Megumi Mesaku
type: MusicGroup
genre: rocksteady
popularity: 10
followers: 696
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcc0327f80c936061d673a0b63fd27ee9df39b677dbc7ed1c4f16dfff447f9f52
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954008
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954008
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/33d91b96-48cf-4067-b336-63fefbbd02cf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/33d91b96-48cf-4067-b336-63fefbbd02cf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/33d91b96-48cf-4067-b336-63fefbbd02cf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T21:31:27Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcc0327f80c936061d673a0b63fd27ee9df39b677dbc7ed1c4f16dfff447f9f52","name":"Megumi Mesaku","registered_at":"2026-06-16T07:34:13Z","symbol":"NIM0981858","token_address":"0xdad192a432da227fcc127b1489e837c520f147c3","type":"artist","uuid":"33d91b96-48cf-4067-b336-63fefbbd02cf"}
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 0xcc0327f80c936061d673a0b63fd27ee9df39b677dbc7ed1c4f16dfff447f9f52. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33d91b96-48cf-4067-b336-63fefbbd02cf.json and https://artists.proofprofile.net/proofs/artist/33d91b96-48cf-4067-b336-63fefbbd02cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0xcc0327f80c936061d673a0b63fd27ee9df39b677dbc7ed1c4f16dfff447f9f52","name":"Megumi Mesaku","registered_at":"2026-06-16T07:34:13Z","symbol":"NIM0981858","token_address":"0xdad192a432da227fcc127b1489e837c520f147c3","type":"artist","uuid":"33d91b96-48cf-4067-b336-63fefbbd02cf"}
album: A Saxy Reggae Christmas
  type: MusicAlbum
  date published: 2018-11-26
album: Saxy Rocksteady
  type: MusicAlbum
  date published: 2019-05-20
album: Saxy Cool Ruler
  type: MusicAlbum
  date published: 2020-10-20
  track: Front Door
    type: MusicRecording
    duration: PT3M57S
    duration ms: 237893
    explicit: false
    by artist: Megumi Mesaku
    in album: Saxy Cool Ruler
      type: MusicAlbum
      date published: 2020-10-20
    genre: rocksteady
    isrc code: TCAFD2079590
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T13:58:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4ecf277b90494a19bf3bd15cdaebd32a9063d29b170e34d028229e74cd617753
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958319
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958319
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFD2079590
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T22:08:47Z
    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 0x4ecf277b90494a19bf3bd15cdaebd32a9063d29b170e34d028229e74cd617753. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:08:47Z), 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/TCAFD2079590.
      date published: 2026-07-16T22:08:47Z
    audio: Front Door
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.02
      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: 0.861
      additional property: Energy
        type: PropertyValue
        value: 0.433
      additional property: Speechiness
        type: PropertyValue
        value: 0.059
      additional property: Acousticness
        type: PropertyValue
        value: 0.084
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.827
      additional property: Liveness
        type: PropertyValue
        value: 0.056
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.971
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.608
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: What a Sax
  type: MusicAlbum
  date published: 2022-07-18