オトッペ歌唱部
type: MusicGroup
popularity: 4
followers: 720
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4ed1236d30a68d698cade6754545f55e6c5981d1d2ad123b51e42f5be5598ffa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f6ea77b1-ba95-4f65-8141-0dca756006a7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f6ea77b1-ba95-4f65-8141-0dca756006a7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f6ea77b1-ba95-4f65-8141-0dca756006a7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4ed1236d30a68d698cade6754545f55e6c5981d1d2ad123b51e42f5be5598ffa","name":"オトッペ歌唱部","registered_at":"2026-06-21T15:46:32Z","symbol":"NIM1959867","token_address":"0x550d615ea0269c1ef094987986b5566fc17f6258","type":"artist","uuid":"f6ea77b1-ba95-4f65-8141-0dca756006a7"}
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 0x4ed1236d30a68d698cade6754545f55e6c5981d1d2ad123b51e42f5be5598ffa. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6ea77b1-ba95-4f65-8141-0dca756006a7.json and https://artists.proofprofile.net/proofs/artist/f6ea77b1-ba95-4f65-8141-0dca756006a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x4ed1236d30a68d698cade6754545f55e6c5981d1d2ad123b51e42f5be5598ffa","name":"オトッペ歌唱部","registered_at":"2026-06-21T15:46:32Z","symbol":"NIM1959867","token_address":"0x550d615ea0269c1ef094987986b5566fc17f6258","type":"artist","uuid":"f6ea77b1-ba95-4f65-8141-0dca756006a7"}
album: 恋するなべぶぎょう（ＮＨＫ Ｅテレ『オトッペ』）
  type: MusicAlbum
  date published: 2017-11-14
album: 恋するなべぶぎょう（ＮＨＫ Ｅテレ『オトッペ』）
  type: MusicAlbum
  date published: 2019-11-12
  track: 恋するなべぶぎょう（ＮＨＫ Ｅテレ『オトッペ』）
    type: MusicRecording
    duration: PT2M53S
    duration ms: 173085
    explicit: false
    by artist: オトッペ歌唱部
    in album: 恋するなべぶぎょう（ＮＨＫ Ｅテレ『オトッペ』）
      type: MusicAlbum
      date published: 2019-11-12
    isrc code: TCJPG1725850
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T03:41:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4b51b9436f91e008acc26ccba8f141687e3fa242b8f3a044d38fe0b1670834d4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958238
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958238
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPG1725850
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T04:30:31Z
    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 0x4b51b9436f91e008acc26ccba8f141687e3fa242b8f3a044d38fe0b1670834d4. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/TCJPG1725850.
      date published: 2026-07-16T04:30:31Z
    audio: 恋するなべぶぎょう（ＮＨＫ Ｅテレ『オトッペ』）
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.974
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.639
      additional property: Energy
        type: PropertyValue
        value: 0.892
      additional property: Speechiness
        type: PropertyValue
        value: 0.046
      additional property: Acousticness
        type: PropertyValue
        value: 0.264
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.312
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.963
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.665
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major