The Crooning Professionals
type: MusicGroup
popularity: 2
followers: 63
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef21c38aa584d41db7ebcff8e06d797bbe7179d810874247ed8d106e0d7f523a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/deeb3b7a-5326-4226-bd42-37a078abe814.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/deeb3b7a-5326-4226-bd42-37a078abe814.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/deeb3b7a-5326-4226-bd42-37a078abe814
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xef21c38aa584d41db7ebcff8e06d797bbe7179d810874247ed8d106e0d7f523a","name":"The Crooning Professionals","registered_at":"2026-06-21T06:01:41Z","symbol":"NIM1841997","token_address":"0xfd67de0c550b01028dcb5878f03e90e7309e9635","type":"artist","uuid":"deeb3b7a-5326-4226-bd42-37a078abe814"}
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 0xef21c38aa584d41db7ebcff8e06d797bbe7179d810874247ed8d106e0d7f523a. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/deeb3b7a-5326-4226-bd42-37a078abe814.json and https://artists.proofprofile.net/proofs/artist/deeb3b7a-5326-4226-bd42-37a078abe814.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xef21c38aa584d41db7ebcff8e06d797bbe7179d810874247ed8d106e0d7f523a","name":"The Crooning Professionals","registered_at":"2026-06-21T06:01:41Z","symbol":"NIM1841997","token_address":"0xfd67de0c550b01028dcb5878f03e90e7309e9635","type":"artist","uuid":"deeb3b7a-5326-4226-bd42-37a078abe814"}
album: Croon! Croon! Croon! Classic Backing Tracks for Professionals, Vol. 2
  type: MusicAlbum
  date published: 2017-12-15
album: Croon! Croon! Croon! Classic Backing Tracks for Professionals, Vol. 3
  type: MusicAlbum
  date published: 2017-12-15
album: Croon! Croon! Croon! Classic Backing Tracks for Professionals
  type: MusicAlbum
  date published: 2017-12-15