Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd26a-dde0-72f9-aff0-cfe178fa23c2
Capture Method: Streaming
Captured At: Aug 5, 2026, 2:54 PM UTC

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

{
  "block_id": "019fd26b-ae0a-749d-a679-b536d8273cdb",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T14:54:03Z",
    "hash": "4fc5992b3ef574662a85902c58f0e78043886a5d27c51cab86ab5a79c79fa72a",
    "paging_token": "274070745150128128",
    "sequence": 63812068
  },
  "entropy_hash": "4bc6bec6432530cd0159ed9424beb4e1b089b7ccf2430e8de32f82268a3239ed",
  "id": "019fd26a-dde0-72f9-aff0-cfe178fa23c2",
  "inserted_at": "2026-08-05T14:54:06.816222Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "37b3b09bdea3316eea418bf618acac130d50949eecd62d38a2782fdc45bb29c3",
  "signature": "Nx4vTgT/87+TIm31m02L1nfXDSIKnIIeITKQ1t400YRvoGaS3OX0XEvHXcYWxElDIXwii8WaTAfazLndcdfzBw==",
  "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":"2026-08-05T14:54:03Z","hash":"4fc5992b3ef574662a85902c58f0e78043886a5d27c51cab86ab5a79c79fa72a","paging_token":"274070745150128128","sequence":63812068}

Entropy Hash

4bc6bec6432530cd0159ed9424beb4e1b089b7ccf2430e8de32f82268a3239ed

Observation Hash

37b3b09bdea3316eea418bf618acac130d50949eecd62d38a2782fdc45bb29c3

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: 019fd26a-dde0-72f9-aff0-cfe178fa23c2

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, 2:54 PM UTC

Ledger sequence 63812068

Truestamp Capture Time

Aug 5, 2026, 2:54 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)

37b3b09bdea3316eea418bf618acac130d50949eecd62d38a2782fdc45bb29c3

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

Nx4vTgT/87+TIm31m02L1nfXDSIKnIIeITKQ1t400YRvoGaS3OX0XEvHXcYWxElDIXwii8WaTAfazLndcdfzBw==

Verify Signature Manually

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