Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fc921-8a14-7526-b806-68e7870b4e93
Capture Method: Streaming
Captured At: Aug 3, 2026, 7:37 PM UTC

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

{
  "block_id": "019fc922-0e60-75e2-aeeb-04c4cb962353",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-03T19:37:23Z",
    "hash": "820712248c492ce78017f4ee30e5f3fc5781f3bb48348af9005bcd53644abd07",
    "paging_token": "273951727311388672",
    "sequence": 63784357
  },
  "entropy_hash": "bc200b3c75f6e6d1539e4dc6544701c2a73135bd66deb917473f0e000fece9ff",
  "id": "019fc921-8a14-7526-b806-68e7870b4e93",
  "inserted_at": "2026-08-03T19:37:26.292361Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "288c4f1b5966a5b9994b9c628c5d5e13dbb2da3772f8405d3d3bba1124b66390",
  "signature": "8jq5ErWX3dTsSpOeqF2H9PR26UzerkhEoIONAlO7s2JEJHEK1E+2EKtapZCQIfgS0+hRjM2lNWphTSgSgCcrDQ==",
  "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":"2026-08-03T19:37:23Z","hash":"820712248c492ce78017f4ee30e5f3fc5781f3bb48348af9005bcd53644abd07","paging_token":"273951727311388672","sequence":63784357}

Entropy Hash

bc200b3c75f6e6d1539e4dc6544701c2a73135bd66deb917473f0e000fece9ff

Observation Hash

288c4f1b5966a5b9994b9c628c5d5e13dbb2da3772f8405d3d3bba1124b66390

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: 019fc921-8a14-7526-b806-68e7870b4e93

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, 7:37 PM UTC

Ledger sequence 63784357

Truestamp Capture Time

Aug 3, 2026, 7:37 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)

288c4f1b5966a5b9994b9c628c5d5e13dbb2da3772f8405d3d3bba1124b66390

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

8jq5ErWX3dTsSpOeqF2H9PR26UzerkhEoIONAlO7s2JEJHEK1E+2EKtapZCQIfgS0+hRjM2lNWphTSgSgCcrDQ==

Verify Signature Manually

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