Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd048-4213-71ab-aa5d-af08c5d4922a
Capture Method: Streaming
Captured At: Aug 5, 2026, 4:57 AM UTC

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

{
  "block_id": "019fd049-1c1d-7874-85e4-d9d98c84cd97",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T04:56:59Z",
    "hash": "aa7e7ced239c42cac8f93516f3898bc56bc4e8cdcaa434383ea95525a03dca13",
    "paging_token": "274043369028583424",
    "sequence": 63805694
  },
  "entropy_hash": "cbb01153bdd0f6f1bdd5d0af486543ee038d9e744742a9a2c209e7ab4cdd1692",
  "id": "019fd048-4213-71ab-aa5d-af08c5d4922a",
  "inserted_at": "2026-08-05T04:57:04.275139Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "e64a86236680ce1b48153ffcc7024f1c25ba993e72d31c88ba97fa2a2e9b05d8",
  "signature": "aCsOTRqqT0qIowZxyCgG0UoJiOvp4Wne6wBKrDkBF167IOzH7k5Z7OFi+kUIEX5K8wVAVtfLtVq2oAhlo7HSDw==",
  "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":"2026-08-05T04:56:59Z","hash":"aa7e7ced239c42cac8f93516f3898bc56bc4e8cdcaa434383ea95525a03dca13","paging_token":"274043369028583424","sequence":63805694}

Entropy Hash

cbb01153bdd0f6f1bdd5d0af486543ee038d9e744742a9a2c209e7ab4cdd1692

Observation Hash

e64a86236680ce1b48153ffcc7024f1c25ba993e72d31c88ba97fa2a2e9b05d8

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: 019fd048-4213-71ab-aa5d-af08c5d4922a

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, 4:56 AM UTC

Ledger sequence 63805694

Truestamp Capture Time

Aug 5, 2026, 4:57 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)

e64a86236680ce1b48153ffcc7024f1c25ba993e72d31c88ba97fa2a2e9b05d8

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

aCsOTRqqT0qIowZxyCgG0UoJiOvp4Wne6wBKrDkBF167IOzH7k5Z7OFi+kUIEX5K8wVAVtfLtVq2oAhlo7HSDw==

Verify Signature Manually

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