Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd1c5-027f-7cd0-9f9c-ca8ccc400ba3
Capture Method: Streaming
Captured At: Aug 5, 2026, 11:52 AM UTC

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

{
  "block_id": "019fd1c5-0dcb-75b5-a866-89d7845a26dc",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T11:52:51Z",
    "hash": "b7f4a7f40dd1d87e8bb5374f6d1b20f093e9fc707b3dd5b6171378a578ad7dd2",
    "paging_token": "274062438683377664",
    "sequence": 63810134
  },
  "entropy_hash": "3198d47b4dff985c7ed8186dac9ceffef196ef4aba929016f71c8eaebcec6db8",
  "id": "019fd1c5-027f-7cd0-9f9c-ca8ccc400ba3",
  "inserted_at": "2026-08-05T11:52:57.215841Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "11cab0209b6561606bf9f50c82eea4854346d3e25a5ff502d31e9160688b2127",
  "signature": "f1CyiVzYKLqqJXIIOOc/oElFSoQTNTXaiFW4vTp+q2XMwVEU4+bDuDDnVnJ6aG1+mcQ0VH5u/Fv+XzyggWOQDw==",
  "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":"2026-08-05T11:52:51Z","hash":"b7f4a7f40dd1d87e8bb5374f6d1b20f093e9fc707b3dd5b6171378a578ad7dd2","paging_token":"274062438683377664","sequence":63810134}

Entropy Hash

3198d47b4dff985c7ed8186dac9ceffef196ef4aba929016f71c8eaebcec6db8

Observation Hash

11cab0209b6561606bf9f50c82eea4854346d3e25a5ff502d31e9160688b2127

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: 019fd1c5-027f-7cd0-9f9c-ca8ccc400ba3

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, 11:52 AM UTC

Ledger sequence 63810134

Truestamp Capture Time

Aug 5, 2026, 11:52 AM UTC

Real-time capture via streaming

Time Difference (Clock Delta)

7 seconds

Source timestamp was 7 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)

11cab0209b6561606bf9f50c82eea4854346d3e25a5ff502d31e9160688b2127

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

f1CyiVzYKLqqJXIIOOc/oElFSoQTNTXaiFW4vTp+q2XMwVEU4+bDuDDnVnJ6aG1+mcQ0VH5u/Fv+XzyggWOQDw==

Verify Signature Manually

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