Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd3fc-2c1e-7cfc-91e8-4b9dd8c550a4
Capture Method: Streaming
Captured At: Aug 5, 2026, 10:12 PM UTC

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

{
  "block_id": "019fd3fc-ae90-728c-9d11-b9a3d7cc34a5",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T22:12:23Z",
    "hash": "e74e583fde7ec88760636620a7f5ab8811fe87e862242fcb86e616275681812a",
    "paging_token": "274090806942367744",
    "sequence": 63816739
  },
  "entropy_hash": "2dd0eafdb924b7b70719015b2235ec8965cc459a44fa45d640fc826f24911c92",
  "id": "019fd3fc-2c1e-7cfc-91e8-4b9dd8c550a4",
  "inserted_at": "2026-08-05T22:12:26.782849Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "3f90232a7b4e58d1610487807e6e91d2a5f87dd26a6dcf8a21202122922896d9",
  "signature": "swqbQX59mPuLzb5JaH4gURTAlq2qtzNPrPGdzYLYK/pBISHKppH6/fZAHjyjmOaHS5NrgDkMVWxcEziabOL3CQ==",
  "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":"2026-08-05T22:12:23Z","hash":"e74e583fde7ec88760636620a7f5ab8811fe87e862242fcb86e616275681812a","paging_token":"274090806942367744","sequence":63816739}

Entropy Hash

2dd0eafdb924b7b70719015b2235ec8965cc459a44fa45d640fc826f24911c92

Observation Hash

3f90232a7b4e58d1610487807e6e91d2a5f87dd26a6dcf8a21202122922896d9

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: 019fd3fc-2c1e-7cfc-91e8-4b9dd8c550a4

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, 10:12 PM UTC

Ledger sequence 63816739

Truestamp Capture Time

Aug 5, 2026, 10:12 PM 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)

3f90232a7b4e58d1610487807e6e91d2a5f87dd26a6dcf8a21202122922896d9

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

swqbQX59mPuLzb5JaH4gURTAlq2qtzNPrPGdzYLYK/pBISHKppH6/fZAHjyjmOaHS5NrgDkMVWxcEziabOL3CQ==

Verify Signature Manually

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