The City Singers
type: MusicGroup
genre: gospel
popularity: 8
followers: 177
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb36e3d8749abe573376a0b433051328a88dcb9a9b6ed0fde38ed8302a382e9e6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/765068d9-cf16-43c1-a301-27ae91ef6aaa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/765068d9-cf16-43c1-a301-27ae91ef6aaa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/765068d9-cf16-43c1-a301-27ae91ef6aaa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb36e3d8749abe573376a0b433051328a88dcb9a9b6ed0fde38ed8302a382e9e6","name":"The City Singers","registered_at":"2026-06-17T06:53:19Z","symbol":"NIM1315700","token_address":"0x9bbfa07212ae655d73647188ac63e3e6eca86d8f","type":"artist","uuid":"765068d9-cf16-43c1-a301-27ae91ef6aaa"}
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 0xb36e3d8749abe573376a0b433051328a88dcb9a9b6ed0fde38ed8302a382e9e6. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/765068d9-cf16-43c1-a301-27ae91ef6aaa.json and https://artists.proofprofile.net/proofs/artist/765068d9-cf16-43c1-a301-27ae91ef6aaa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xb36e3d8749abe573376a0b433051328a88dcb9a9b6ed0fde38ed8302a382e9e6","name":"The City Singers","registered_at":"2026-06-17T06:53:19Z","symbol":"NIM1315700","token_address":"0x9bbfa07212ae655d73647188ac63e3e6eca86d8f","type":"artist","uuid":"765068d9-cf16-43c1-a301-27ae91ef6aaa"}