Yasutaka Okada
type: MusicGroup
popularity: 13
followers: 43
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x57028b7a34974da94d1cec3ba0197ac346d4edf7c181ac49579c8480aec05a02
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953768
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953768
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c176ac10-8c4b-45f0-be4f-49de805e4806.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c176ac10-8c4b-45f0-be4f-49de805e4806.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c176ac10-8c4b-45f0-be4f-49de805e4806
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T09:30:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x57028b7a34974da94d1cec3ba0197ac346d4edf7c181ac49579c8480aec05a02","name":"Yasutaka Okada","registered_at":"2026-06-15T00:51:38Z","symbol":"NIM0630325","token_address":"0x9972bd5e05bd69d2401a583de80e900487b0a9b0","type":"artist","uuid":"c176ac10-8c4b-45f0-be4f-49de805e4806"}
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 0x57028b7a34974da94d1cec3ba0197ac346d4edf7c181ac49579c8480aec05a02. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c176ac10-8c4b-45f0-be4f-49de805e4806.json and https://artists.proofprofile.net/proofs/artist/c176ac10-8c4b-45f0-be4f-49de805e4806.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:30:06Z
  text: {"copyright_id":"0x57028b7a34974da94d1cec3ba0197ac346d4edf7c181ac49579c8480aec05a02","name":"Yasutaka Okada","registered_at":"2026-06-15T00:51:38Z","symbol":"NIM0630325","token_address":"0x9972bd5e05bd69d2401a583de80e900487b0a9b0","type":"artist","uuid":"c176ac10-8c4b-45f0-be4f-49de805e4806"}
album: birth
  type: MusicAlbum
  date published: 2024-05-10
album: 漂失
  type: MusicAlbum
  date published: 2025-02-05
  track: 漂失
    type: MusicRecording
    duration: PT5M45S
    duration ms: 345500
    explicit: false
    by artist: Yasutaka Okada
    in album: 漂失
      type: MusicAlbum
      date published: 2025-02-05
    isrc code: JPL542500045
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T23:57:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5fd338d4439d13a10ce3879ff91d8d302fd87f2f94c5814ed8c4b6e7000bc6dc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957779
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957779
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPL542500045
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T00:19:08Z
    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 0x5fd338d4439d13a10ce3879ff91d8d302fd87f2f94c5814ed8c4b6e7000bc6dc. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/JPL542500045.
      date published: 2026-07-13T00:19:08Z
    audio: 漂失
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 131.058
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.162
      additional property: Energy
        type: PropertyValue
        value: 0.275
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.694
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.116
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.03
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.664
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 水浸る場所 feat. kojikoji
  type: MusicAlbum
  date published: 2025-04-16
album: inside
  type: MusicAlbum
  date published: 2025-04-23
album: moku
  type: MusicAlbum
  date published: 2025-08-27
album: 足跡/trip
  type: MusicAlbum
  date published: 2025-10-10
album: trip
  type: MusicAlbum
  date published: 2025-10-10