Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd5ed-b491-70ac-ad20-a0ef71a1ab9b
Capture Method: Streaming
Captured At: Aug 6, 2026, 7:15 AM UTC

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

{
  "block_id": "019fd5ed-cffd-778a-a9b7-94a00963e160",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-06T07:15:48Z",
    "hash": "b9159b7449cde6998be08b87a6b36d3010b6c16cf86c76e90508baf9b5cc4a41",
    "paging_token": "274115756407390208",
    "sequence": 63822548
  },
  "entropy_hash": "5c8f071e860caa5b92cb793aea87f4b1fff2bfa8b472a757f2dee7e54b27595b",
  "id": "019fd5ed-b491-70ac-ad20-a0ef71a1ab9b",
  "inserted_at": "2026-08-06T07:15:53.105078Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "78a0717624f45fc71999d6a9b2e812c566a69b6712c793690afba18ba8e2ef77",
  "signature": "2+9YgAOR94HPr0mEeOJeGnfPNskDyoQA7/egZfUx4/8xtRMcCc2SqytsayUIHEDgtZjVjU1svxYN/Ovts1vkCg==",
  "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":"2026-08-06T07:15:48Z","hash":"b9159b7449cde6998be08b87a6b36d3010b6c16cf86c76e90508baf9b5cc4a41","paging_token":"274115756407390208","sequence":63822548}

Entropy Hash

5c8f071e860caa5b92cb793aea87f4b1fff2bfa8b472a757f2dee7e54b27595b

Observation Hash

78a0717624f45fc71999d6a9b2e812c566a69b6712c793690afba18ba8e2ef77

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: 019fd5ed-b491-70ac-ad20-a0ef71a1ab9b

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 6, 2026, 7:15 AM UTC

Ledger sequence 63822548

Truestamp Capture Time

Aug 6, 2026, 7:15 AM 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)

78a0717624f45fc71999d6a9b2e812c566a69b6712c793690afba18ba8e2ef77

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

2+9YgAOR94HPr0mEeOJeGnfPNskDyoQA7/egZfUx4/8xtRMcCc2SqytsayUIHEDgtZjVjU1svxYN/Ovts1vkCg==

Verify Signature Manually

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