd40a-6e02-7e1f-a034-4529d3a3d51a

Time Delta

Stellar ledgers include a close time representing when the ledger was finalized by network consensus. Ledgers close approximately every 5 seconds under normal operation.

Stellar Ledger Close Time

Aug 5, 2026, 10:27 PM UTC

Ledger sequence 63816906

Truestamp Capture Time

Aug 5, 2026, 10:28 PM UTC

Real-time capture via streaming

Time Difference (Clock Delta)

5 seconds

Source timestamp was 5 seconds behind capture time

Interpretation: A small delta (under 30 seconds) indicates normal Stellar network operation with ledgers closing approximately every 5 seconds.

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)

81cdf22438c8c99a66fcd3478eb27200ee0984fdff0ab03538850d0750cb621c

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

nS72ak/WEfMkImUudQ5DsDRTTYg23vFC6kAXsRUnJOdLz7G4g+VHvA5dWp3xcS3mRS7gpdWzL7g7PeHFz2KWBw==

Verify Signature Manually

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