Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd3bb-1c7d-710c-b09d-a6dd8b7cf543
Capture Method: Streaming
Captured At: Aug 5, 2026, 9:01 PM UTC

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

{
  "block_id": "019fd3bb-adaf-7f8e-9a15-adfb542e2325",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T21:01:19Z",
    "hash": "eb74b045d4ba10c6367886619ace73c9e5cebd34ba4f90ff7f896e1c70d09388",
    "paging_token": "274087542767222784",
    "sequence": 63815979
  },
  "entropy_hash": "d6621e7fb1b942dd7ba73e8981df5403a2654e9e9666f55e39b888e5e68c630c",
  "id": "019fd3bb-1c7d-710c-b09d-a6dd8b7cf543",
  "inserted_at": "2026-08-05T21:01:22.941100Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "7946e1a322c8ec8b2ab9186cffce2da732bc30da5a7231dacdb60aac7a19248c",
  "signature": "J2Roffnr1+YKeUoWo+Gh2QG6IOSlapAFASa6XkIMhGcHEr+xz3ndncIUQ04epD2nY6nvzjPqZOEXa4TUzYnzDQ==",
  "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":"2026-08-05T21:01:19Z","hash":"eb74b045d4ba10c6367886619ace73c9e5cebd34ba4f90ff7f896e1c70d09388","paging_token":"274087542767222784","sequence":63815979}

Entropy Hash

d6621e7fb1b942dd7ba73e8981df5403a2654e9e9666f55e39b888e5e68c630c

Observation Hash

7946e1a322c8ec8b2ab9186cffce2da732bc30da5a7231dacdb60aac7a19248c

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: 019fd3bb-1c7d-710c-b09d-a6dd8b7cf543

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, 9:01 PM UTC

Ledger sequence 63815979

Truestamp Capture Time

Aug 5, 2026, 9:01 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)

7946e1a322c8ec8b2ab9186cffce2da732bc30da5a7231dacdb60aac7a19248c

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

J2Roffnr1+YKeUoWo+Gh2QG6IOSlapAFASa6XkIMhGcHEr+xz3ndncIUQ04epD2nY6nvzjPqZOEXa4TUzYnzDQ==

Verify Signature Manually

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