Downtown Singing
type: MusicGroup
popularity: 6
followers: 252
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd4d16c539c4c0bc955667006da24a65d50a05c504ea2bc32d92766a4bd0773df
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aa8e7397-688a-468c-a546-e596e8ba19f6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aa8e7397-688a-468c-a546-e596e8ba19f6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/aa8e7397-688a-468c-a546-e596e8ba19f6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd4d16c539c4c0bc955667006da24a65d50a05c504ea2bc32d92766a4bd0773df","name":"Downtown Singing","registered_at":"2026-06-20T09:34:05Z","symbol":"NIM1579937","token_address":"0xc5de14fbeb43a5b18b3f5aebc65fe4a4983afcf9","type":"artist","uuid":"aa8e7397-688a-468c-a546-e596e8ba19f6"}
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 0xd4d16c539c4c0bc955667006da24a65d50a05c504ea2bc32d92766a4bd0773df. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa8e7397-688a-468c-a546-e596e8ba19f6.json and https://artists.proofprofile.net/proofs/artist/aa8e7397-688a-468c-a546-e596e8ba19f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0xd4d16c539c4c0bc955667006da24a65d50a05c504ea2bc32d92766a4bd0773df","name":"Downtown Singing","registered_at":"2026-06-20T09:34:05Z","symbol":"NIM1579937","token_address":"0xc5de14fbeb43a5b18b3f5aebc65fe4a4983afcf9","type":"artist","uuid":"aa8e7397-688a-468c-a546-e596e8ba19f6"}
album: Volume 1
  type: MusicAlbum
  date published: 2023-04-24
album: The Greatest Commands (Live)
  type: MusicAlbum
  date published: 2024-11-22
album: Volume 2
  type: MusicAlbum
  date published: 2025-07-18