はまちこちゃんねる
type: MusicGroup
popularity: 5
followers: 742
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb92a0fd4015b1fe005faf88a1d702b7bb3c73a4ce637d9824e4c7eb13eb8aabb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a87b0c77-2ccf-46c8-8e2b-299c78442699.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a87b0c77-2ccf-46c8-8e2b-299c78442699.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a87b0c77-2ccf-46c8-8e2b-299c78442699
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb92a0fd4015b1fe005faf88a1d702b7bb3c73a4ce637d9824e4c7eb13eb8aabb","name":"はまちこちゃんねる","registered_at":"2026-06-20T08:20:58Z","symbol":"NIM1564770","token_address":"0x91ea2a63ab0fe275d000bb2001efc90422e71493","type":"artist","uuid":"a87b0c77-2ccf-46c8-8e2b-299c78442699"}
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 0xb92a0fd4015b1fe005faf88a1d702b7bb3c73a4ce637d9824e4c7eb13eb8aabb. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a87b0c77-2ccf-46c8-8e2b-299c78442699.json and https://artists.proofprofile.net/proofs/artist/a87b0c77-2ccf-46c8-8e2b-299c78442699.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0xb92a0fd4015b1fe005faf88a1d702b7bb3c73a4ce637d9824e4c7eb13eb8aabb","name":"はまちこちゃんねる","registered_at":"2026-06-20T08:20:58Z","symbol":"NIM1564770","token_address":"0x91ea2a63ab0fe275d000bb2001efc90422e71493","type":"artist","uuid":"a87b0c77-2ccf-46c8-8e2b-299c78442699"}
album: Happy special day
  type: MusicAlbum
  date published: 2022-12-17
album: あほちこちゃん
  type: MusicAlbum
  date published: 2024-02-05
album: おまつりオーケストラ
  type: MusicAlbum
  date published: 2024-02-05
album: おさんぽ小町
  type: MusicAlbum
  date published: 2024-03-18
album: いたずらランデブー☆
  type: MusicAlbum
  date published: 2024-03-18
album: CHA CHA CHANCE
  type: MusicAlbum
  date published: 2024-11-18
album: Jumboooo!!
  type: MusicAlbum
  date published: 2025-03-22
  track: Jumboooo!!
    type: MusicRecording
    duration: PT3M41S
    duration ms: 221647
    explicit: false
    by artist: はまちこちゃんねる
    in album: Jumboooo!!
      type: MusicAlbum
      date published: 2025-03-22
    isrc code: JPY362100207
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T22:44:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x345dc5cb0852764d22c3b02bf00fd75307f25c19b3ea187a8f96f591cc987647
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958461
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958461
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPY362100207
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T23:18:11Z
    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 0x345dc5cb0852764d22c3b02bf00fd75307f25c19b3ea187a8f96f591cc987647. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPY362100207.
      date published: 2026-07-17T23:18:11Z
    audio: Jumboooo!!
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 169.99
      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: 0.712
      additional property: Energy
        type: PropertyValue
        value: 0.883
      additional property: Speechiness
        type: PropertyValue
        value: 0.052
      additional property: Acousticness
        type: PropertyValue
        value: 0.012
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.363
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.719
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.151
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 描くように、
  type: MusicAlbum
  date published: 2025-09-19