Masao Masu
type: MusicGroup
genre: lullaby
popularity: 4
followers: 68
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x35fa0ad9815b31512832102f39c63e0b8011965720d402a97dc5a35268058328
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953958
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953958
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/269018ac-919b-4e77-bd4c-5d6cf559028f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/269018ac-919b-4e77-bd4c-5d6cf559028f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/269018ac-919b-4e77-bd4c-5d6cf559028f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T14:52:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x35fa0ad9815b31512832102f39c63e0b8011965720d402a97dc5a35268058328","name":"Masao Masu","registered_at":"2026-06-16T03:03:37Z","symbol":"NIM0917233","token_address":"0x25856a7ff086f677a1c95dc75e315ec6e2cc6da6","type":"artist","uuid":"269018ac-919b-4e77-bd4c-5d6cf559028f"}
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 0x35fa0ad9815b31512832102f39c63e0b8011965720d402a97dc5a35268058328. Chain 2 (Bitcoin): anchored in block 953959 (2026-06-16T14:51:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/269018ac-919b-4e77-bd4c-5d6cf559028f.json and https://artists.proofprofile.net/proofs/artist/269018ac-919b-4e77-bd4c-5d6cf559028f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T14:51:55Z
  text: {"copyright_id":"0x35fa0ad9815b31512832102f39c63e0b8011965720d402a97dc5a35268058328","name":"Masao Masu","registered_at":"2026-06-16T03:03:37Z","symbol":"NIM0917233","token_address":"0x25856a7ff086f677a1c95dc75e315ec6e2cc6da6","type":"artist","uuid":"269018ac-919b-4e77-bd4c-5d6cf559028f"}
album: Lôbâ
  type: MusicAlbum
  date published: 2022-11-18
album: Lôba (Club Mix)
  type: MusicAlbum
  date published: 2024-04-05
album: Lôbâ (Reggae Mix)
  type: MusicAlbum
  date published: 2024-11-29
  track: Lôbâ - Reggae Mix
    type: MusicRecording
    duration: PT3M41S
    duration ms: 221359
    explicit: false
    by artist: Masao Masu
    in album: Lôbâ (Reggae Mix)
      type: MusicAlbum
      date published: 2024-11-29
    genre: lullaby
    isrc code: FR9W12436718
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T16:10:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf31d8991bf2ad2346994a17814c1a8e11b010b369f6e8ea27c3f52f614ca02d5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956728
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956728
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12436718
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:43:49Z
    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 0xf31d8991bf2ad2346994a17814c1a8e11b010b369f6e8ea27c3f52f614ca02d5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR9W12436718.
      date published: 2026-07-05T01:43:49Z
    audio: Lôbâ - Reggae Mix
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.001
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.778
      additional property: Energy
        type: PropertyValue
        value: 0.687
      additional property: Speechiness
        type: PropertyValue
        value: 0.068
      additional property: Acousticness
        type: PropertyValue
        value: 0.148
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.334
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.828
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.931
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major