What2do?
type: MusicGroup
popularity: 2
followers: 297
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xff73fe4379d81547b0511ff2d33d7701389533deb357f345b8357eafb59ff0b9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a80b5cfa-9ac3-4752-9a4f-4a7a010060e0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a80b5cfa-9ac3-4752-9a4f-4a7a010060e0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a80b5cfa-9ac3-4752-9a4f-4a7a010060e0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
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 0xff73fe4379d81547b0511ff2d33d7701389533deb357f345b8357eafb59ff0b9. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a80b5cfa-9ac3-4752-9a4f-4a7a010060e0.json and https://artists.proofprofile.net/proofs/artist/a80b5cfa-9ac3-4752-9a4f-4a7a010060e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
album: Treat
  type: MusicAlbum
  date published: 2019-02-09
album: Každý Deň
  type: MusicAlbum
  date published: 2019-02-17
album: Vyjebané jazvy
  type: MusicAlbum
  date published: 2019-02-24
album: Flexim Ako Duro Mokry
  type: MusicAlbum
  date published: 2019-03-03
album: Drop-Top Mini-Van
  type: MusicAlbum
  date published: 2019-04-14
album: Cash
  type: MusicAlbum
  date published: 2019-05-24
album: Tulipán
  type: MusicAlbum
  date published: 2019-05-30
album: Rozjebať
  type: MusicAlbum
  date published: 2019-06-30
album: Ďalej / Srdce
  type: MusicAlbum
  date published: 2019-09-20
album: Pat a Mat
  type: MusicAlbum
  date published: 2020-01-13
  track: Pat a Mat
    type: MusicRecording
    duration: PT2M39S
    duration ms: 159242
    explicit: true
    by artist: What2do?
    in album: Pat a Mat
      type: MusicAlbum
      date published: 2020-01-13
    isrc code: QZFYX2045818
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T09:17:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x047f7c9bb2b9b937c1740463d5792c6ad2e581d5cb56b860c1b894d7eb50dd9b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959118
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959118
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYX2045818
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T10:01:58Z
    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 0x047f7c9bb2b9b937c1740463d5792c6ad2e581d5cb56b860c1b894d7eb50dd9b. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZFYX2045818.
      date published: 2026-07-22T10:01:58Z
    audio: Pat a Mat
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 160.304
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.706
      additional property: Energy
        type: PropertyValue
        value: 0.531
      additional property: Speechiness
        type: PropertyValue
        value: 0.53
      additional property: Acousticness
        type: PropertyValue
        value: 0.328
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.097
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.603
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.435
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Manic Pixie Dream Girl
  type: MusicAlbum
  date published: 2020-02-14
album: Bang Bang Bang
  type: MusicAlbum
  date published: 2020-02-21
album: Eden
  type: MusicAlbum
  date published: 2020-04-14
album: endless
  type: MusicAlbum
  date published: 2021-01-29