Entropy

Stellar Observation

An independently verifiable temporal proof from an external entropy source.

Observation ID: 019fd3f5-fc6f-72a2-8b39-975c188f7e28
Capture Method: Streaming
Captured At: Aug 5, 2026, 10:05 PM UTC

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

{
  "block_id": "019fd3f6-45ba-7ad9-9b15-9ec69ab461fd",
  "capture_method": "http_sse",
  "entropy": {
    "closed_at": "2026-08-05T22:05:35Z",
    "hash": "2359a13eebb71c5841469a0abe9eca66063c09a561c1413673d3c4f6beb8724e",
    "paging_token": "274090497704722432",
    "sequence": 63816667
  },
  "entropy_hash": "7da49fdf0fdb892a55152a361a26c983923b2aa4715c9053536d864304cc3cca",
  "id": "019fd3f5-fc6f-72a2-8b39-975c188f7e28",
  "inserted_at": "2026-08-05T22:05:41.359214Z",
  "metadata": {},
  "metadata_hash": "5dd81d4309de99c9f8e70822e760f0eece8c33370ff5fb5da3af75bab0cbaab8",
  "observation_hash": "77bb85590e2fc3f7dbe0a452010b0ac30726e921de706ad2e144851263b190c5",
  "signature": "Cp5qGyPqmtcTHX2MMBfTN4p40Dc5uS99j/1zhWJLuzFC29kyRWWhYAPDgToXWzJCTTqW3PAbKFZn3AFZW4PvAw==",
  "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":"2026-08-05T22:05:35Z","hash":"2359a13eebb71c5841469a0abe9eca66063c09a561c1413673d3c4f6beb8724e","paging_token":"274090497704722432","sequence":63816667}

Entropy Hash

7da49fdf0fdb892a55152a361a26c983923b2aa4715c9053536d864304cc3cca

Observation Hash

77bb85590e2fc3f7dbe0a452010b0ac30726e921de706ad2e144851263b190c5

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: 019fd3f5-fc6f-72a2-8b39-975c188f7e28

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, 10:05 PM UTC

Ledger sequence 63816667

Truestamp Capture Time

Aug 5, 2026, 10:05 PM UTC

Real-time capture via streaming

Time Difference (Clock Delta)

7 seconds

Source timestamp was 7 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)

77bb85590e2fc3f7dbe0a452010b0ac30726e921de706ad2e144851263b190c5

Public Key (Base64 encoded)

1hHbF5H5u8LiSp+nVMRb8duR2eGkOo5Q1JYfcmAtF28=

Signature (Base64 encoded)

Cp5qGyPqmtcTHX2MMBfTN4p40Dc5uS99j/1zhWJLuzFC29kyRWWhYAPDgToXWzJCTTqW3PAbKFZn3AFZW4PvAw==

Verify Signature Manually

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