Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fcf49-36df-7d57-a679-45933261414d
Capture Method: Streaming
Captured At: Aug 5, 2026, 12:18 AM UTC

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

{
  "block_id": "019fcf49-ad85-7438-ad72-bb0e5c43daae",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T00:18:25Z",
    "hash": "9a28139d8ca00b4a96fac3a8f9084ea6cffcc2b5dce6415423e812226fcc52b2",
    "paging_token": "274030600090812416",
    "sequence": 63802721
  },
  "entropy_hash": "852797cd7bfca926ed893fcc69600eacb4edb72c324d2c4115e97f3a6580ce12",
  "id": "019fcf49-36df-7d57-a679-45933261414d",
  "inserted_at": "2026-08-05T00:18:29.727871Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "b3fbf3b8e10a19733787b1b666f9a001ab6443ee7029c4e5a908f3d0957a6a2d",
  "signature": "JDMg4RwrpD6WO5vuzR/8FX2IWTZiinKuGrtbXf5CQlAfQ3jstJmCBspAPzKnpizdFFbGEHbxtYJCVXyYw/3VDg==",
  "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":"2026-08-05T00:18:25Z","hash":"9a28139d8ca00b4a96fac3a8f9084ea6cffcc2b5dce6415423e812226fcc52b2","paging_token":"274030600090812416","sequence":63802721}

Entropy Hash

852797cd7bfca926ed893fcc69600eacb4edb72c324d2c4115e97f3a6580ce12

Observation Hash

b3fbf3b8e10a19733787b1b666f9a001ab6443ee7029c4e5a908f3d0957a6a2d

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: 019fcf49-36df-7d57-a679-45933261414d

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, 12:18 AM UTC

Ledger sequence 63802721

Truestamp Capture Time

Aug 5, 2026, 12:18 AM 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)

b3fbf3b8e10a19733787b1b666f9a001ab6443ee7029c4e5a908f3d0957a6a2d

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

JDMg4RwrpD6WO5vuzR/8FX2IWTZiinKuGrtbXf5CQlAfQ3jstJmCBspAPzKnpizdFFbGEHbxtYJCVXyYw/3VDg==

Verify Signature Manually

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