dan policarpio
type: MusicGroup
popularity: 13
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb2ebb3dbf8afff862f43bbcaf50ae30a8893e914ba27d0c4e338ff2d11c5816f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953803
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953803
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e2e9841d-9b05-41f9-9039-8597f7a260e8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e2e9841d-9b05-41f9-9039-8597f7a260e8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e2e9841d-9b05-41f9-9039-8597f7a260e8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T15:41:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb2ebb3dbf8afff862f43bbcaf50ae30a8893e914ba27d0c4e338ff2d11c5816f","name":"dan policarpio","registered_at":"2026-06-15T04:21:59Z","symbol":"NIM0680560","token_address":"0x7f0d426104fcb6d7d912ed9424df256f0a4f9594","type":"artist","uuid":"e2e9841d-9b05-41f9-9039-8597f7a260e8"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ebb3dbf8afff862f43bbcaf50ae30a8893e914ba27d0c4e338ff2d11c5816f. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2e9841d-9b05-41f9-9039-8597f7a260e8.json and https://artists.proofprofile.net/proofs/artist/e2e9841d-9b05-41f9-9039-8597f7a260e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T19:59:56Z
  text: {"copyright_id":"0xb2ebb3dbf8afff862f43bbcaf50ae30a8893e914ba27d0c4e338ff2d11c5816f","name":"dan policarpio","registered_at":"2026-06-15T04:21:59Z","symbol":"NIM0680560","token_address":"0x7f0d426104fcb6d7d912ed9424df256f0a4f9594","type":"artist","uuid":"e2e9841d-9b05-41f9-9039-8597f7a260e8"}
album: Rumba Picante
  type: MusicAlbum
  date published: 2024-06-26
album: Master Timbal
  type: MusicAlbum
  date published: 2024-07-30
album: El Son del Caribe
  type: MusicAlbum
  date published: 2025-05-04
  track: Tierra de Mi Alma
    type: MusicRecording
    duration: PT4M0S
    duration ms: 240000
    explicit: false
    by artist: dan policarpio
    in album: El Son del Caribe
      type: MusicAlbum
      date published: 2025-05-04
    isrc code: GBMA22504671
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T08:21:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2a77de68ef828d830a7536a8cbf308e82fb62d4f0df7abe1ba97500c162dc4b1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMA22504671
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a77de68ef828d830a7536a8cbf308e82fb62d4f0df7abe1ba97500c162dc4b1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBMA22504671.
      date published: 2026-07-04T11:19:20Z
    audio: Tierra de Mi Alma
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 106.936
      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: 0.817
      additional property: Energy
        type: PropertyValue
        value: 0.678
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.092
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.076
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.933
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.302
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major