Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd340-c5b4-7aba-ad20-e91cc43717fa
Capture Method: Streaming
Captured At: Aug 5, 2026, 6:47 PM UTC

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

{
  "block_id": "019fd340-ff72-70b3-81be-9a40e12c0181",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T18:47:40Z",
    "hash": "970090f7e9d8128d55c333263c2c19cbf1a878771d7a31fd2bd0831162440173",
    "paging_token": "274081413848891392",
    "sequence": 63814552
  },
  "entropy_hash": "05d43936b0a9bc342287c0f68dec9257fa51574fa7f34c0839c108c639b902d2",
  "id": "019fd340-c5b4-7aba-ad20-e91cc43717fa",
  "inserted_at": "2026-08-05T18:47:45.332710Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "65f87a86348290bba261d3eb7a2ed7d4889fb4301721572075e5943471ebc6f6",
  "signature": "BfNzHQDcLxyC2QcVWBHwRYmLIyRKjGJ8YptRxxENzobxg5DMqqN447bW6x5PjbN6M5H8p0HOFT7KCVR8miLyAQ==",
  "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":"2026-08-05T18:47:40Z","hash":"970090f7e9d8128d55c333263c2c19cbf1a878771d7a31fd2bd0831162440173","paging_token":"274081413848891392","sequence":63814552}

Entropy Hash

05d43936b0a9bc342287c0f68dec9257fa51574fa7f34c0839c108c639b902d2

Observation Hash

65f87a86348290bba261d3eb7a2ed7d4889fb4301721572075e5943471ebc6f6

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: 019fd340-c5b4-7aba-ad20-e91cc43717fa

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, 6:47 PM UTC

Ledger sequence 63814552

Truestamp Capture Time

Aug 5, 2026, 6:47 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)

65f87a86348290bba261d3eb7a2ed7d4889fb4301721572075e5943471ebc6f6

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

BfNzHQDcLxyC2QcVWBHwRYmLIyRKjGJ8YptRxxENzobxg5DMqqN447bW6x5PjbN6M5H8p0HOFT7KCVR8miLyAQ==

Verify Signature Manually

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