Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd1dd-71e1-71eb-8eed-ac5b8a37678e
Capture Method: Streaming
Captured At: Aug 5, 2026, 12:19 PM UTC

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

{
  "block_id": "019fd1dd-c5ee-7b72-89ef-7d5ffaa2f243",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T12:19:35Z",
    "hash": "3977cd91cde7bf0cb5880d014f2b2989fa196d500577ad123cef206b25affb92",
    "paging_token": "274063667044024320",
    "sequence": 63810420
  },
  "entropy_hash": "0df20899cf6cc9fd8f6d900739b11a6b31d5dc1d6f33b4719e6ebc0c15963e7c",
  "id": "019fd1dd-71e1-71eb-8eed-ac5b8a37678e",
  "inserted_at": "2026-08-05T12:19:38.593156Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "c669e1ac8761da908eb0ffe5b7340726a7deae8138f6f0dce4dc8213dc87f2e5",
  "signature": "QNufIm4l2G3XVcKstvdiWgD+eYI2J5MwC6liD7Tf8a0zD4Y18i3mNMC1+ojCZnnxNeRbrsaReyly6BqXeYuxCw==",
  "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":"2026-08-05T12:19:35Z","hash":"3977cd91cde7bf0cb5880d014f2b2989fa196d500577ad123cef206b25affb92","paging_token":"274063667044024320","sequence":63810420}

Entropy Hash

0df20899cf6cc9fd8f6d900739b11a6b31d5dc1d6f33b4719e6ebc0c15963e7c

Observation Hash

c669e1ac8761da908eb0ffe5b7340726a7deae8138f6f0dce4dc8213dc87f2e5

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: 019fd1dd-71e1-71eb-8eed-ac5b8a37678e

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, 12:19 PM UTC

Ledger sequence 63810420

Truestamp Capture Time

Aug 5, 2026, 12:19 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)

c669e1ac8761da908eb0ffe5b7340726a7deae8138f6f0dce4dc8213dc87f2e5

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

QNufIm4l2G3XVcKstvdiWgD+eYI2J5MwC6liD7Tf8a0zD4Y18i3mNMC1+ojCZnnxNeRbrsaReyly6BqXeYuxCw==

Verify Signature Manually

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