A$AP Tuerknauf
type: MusicGroup
genre: anime rap
genre: meme rap
popularity: 5
followers: 801
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb741502a86a044d45cf2c2c21d3ec773f1bc77e97cdb6eb2c70a0063a280ae16
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aed7e38f-3294-4a90-8502-de639ed41530.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aed7e38f-3294-4a90-8502-de639ed41530.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/aed7e38f-3294-4a90-8502-de639ed41530
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb741502a86a044d45cf2c2c21d3ec773f1bc77e97cdb6eb2c70a0063a280ae16","name":"A$AP Tuerknauf","registered_at":"2026-06-20T11:44:01Z","symbol":"NIM1603838","token_address":"0x0ebac3e6914d2e251354309163225bb03608931c","type":"artist","uuid":"aed7e38f-3294-4a90-8502-de639ed41530"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb741502a86a044d45cf2c2c21d3ec773f1bc77e97cdb6eb2c70a0063a280ae16. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aed7e38f-3294-4a90-8502-de639ed41530.json and https://artists.proofprofile.net/proofs/artist/aed7e38f-3294-4a90-8502-de639ed41530.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xb741502a86a044d45cf2c2c21d3ec773f1bc77e97cdb6eb2c70a0063a280ae16","name":"A$AP Tuerknauf","registered_at":"2026-06-20T11:44:01Z","symbol":"NIM1603838","token_address":"0x0ebac3e6914d2e251354309163225bb03608931c","type":"artist","uuid":"aed7e38f-3294-4a90-8502-de639ed41530"}
album: Megumin
  type: MusicAlbum
  date published: 2021-03-22
  track: Megumin
    type: MusicRecording
    duration: PT2M0S
    duration ms: 120218
    explicit: true
    by artist: A$AP Tuerknauf
    in album: Megumin
      type: MusicAlbum
      date published: 2021-03-22
    genre: anime rap
    genre: meme rap
    isrc code: QM42K2136030
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T14:05:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfb2ab61fcb9144f067cf1abe930dd5cb6854d262a5c77a46fe123d4854884097
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958897
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958897
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM42K2136030
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T14:57:46Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2ab61fcb9144f067cf1abe930dd5cb6854d262a5c77a46fe123d4854884097. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QM42K2136030.
      date published: 2026-07-20T14:57:46Z
    audio: Megumin
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.911
      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: 0.799
      additional property: Energy
        type: PropertyValue
        value: 0.538
      additional property: Speechiness
        type: PropertyValue
        value: 0.089
      additional property: Acousticness
        type: PropertyValue
        value: 0.19
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.06
      additional property: Liveness
        type: PropertyValue
        value: 0.135
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.223
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.637
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Megumin
  type: MusicAlbum
  date published: 2021-03-22
album: Miku Hatsune with Cat Ears
  type: MusicAlbum
  date published: 2022-08-05
album: Miku Hatsune with Cat Ears
  type: MusicAlbum
  date published: 2022-08-05