João Chora
type: MusicGroup
genre: fado
popularity: 6
followers: 333
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0d44a114606f8ed3498d04d66ae8fb876ac638fd3c294946504e7941c78bead8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04dc0db6-c45a-4c0e-af98-77eeddb9438e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04dc0db6-c45a-4c0e-af98-77eeddb9438e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/04dc0db6-c45a-4c0e-af98-77eeddb9438e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0d44a114606f8ed3498d04d66ae8fb876ac638fd3c294946504e7941c78bead8","name":"João Chora","registered_at":"2026-06-15T15:17:11Z","symbol":"NIM0748622","token_address":"0x7a32c8b8500009c5e646b262e32151ee14de28c2","type":"artist","uuid":"04dc0db6-c45a-4c0e-af98-77eeddb9438e"}
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 0x0d44a114606f8ed3498d04d66ae8fb876ac638fd3c294946504e7941c78bead8. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04dc0db6-c45a-4c0e-af98-77eeddb9438e.json and https://artists.proofprofile.net/proofs/artist/04dc0db6-c45a-4c0e-af98-77eeddb9438e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T00:30:31Z
  text: {"copyright_id":"0x0d44a114606f8ed3498d04d66ae8fb876ac638fd3c294946504e7941c78bead8","name":"João Chora","registered_at":"2026-06-15T15:17:11Z","symbol":"NIM0748622","token_address":"0x7a32c8b8500009c5e646b262e32151ee14de28c2","type":"artist","uuid":"04dc0db6-c45a-4c0e-af98-77eeddb9438e"}
album: João Chora
  type: MusicAlbum
  date published: 1996
album: João Chora
  type: MusicAlbum
  date published: 1996-01-01
album: João Chora
  type: MusicAlbum
  date published: 1999
album: João Chora
  type: MusicAlbum
  date published: 1999-01-01
album: João Chora ao Vivo na Chamusca
  type: MusicAlbum
  date published: 2001
album: João Chora ao Vivo na Chamusca (Ao Vivo na Chamusca)
  type: MusicAlbum
  date published: 2001-01-01
album: Alma em Tom Maior
  type: MusicAlbum
  date published: 2006
album: Alma em Tom Maior
  type: MusicAlbum
  date published: 2006-01-01
album: 25 Anos 25 Fados
  type: MusicAlbum
  date published: 2012
album: Aromas de Fado
  type: MusicAlbum
  date published: 2017-10-27
  track: Canção do Ribatejo
    type: MusicRecording
    duration: PT1M58S
    duration ms: 118173
    explicit: false
    by artist: João Chora
    in album: Aromas de Fado
      type: MusicAlbum
      date published: 2017-10-27
    genre: fado
    isrc code: FRX201734342
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T16:46:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd203653edd46b8c46ea490b32061e478d6565ed3441fb36d7d4e030a7811f205
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX201734342
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0xd203653edd46b8c46ea490b32061e478d6565ed3441fb36d7d4e030a7811f205. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRX201734342.
      date published: 2026-07-05T01:12:41Z
    audio: Canção do Ribatejo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 92.267
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.731
      additional property: Energy
        type: PropertyValue
        value: 0.464
      additional property: Speechiness
        type: PropertyValue
        value: 0.05
      additional property: Acousticness
        type: PropertyValue
        value: 0.923
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.244
      additional property: Liveness
        type: PropertyValue
        value: 0.073
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.896
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.949
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Aromas de Fado
  type: MusicAlbum
  date published: 2017-10-27
album: Roda Da VIda
  type: MusicAlbum
  date published: 2023-10-01
album: Cantigas
  type: MusicAlbum
  date published: 2025-10-17