Laia Llach
type: MusicGroup
popularity: 2
followers: 300
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x47d8b591d3bb9711dc24747005922676596807730a26f6bbeddeaa9ea0562089
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bece2ad5-a8b2-4224-a2ff-5ce806bfe9cb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bece2ad5-a8b2-4224-a2ff-5ce806bfe9cb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bece2ad5-a8b2-4224-a2ff-5ce806bfe9cb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x47d8b591d3bb9711dc24747005922676596807730a26f6bbeddeaa9ea0562089","name":"Laia Llach","registered_at":"2026-06-20T18:31:10Z","symbol":"NIM1679790","token_address":"0x67f078b2404957f82f1344e85028a983467f28ed","type":"artist","uuid":"bece2ad5-a8b2-4224-a2ff-5ce806bfe9cb"}
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 0x47d8b591d3bb9711dc24747005922676596807730a26f6bbeddeaa9ea0562089. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bece2ad5-a8b2-4224-a2ff-5ce806bfe9cb.json and https://artists.proofprofile.net/proofs/artist/bece2ad5-a8b2-4224-a2ff-5ce806bfe9cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x47d8b591d3bb9711dc24747005922676596807730a26f6bbeddeaa9ea0562089","name":"Laia Llach","registered_at":"2026-06-20T18:31:10Z","symbol":"NIM1679790","token_address":"0x67f078b2404957f82f1344e85028a983467f28ed","type":"artist","uuid":"bece2ad5-a8b2-4224-a2ff-5ce806bfe9cb"}
album: Campelles
  type: MusicAlbum
  date published: 2022-09-23
album: Campelles
  type: MusicAlbum
  date published: 2022-09-23
album: Serà La Pluja
  type: MusicAlbum
  date published: 2022-11-21
album: Sol d'hivern
  type: MusicAlbum
  date published: 2022-12-16
track: Cercavila - Xs
  type: MusicRecording
  duration: PT3M48S
  duration ms: 228984
  explicit: false
  by artist: Cesk Freixas
  by artist: Laia Llach
  in album: XL
    type: MusicAlbum
    date published: 2020-02-07
  genre: cantautor
  genre: rock-catala
  genre: cantautor-catala
  genre: indie-catala
  isrc code: ES17D2000981
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T07:05:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe132e266068ea1f419055a96826b9b7cd2e8e1dc1ebeac5e0e491e3f2146300b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960368
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960368
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES17D2000981
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T08:26:41Z
  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 0xe132e266068ea1f419055a96826b9b7cd2e8e1dc1ebeac5e0e491e3f2146300b. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ES17D2000981.
    date published: 2026-07-31T08:26:41Z
  audio: Cercavila - Xs
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 133.318
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 6
    additional property: Danceability
      type: PropertyValue
      value: 0.581
    additional property: Energy
      type: PropertyValue
      value: 0.274
    additional property: Speechiness
      type: PropertyValue
      value: 0.051
    additional property: Acousticness
      type: PropertyValue
      value: 0.883
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.118
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.277
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.955
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major