Xâmma
type: MusicGroup
genre: axé
genre: pagode baiano
popularity: 5
followers: 171
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x59fdd173fa15edeebde4b1bca190d9f9ea018f4b85764668c1e2a3ba482d3763
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f1743485-fda5-4bf1-9249-f3e24eab0c8b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f1743485-fda5-4bf1-9249-f3e24eab0c8b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f1743485-fda5-4bf1-9249-f3e24eab0c8b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x59fdd173fa15edeebde4b1bca190d9f9ea018f4b85764668c1e2a3ba482d3763","name":"Xâmma","registered_at":"2026-06-21T13:08:52Z","symbol":"NIM1931745","token_address":"0x9948257af253a2ff8edd80f10b13f39910c289f7","type":"artist","uuid":"f1743485-fda5-4bf1-9249-f3e24eab0c8b"}
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 0x59fdd173fa15edeebde4b1bca190d9f9ea018f4b85764668c1e2a3ba482d3763. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f1743485-fda5-4bf1-9249-f3e24eab0c8b.json and https://artists.proofprofile.net/proofs/artist/f1743485-fda5-4bf1-9249-f3e24eab0c8b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x59fdd173fa15edeebde4b1bca190d9f9ea018f4b85764668c1e2a3ba482d3763","name":"Xâmma","registered_at":"2026-06-21T13:08:52Z","symbol":"NIM1931745","token_address":"0x9948257af253a2ff8edd80f10b13f39910c289f7","type":"artist","uuid":"f1743485-fda5-4bf1-9249-f3e24eab0c8b"}
album: Barco a Vela
  type: MusicAlbum
  date published: 2020-07-17
album: Quem Dera
  type: MusicAlbum
  date published: 2020-09-04
album: Joia do Verão
  type: MusicAlbum
  date published: 2020-09-11
album: Colorir Papel
  type: MusicAlbum
  date published: 2021
  track: Colorir Papel
    type: MusicRecording
    duration: PT2M43S
    duration ms: 163400
    explicit: false
    by artist: Xâmma
    in album: Colorir Papel
      type: MusicAlbum
      date published: 2021
    genre: axé
    genre: pagode baiano
    isrc code: BR5SS2300012
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T02:01:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa664c6018853a027f26b7a7087018b05ad1836e1026eacc239ecd729cfaf03f5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958955
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958955
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR5SS2300012
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T05:05:03Z
    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 0xa664c6018853a027f26b7a7087018b05ad1836e1026eacc239ecd729cfaf03f5. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:05:03Z), 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/BR5SS2300012.
      date published: 2026-07-21T05:05:03Z
    audio: Colorir Papel
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 107.933
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.797
      additional property: Energy
        type: PropertyValue
        value: 0.49
      additional property: Speechiness
        type: PropertyValue
        value: 0.06
      additional property: Acousticness
        type: PropertyValue
        value: 0.665
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.139
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.606
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.24
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Só Você
  type: MusicAlbum
  date published: 2021-03-26
album: Truque de Mestre
  type: MusicAlbum
  date published: 2021-06-03
album: Joia do Verão
  type: MusicAlbum
  date published: 2021-10-22
album: Imprevisível
  type: MusicAlbum
  date published: 2022-09-15
album: Ensaboado
  type: MusicAlbum
  date published: 2023-09-15
album: Na Madrugada
  type: MusicAlbum
  date published: 2023-10-13