Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd2b4-d4b9-7785-bcaf-161bfe2cdfa1
Capture Method: Streaming
Captured At: Aug 5, 2026, 4:14 PM UTC

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

{
  "block_id": "019fd2b4-ec1a-73c2-b48f-5d562efed80c",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T16:14:47Z",
    "hash": "f0b8bf166b753ee640a6c7dc3fa59df284ad08669c072d504e0dd1d44bff2390",
    "paging_token": "274074438822002688",
    "sequence": 63812928
  },
  "entropy_hash": "b9f5209646771d27aa6d3a1e06f8ad9acdb39b8bc278e6e6dfa50eb315a51a1a",
  "id": "019fd2b4-d4b9-7785-bcaf-161bfe2cdfa1",
  "inserted_at": "2026-08-05T16:14:54.137509Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "7b9153ce4784d7a593c9012fd4dcf7c59d04c28a3b564b1c9a04fa7fd780add2",
  "signature": "M71eWVWLPC0bxsV3EFaGJRKj2Z6bgTWpMXgPK2ie373OovbK6XMOekuaLxW5tE+9iworWOoQi3SpNeeIgpzxBw==",
  "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":"2026-08-05T16:14:47Z","hash":"f0b8bf166b753ee640a6c7dc3fa59df284ad08669c072d504e0dd1d44bff2390","paging_token":"274074438822002688","sequence":63812928}

Entropy Hash

b9f5209646771d27aa6d3a1e06f8ad9acdb39b8bc278e6e6dfa50eb315a51a1a

Observation Hash

7b9153ce4784d7a593c9012fd4dcf7c59d04c28a3b564b1c9a04fa7fd780add2

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: 019fd2b4-d4b9-7785-bcaf-161bfe2cdfa1

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, 4:14 PM UTC

Ledger sequence 63812928

Truestamp Capture Time

Aug 5, 2026, 4:14 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)

7b9153ce4784d7a593c9012fd4dcf7c59d04c28a3b564b1c9a04fa7fd780add2

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

M71eWVWLPC0bxsV3EFaGJRKj2Z6bgTWpMXgPK2ie373OovbK6XMOekuaLxW5tE+9iworWOoQi3SpNeeIgpzxBw==

Verify Signature Manually

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