Gunnar Bjerk
type: MusicGroup
popularity: 3
followers: 275
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9a1c090a08cab8ecc731d36f51d9d41aa3f3827ecfcaf3f94008417ccb0b94aa
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/b3ccb9ce-9c9e-4637-b04d-2c2be6991227.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b3ccb9ce-9c9e-4637-b04d-2c2be6991227.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b3ccb9ce-9c9e-4637-b04d-2c2be6991227
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9a1c090a08cab8ecc731d36f51d9d41aa3f3827ecfcaf3f94008417ccb0b94aa","name":"Gunnar Bjerk","registered_at":"2026-06-20T13:50:28Z","symbol":"NIM1624051","token_address":"0x1f9f514199330c66fcb91964ced73e909be15100","type":"artist","uuid":"b3ccb9ce-9c9e-4637-b04d-2c2be6991227"}
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 0x9a1c090a08cab8ecc731d36f51d9d41aa3f3827ecfcaf3f94008417ccb0b94aa. 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/b3ccb9ce-9c9e-4637-b04d-2c2be6991227.json and https://artists.proofprofile.net/proofs/artist/b3ccb9ce-9c9e-4637-b04d-2c2be6991227.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x9a1c090a08cab8ecc731d36f51d9d41aa3f3827ecfcaf3f94008417ccb0b94aa","name":"Gunnar Bjerk","registered_at":"2026-06-20T13:50:28Z","symbol":"NIM1624051","token_address":"0x1f9f514199330c66fcb91964ced73e909be15100","type":"artist","uuid":"b3ccb9ce-9c9e-4637-b04d-2c2be6991227"}
album: Back Then
  type: MusicAlbum
  date published: 2011-03-14
album: Back Then
  type: MusicAlbum
  date published: 2011-04-25
  track: Back Then
    type: MusicRecording
    duration: PT3M38S
    duration ms: 218309
    explicit: false
    by artist: Gunnar Bjerk
    in album: Back Then
      type: MusicAlbum
      date published: 2011-04-25
    isrc code: US4GE1100036
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T05:18:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcc66d200e499aa4b7eb6f77a14380ad0cd147ddf02ef7289a728ca2b6bb89a41
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956656
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956656
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4GE1100036
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T14:03:39Z
    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 0xcc66d200e499aa4b7eb6f77a14380ad0cd147ddf02ef7289a728ca2b6bb89a41. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/US4GE1100036.
      date published: 2026-07-04T14:03:39Z
    audio: Back Then
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 103.972
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.699
      additional property: Energy
        type: PropertyValue
        value: 0.331
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.171
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.136
      additional property: Liveness
        type: PropertyValue
        value: 0.086
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.583
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.129
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Back Then
  type: MusicAlbum
  date published: 2011-04-25