Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd3e6-fdd8-7f32-b617-f70669b6b6c4
Capture Method: Streaming
Captured At: Aug 5, 2026, 9:49 PM UTC

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

{
  "block_id": "019fd3e7-9fd0-7f00-8299-5fbb5a968494",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T21:49:12Z",
    "hash": "51872b883da6a21fc249b2489ad5dcef5fe495cd625117f89476c5c68ee59201",
    "paging_token": "274089746085445632",
    "sequence": 63816492
  },
  "entropy_hash": "7c2fbe112e3a717a82159ac53e1425417e208075d517223b5acef3278bff1e24",
  "id": "019fd3e6-fdd8-7f32-b617-f70669b6b6c4",
  "inserted_at": "2026-08-05T21:49:18.680985Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "2876b13a0e80597e167ceda95e4a0543b593329067fcd241a8a44db8a2e0c6c8",
  "signature": "XIgrgvrAowYN0Vkoa1VjiSYaY9jTG7ktheC171PqOEP0UKvRVHrfD8wFSwDYx5vGyTRTch1JG9yBC2H3wTd2CQ==",
  "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":"2026-08-05T21:49:12Z","hash":"51872b883da6a21fc249b2489ad5dcef5fe495cd625117f89476c5c68ee59201","paging_token":"274089746085445632","sequence":63816492}

Entropy Hash

7c2fbe112e3a717a82159ac53e1425417e208075d517223b5acef3278bff1e24

Observation Hash

2876b13a0e80597e167ceda95e4a0543b593329067fcd241a8a44db8a2e0c6c8

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: 019fd3e6-fdd8-7f32-b617-f70669b6b6c4

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, 9:49 PM UTC

Ledger sequence 63816492

Truestamp Capture Time

Aug 5, 2026, 9:49 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)

2876b13a0e80597e167ceda95e4a0543b593329067fcd241a8a44db8a2e0c6c8

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

XIgrgvrAowYN0Vkoa1VjiSYaY9jTG7ktheC171PqOEP0UKvRVHrfD8wFSwDYx5vGyTRTch1JG9yBC2H3wTd2CQ==

Verify Signature Manually

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