Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd0ed-c46c-7f1c-8efe-6d9a9dc6c30a
Capture Method: Streaming
Captured At: Aug 5, 2026, 7:57 AM UTC

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

{
  "block_id": "019fd0ed-e7b3-7383-9ffd-da44f4851564",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T07:57:46Z",
    "hash": "5c2311a5e8c5e894b6c6a10eeea6854ac3da5532031361dff3e13d0fcb88858b",
    "paging_token": "274051662610432000",
    "sequence": 63807625
  },
  "entropy_hash": "29dfac02885bb9f93d96d2ca4506c693c3e1df9f4d350facc4a43ec2dfa4b411",
  "id": "019fd0ed-c46c-7f1c-8efe-6d9a9dc6c30a",
  "inserted_at": "2026-08-05T07:57:51.084983Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "02a21546054e159998801f2d3aa742555d3d29e835266c5017942a73a8528a61",
  "signature": "Nvc7wNvdjt/eIOfoRDdXOG5ogEpF8mevZHfn1sCpqXJO93mwWOBDwXJrI1e+KRqkbPesWLQYAKKRdEYbF7cdCQ==",
  "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":"2026-08-05T07:57:46Z","hash":"5c2311a5e8c5e894b6c6a10eeea6854ac3da5532031361dff3e13d0fcb88858b","paging_token":"274051662610432000","sequence":63807625}

Entropy Hash

29dfac02885bb9f93d96d2ca4506c693c3e1df9f4d350facc4a43ec2dfa4b411

Observation Hash

02a21546054e159998801f2d3aa742555d3d29e835266c5017942a73a8528a61

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: 019fd0ed-c46c-7f1c-8efe-6d9a9dc6c30a

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, 7:57 AM UTC

Ledger sequence 63807625

Truestamp Capture Time

Aug 5, 2026, 7:57 AM UTC

Real-time capture via streaming

Time Difference (Clock Delta)

6 seconds

Source timestamp was 6 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)

02a21546054e159998801f2d3aa742555d3d29e835266c5017942a73a8528a61

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

Nvc7wNvdjt/eIOfoRDdXOG5ogEpF8mevZHfn1sCpqXJO93mwWOBDwXJrI1e+KRqkbPesWLQYAKKRdEYbF7cdCQ==

Verify Signature Manually

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