Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd1cc-8746-74c2-aaa1-59bb9bcc738b
Capture Method: Streaming
Captured At: Aug 5, 2026, 12:01 PM UTC

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

{
  "block_id": "019fd1cd-4b2f-72bb-87ab-356b88c4c324",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T12:01:05Z",
    "hash": "388058e2cc05d86594a76250bdf3e2fb1812c3c14f96b5b31e547cb09e3a42fa",
    "paging_token": "274062816640499712",
    "sequence": 63810222
  },
  "entropy_hash": "dc9fa7e161c7bf7c96e8e0f61cb2aaa6aaf9f3a6b275b29524f67cc17ba012a4",
  "id": "019fd1cc-8746-74c2-aaa1-59bb9bcc738b",
  "inserted_at": "2026-08-05T12:01:09.958337Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "475c9e1cc95a341b024c3f28cbe9d5dacd29f87be0525573d42f78b5dc9aa397",
  "signature": "QSQeGv/R3OUC/UZVhE66xSq4zP8n7BQcjZKer5COfQWJ73t91rA5xn+/INpGMX0lAfDDCj/4rxF0BiqGgKVmCA==",
  "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":"2026-08-05T12:01:05Z","hash":"388058e2cc05d86594a76250bdf3e2fb1812c3c14f96b5b31e547cb09e3a42fa","paging_token":"274062816640499712","sequence":63810222}

Entropy Hash

dc9fa7e161c7bf7c96e8e0f61cb2aaa6aaf9f3a6b275b29524f67cc17ba012a4

Observation Hash

475c9e1cc95a341b024c3f28cbe9d5dacd29f87be0525573d42f78b5dc9aa397

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: 019fd1cc-8746-74c2-aaa1-59bb9bcc738b

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, 12:01 PM UTC

Ledger sequence 63810222

Truestamp Capture Time

Aug 5, 2026, 12:01 PM UTC

Real-time capture via streaming

Time Difference (Clock Delta)

5 seconds

Source timestamp was 5 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)

475c9e1cc95a341b024c3f28cbe9d5dacd29f87be0525573d42f78b5dc9aa397

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

QSQeGv/R3OUC/UZVhE66xSq4zP8n7BQcjZKer5COfQWJ73t91rA5xn+/INpGMX0lAfDDCj/4rxF0BiqGgKVmCA==

Verify Signature Manually

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