Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fc8b4-cc90-786e-9dd7-c037535198f4
Capture Method: Streaming
Captured At: Aug 3, 2026, 5:38 PM UTC

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

{
  "block_id": "019fc8b5-1b99-7275-9140-2eb565fd13ae",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-03T17:38:33Z",
    "hash": "9b1bc6a6569ecf1c471b9eeef76ff01b3c01260ebf9620f655072b673a06e09b",
    "paging_token": "273946285587824640",
    "sequence": 63783090
  },
  "entropy_hash": "9cb74026d9c04b906a54d0a86ea7530686d1c8eedca3e6576d38532d0fea04cb",
  "id": "019fc8b4-cc90-786e-9dd7-c037535198f4",
  "inserted_at": "2026-08-03T17:38:39.888567Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "9eb7bd3ab21d615fb531aa4a6a8a73e8b300b103d85b919a130974a51445876f",
  "signature": "TW1d5jAQhYGuvgeSyV6ykTcqLACTPObBTvtwhsM2JfILEjf/57x2w5WCQLPKtJcTuYNqJM0Nv2pydHKog1UqDA==",
  "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":"2026-08-03T17:38:33Z","hash":"9b1bc6a6569ecf1c471b9eeef76ff01b3c01260ebf9620f655072b673a06e09b","paging_token":"273946285587824640","sequence":63783090}

Entropy Hash

9cb74026d9c04b906a54d0a86ea7530686d1c8eedca3e6576d38532d0fea04cb

Observation Hash

9eb7bd3ab21d615fb531aa4a6a8a73e8b300b103d85b919a130974a51445876f

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: 019fc8b4-cc90-786e-9dd7-c037535198f4

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 3, 2026, 5:38 PM UTC

Ledger sequence 63783090

Truestamp Capture Time

Aug 3, 2026, 5:38 PM UTC

Real-time capture via streaming

Time Difference (Clock Delta)

7 seconds

Source timestamp was 7 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)

9eb7bd3ab21d615fb531aa4a6a8a73e8b300b103d85b919a130974a51445876f

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

TW1d5jAQhYGuvgeSyV6ykTcqLACTPObBTvtwhsM2JfILEjf/57x2w5WCQLPKtJcTuYNqJM0Nv2pydHKog1UqDA==

Verify Signature Manually

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