Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fc8ab-854a-74b0-abc9-bb6392dce11d
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": "2026-08-03T17:28:28Z",
    "hash": "5b4d8cee767eb2695b29415a109d105b2e334adcc5b78966630fe01a5f605449",
    "paging_token": "273945826026323968",
    "sequence": 63782983
  },
  "entropy_hash": "5b63ba850e13b6368f01776b9ab00bd176535e5d1889f0201416db70747a814a",
  "id": "019fc8ab-854a-74b0-abc9-bb6392dce11d",
  "inserted_at": "2026-08-03T17:28:31.818330Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "18e7b21a00deddb38c6cb115b9915779aff33715b5e77ed147b4435ba4de5836",
  "signature": "sU0x/qOrlbEyuXmmbIpzPd2Hs7CEfWWbkxCtW3VVtWFJj8nPSIlhOvo+1cSJ8t43ofLyDPK68MCW3qHFzj8pDw==",
  "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":"2026-08-03T17:28:28Z","hash":"5b4d8cee767eb2695b29415a109d105b2e334adcc5b78966630fe01a5f605449","paging_token":"273945826026323968","sequence":63782983}

Entropy Hash

5b63ba850e13b6368f01776b9ab00bd176535e5d1889f0201416db70747a814a

Observation Hash

18e7b21a00deddb38c6cb115b9915779aff33715b5e77ed147b4435ba4de5836

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-854a-74b0-abc9-bb6392dce11d

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 63782983

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)

18e7b21a00deddb38c6cb115b9915779aff33715b5e77ed147b4435ba4de5836

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

sU0x/qOrlbEyuXmmbIpzPd2Hs7CEfWWbkxCtW3VVtWFJj8nPSIlhOvo+1cSJ8t43ofLyDPK68MCW3qHFzj8pDw==

Verify Signature Manually

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