Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd0fa-04d2-757e-a50b-7dffc4bf07f4
Capture Method: Streaming
Captured At: Aug 5, 2026, 8:11 AM UTC

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

{
  "block_id": "019fd0fa-b8ef-73b3-8455-c1cbe7051066",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T08:11:09Z",
    "hash": "fb94d1c29f8f9778129d2ebfe595a8359617cbb0fd68e31b26a85986fdd489ca",
    "paging_token": "274052276790755328",
    "sequence": 63807768
  },
  "entropy_hash": "c66aa1dca27ed7f60b883473e1bb7651f9dd2097ffde575ddc6d357ce468f021",
  "id": "019fd0fa-04d2-757e-a50b-7dffc4bf07f4",
  "inserted_at": "2026-08-05T08:11:14.002393Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "1a8096fa5b71499193c7f748aa805d5f8a8a73e07074468a0b36da5096f0d9d7",
  "signature": "r/c+ZzpTqY6ttjRb07HJDQ7PBQiIsw0H+uchhht4RGF3uaOO31U6DK5nNekLYB6VMDk6Gi3Rkv3zJtlPIrl+DA==",
  "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":"2026-08-05T08:11:09Z","hash":"fb94d1c29f8f9778129d2ebfe595a8359617cbb0fd68e31b26a85986fdd489ca","paging_token":"274052276790755328","sequence":63807768}

Entropy Hash

c66aa1dca27ed7f60b883473e1bb7651f9dd2097ffde575ddc6d357ce468f021

Observation Hash

1a8096fa5b71499193c7f748aa805d5f8a8a73e07074468a0b36da5096f0d9d7

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: 019fd0fa-04d2-757e-a50b-7dffc4bf07f4

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, 8:11 AM UTC

Ledger sequence 63807768

Truestamp Capture Time

Aug 5, 2026, 8:11 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)

1a8096fa5b71499193c7f748aa805d5f8a8a73e07074468a0b36da5096f0d9d7

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

r/c+ZzpTqY6ttjRb07HJDQ7PBQiIsw0H+uchhht4RGF3uaOO31U6DK5nNekLYB6VMDk6Gi3Rkv3zJtlPIrl+DA==

Verify Signature Manually

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