Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fc8aa-c78e-7edc-91f4-d2aae07fd3c9
Capture Method: Streaming
Captured At: Aug 3, 2026, 5:27 PM UTC

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

{
  "block_id": "019fc8ab-0966-7570-9bc2-2777162e9736",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-03T17:27:38Z",
    "hash": "0d1a0885c85bf636ff7487566080431488c6b79497b9c022f2793558b0160725",
    "paging_token": "273945787371618304",
    "sequence": 63782974
  },
  "entropy_hash": "23c1e94a80006bc59fbfff1f016620f878352f2617e6c89e35e3c9961b28c410",
  "id": "019fc8aa-c78e-7edc-91f4-d2aae07fd3c9",
  "inserted_at": "2026-08-03T17:27:43.246965Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "d73376efd5057153031bfd063a5f7a84b92072b93330484a057d37a2b5f27cf4",
  "signature": "z/hIuFR8zGjboYTU5XdKBJQR4KrxuxkRifLeih/S/n/UVbmPasmkuEb9l3nrOvF7XZbCYnc++/ScjSAIIu44Cw==",
  "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":"2026-08-03T17:27:38Z","hash":"0d1a0885c85bf636ff7487566080431488c6b79497b9c022f2793558b0160725","paging_token":"273945787371618304","sequence":63782974}

Entropy Hash

23c1e94a80006bc59fbfff1f016620f878352f2617e6c89e35e3c9961b28c410

Observation Hash

d73376efd5057153031bfd063a5f7a84b92072b93330484a057d37a2b5f27cf4

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: 019fc8aa-c78e-7edc-91f4-d2aae07fd3c9

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 3, 2026, 5:27 PM UTC

Ledger sequence 63782974

Truestamp Capture Time

Aug 3, 2026, 5:27 PM UTC

Real-time capture via streaming

Time Difference (Clock Delta)

6 seconds

Source timestamp was 6 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)

d73376efd5057153031bfd063a5f7a84b92072b93330484a057d37a2b5f27cf4

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

z/hIuFR8zGjboYTU5XdKBJQR4KrxuxkRifLeih/S/n/UVbmPasmkuEb9l3nrOvF7XZbCYnc++/ScjSAIIu44Cw==

Verify Signature Manually

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