Samurai Sword
type: MusicGroup
popularity: 6
followers: 368
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd3ad2db29632e0dcae6a0fe6f3997bfead5312db2a226df78f88fcea510339d5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dd589a65-6630-4c35-abd8-4fc062625a16.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dd589a65-6630-4c35-abd8-4fc062625a16.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dd589a65-6630-4c35-abd8-4fc062625a16
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd3ad2db29632e0dcae6a0fe6f3997bfead5312db2a226df78f88fcea510339d5","name":"Samurai Sword","registered_at":"2026-06-21T05:35:30Z","symbol":"NIM1832018","token_address":"0x51bb9e7319540292515870545d2950adae7a2f53","type":"artist","uuid":"dd589a65-6630-4c35-abd8-4fc062625a16"}
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 0xd3ad2db29632e0dcae6a0fe6f3997bfead5312db2a226df78f88fcea510339d5. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd589a65-6630-4c35-abd8-4fc062625a16.json and https://artists.proofprofile.net/proofs/artist/dd589a65-6630-4c35-abd8-4fc062625a16.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xd3ad2db29632e0dcae6a0fe6f3997bfead5312db2a226df78f88fcea510339d5","name":"Samurai Sword","registered_at":"2026-06-21T05:35:30Z","symbol":"NIM1832018","token_address":"0x51bb9e7319540292515870545d2950adae7a2f53","type":"artist","uuid":"dd589a65-6630-4c35-abd8-4fc062625a16"}
album: Good Night, Whatever That Is
  type: MusicAlbum
  date published: 2017-03-17
  track: Good Night, Whatever That Is
    type: MusicRecording
    duration: PT2M12S
    duration ms: 132027
    explicit: false
    by artist: Samurai Sword
    in album: Good Night, Whatever That Is
      type: MusicAlbum
      date published: 2017-03-17
    isrc code: QZTB72309569
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T15:56:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4a156488334facf51af63668f38cef8c50c775945412f4fd34e930b6c5031232
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958176
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958176
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB72309569
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T18:59:58Z
    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 0x4a156488334facf51af63668f38cef8c50c775945412f4fd34e930b6c5031232. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:59:58Z), 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/QZTB72309569.
      date published: 2026-07-15T18:59:58Z
    audio: Good Night, Whatever That Is
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 200.285
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.45
      additional property: Energy
        type: PropertyValue
        value: 0.311
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.417
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.881
      additional property: Liveness
        type: PropertyValue
        value: 0.107
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.212
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.551
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Phone
  type: MusicAlbum
  date published: 2017-03-17
album: Thank You
  type: MusicAlbum
  date published: 2017-04-20
album: Thank You
  type: MusicAlbum
  date published: 2017-04-20
album: Journals 1-4
  type: MusicAlbum
  date published: 2019-09-10
album: Journals 1-4
  type: MusicAlbum
  date published: 2019-09-18