Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd1f7-c378-7e7e-a0c4-b71e8a7936c6
Capture Method: Streaming
Captured At: Aug 5, 2026, 12:48 PM UTC

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

{
  "block_id": "019fd1f8-52c3-7605-9d8e-6f290fe82580",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T12:48:20Z",
    "hash": "9860bd9974e93745e3ce64a0c0a85f41b95b5dfd70f90cdcb793154e3cdd2432",
    "paging_token": "274064989893951488",
    "sequence": 63810728
  },
  "entropy_hash": "44d7e5b65f4babab8f14be7b5d227898b8556f704598b7282f9e6e8f0c9f935a",
  "id": "019fd1f7-c378-7e7e-a0c4-b71e8a7936c6",
  "inserted_at": "2026-08-05T12:48:23.416941Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "b3b7f9694d51003d28ffe305bedac95d7896352b1ee0d3bdc69907d22e9a645c",
  "signature": "VkpDhbKGUNLI6MhG/4LRcdZ+yL/u93K664HKXqDC35l653Iw3Yjotj5RNIa13h7UvfovBkU/nVzK+G2QU+RzDQ==",
  "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":"2026-08-05T12:48:20Z","hash":"9860bd9974e93745e3ce64a0c0a85f41b95b5dfd70f90cdcb793154e3cdd2432","paging_token":"274064989893951488","sequence":63810728}

Entropy Hash

44d7e5b65f4babab8f14be7b5d227898b8556f704598b7282f9e6e8f0c9f935a

Observation Hash

b3b7f9694d51003d28ffe305bedac95d7896352b1ee0d3bdc69907d22e9a645c

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: 019fd1f7-c378-7e7e-a0c4-b71e8a7936c6

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, 12:48 PM UTC

Ledger sequence 63810728

Truestamp Capture Time

Aug 5, 2026, 12:48 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)

b3b7f9694d51003d28ffe305bedac95d7896352b1ee0d3bdc69907d22e9a645c

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

VkpDhbKGUNLI6MhG/4LRcdZ+yL/u93K664HKXqDC35l653Iw3Yjotj5RNIa13h7UvfovBkU/nVzK+G2QU+RzDQ==

Verify Signature Manually

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