Xandú
type: MusicGroup
popularity: 3
followers: 261
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e50b5aed6373cf33d1246a81ec8f72980e5ea8dc8731bb2a85bd20526015ac5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954058
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954058
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/44c060ee-3c22-4e3c-b18f-5ce39b987d49.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/44c060ee-3c22-4e3c-b18f-5ce39b987d49.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/44c060ee-3c22-4e3c-b18f-5ce39b987d49
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T06:34:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8e50b5aed6373cf33d1246a81ec8f72980e5ea8dc8731bb2a85bd20526015ac5","name":"Xandú","registered_at":"2026-06-16T13:52:10Z","symbol":"NIM1072034","token_address":"0xa5b67fedfcadf5e5854e72beac85fe15e90da117","type":"artist","uuid":"44c060ee-3c22-4e3c-b18f-5ce39b987d49"}
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 0x8e50b5aed6373cf33d1246a81ec8f72980e5ea8dc8731bb2a85bd20526015ac5. Chain 2 (Bitcoin): anchored in block 954058 (2026-06-17T06:34:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44c060ee-3c22-4e3c-b18f-5ce39b987d49.json and https://artists.proofprofile.net/proofs/artist/44c060ee-3c22-4e3c-b18f-5ce39b987d49.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T06:34:31Z
  text: {"copyright_id":"0x8e50b5aed6373cf33d1246a81ec8f72980e5ea8dc8731bb2a85bd20526015ac5","name":"Xandú","registered_at":"2026-06-16T13:52:10Z","symbol":"NIM1072034","token_address":"0xa5b67fedfcadf5e5854e72beac85fe15e90da117","type":"artist","uuid":"44c060ee-3c22-4e3c-b18f-5ce39b987d49"}
album: Eternal Lockdown
  type: MusicAlbum
  date published: 2020-12-03
album: Do Barro Ao Ouro
  type: MusicAlbum
  date published: 2021-03-05
album: Mais Ninguém
  type: MusicAlbum
  date published: 2021-11-15
album: Vive Agora
  type: MusicAlbum
  date published: 2023-01-27
album: Sobre a Dor
  type: MusicAlbum
  date published: 2023-07-21
album: Sem Pressa
  type: MusicAlbum
  date published: 2023-10-20
album: Luz Neon
  type: MusicAlbum
  date published: 2024-09-27
  track: Luz Neon
    type: MusicRecording
    duration: PT3M24S
    duration ms: 204466
    explicit: false
    by artist: Xandú
    in album: Luz Neon
      type: MusicAlbum
      date published: 2024-09-27
    isrc code: QZTPX2466526
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T05:49:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb8e534bb98da309d100bda3bbf96d2faaea4d84c285870dd40824fecb0890c4f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958838
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958838
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTPX2466526
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T07:01:21Z
    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 0xb8e534bb98da309d100bda3bbf96d2faaea4d84c285870dd40824fecb0890c4f. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTPX2466526 — a six-check JSON result.
      date published: 2026-07-20T07:01:21Z
    audio: Luz Neon
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 102.995
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.661
      additional property: Energy
        type: PropertyValue
        value: 0.569
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.357
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.011
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.468
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.433
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Tudo Cinza
  type: MusicAlbum
  date published: 2024-12-20
album: Planos
  type: MusicAlbum
  date published: 2025-07-18
album: Palavras Cortam
  type: MusicAlbum
  date published: 2025-08-08
  track: Palavras Cortam
    type: MusicRecording
    duration: PT4M5S
    duration ms: 245185
    explicit: false
    by artist: Xandú
    in album: Palavras Cortam
      type: MusicAlbum
      date published: 2025-08-08
    isrc code: GXHAF2552899
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T12:36:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc721de530ff8cd9e81de945c6701c592eb490f69b9b92b2f39a504f74ecddd78
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958885
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958885
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXHAF2552899
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T13:01:04Z
    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 0xc721de530ff8cd9e81de945c6701c592eb490f69b9b92b2f39a504f74ecddd78. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXHAF2552899 — a six-check JSON result.
      date published: 2026-07-20T13:01:04Z
    audio: Palavras Cortam
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 145.998
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.547

Energy
type: PropertyValue
value: 0.282

Speechiness
type: PropertyValue
value: 0.052

Acousticness
type: PropertyValue
value: 0.808

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.256

Valence (Positivity)
type: PropertyValue
value: 0.25

Loudness (dB)
type: PropertyValue
value: -13.444

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Minor