Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd0fa-f234-747c-b044-17f0a7e38ea6
Capture Method: Streaming
Captured At: Aug 5, 2026, 8:12 AM UTC

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

{
  "block_id": "019fd0fb-a353-79ac-b164-3b65116c7bdb",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T08:12:11Z",
    "hash": "cf6f62e928c1bd1466de98e3f313954e204bce3c8603332ef9098fef3b4f6ac7",
    "paging_token": "274052324035395584",
    "sequence": 63807779
  },
  "entropy_hash": "a9d9d4de9be6484fbc278e6f1611fafcbe973945c17138531f027de947441198",
  "id": "019fd0fa-f234-747c-b044-17f0a7e38ea6",
  "inserted_at": "2026-08-05T08:12:14.772317Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "571e4b5ff151e72356f037189e304f3e18fb99069e92be33b0386142eda06e8c",
  "signature": "w7ad553LfaFkT+NNxpEK8ZD1egs2lHwBwGwSJxKHUKc57LkWkyCMiPZW04mLm43aXa2ZDuJ7y5vJrXaILuJ8Bg==",
  "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":"2026-08-05T08:12:11Z","hash":"cf6f62e928c1bd1466de98e3f313954e204bce3c8603332ef9098fef3b4f6ac7","paging_token":"274052324035395584","sequence":63807779}

Entropy Hash

a9d9d4de9be6484fbc278e6f1611fafcbe973945c17138531f027de947441198

Observation Hash

571e4b5ff151e72356f037189e304f3e18fb99069e92be33b0386142eda06e8c

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: 019fd0fa-f234-747c-b044-17f0a7e38ea6

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, 8:12 AM UTC

Ledger sequence 63807779

Truestamp Capture Time

Aug 5, 2026, 8:12 AM 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)

571e4b5ff151e72356f037189e304f3e18fb99069e92be33b0386142eda06e8c

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

w7ad553LfaFkT+NNxpEK8ZD1egs2lHwBwGwSJxKHUKc57LkWkyCMiPZW04mLm43aXa2ZDuJ7y5vJrXaILuJ8Bg==

Verify Signature Manually

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