Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd2b5-3be7-72cb-b8e3-c48d9ee365e6
Capture Method: Streaming
Captured At: Aug 5, 2026, 4:15 PM UTC

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

{
  "block_id": "019fd2b5-d680-721d-a3d9-95f221a7384e",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T16:15:17Z",
    "hash": "6e455c88f8906534338f34201ad46016b9f084fd00e8a1faab0fcc61bfa0f97a",
    "paging_token": "274074460296839168",
    "sequence": 63812933
  },
  "entropy_hash": "05147788f18abecb90a43960fd92b9cbb9b7d4b07b294d9e7f1bec65b1e64e12",
  "id": "019fd2b5-3be7-72cb-b8e3-c48d9ee365e6",
  "inserted_at": "2026-08-05T16:15:20.551212Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "e032f3c43c17b4b914a5d6f8f7b8ad0a1c65be1426d46c1926a0d837cac7d2a8",
  "signature": "zMpTg/SKolpLnSdJoR05dRDtzpk6TBDRHIFguow6VrR6TwTacWP8mPaWJsxnxWBuf0XOvPIKQ1UwHTqj/T1YAg==",
  "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":"2026-08-05T16:15:17Z","hash":"6e455c88f8906534338f34201ad46016b9f084fd00e8a1faab0fcc61bfa0f97a","paging_token":"274074460296839168","sequence":63812933}

Entropy Hash

05147788f18abecb90a43960fd92b9cbb9b7d4b07b294d9e7f1bec65b1e64e12

Observation Hash

e032f3c43c17b4b914a5d6f8f7b8ad0a1c65be1426d46c1926a0d837cac7d2a8

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: 019fd2b5-3be7-72cb-b8e3-c48d9ee365e6

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, 4:15 PM UTC

Ledger sequence 63812933

Truestamp Capture Time

Aug 5, 2026, 4:15 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)

e032f3c43c17b4b914a5d6f8f7b8ad0a1c65be1426d46c1926a0d837cac7d2a8

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

zMpTg/SKolpLnSdJoR05dRDtzpk6TBDRHIFguow6VrR6TwTacWP8mPaWJsxnxWBuf0XOvPIKQ1UwHTqj/T1YAg==

Verify Signature Manually

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