Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd2d0-0aaa-78aa-a2c6-ce7934140ba7
Capture Method: Streaming
Captured At: Aug 5, 2026, 4:44 PM UTC

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

{
  "block_id": "019fd2d0-6392-7475-a679-6fda7ceb03e0",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T16:44:33Z",
    "hash": "e3c691a41602fe537ea5bee683c687c992a11aa4e7f5fc74c2c06a467e523180",
    "paging_token": "274075800326635520",
    "sequence": 63813245
  },
  "entropy_hash": "a0e09ae53498883d8d0fde37f514b6b57ecfc4ef9cfe7b49e4075f183ff5279d",
  "id": "019fd2d0-0aaa-78aa-a2c6-ce7934140ba7",
  "inserted_at": "2026-08-05T16:44:37.418579Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "d366dcc2fac378b595d57c310d65ad64a21292ab85069fd034cbb5748f2c47c8",
  "signature": "dKkANPrdKzQvfI2xh0yOwER4MlVCMnZaYSATqzJ9MWd2v5HxSlO3Ht6cIRkbRTlICfJK+DovjRwAuSgb7icqAQ==",
  "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":"2026-08-05T16:44:33Z","hash":"e3c691a41602fe537ea5bee683c687c992a11aa4e7f5fc74c2c06a467e523180","paging_token":"274075800326635520","sequence":63813245}

Entropy Hash

a0e09ae53498883d8d0fde37f514b6b57ecfc4ef9cfe7b49e4075f183ff5279d

Observation Hash

d366dcc2fac378b595d57c310d65ad64a21292ab85069fd034cbb5748f2c47c8

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: 019fd2d0-0aaa-78aa-a2c6-ce7934140ba7

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, 4:44 PM UTC

Ledger sequence 63813245

Truestamp Capture Time

Aug 5, 2026, 4:44 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)

d366dcc2fac378b595d57c310d65ad64a21292ab85069fd034cbb5748f2c47c8

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

dKkANPrdKzQvfI2xh0yOwER4MlVCMnZaYSATqzJ9MWd2v5HxSlO3Ht6cIRkbRTlICfJK+DovjRwAuSgb7icqAQ==

Verify Signature Manually

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