Albert Marquès
type: MusicGroup
popularity: 5
followers: 381
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfcb5da6044d0f47526d6826491711402bc29c5d54eb1b8ea8118856b68e6e657
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/d524dd8a-77c8-4c84-b7c0-286c13110fd8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d524dd8a-77c8-4c84-b7c0-286c13110fd8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d524dd8a-77c8-4c84-b7c0-286c13110fd8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfcb5da6044d0f47526d6826491711402bc29c5d54eb1b8ea8118856b68e6e657","name":"Albert Marquès","registered_at":"2026-06-21T02:32:56Z","symbol":"NIM1792605","token_address":"0x87c812c5bbc276a0eed259da609301f1aa0ab4db","type":"artist","uuid":"d524dd8a-77c8-4c84-b7c0-286c13110fd8"}
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 0xfcb5da6044d0f47526d6826491711402bc29c5d54eb1b8ea8118856b68e6e657. 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/d524dd8a-77c8-4c84-b7c0-286c13110fd8.json and https://artists.proofprofile.net/proofs/artist/d524dd8a-77c8-4c84-b7c0-286c13110fd8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xfcb5da6044d0f47526d6826491711402bc29c5d54eb1b8ea8118856b68e6e657","name":"Albert Marquès","registered_at":"2026-06-21T02:32:56Z","symbol":"NIM1792605","token_address":"0x87c812c5bbc276a0eed259da609301f1aa0ab4db","type":"artist","uuid":"d524dd8a-77c8-4c84-b7c0-286c13110fd8"}
album: ¡Pa'lante!
  type: MusicAlbum
  date published: 2013
album: Bulería Brooklyniana
  type: MusicAlbum
  date published: 2018-07-26
album: Albert Marquès Trio ( Live in Madrid)
  type: MusicAlbum
  date published: 2020-04-24
album: Open Letter to Pablo Hasél
  type: MusicAlbum
  date published: 2024-02-12
  track: Open Letter to Pablo Hasél
    type: MusicRecording
    duration: PT3M51S
    duration ms: 231705
    explicit: false
    by artist: Albert Marquès
    in album: Open Letter to Pablo Hasél
      type: MusicAlbum
      date published: 2024-02-12
    isrc code: ESA092438132
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T22:35:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3a43ac2ec22db82941a6219977794f17384e39e79ffbcf35ba5eae0603fa131a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958793
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958793
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA092438132
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T22:59:45Z
    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 0x3a43ac2ec22db82941a6219977794f17384e39e79ffbcf35ba5eae0603fa131a. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/ESA092438132.
      date published: 2026-07-19T22:59:45Z
    audio: Open Letter to Pablo Hasél
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 80.71
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.541
      additional property: Energy
        type: PropertyValue
        value: 0.665
      additional property: Speechiness
        type: PropertyValue
        value: 0.46
      additional property: Acousticness
        type: PropertyValue
        value: 0.598
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.127
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.507
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.437
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Taking Our Breath Back (In memory of Eric Garner)
  type: MusicAlbum
  date published: 2024-07-17
album: EFÍMERO Free duets by Albert Marquès & Gonzalo del Val
  type: MusicAlbum
  date published: 2024-10-08
  track: Vilablareix 1
    type: MusicRecording
    duration: PT7M35S
    duration ms: 455226
    explicit: false
    by artist: Albert Marquès
    in album: EFÍMERO Free duets by Albert Marquès & Gonzalo del Val
      type: MusicAlbum
      date published: 2024-10-08
    isrc code: QZTBC2425198
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-31T13:51:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf3555f0be6d6e117124ded44c9b45a49c4bdb658192cc0aa379d967d9f2e6ccd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960418
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960418
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBC2425198
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-31T15:20:15Z
    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 0xf3555f0be6d6e117124ded44c9b45a49c4bdb658192cc0aa379d967d9f2e6ccd. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZTBC2425198.
      date published: 2026-07-31T15:20:15Z
    audio: Vilablareix 1
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.396
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.483
      additional property: Energy
        type: PropertyValue
        value: 0.328
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      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
album: Mir Zaynen Do
album: Gaza
album: The Kiss
album: Dialogue, Vol. 1

Acousticness
type: PropertyValue
value: 0.918

Instrumentalness
type: PropertyValue
value: 0.864

Liveness
type: PropertyValue
value: 0.119

Valence (Positivity)
type: PropertyValue
value: 0.258

Loudness (dB)
type: PropertyValue
value: -15.689

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Mir Zaynen Do
type: MusicAlbum
date published: 2025-01-27

Gaza
type: MusicAlbum
date published: 2025-10-17

The Kiss
type: MusicAlbum
date published: 2025-11-07

Dialogue, Vol. 1
type: MusicAlbum
date published: 2025-11-14