Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd2ff-acb3-767f-b8a9-6ebe0ad2ee9c
Capture Method: Streaming
Captured At: Aug 5, 2026, 5:36 PM UTC

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

{
  "block_id": "019fd2ff-fee8-7b9f-9764-90cf1c2f7120",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T17:36:34Z",
    "hash": "fa72e3f6f9a7db50c15001fa16ef215be599d4aa6b92dc08174474fbbea5a814",
    "paging_token": "274078171148582912",
    "sequence": 63813797
  },
  "entropy_hash": "c500827a1fbcb1e1826240eb9378522bbf8bba4faa5f3fe87857b6124d0d3594",
  "id": "019fd2ff-acb3-767f-b8a9-6ebe0ad2ee9c",
  "inserted_at": "2026-08-05T17:36:39.091445Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "b9a4487ebd471c49c8ab8e6affbea7b61129970dd05935f7910a9e56a5217b9e",
  "signature": "AwUDegWUK7uJZ3uXA/EDQXNAR8SVG8dlgGot8N4KJ+3Bs0aLLYuCQJfmt5W7BtmhXrhf3LzkwPb+SMmx67j1DA==",
  "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":"2026-08-05T17:36:34Z","hash":"fa72e3f6f9a7db50c15001fa16ef215be599d4aa6b92dc08174474fbbea5a814","paging_token":"274078171148582912","sequence":63813797}

Entropy Hash

c500827a1fbcb1e1826240eb9378522bbf8bba4faa5f3fe87857b6124d0d3594

Observation Hash

b9a4487ebd471c49c8ab8e6affbea7b61129970dd05935f7910a9e56a5217b9e

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: 019fd2ff-acb3-767f-b8a9-6ebe0ad2ee9c

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, 5:36 PM UTC

Ledger sequence 63813797

Truestamp Capture Time

Aug 5, 2026, 5:36 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)

b9a4487ebd471c49c8ab8e6affbea7b61129970dd05935f7910a9e56a5217b9e

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

AwUDegWUK7uJZ3uXA/EDQXNAR8SVG8dlgGot8N4KJ+3Bs0aLLYuCQJfmt5W7BtmhXrhf3LzkwPb+SMmx67j1DA==

Verify Signature Manually

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