Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fc8ab-9d4d-70b5-9b67-1daf47627058
Capture Method: Streaming
Captured At: Aug 3, 2026, 5:28 PM UTC

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

{
  "block_id": "019fc8ab-f3c8-70eb-ac13-2ea63897d364",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-03T17:28:34Z",
    "hash": "00a8f17c2bd9ce46ab5d840092203d7ed8fdf31d726c386b4d494a0714dda80c",
    "paging_token": "273945830321291264",
    "sequence": 63782984
  },
  "entropy_hash": "f2f4417ce58defc8367465ad3e69b16e3bd9f3b8f0552d6d0bccc0b2903b22b0",
  "id": "019fc8ab-9d4d-70b5-9b67-1daf47627058",
  "inserted_at": "2026-08-03T17:28:37.965082Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "160cf3b4a10871f8f74c351dddb914a66a18a35a2ca2611ddd619f25f3bf896b",
  "signature": "YfRog/NejPMjccXT4nALM0PrOjNV6ykvmqjJHLXBXUmITvWTeZgMCsK9lzv/Qyjr5N0bSZ9HWFUJvfZV3ch0Bw==",
  "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":"2026-08-03T17:28:34Z","hash":"00a8f17c2bd9ce46ab5d840092203d7ed8fdf31d726c386b4d494a0714dda80c","paging_token":"273945830321291264","sequence":63782984}

Entropy Hash

f2f4417ce58defc8367465ad3e69b16e3bd9f3b8f0552d6d0bccc0b2903b22b0

Observation Hash

160cf3b4a10871f8f74c351dddb914a66a18a35a2ca2611ddd619f25f3bf896b

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: 019fc8ab-9d4d-70b5-9b67-1daf47627058

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 3, 2026, 5:28 PM UTC

Ledger sequence 63782984

Truestamp Capture Time

Aug 3, 2026, 5:28 PM UTC

Real-time capture via streaming

Time Difference (Clock Delta)

4 seconds

Source timestamp was 4 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)

160cf3b4a10871f8f74c351dddb914a66a18a35a2ca2611ddd619f25f3bf896b

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

YfRog/NejPMjccXT4nALM0PrOjNV6ykvmqjJHLXBXUmITvWTeZgMCsK9lzv/Qyjr5N0bSZ9HWFUJvfZV3ch0Bw==

Verify Signature Manually

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