Arcó
type: MusicGroup
popularity: 3
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbd1c7c8ed558ce9ce23a95eafc4ecd5eb64d8444728376d383035f324cef9de9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d34812f8-9e39-46dd-99f8-35d387c24b22.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d34812f8-9e39-46dd-99f8-35d387c24b22.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d34812f8-9e39-46dd-99f8-35d387c24b22
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbd1c7c8ed558ce9ce23a95eafc4ecd5eb64d8444728376d383035f324cef9de9","name":"Arcó","registered_at":"2026-06-21T01:52:10Z","symbol":"NIM1782068","token_address":"0xb12109857d8cd11c4948bf12bddbaf93866b59a6","type":"artist","uuid":"d34812f8-9e39-46dd-99f8-35d387c24b22"}
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 0xbd1c7c8ed558ce9ce23a95eafc4ecd5eb64d8444728376d383035f324cef9de9. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d34812f8-9e39-46dd-99f8-35d387c24b22.json and https://artists.proofprofile.net/proofs/artist/d34812f8-9e39-46dd-99f8-35d387c24b22.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0xbd1c7c8ed558ce9ce23a95eafc4ecd5eb64d8444728376d383035f324cef9de9","name":"Arcó","registered_at":"2026-06-21T01:52:10Z","symbol":"NIM1782068","token_address":"0xb12109857d8cd11c4948bf12bddbaf93866b59a6","type":"artist","uuid":"d34812f8-9e39-46dd-99f8-35d387c24b22"}
album: BELLO
  type: MusicAlbum
  date published: 2025-05-22
  track: BELLO
    type: MusicRecording
    duration: PT3M44S
    duration ms: 224181
    explicit: false
    by artist: Arcó
    in album: BELLO
      type: MusicAlbum
      date published: 2025-05-22
    isrc code: CACWV2595810
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T06:39:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x15662636504747dc6ebe9f1338ced7cdb683a89b904c716456a65ab8de6cf79a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958378
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958378
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CACWV2595810
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T06:45:39Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x15662636504747dc6ebe9f1338ced7cdb683a89b904c716456a65ab8de6cf79a. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CACWV2595810.
      date published: 2026-07-17T06:45:39Z
    audio: BELLO
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 110.046
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.772
      additional property: Energy
        type: PropertyValue
        value: 0.921
      additional property: Speechiness
        type: PropertyValue
        value: 0.174
      additional property: Acousticness
        type: PropertyValue
        value: 0.141
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.077
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.647
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.33
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor