Fredrik & Victor
type: MusicGroup
popularity: 3
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x273c1a53beac1b62019a3d48cc9db2b9510352e9012a9d431d4d4957a7eb751f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954134
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954134
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7e787489-1f44-4715-8144-c3a37d4efc65.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7e787489-1f44-4715-8144-c3a37d4efc65.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7e787489-1f44-4715-8144-c3a37d4efc65
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:41:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x273c1a53beac1b62019a3d48cc9db2b9510352e9012a9d431d4d4957a7eb751f","name":"Fredrik & Victor","registered_at":"2026-06-17T09:39:33Z","symbol":"NIM1355307","token_address":"0xefb6003474e1914999685c9ec55563338e938ba5","type":"artist","uuid":"7e787489-1f44-4715-8144-c3a37d4efc65"}
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 0x273c1a53beac1b62019a3d48cc9db2b9510352e9012a9d431d4d4957a7eb751f. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e787489-1f44-4715-8144-c3a37d4efc65.json and https://artists.proofprofile.net/proofs/artist/7e787489-1f44-4715-8144-c3a37d4efc65.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-18T03:01:36Z
  text: {"copyright_id":"0x273c1a53beac1b62019a3d48cc9db2b9510352e9012a9d431d4d4957a7eb751f","name":"Fredrik & Victor","registered_at":"2026-06-17T09:39:33Z","symbol":"NIM1355307","token_address":"0xefb6003474e1914999685c9ec55563338e938ba5","type":"artist","uuid":"7e787489-1f44-4715-8144-c3a37d4efc65"}
album: Frankfurt am Main
  type: MusicAlbum
  date published: 2025-03-14
  track: Frankfurt am Main
    type: MusicRecording
    duration: PT5M18S
    duration ms: 318833
    explicit: false
    by artist: Fredrik & Victor
    in album: Frankfurt am Main
      type: MusicAlbum
      date published: 2025-03-14
    isrc code: QZHNC2578037
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T04:45:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7bc7d344e047b23a310e8052c0a9b5255c84567ceabd603578f9bb0b169d54f9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956894
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956894
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2578037
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T07:53:57Z
    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 0x7bc7d344e047b23a310e8052c0a9b5255c84567ceabd603578f9bb0b169d54f9. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZHNC2578037.
      date published: 2026-07-06T07:53:57Z
    audio: Frankfurt am Main
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.989
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.501
      additional property: Energy
        type: PropertyValue
        value: 0.609
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.756
      additional property: Liveness
        type: PropertyValue
        value: 0.094
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.634
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.13
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Condor Galaxy
  type: MusicAlbum
  date published: 2025-04-10
album: Lime
  type: MusicAlbum
  date published: 2025-10-10