hc do arrocha
type: MusicGroup
genre: arrocha
genre: brega
genre: seresta
popularity: 3
followers: 55
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0848ef4f8f4d4a68e58c00e1ab47e1493c82897e642f7955afd1aaa431a72237
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953907
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953907
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15f9b6b7-0f0f-463f-b6b8-3874e3a33c03.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15f9b6b7-0f0f-463f-b6b8-3874e3a33c03.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/15f9b6b7-0f0f-463f-b6b8-3874e3a33c03
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:39:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0848ef4f8f4d4a68e58c00e1ab47e1493c82897e642f7955afd1aaa431a72237","name":"hc do arrocha","registered_at":"2026-06-15T21:26:14Z","symbol":"NIM0836669","token_address":"0xf28a09b388fefe99bbacf01aeb1b742577b04bb7","type":"artist","uuid":"15f9b6b7-0f0f-463f-b6b8-3874e3a33c03"}
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 0x0848ef4f8f4d4a68e58c00e1ab47e1493c82897e642f7955afd1aaa431a72237. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15f9b6b7-0f0f-463f-b6b8-3874e3a33c03.json and https://artists.proofprofile.net/proofs/artist/15f9b6b7-0f0f-463f-b6b8-3874e3a33c03.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x0848ef4f8f4d4a68e58c00e1ab47e1493c82897e642f7955afd1aaa431a72237","name":"hc do arrocha","registered_at":"2026-06-15T21:26:14Z","symbol":"NIM0836669","token_address":"0xf28a09b388fefe99bbacf01aeb1b742577b04bb7","type":"artist","uuid":"15f9b6b7-0f0f-463f-b6b8-3874e3a33c03"}
album: Torre Eiffel
  type: MusicAlbum
  date published: 2024-07-02
  track: Torre Eiffel
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206837
    explicit: false
    by artist: hc do arrocha
    in album: Torre Eiffel
      type: MusicAlbum
      date published: 2024-07-02
    genre: arrocha
    genre: brega
    genre: seresta
    isrc code: QZNJY2424854
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T08:11:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd26815a5947798a17834b304dae55c9da821e9ee87acaa0089a5160c0996c0a9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956656
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956656
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2424854
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T14:03:39Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26815a5947798a17834b304dae55c9da821e9ee87acaa0089a5160c0996c0a9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNJY2424854.
      date published: 2026-07-04T14:03:39Z
    audio: Torre Eiffel
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 137.117
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.717
      additional property: Energy
        type: PropertyValue
        value: 0.701
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.446
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.173
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.66
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.254
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major