Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd360-1a9a-7598-ba3f-7ca3ef57f182
Capture Method: Streaming
Captured At: Aug 5, 2026, 7:21 PM UTC

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

{
  "block_id": "019fd360-202e-746a-a26e-b2082bbbcdfe",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T19:21:55Z",
    "hash": "ccfaf4e167f12d0118c8ff77b68131380468bf8e0c5d37a658c75f1b790f47e0",
    "paging_token": "274082981511954432",
    "sequence": 63814917
  },
  "entropy_hash": "71861797a7bf8b8e6c16ec4087c5ca5b5796f1cd9eca765b2e9eb73d42e7a528",
  "id": "019fd360-1a9a-7598-ba3f-7ca3ef57f182",
  "inserted_at": "2026-08-05T19:21:58.682388Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "64f9d10a085f54dec138526b0b9be576d4dc7bd12dadb97f4975f8997cb5ef6a",
  "signature": "CB4dkMqni2S/WPFDKjZobMKHFUCiitX55xkAffqjNI2zqrMLk7nH34Nx/Rddm9QQ1MkEgD4KRZJlqxmGioLiAw==",
  "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":"2026-08-05T19:21:55Z","hash":"ccfaf4e167f12d0118c8ff77b68131380468bf8e0c5d37a658c75f1b790f47e0","paging_token":"274082981511954432","sequence":63814917}

Entropy Hash

71861797a7bf8b8e6c16ec4087c5ca5b5796f1cd9eca765b2e9eb73d42e7a528

Observation Hash

64f9d10a085f54dec138526b0b9be576d4dc7bd12dadb97f4975f8997cb5ef6a

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: 019fd360-1a9a-7598-ba3f-7ca3ef57f182

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, 7:21 PM UTC

Ledger sequence 63814917

Truestamp Capture Time

Aug 5, 2026, 7:21 PM UTC

Real-time capture via streaming

Time Difference (Clock Delta)

4 seconds

Source timestamp was 4 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)

64f9d10a085f54dec138526b0b9be576d4dc7bd12dadb97f4975f8997cb5ef6a

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

CB4dkMqni2S/WPFDKjZobMKHFUCiitX55xkAffqjNI2zqrMLk7nH34Nx/Rddm9QQ1MkEgD4KRZJlqxmGioLiAw==

Verify Signature Manually

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