Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd1d5-8e88-7da2-a40d-cb60bd4e403d
Capture Method: Streaming
Captured At: Aug 5, 2026, 12:11 PM UTC

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

{
  "block_id": "019fd1d6-72e4-72b1-ba06-829e07cf58c9",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T12:10:54Z",
    "hash": "9c31c4c97e06c39af2d9d91fd17cb0f77dc4377d1bc9f8b36cf060f2bbd3185e",
    "paging_token": "274063267612065792",
    "sequence": 63810327
  },
  "entropy_hash": "7f704540ba3133d0361198f768f57bb44f6127cd0f47579e6decf4f81deaf9d0",
  "id": "019fd1d5-8e88-7da2-a40d-cb60bd4e403d",
  "inserted_at": "2026-08-05T12:11:01.640889Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "efc94a13955bf96bba7081c6c66d4622d8e59505dbdbb83cef3c143f43542ecf",
  "signature": "lYcIJuZt2iEUZfSaeiH9P8nFaw8ac1m1Ve53fZeX/BCM5RQPoWKOLm2KNu39PKpAeRTv4bJ/dvnI56ax92cWBQ==",
  "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":"2026-08-05T12:10:54Z","hash":"9c31c4c97e06c39af2d9d91fd17cb0f77dc4377d1bc9f8b36cf060f2bbd3185e","paging_token":"274063267612065792","sequence":63810327}

Entropy Hash

7f704540ba3133d0361198f768f57bb44f6127cd0f47579e6decf4f81deaf9d0

Observation Hash

efc94a13955bf96bba7081c6c66d4622d8e59505dbdbb83cef3c143f43542ecf

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: 019fd1d5-8e88-7da2-a40d-cb60bd4e403d

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, 12:10 PM UTC

Ledger sequence 63810327

Truestamp Capture Time

Aug 5, 2026, 12:11 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)

efc94a13955bf96bba7081c6c66d4622d8e59505dbdbb83cef3c143f43542ecf

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

lYcIJuZt2iEUZfSaeiH9P8nFaw8ac1m1Ve53fZeX/BCM5RQPoWKOLm2KNu39PKpAeRTv4bJ/dvnI56ax92cWBQ==

Verify Signature Manually

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