Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd278-029e-77dd-b374-08cb294b5178
Capture Method: Streaming
Captured At: Aug 5, 2026, 3:08 PM UTC

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

{
  "block_id": "019fd278-7f64-7807-9ab6-8a524c5e5173",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T15:08:22Z",
    "hash": "15ef54c2f918adf81c26892d3cfd3883a1f6d4034bf0bbb995b9892251e55eac",
    "paging_token": "274071397985157120",
    "sequence": 63812220
  },
  "entropy_hash": "87663af793a502a3e368dc083ca7666232dd109404686acf74685f31e28c59bc",
  "id": "019fd278-029e-77dd-b374-08cb294b5178",
  "inserted_at": "2026-08-05T15:08:28.190526Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "e85d376a14ecb2d036077e816b73459f1462fdafd7a748cca9e515c5979ec455",
  "signature": "CuvRPPZYV/r2EYCgIWRQWcgKtIfXciogfXq60puRGziOdaJ4IVSoSvg3gL3BRKuJUd0TvmAUgeWpBj4lRW1iBg==",
  "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":"2026-08-05T15:08:22Z","hash":"15ef54c2f918adf81c26892d3cfd3883a1f6d4034bf0bbb995b9892251e55eac","paging_token":"274071397985157120","sequence":63812220}

Entropy Hash

87663af793a502a3e368dc083ca7666232dd109404686acf74685f31e28c59bc

Observation Hash

e85d376a14ecb2d036077e816b73459f1462fdafd7a748cca9e515c5979ec455

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: 019fd278-029e-77dd-b374-08cb294b5178

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, 3:08 PM UTC

Ledger sequence 63812220

Truestamp Capture Time

Aug 5, 2026, 3:08 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)

e85d376a14ecb2d036077e816b73459f1462fdafd7a748cca9e515c5979ec455

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

CuvRPPZYV/r2EYCgIWRQWcgKtIfXciogfXq60puRGziOdaJ4IVSoSvg3gL3BRKuJUd0TvmAUgeWpBj4lRW1iBg==

Verify Signature Manually

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