ウォーターチャレンジ
type: MusicGroup
popularity: 4
followers: 2844
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa51f96ced34816b2628ea1f39e91ead8aad456c3c1dd00a65729e73e961356df
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954573
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954573
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b41ec654-b019-44c7-bc06-116d7834b944.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b41ec654-b019-44c7-bc06-116d7834b944.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b41ec654-b019-44c7-bc06-116d7834b944
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T15:45:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa51f96ced34816b2628ea1f39e91ead8aad456c3c1dd00a65729e73e961356df","name":"ウォーターチャレンジ","registered_at":"2026-06-20T13:50:02Z","symbol":"NIM1624954","token_address":"0x68be16cfe5270a479ef6f2393096c7646868c7de","type":"artist","uuid":"b41ec654-b019-44c7-bc06-116d7834b944"}
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 0xa51f96ced34816b2628ea1f39e91ead8aad456c3c1dd00a65729e73e961356df. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b41ec654-b019-44c7-bc06-116d7834b944.json and https://artists.proofprofile.net/proofs/artist/b41ec654-b019-44c7-bc06-116d7834b944.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T15:45:29Z
  text: {"copyright_id":"0xa51f96ced34816b2628ea1f39e91ead8aad456c3c1dd00a65729e73e961356df","name":"ウォーターチャレンジ","registered_at":"2026-06-20T13:50:02Z","symbol":"NIM1624954","token_address":"0x68be16cfe5270a479ef6f2393096c7646868c7de","type":"artist","uuid":"b41ec654-b019-44c7-bc06-116d7834b944"}
album: Neverending Challenge
  type: MusicAlbum
  date published: 2022-12-20
album: Fighting Fist
  type: MusicAlbum
  date published: 2023-04-28
album: Challenge Changer
  type: MusicAlbum
  date published: 2023-11-30
album: コミカルチャレンジ
  type: MusicAlbum
  date published: 2024-03-18
  track: コミカルチャレンジ
    type: MusicRecording
    duration: PT1M13S
    duration ms: 73161
    explicit: false
    by artist: ウォーターチャレンジ
    in album: コミカルチャレンジ
      type: MusicAlbum
      date published: 2024-03-18
    isrc code: JP92N2412756
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T15:50:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x48601afca98b417409e5a86ea0e7d2bb1015d0533d3cdc4d36be9c24940d280d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956560
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956560
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2412756
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T23:28:02Z
    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 0x48601afca98b417409e5a86ea0e7d2bb1015d0533d3cdc4d36be9c24940d280d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JP92N2412756.
      date published: 2026-07-03T23:28:02Z
    audio: コミカルチャレンジ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 155.036
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.644
      additional property: Energy
        type: PropertyValue
        value: 0.952
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.208
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.327
      additional property: Liveness
        type: PropertyValue
        value: 0.22
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.99
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.265
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor