π
type: MusicGroup
popularity: 6
followers: 738
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa42cd71d1991d13edd3c293e2570eba1e6354f67c5e620cfb285f244a5099b4e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04cb0bc0-4eca-4658-85d2-cfa1e1f83290.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04cb0bc0-4eca-4658-85d2-cfa1e1f83290.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/04cb0bc0-4eca-4658-85d2-cfa1e1f83290
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa42cd71d1991d13edd3c293e2570eba1e6354f67c5e620cfb285f244a5099b4e","name":"π","registered_at":"2026-06-15T15:07:08Z","symbol":"NIM0746221","token_address":"0xc983ec3232bc086dc46bf69383f10dd54cc56fc3","type":"artist","uuid":"04cb0bc0-4eca-4658-85d2-cfa1e1f83290"}
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 0xa42cd71d1991d13edd3c293e2570eba1e6354f67c5e620cfb285f244a5099b4e. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04cb0bc0-4eca-4658-85d2-cfa1e1f83290.json and https://artists.proofprofile.net/proofs/artist/04cb0bc0-4eca-4658-85d2-cfa1e1f83290.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xa42cd71d1991d13edd3c293e2570eba1e6354f67c5e620cfb285f244a5099b4e","name":"π","registered_at":"2026-06-15T15:07:08Z","symbol":"NIM0746221","token_address":"0xc983ec3232bc086dc46bf69383f10dd54cc56fc3","type":"artist","uuid":"04cb0bc0-4eca-4658-85d2-cfa1e1f83290"}
album: 0rb / Eizo
  type: MusicAlbum
  date published: 2023-12-22
album: 0rb / 映像
  type: MusicAlbum
  date published: 2023-12-22
album: clarity
  type: MusicAlbum
  date published: 2024-03-14
album: clarity
  type: MusicAlbum
  date published: 2024-03-14
album: transcendent scales
  type: MusicAlbum
  date published: 2024-08-30
album: transcendent scales
  type: MusicAlbum
  date published: 2024-08-30
track: witch lemniscate

witch lemniscate
type: MusicRecording
duration: PT2M30S
duration ms: 150285
explicit: false
by artist: CVN
by artist: π
in album: xeno
  type: MusicAlbum
  date published: 2024-06-21
genre: japanese-experimental
isrc code: TCJPA2476858
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T22:58:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe642a429b2551e72b7ed553a677efa2dcccd1684bd7904807a6d0ba498460c27
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPA2476858
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe642a429b2551e72b7ed553a677efa2dcccd1684bd7904807a6d0ba498460c27. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCJPA2476858.
  date published: 2026-07-08T03:53:27Z
audio: witch lemniscate
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.386
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.79
  additional property: Energy
    type: PropertyValue
    value: 0.852
  additional property: Speechiness
    type: PropertyValue
    value: 0.117
  additional property: Acousticness
    type: PropertyValue
    value: 0.729
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.245
  additional property: Liveness
    type: PropertyValue
    value: 0.138
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.646
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.666
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor