polarbison
type: MusicGroup
popularity: 6
followers: 206
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8317a121e43b7b7d5578fce730d22bad68488968b82bdcbfd573cc8ccd3f6187
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f4ebef48-adf7-4d1f-b706-6fd3b32ab972.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f4ebef48-adf7-4d1f-b706-6fd3b32ab972.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f4ebef48-adf7-4d1f-b706-6fd3b32ab972
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
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 0x8317a121e43b7b7d5578fce730d22bad68488968b82bdcbfd573cc8ccd3f6187. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4ebef48-adf7-4d1f-b706-6fd3b32ab972.json and https://artists.proofprofile.net/proofs/artist/f4ebef48-adf7-4d1f-b706-6fd3b32ab972.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
album: 57 Fairytale
  type: MusicAlbum
  date published: 2021-04-30
album: 57 Fairytale
  type: MusicAlbum
  date published: 2021-04-30
album: Shawty tape v6
  type: MusicAlbum
  date published: 2021-06-25
album: Summers gon end**
  type: MusicAlbum
  date published: 2021-08-13
album: Summers gon end**
  type: MusicAlbum
  date published: 2021-08-13
album: denk es mir tot
  type: MusicAlbum
  date published: 2022-01-14
album: polar66
  type: MusicAlbum
  date published: 2022-02-25
album: Smh
  type: MusicAlbum
  date published: 2022-08-04
album: Youth been to vienna?
  type: MusicAlbum
  date published: 2022-08-15
album: wieder vorbei
  type: MusicAlbum
  date published: 2023-04-28
album: wieder vorbei
  type: MusicAlbum
  date published: 2023-04-28
album: Gare du nord
  type: MusicAlbum
  date published: 2023-08-11
album: wieder vorbei
  type: MusicAlbum
  date published: 2023-11-10
album: irgendwo regnets immer
  type: MusicAlbum
  date published: 2024-08-16
album: kopfschmerzen
  type: MusicAlbum
  date published: 2025-03-14
  track: kopfschmerzen
    type: MusicRecording
    duration: PT1M36S
    duration ms: 96132
    explicit: true
    by artist: polarbison
    in album: kopfschmerzen
      type: MusicAlbum
      date published: 2025-03-14
    isrc code: QZHNB2509015
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T13:09:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa2991d2a4614c3f9f1370bf93c5373daa8d20b44190c83db2f4ee58fd82903e8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958552
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958552
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNB2509015
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T13:15:29Z
    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 0xa2991d2a4614c3f9f1370bf93c5373daa8d20b44190c83db2f4ee58fd82903e8. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZHNB2509015.
      date published: 2026-07-18T13:15:29Z
    audio: kopfschmerzen
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 160.001
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.691
      additional property: Energy
        type: PropertyValue
        value: 0.467
      additional property: Speechiness
        type: PropertyValue
        value: 0.236
      additional property: Acousticness
        type: PropertyValue
        value: 0.076
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.027
      additional property: Liveness
        type: PropertyValue
        value: 0.158
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.324
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.703
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major