Lu Leonard
type: MusicGroup
description: Lu Leonard (born Mary Lou Price; June 5, 1926 – May 14, 2004) credited also as Lou Leonard, was an American character actress who appeared in numerous television series, theatre and, briefly, film. Sh
popularity: 18
followers: 73
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4be900125fe8d39d773271b6113004fadfd9ae04fb6beda07b704bfdf4457133
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953754
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953754
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ac7dfa04-749b-4dde-9460-d48a4bca826b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ac7dfa04-749b-4dde-9460-d48a4bca826b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ac7dfa04-749b-4dde-9460-d48a4bca826b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T06:45:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4be900125fe8d39d773271b6113004fadfd9ae04fb6beda07b704bfdf4457133","name":"Lu Leonard","registered_at":"2026-06-14T22:40:18Z","symbol":"NIM0598956","token_address":"0x8c4dd3d0ee3907776bd6cb62713d559a37b38ce2","type":"artist","uuid":"ac7dfa04-749b-4dde-9460-d48a4bca826b"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be900125fe8d39d773271b6113004fadfd9ae04fb6beda07b704bfdf4457133. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac7dfa04-749b-4dde-9460-d48a4bca826b.json and https://artists.proofprofile.net/proofs/artist/ac7dfa04-749b-4dde-9460-d48a4bca826b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T06:45:19Z
  text: {"copyright_id":"0x4be900125fe8d39d773271b6113004fadfd9ae04fb6beda07b704bfdf4457133","name":"Lu Leonard","registered_at":"2026-06-14T22:40:18Z","symbol":"NIM0598956","token_address":"0x8c4dd3d0ee3907776bd6cb62713d559a37b38ce2","type":"artist","uuid":"ac7dfa04-749b-4dde-9460-d48a4bca826b"}