Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd0c0-9e24-7cd3-99f4-9c3a6fa8fe60
Capture Method: Streaming
Captured At: Aug 5, 2026, 7:08 AM UTC

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

{
  "block_id": "019fd0c1-0b3e-7314-bf2f-c2a145db3259",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T07:08:22Z",
    "hash": "8b8f65386906fdb9f878057c19484fb58ed6303c7c67a8eafe12e0d8a5cd86df",
    "paging_token": "274049390572732416",
    "sequence": 63807096
  },
  "entropy_hash": "5352fa5aa88da26e3f463dcda90cdc5cb05179bd35268a262ebd8423a9606510",
  "id": "019fd0c0-9e24-7cd3-99f4-9c3a6fa8fe60",
  "inserted_at": "2026-08-05T07:08:32.164837Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "d5fd4fc11eae22ae5813951c28ca4ede0bb87a827afe8f2ce0bf8f097017951c",
  "signature": "sBqwxejptV9Xu1eJaUq+P2mqmLl9qWZ2kSgujph4YJjDr7ZOWmfITlY6op9Yx4kuY2ctrQHwkBzD2CRb8btjDA==",
  "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":"2026-08-05T07:08:22Z","hash":"8b8f65386906fdb9f878057c19484fb58ed6303c7c67a8eafe12e0d8a5cd86df","paging_token":"274049390572732416","sequence":63807096}

Entropy Hash

5352fa5aa88da26e3f463dcda90cdc5cb05179bd35268a262ebd8423a9606510

Observation Hash

d5fd4fc11eae22ae5813951c28ca4ede0bb87a827afe8f2ce0bf8f097017951c

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: 019fd0c0-9e24-7cd3-99f4-9c3a6fa8fe60

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, 7:08 AM UTC

Ledger sequence 63807096

Truestamp Capture Time

Aug 5, 2026, 7:08 AM UTC

Real-time capture via streaming

Time Difference (Clock Delta)

11 seconds

Source timestamp was 11 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)

d5fd4fc11eae22ae5813951c28ca4ede0bb87a827afe8f2ce0bf8f097017951c

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

sBqwxejptV9Xu1eJaUq+P2mqmLl9qWZ2kSgujph4YJjDr7ZOWmfITlY6op9Yx4kuY2ctrQHwkBzD2CRb8btjDA==

Verify Signature Manually

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