Roberto Blades
type: MusicGroup
genre: salsa
description: Roberto Blades (born Roberto Bellido de Luna) is a Panamanian Salsa singer. His most popular songs are "Ya No Regreso Contigo", "Lagrimas", "Poquita Fe", "Casco", "Detalles", "El Artista Famoso", "Vic
popularity: 6
followers: 117
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2d596fafbf78afb9c906f0a37e43934f652ebe4a39887fce7281e2ba3ddbcaf9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a97902da-9c94-4b1d-9d59-58df45e52462.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a97902da-9c94-4b1d-9d59-58df45e52462.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a97902da-9c94-4b1d-9d59-58df45e52462
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2d596fafbf78afb9c906f0a37e43934f652ebe4a39887fce7281e2ba3ddbcaf9","name":"Roberto Blades","registered_at":"2026-06-20T08:58:34Z","symbol":"NIM1573237","token_address":"0x1930b5c443afe4faf55ded2a386114710a2b4677","type":"artist","uuid":"a97902da-9c94-4b1d-9d59-58df45e52462"}
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 0x2d596fafbf78afb9c906f0a37e43934f652ebe4a39887fce7281e2ba3ddbcaf9. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a97902da-9c94-4b1d-9d59-58df45e52462.json and https://artists.proofprofile.net/proofs/artist/a97902da-9c94-4b1d-9d59-58df45e52462.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x2d596fafbf78afb9c906f0a37e43934f652ebe4a39887fce7281e2ba3ddbcaf9","name":"Roberto Blades","registered_at":"2026-06-20T08:58:34Z","symbol":"NIM1573237","token_address":"0x1930b5c443afe4faf55ded2a386114710a2b4677","type":"artist","uuid":"a97902da-9c94-4b1d-9d59-58df45e52462"}
album: Lágrimas
  type: MusicAlbum
  date published: 2022-08-25
  track: Lágrimas
    type: MusicRecording
    duration: PT8M9S
    duration ms: 489720
    explicit: false
    by artist: Roberto Blades
    in album: Lágrimas
      type: MusicAlbum
      date published: 2022-08-25
    genre: salsa
    isrc code: QZNJZ2258272
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T22:50:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x624711431ee33a11520b19dbe8edb3507dd6d3c6dd5caf5e4d0524e31b8411ca
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957770
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957770
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2258272
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T23:17:00Z
    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 0x624711431ee33a11520b19dbe8edb3507dd6d3c6dd5caf5e4d0524e31b8411ca. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZNJZ2258272.
      date published: 2026-07-12T23:17:00Z
    audio: Lágrimas
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 101.363
      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: 0.471
      additional property: Energy
        type: PropertyValue
        value: 0.716
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.174
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.003
      additional property: Liveness
        type: PropertyValue
        value: 0.068
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.796
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.08
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Tempestad
  type: MusicAlbum
  date published: 2024-09-23