Coffin Dance
type: MusicGroup
genre: polka
popularity: 9
followers: 192
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xff771ef13b52d61b693380aaebfa067a4e786dd3402d397c86357ede852163c3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eae98275-6866-483e-99fc-5ea6b6a2d608.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eae98275-6866-483e-99fc-5ea6b6a2d608.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/eae98275-6866-483e-99fc-5ea6b6a2d608
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xff771ef13b52d61b693380aaebfa067a4e786dd3402d397c86357ede852163c3","name":"Coffin Dance","registered_at":"2026-06-21T10:28:06Z","symbol":"NIM1898998","token_address":"0xd4e76808d6fba369fb65dcb2a508773001a97d50","type":"artist","uuid":"eae98275-6866-483e-99fc-5ea6b6a2d608"}
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 0xff771ef13b52d61b693380aaebfa067a4e786dd3402d397c86357ede852163c3. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eae98275-6866-483e-99fc-5ea6b6a2d608.json and https://artists.proofprofile.net/proofs/artist/eae98275-6866-483e-99fc-5ea6b6a2d608.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0xff771ef13b52d61b693380aaebfa067a4e786dd3402d397c86357ede852163c3","name":"Coffin Dance","registered_at":"2026-06-21T10:28:06Z","symbol":"NIM1898998","token_address":"0xd4e76808d6fba369fb65dcb2a508773001a97d50","type":"artist","uuid":"eae98275-6866-483e-99fc-5ea6b6a2d608"}
album: Coffin Dance Song (Butterfly)
  type: MusicAlbum
  date published: 2020-05-08
album: Coffin Dance Song
  type: MusicAlbum
  date published: 2020-05-08
album: Turkish Dance
  type: MusicAlbum
  date published: 2020-10-22
album: Coffin Dance (Paradise Mix)
  type: MusicAlbum
  date published: 2020-11-19
album: Ievan Polkka (Cat Vibing to Levan Polkka)
  type: MusicAlbum
  date published: 2021-01-27
  track: Ievan Polkka (Cat Vibing to Levan Polkka)
    type: MusicRecording
    duration: PT3M38S
    duration ms: 218880
    explicit: false
    by artist: Coffin Dance
    in album: Ievan Polkka (Cat Vibing to Levan Polkka)
      type: MusicAlbum
      date published: 2021-01-27
    genre: polka
    isrc code: QZFYZ2177390
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T14:30:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xeb6944da9ded8968cc8a1a7df13c6fdd2a5ef429267bd5350e7f47f675a0aa35
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYZ2177390
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0xeb6944da9ded8968cc8a1a7df13c6fdd2a5ef429267bd5350e7f47f675a0aa35. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZFYZ2177390.
      date published: 2026-07-05T01:12:41Z
    audio: Ievan Polkka (Cat Vibing to Levan Polkka)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.015
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.785
      additional property: Energy
        type: PropertyValue
        value: 0.605
      additional property: Speechiness
        type: PropertyValue
        value: 0.053
      additional property: Acousticness
        type: PropertyValue
        value: 0.007
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.056
      additional property: Liveness
        type: PropertyValue
        value: 0.141
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.476
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.522
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Bongo Cha Cha Cha (Radio Edit)
  type: MusicAlbum
  date published: 2021-09-17
album: Cat Playing on The Sofa
  type: MusicAlbum
  date published: 2024-08-27
album: The Fat Cat EP
  type: MusicAlbum
  date published: 2024-08-29
album: Legend of The Monkey King EP
  type: MusicAlbum
  date published: 2024-09-07
album: The Minecraft Pet Society EP
  type: MusicAlbum
  date published: 2024-09-09