Lees y Feer
type: MusicGroup
popularity: 26
followers: 4999
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x885cc58d1b8d27ed9ba2429e7af3d88f2694924de0b7ff73bafa82c80b01b933
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4d83bca1-53b6-478c-99b5-ee8b373206ad.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4d83bca1-53b6-478c-99b5-ee8b373206ad.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4d83bca1-53b6-478c-99b5-ee8b373206ad
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x885cc58d1b8d27ed9ba2429e7af3d88f2694924de0b7ff73bafa82c80b01b933","name":"Lees y Feer","registered_at":"2026-06-11T19:25:43Z","symbol":"NIM0099573","token_address":"0xaf5ec4d9103632ee8718ca2246e98a48d08cfb4c","type":"artist","uuid":"4d83bca1-53b6-478c-99b5-ee8b373206ad"}
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 0x885cc58d1b8d27ed9ba2429e7af3d88f2694924de0b7ff73bafa82c80b01b933. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4d83bca1-53b6-478c-99b5-ee8b373206ad.json and https://artists.proofprofile.net/proofs/artist/4d83bca1-53b6-478c-99b5-ee8b373206ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x885cc58d1b8d27ed9ba2429e7af3d88f2694924de0b7ff73bafa82c80b01b933","name":"Lees y Feer","registered_at":"2026-06-11T19:25:43Z","symbol":"NIM0099573","token_address":"0xaf5ec4d9103632ee8718ca2246e98a48d08cfb4c","type":"artist","uuid":"4d83bca1-53b6-478c-99b5-ee8b373206ad"}
album: Y Que No y Que Tal
  type: MusicAlbum
  date published: 2018-12-02
album: Y Que No y Que Tal
  type: MusicAlbum
  date published: 2018-12-03
album: En el Oscurito
  type: MusicAlbum
  date published: 2020-04-03
album: En el Oscurito
  type: MusicAlbum
  date published: 2020-04-03
album: Traicionera (Acústico)
  type: MusicAlbum
  date published: 2020-04-17
album: Traicionera (Acústico)
  type: MusicAlbum
  date published: 2020-04-17
album: Y Que No y Que Tal
  type: MusicAlbum
  date published: 2020-05-19
album: Y Que No y Que Tal
  type: MusicAlbum
  date published: 2020-05-19
album: Y Que No y Que Tal
  type: MusicAlbum
  date published: 2020-05-19
album: Traicionera
  type: MusicAlbum
  date published: 2020-05-21
album: Traicionera
  type: MusicAlbum
  date published: 2020-05-21
album: Nuestros Éxitos
  type: MusicAlbum
  date published: 2020-06-26
album: Por Esa Canción
  type: MusicAlbum
  date published: 2020-06-26
album: Turca
  type: MusicAlbum
  date published: 2020-07-24
album: Turca
  type: MusicAlbum
  date published: 2020-07-24
album: Y Que No y Que Tal 2.0
  type: MusicAlbum
  date published: 2021-01-15
album: Y Que No y Que Tal 2.0
  type: MusicAlbum
  date published: 2021-01-15
album: Romantico
  type: MusicAlbum
  date published: 2021-02-05
album: Romantico
  type: MusicAlbum
  date published: 2021-02-05
album: Un Shot
  type: MusicAlbum
  date published: 2022-02-11
album: Un Shot
  type: MusicAlbum
  date published: 2022-02-11
  track: Un Shot
    type: MusicRecording
    duration: PT2M47S
    duration ms: 167058
    explicit: false
    by artist: Lees y Feer
    in album: Un Shot
      type: MusicAlbum
      date published: 2022-02-11
    isrc code: ESA012225254
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T20:24:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xeb06ba8f0625bd4b880bae60663086104f7ffa5e3f0bbd2b60d1f60fbeaa232d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958931
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958931
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA012225254
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T21:15:01Z
    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 0xeb06ba8f0625bd4b880bae60663086104f7ffa5e3f0bbd2b60d1f60fbeaa232d. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ESA012225254.
      date published: 2026-07-20T21:15:01Z
    audio: Un Shot
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 102.001
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.907
      additional property: Energy
        type: PropertyValue
        value: 0.668
      additional property: Speechiness
        type: PropertyValue
        value: 0.268
      additional property: Acousticness
        type: PropertyValue
        value: 0.183
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.106
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.873
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.412
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: En las Nubes
  type: MusicAlbum
  date published: 2022-12-02