Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fcfce-5b25-75e1-9f08-50c8a39ea96d
Capture Method: Streaming
Captured At: Aug 5, 2026, 2:43 AM UTC

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

{
  "block_id": "019fcfce-6e14-74d0-8990-443538408741",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T02:43:52Z",
    "hash": "af5a1e705d29a496a555adcab93a4d5f2ff4f06167a64016b224042b674cc9dc",
    "paging_token": "274037265880055808",
    "sequence": 63804273
  },
  "entropy_hash": "ac90ffe33f6cf0c74c8a72e5ef3a759de0ca01639f75e837387b4e31d819d6a2",
  "id": "019fcfce-5b25-75e1-9f08-50c8a39ea96d",
  "inserted_at": "2026-08-05T02:43:55.301402Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "11c4e540b7491ce5be4490c7747f189192844884b2e91b71690bd8a97062d00a",
  "signature": "I+jajjDBDyhAsRl1czCgHATA/Cq0MRwBlDubdG8eG+COY7bJBYL4hu+FHgMI+PSh833o+P0J3lEa8+QGi7MEAw==",
  "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":"2026-08-05T02:43:52Z","hash":"af5a1e705d29a496a555adcab93a4d5f2ff4f06167a64016b224042b674cc9dc","paging_token":"274037265880055808","sequence":63804273}

Entropy Hash

ac90ffe33f6cf0c74c8a72e5ef3a759de0ca01639f75e837387b4e31d819d6a2

Observation Hash

11c4e540b7491ce5be4490c7747f189192844884b2e91b71690bd8a97062d00a

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: 019fcfce-5b25-75e1-9f08-50c8a39ea96d

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, 2:43 AM UTC

Ledger sequence 63804273

Truestamp Capture Time

Aug 5, 2026, 2:43 AM 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)

11c4e540b7491ce5be4490c7747f189192844884b2e91b71690bd8a97062d00a

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

I+jajjDBDyhAsRl1czCgHATA/Cq0MRwBlDubdG8eG+COY7bJBYL4hu+FHgMI+PSh833o+P0J3lEa8+QGi7MEAw==

Verify Signature Manually

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