Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd3ea-9458-7310-8860-4a416d49f583
Capture Method: Streaming
Captured At: Aug 5, 2026, 9:53 PM UTC

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

{
  "block_id": "019fd3eb-4922-7ceb-990b-1c2a97bd07e3",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T21:53:09Z",
    "hash": "68505f7e9fda21117f11f27b0bd2a165a7b125f053e807ac511d8a45f7d9e2e0",
    "paging_token": "274089926474072064",
    "sequence": 63816534
  },
  "entropy_hash": "39f5463003b6a2d120b7e2dc4b6e91c9a66eef1e00c6c9ae879cf471bd63a2d0",
  "id": "019fd3ea-9458-7310-8860-4a416d49f583",
  "inserted_at": "2026-08-05T21:53:13.816228Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "817263575a15e9a957af61836bc3dc4da053e919a24708002c4459472136a186",
  "signature": "74RmHHjIgY5RK0SfRO7DEexbv3Mn69hBgWjMy9mHnmzlqk9xom8rzCJQ/P0OYbzbvR7X83oYsLQQ1qH7iSYSAQ==",
  "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":"2026-08-05T21:53:09Z","hash":"68505f7e9fda21117f11f27b0bd2a165a7b125f053e807ac511d8a45f7d9e2e0","paging_token":"274089926474072064","sequence":63816534}

Entropy Hash

39f5463003b6a2d120b7e2dc4b6e91c9a66eef1e00c6c9ae879cf471bd63a2d0

Observation Hash

817263575a15e9a957af61836bc3dc4da053e919a24708002c4459472136a186

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: 019fd3ea-9458-7310-8860-4a416d49f583

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, 9:53 PM UTC

Ledger sequence 63816534

Truestamp Capture Time

Aug 5, 2026, 9:53 PM UTC

Real-time capture via streaming

Time Difference (Clock Delta)

5 seconds

Source timestamp was 5 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)

817263575a15e9a957af61836bc3dc4da053e919a24708002c4459472136a186

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

74RmHHjIgY5RK0SfRO7DEexbv3Mn69hBgWjMy9mHnmzlqk9xom8rzCJQ/P0OYbzbvR7X83oYsLQQ1qH7iSYSAQ==

Verify Signature Manually

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