1.Mai 87
type: MusicGroup
genre: punk
popularity: 8
followers: 631
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbf2054cddbd13d0eff6244b5aacf746d4ceb2c881b667355cc9c52b82ca7850e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c9938dfd-20b4-46ff-8d89-459b8f9aeda9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c9938dfd-20b4-46ff-8d89-459b8f9aeda9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c9938dfd-20b4-46ff-8d89-459b8f9aeda9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbf2054cddbd13d0eff6244b5aacf746d4ceb2c881b667355cc9c52b82ca7850e","name":"1.Mai 87","registered_at":"2026-06-20T22:13:37Z","symbol":"NIM1730493","token_address":"0x13ee88e7c1c76b299b21b5eb894370fa37aa5754","type":"artist","uuid":"c9938dfd-20b4-46ff-8d89-459b8f9aeda9"}
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 0xbf2054cddbd13d0eff6244b5aacf746d4ceb2c881b667355cc9c52b82ca7850e. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9938dfd-20b4-46ff-8d89-459b8f9aeda9.json and https://artists.proofprofile.net/proofs/artist/c9938dfd-20b4-46ff-8d89-459b8f9aeda9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
  text: {"copyright_id":"0xbf2054cddbd13d0eff6244b5aacf746d4ceb2c881b667355cc9c52b82ca7850e","name":"1.Mai 87","registered_at":"2026-06-20T22:13:37Z","symbol":"NIM1730493","token_address":"0x13ee88e7c1c76b299b21b5eb894370fa37aa5754","type":"artist","uuid":"c9938dfd-20b4-46ff-8d89-459b8f9aeda9"}
album: Viecher im Leib
  type: MusicAlbum
  date published: 1994
  track: Voll proll
    type: MusicRecording
    duration: PT4M19S
    duration ms: 259933
    explicit: false
    by artist: 1.Mai 87
    in album: Viecher im Leib
      type: MusicAlbum
      date published: 1994
    genre: punk
    isrc code: FR96X1981949
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T05:59:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa58cba6290ee1f41f9f782adec2455162f95a5b2d26fa9cc567acd33a5c2ac27
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958839
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958839
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X1981949
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T07:01:59Z
    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 0xa58cba6290ee1f41f9f782adec2455162f95a5b2d26fa9cc567acd33a5c2ac27. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/FR96X1981949.
      date published: 2026-07-20T07:01:59Z
    audio: Voll proll
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 150.207
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.593
      additional property: Energy
        type: PropertyValue
        value: 0.639
      additional property: Speechiness
        type: PropertyValue
        value: 0.078
      additional property: Acousticness
        type: PropertyValue
        value: 0.003
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.148
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.529
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.404
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Fohlenwurst im Federkleid
  type: MusicAlbum
  date published: 1997-10-01
album: Wurzel
  type: MusicAlbum
  date published: 1998-10-01
album: Rip Off
  type: MusicAlbum
  date published: 2000-10-01