Riça
type: MusicGroup
genre: portuguese hip hop
popularity: 4
followers: 460
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdfb328cddb954a8b4e1d14225bf553af7c2f3090d9283fa13af020518842515e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/480cfee9-7773-4a3c-bb4f-5216cdb32e93.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/480cfee9-7773-4a3c-bb4f-5216cdb32e93.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/480cfee9-7773-4a3c-bb4f-5216cdb32e93
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdfb328cddb954a8b4e1d14225bf553af7c2f3090d9283fa13af020518842515e","name":"Riça","registered_at":"2026-06-16T15:00:36Z","symbol":"NIM1088363","token_address":"0xb2c5a45ca629ba027d9af4e6ba675f7c9b26de9d","type":"artist","uuid":"480cfee9-7773-4a3c-bb4f-5216cdb32e93"}
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 0xdfb328cddb954a8b4e1d14225bf553af7c2f3090d9283fa13af020518842515e. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/480cfee9-7773-4a3c-bb4f-5216cdb32e93.json and https://artists.proofprofile.net/proofs/artist/480cfee9-7773-4a3c-bb4f-5216cdb32e93.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xdfb328cddb954a8b4e1d14225bf553af7c2f3090d9283fa13af020518842515e","name":"Riça","registered_at":"2026-06-16T15:00:36Z","symbol":"NIM1088363","token_address":"0xb2c5a45ca629ba027d9af4e6ba675f7c9b26de9d","type":"artist","uuid":"480cfee9-7773-4a3c-bb4f-5216cdb32e93"}
album: Bicho Com Mau Gosto
  type: MusicAlbum
  date published: 2016-11-27
album: Dragão IV
  type: MusicAlbum
  date published: 2019-09-13
album: Napoleão Precário
  type: MusicAlbum
  date published: 2020-04-10
album: Canção das Maias
  type: MusicAlbum
  date published: 2023-05-12
album: Diabos m' Elevem
  type: MusicAlbum
  date published: 2023-09-14
album: No Ar (Ao Vivo na Antena 3)
  type: MusicAlbum
  date published: 2025-09-15
track: Lobotomia
  type: MusicRecording
  duration: PT2M56S
  duration ms: 176551
  explicit: false
  by artist: Keso
  by artist: Riça
  in album: Sinceramente Porto
    type: MusicAlbum
    date published: 2020-07-03
  isrc code: ES71G2031436
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T11:38:43+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd0153d1b3e10f549472206062a2a6789ba9256cc19a90ad7dc3d629c2b0f9725
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960254
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960254
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2031436
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T12:06:10Z
  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 0xd0153d1b3e10f549472206062a2a6789ba9256cc19a90ad7dc3d629c2b0f9725. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ES71G2031436.
    date published: 2026-07-30T12:06:10Z
  audio: Lobotomia
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 109.218
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.774
    additional property: Energy
      type: PropertyValue
      value: 0.541
    additional property: Speechiness
      type: PropertyValue
      value: 0.271
    additional property: Acousticness
      type: PropertyValue
      value: 0.205
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.12
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.537
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.586
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor