Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd2ce-47b7-7b71-a87b-9f0b8d8409ea
Capture Method: Streaming
Captured At: Aug 5, 2026, 4:42 PM UTC

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

{
  "block_id": "019fd2ce-8eda-75c3-9c2e-afa1728a18b6",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T16:42:36Z",
    "hash": "663d73b1d9e2defa46409380a1c0106b3a399c1740ec5f34b4e35869d1adbfd2",
    "paging_token": "274075710132322304",
    "sequence": 63813224
  },
  "entropy_hash": "ff9514a69f3a0987e6722dbb71527e3e23b32f48e9eeff01fd4c34f247c4c1a2",
  "id": "019fd2ce-47b7-7b71-a87b-9f0b8d8409ea",
  "inserted_at": "2026-08-05T16:42:41.975779Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "739f58a048398da87302fb946ad2e10d291081b0b8b6537af9f4ad3cc31d5cb6",
  "signature": "goHZaiPktaHrxsnhzHAJPPbBQigwj4C1POGif60hqNIhwpfRoPbWGG+tPUfps3OY//hpLHvTxPoKyiz5XtRAAA==",
  "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":"2026-08-05T16:42:36Z","hash":"663d73b1d9e2defa46409380a1c0106b3a399c1740ec5f34b4e35869d1adbfd2","paging_token":"274075710132322304","sequence":63813224}

Entropy Hash

ff9514a69f3a0987e6722dbb71527e3e23b32f48e9eeff01fd4c34f247c4c1a2

Observation Hash

739f58a048398da87302fb946ad2e10d291081b0b8b6537af9f4ad3cc31d5cb6

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: 019fd2ce-47b7-7b71-a87b-9f0b8d8409ea

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, 4:42 PM UTC

Ledger sequence 63813224

Truestamp Capture Time

Aug 5, 2026, 4:42 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)

739f58a048398da87302fb946ad2e10d291081b0b8b6537af9f4ad3cc31d5cb6

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

goHZaiPktaHrxsnhzHAJPPbBQigwj4C1POGif60hqNIhwpfRoPbWGG+tPUfps3OY//hpLHvTxPoKyiz5XtRAAA==

Verify Signature Manually

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