Opció K95
type: MusicGroup
popularity: 3
followers: 1410
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x36a75470d9ef89fd5b569320915c7354bc5415ad9cd0ccb64eace9b6972d8a03
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/256dad10-23fd-4b43-b5fc-c2d7162cb255.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/256dad10-23fd-4b43-b5fc-c2d7162cb255.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/256dad10-23fd-4b43-b5fc-c2d7162cb255
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x36a75470d9ef89fd5b569320915c7354bc5415ad9cd0ccb64eace9b6972d8a03","name":"Opció K95","registered_at":"2026-06-16T02:52:25Z","symbol":"NIM0914554","token_address":"0x2a35a0d5f02e649ec3d10ead0a8d85d80e0e1477","type":"artist","uuid":"256dad10-23fd-4b43-b5fc-c2d7162cb255"}
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 0x36a75470d9ef89fd5b569320915c7354bc5415ad9cd0ccb64eace9b6972d8a03. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/256dad10-23fd-4b43-b5fc-c2d7162cb255.json and https://artists.proofprofile.net/proofs/artist/256dad10-23fd-4b43-b5fc-c2d7162cb255.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x36a75470d9ef89fd5b569320915c7354bc5415ad9cd0ccb64eace9b6972d8a03","name":"Opció K95","registered_at":"2026-06-16T02:52:25Z","symbol":"NIM0914554","token_address":"0x2a35a0d5f02e649ec3d10ead0a8d85d80e0e1477","type":"artist","uuid":"256dad10-23fd-4b43-b5fc-c2d7162cb255"}
album: Cap Oportunitat
  type: MusicAlbum
  date published: 1996
album: Mai Morirem
  type: MusicAlbum
  date published: 2000
album: Terra Quemada
  type: MusicAlbum
  date published: 2004
album: Reneix
  type: MusicAlbum
  date published: 2010
track: Per lo legal
  type: MusicRecording
  duration: PT2M35S
  duration ms: 155573
  explicit: false
  by artist: Opció K95
  in album: Embolingats - Homenatge a Skatalà
    type: MusicAlbum
    date published: 2010-03-22
  isrc code: ES14A1001462
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T00:37:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcf2bf39bda9ce90e659841157b0e71c3dfb70c0ee50fbc70035b79f4f7689466
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960494
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960494
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES14A1001462
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T01:44:32Z
  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 0xcf2bf39bda9ce90e659841157b0e71c3dfb70c0ee50fbc70035b79f4f7689466. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ES14A1001462 — a six-check JSON result.
    date published: 2026-08-01T01:44:32Z
  audio: Per lo legal
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 107.802
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.231
    additional property: Energy
      type: PropertyValue
      value: 0.994
    additional property: Speechiness
      type: PropertyValue
      value: 0.23
    additional property: Acousticness
      type: PropertyValue
      value: 0.034
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.183
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.274
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.154
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major