Lee Hoiby
type: MusicGroup
description: Lee Henry Hoiby (February 17, 1926 – March 28, 2011) was an American composer and classical pianist. Best known as a composer of operas and songs, he was a disciple of composer Gian Carlo Menotti. Lik
popularity: 5
followers: 168
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe93a8ef4736b27cb87c2ebfccc1c3069c6590a4e69cc99dc9d8b67e7858aadd5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953976
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953976
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b59c646-c819-4224-ab49-6a4037ce634c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b59c646-c819-4224-ab49-6a4037ce634c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2b59c646-c819-4224-ab49-6a4037ce634c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:55:36Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe93a8ef4736b27cb87c2ebfccc1c3069c6590a4e69cc99dc9d8b67e7858aadd5","name":"Lee Hoiby","registered_at":"2026-06-16T04:43:58Z","symbol":"NIM0941190","token_address":"0xbb06a72377578a5d33eea07562873d5bf5efa8f8","type":"artist","uuid":"2b59c646-c819-4224-ab49-6a4037ce634c"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93a8ef4736b27cb87c2ebfccc1c3069c6590a4e69cc99dc9d8b67e7858aadd5. Chain 2 (Bitcoin): anchored in block 953976 (2026-06-16T16:55:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b59c646-c819-4224-ab49-6a4037ce634c.json and https://artists.proofprofile.net/proofs/artist/2b59c646-c819-4224-ab49-6a4037ce634c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:55:36Z
  text: {"copyright_id":"0xe93a8ef4736b27cb87c2ebfccc1c3069c6590a4e69cc99dc9d8b67e7858aadd5","name":"Lee Hoiby","registered_at":"2026-06-16T04:43:58Z","symbol":"NIM0941190","token_address":"0xbb06a72377578a5d33eea07562873d5bf5efa8f8","type":"artist","uuid":"2b59c646-c819-4224-ab49-6a4037ce634c"}
album: Lee Hoiby: The Italian Lesson
  type: MusicAlbum
  date published: 2023-04-25