Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd23b-74e4-7c2c-8711-f88df109ffdb
Capture Method: Streaming
Captured At: Aug 5, 2026, 2:02 PM UTC

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

{
  "block_id": "019fd23c-1296-7c79-8bdb-407a16095baf",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T14:02:12Z",
    "hash": "c5d49a3707bb1dc9a25fe79f8ac4e6c249f2c9297f6af2943fe52929f5cff4a0",
    "paging_token": "274068370033213440",
    "sequence": 63811515
  },
  "entropy_hash": "d00de0f5ca04dc1b8ef233cfe94d6bb8c34e49a3b84f2f34b5545e4e4f3c407e",
  "id": "019fd23b-74e4-7c2c-8711-f88df109ffdb",
  "inserted_at": "2026-08-05T14:02:19.748800Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "1a6ea50ba38d57df7eb6047c4ae703121aed4daad4af7199cfdba1eef17f229b",
  "signature": "okNLUJDSQUT1Cxq3ArZYDdpLOD3JT5qSfEdF/ZpWJfTPo11tT99eLxWgyVy+VS0VJFq+jRXXa6usTi16ELT6Cw==",
  "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":"2026-08-05T14:02:12Z","hash":"c5d49a3707bb1dc9a25fe79f8ac4e6c249f2c9297f6af2943fe52929f5cff4a0","paging_token":"274068370033213440","sequence":63811515}

Entropy Hash

d00de0f5ca04dc1b8ef233cfe94d6bb8c34e49a3b84f2f34b5545e4e4f3c407e

Observation Hash

1a6ea50ba38d57df7eb6047c4ae703121aed4daad4af7199cfdba1eef17f229b

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: 019fd23b-74e4-7c2c-8711-f88df109ffdb

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, 2:02 PM UTC

Ledger sequence 63811515

Truestamp Capture Time

Aug 5, 2026, 2:02 PM UTC

Real-time capture via streaming

Time Difference (Clock Delta)

8 seconds

Source timestamp was 8 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)

1a6ea50ba38d57df7eb6047c4ae703121aed4daad4af7199cfdba1eef17f229b

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

okNLUJDSQUT1Cxq3ArZYDdpLOD3JT5qSfEdF/ZpWJfTPo11tT99eLxWgyVy+VS0VJFq+jRXXa6usTi16ELT6Cw==

Verify Signature Manually

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