GRCA.
type: MusicGroup
genre: afro house
popularity: 2
followers: 89
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x46a9a0c92201dabcb67ff5714fc2128f81fb407db5f0b6cd701e9e510e93d953
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/af46229c-d48d-48f2-bafa-2833857869dc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/af46229c-d48d-48f2-bafa-2833857869dc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/af46229c-d48d-48f2-bafa-2833857869dc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
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 0x46a9a0c92201dabcb67ff5714fc2128f81fb407db5f0b6cd701e9e510e93d953. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/af46229c-d48d-48f2-bafa-2833857869dc.json and https://artists.proofprofile.net/proofs/artist/af46229c-d48d-48f2-bafa-2833857869dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
album: prioridade
  type: MusicAlbum
  date published: 2024-07-26
album: missed calls
  type: MusicAlbum
  date published: 2024-10-11
  track: missed calls
    type: MusicRecording
    duration: PT2M36S
    duration ms: 156190
    explicit: false
    by artist: GRCA.
    in album: missed calls
      type: MusicAlbum
      date published: 2024-10-11
    genre: afro house
    isrc code: QZWFP2403682
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-31T15:35:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5182bc23b1c16f3ddff60eb6bcfa79d918bd9ae50fa126cc9495f61629e00378
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960427
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960427
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFP2403682
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-31T15:59:18Z
    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 0x5182bc23b1c16f3ddff60eb6bcfa79d918bd9ae50fa126cc9495f61629e00378. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QZWFP2403682.
      date published: 2026-07-31T15:59:18Z
    audio: missed calls
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.692
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.949
      additional property: Energy
        type: PropertyValue
        value: 0.78
      additional property: Speechiness
        type: PropertyValue
        value: 0.149
      additional property: Acousticness
        type: PropertyValue
        value: 0.038
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.146
      additional property: Liveness
        type: PropertyValue
        value: 0.188
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.17
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.656
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: TREMURA NO 49
  type: MusicAlbum
  date published: 2024-11-08
album: CANAL 25
  type: MusicAlbum
  date published: 2025-02-17
album: EVERLASTING SUNSET
  type: MusicAlbum
  date published: 2025-05-02
album: ALGORYTHM
  type: MusicAlbum
  date published: 2025-10-10