Iwasaki Taku
type: MusicGroup
genre: anime
popularity: 32
followers: 974
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2f6afdf260a34f82b67fb00b1775f8e2637fb91610f8f5b510e4ed25ade549e1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/67fa25fd-4972-4a26-84e1-67a7375fe7c8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/67fa25fd-4972-4a26-84e1-67a7375fe7c8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/67fa25fd-4972-4a26-84e1-67a7375fe7c8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2f6afdf260a34f82b67fb00b1775f8e2637fb91610f8f5b510e4ed25ade549e1","name":"Iwasaki Taku","registered_at":"2026-06-11T23:25:44Z","symbol":"NIM0135939","token_address":"0x96917241cbe8b272e1d4dff3b05608375b68bd22","type":"artist","uuid":"67fa25fd-4972-4a26-84e1-67a7375fe7c8"}
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 0x2f6afdf260a34f82b67fb00b1775f8e2637fb91610f8f5b510e4ed25ade549e1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/67fa25fd-4972-4a26-84e1-67a7375fe7c8.json and https://artists.proofprofile.net/proofs/artist/67fa25fd-4972-4a26-84e1-67a7375fe7c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x2f6afdf260a34f82b67fb00b1775f8e2637fb91610f8f5b510e4ed25ade549e1","name":"Iwasaki Taku","registered_at":"2026-06-11T23:25:44Z","symbol":"NIM0135939","token_address":"0x96917241cbe8b272e1d4dff3b05608375b68bd22","type":"artist","uuid":"67fa25fd-4972-4a26-84e1-67a7375fe7c8"}
album: Libera Me from Hell Gurren Lagann
  type: MusicAlbum
  date published: 2024-04-22
album: Libera Me from Hell Gurren Lagann
  type: MusicAlbum
  date published: 2025-02-20
album: Libera Me from Hell - Instrumental
  type: MusicAlbum
  date published: 2025-04-07
  track: Libera Me from Hell - Instrumental
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217218
    explicit: false
    by artist: Iwasaki Taku
    in album: Libera Me from Hell - Instrumental
      type: MusicAlbum
      date published: 2025-04-07
    genre: anime
    isrc code: USHM22502114
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T17:38:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x22b25c9f8872104e0ca57a9b4f4a402d20dca7865b4700ba17243423ccfa289a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958594
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958594
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22502114
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T18:05:01Z
    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 0x22b25c9f8872104e0ca57a9b4f4a402d20dca7865b4700ba17243423ccfa289a. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/USHM22502114.
      date published: 2026-07-18T18:05:01Z
    audio: Libera Me from Hell - Instrumental
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.698
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.788
      additional property: Energy
        type: PropertyValue
        value: 0.797
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.151
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.779
      additional property: Liveness
        type: PropertyValue
        value: 0.566
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.844
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.255
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Rap is Man's Soul!
  type: MusicAlbum
  date published: 2025-09-21