Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd1f0-18a2-7e5a-b2a8-b6dfba2a400f
Capture Method: Streaming
Captured At: Aug 5, 2026, 12:40 PM UTC

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

{
  "block_id": "019fd1f0-ffdb-745b-9ee1-072265008ae0",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T12:39:56Z",
    "hash": "fe64da96f22e53e7222ea2b489fefca2bade4536c736929513fffdf88e9d6a8e",
    "paging_token": "274064603346894848",
    "sequence": 63810638
  },
  "entropy_hash": "8f16aeed59dfa6c1a74286a03ce2898e62ca50a4601a805d9ed5b747ea45f097",
  "id": "019fd1f0-18a2-7e5a-b2a8-b6dfba2a400f",
  "inserted_at": "2026-08-05T12:40:00.930933Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "e43c9b48f074be779515b281bcf729b5e63d9f7ecd5fd6f6cbe0cd438e60c738",
  "signature": "sG3OEmyNfwJkIO01UwU3awSFhJettvazrFeWkweGt7ROvGJHNwYdhbdvMQYRX4h34gMNS9qsnPXyZbcI2UOcBA==",
  "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":"2026-08-05T12:39:56Z","hash":"fe64da96f22e53e7222ea2b489fefca2bade4536c736929513fffdf88e9d6a8e","paging_token":"274064603346894848","sequence":63810638}

Entropy Hash

8f16aeed59dfa6c1a74286a03ce2898e62ca50a4601a805d9ed5b747ea45f097

Observation Hash

e43c9b48f074be779515b281bcf729b5e63d9f7ecd5fd6f6cbe0cd438e60c738

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: 019fd1f0-18a2-7e5a-b2a8-b6dfba2a400f

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, 12:39 PM UTC

Ledger sequence 63810638

Truestamp Capture Time

Aug 5, 2026, 12:40 PM UTC

Real-time capture via streaming

Time Difference (Clock Delta)

5 seconds

Source timestamp was 5 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)

e43c9b48f074be779515b281bcf729b5e63d9f7ecd5fd6f6cbe0cd438e60c738

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

sG3OEmyNfwJkIO01UwU3awSFhJettvazrFeWkweGt7ROvGJHNwYdhbdvMQYRX4h34gMNS9qsnPXyZbcI2UOcBA==

Verify Signature Manually

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