Jacob Tanaka
type: MusicGroup
popularity: 5
followers: 197
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfc85047a9e41505c6fac96cd60c05398aae7e48b80316d2e2c9ab6dbaefd23f7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9a8f353e-723b-416a-aace-e7e4521bcfb5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9a8f353e-723b-416a-aace-e7e4521bcfb5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9a8f353e-723b-416a-aace-e7e4521bcfb5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfc85047a9e41505c6fac96cd60c05398aae7e48b80316d2e2c9ab6dbaefd23f7","name":"Jacob Tanaka","registered_at":"2026-06-17T19:32:49Z","symbol":"NIM1496789","token_address":"0x057ac33a23ca83250e996730b9a6de71608a222d","type":"artist","uuid":"9a8f353e-723b-416a-aace-e7e4521bcfb5"}
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 0xfc85047a9e41505c6fac96cd60c05398aae7e48b80316d2e2c9ab6dbaefd23f7. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9a8f353e-723b-416a-aace-e7e4521bcfb5.json and https://artists.proofprofile.net/proofs/artist/9a8f353e-723b-416a-aace-e7e4521bcfb5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xfc85047a9e41505c6fac96cd60c05398aae7e48b80316d2e2c9ab6dbaefd23f7","name":"Jacob Tanaka","registered_at":"2026-06-17T19:32:49Z","symbol":"NIM1496789","token_address":"0x057ac33a23ca83250e996730b9a6de71608a222d","type":"artist","uuid":"9a8f353e-723b-416a-aace-e7e4521bcfb5"}
album: Oyu no Naka no Knife
  type: MusicAlbum
  date published: 2018-06-06
  track: b.o.m.3
    type: MusicRecording
    duration: PT3M10S
    duration ms: 190506
    explicit: false
    by artist: Jacob Tanaka
    in album: Oyu no Naka no Knife
      type: MusicAlbum
      date published: 2018-06-06
    isrc code: JPV501800248
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf26b7b6a2e65d47a2051095dcd8460e362fa1d6d3fa3a636a51282be870b789e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958708
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958708
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPV501800248
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T09:08:25Z
    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 0xf26b7b6a2e65d47a2051095dcd8460e362fa1d6d3fa3a636a51282be870b789e. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/JPV501800248.
      date published: 2026-07-19T09:08:25Z
    audio: b.o.m.3
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.988
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.72
      additional property: Energy
        type: PropertyValue
        value: 0.767
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.433
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.03
      additional property: Liveness
        type: PropertyValue
        value: 0.085
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.643
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.884
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: THE FOG
  type: MusicAlbum
  date published: 2019-06-26