Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd23d-c6f4-7ad0-adb0-857c3b1b78d9
Capture Method: Streaming
Captured At: Aug 5, 2026, 2:04 PM UTC

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

{
  "block_id": "019fd23d-e758-73ad-b320-63b938e9a1fe",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T14:04:45Z",
    "hash": "28f6600fdebdaa1932e95b12577f864543e9094fb56c432eeb9a32154714bd1d",
    "paging_token": "274068485997330432",
    "sequence": 63811542
  },
  "entropy_hash": "19476b24fcaa5ea360d45f740d3a7e80a82e4150b6040f31f6aa3167fadf5bab",
  "id": "019fd23d-c6f4-7ad0-adb0-857c3b1b78d9",
  "inserted_at": "2026-08-05T14:04:51.828715Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "37b59a2495dcc4f22812cb1b648187c424295f4f73e03a5cce1aa15d062efaa6",
  "signature": "YdKNRYVLUbcuI8kCzwfWHpWanfNwPOQ7/huctMY6Yz/GwP5qsBDfpJYg+MaPpB9t60CyCWPJPTaTSqUQlMlmBQ==",
  "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":"2026-08-05T14:04:45Z","hash":"28f6600fdebdaa1932e95b12577f864543e9094fb56c432eeb9a32154714bd1d","paging_token":"274068485997330432","sequence":63811542}

Entropy Hash

19476b24fcaa5ea360d45f740d3a7e80a82e4150b6040f31f6aa3167fadf5bab

Observation Hash

37b59a2495dcc4f22812cb1b648187c424295f4f73e03a5cce1aa15d062efaa6

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: 019fd23d-c6f4-7ad0-adb0-857c3b1b78d9

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, 2:04 PM UTC

Ledger sequence 63811542

Truestamp Capture Time

Aug 5, 2026, 2:04 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)

37b59a2495dcc4f22812cb1b648187c424295f4f73e03a5cce1aa15d062efaa6

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

YdKNRYVLUbcuI8kCzwfWHpWanfNwPOQ7/huctMY6Yz/GwP5qsBDfpJYg+MaPpB9t60CyCWPJPTaTSqUQlMlmBQ==

Verify Signature Manually

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