Stefan Fredriksson
type: MusicGroup
genre: dansband
popularity: 14
followers: 120
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5e0ab67636739b8a4c866243510e6542e99e51b84b158b9b59f83d9120679a1e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953819
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953819
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f7b55026-03a0-4485-9d9b-19313571899e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f7b55026-03a0-4485-9d9b-19313571899e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f7b55026-03a0-4485-9d9b-19313571899e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:31:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5e0ab67636739b8a4c866243510e6542e99e51b84b158b9b59f83d9120679a1e","name":"Stefan Fredriksson","registered_at":"2026-06-15T06:33:11Z","symbol":"NIM0711882","token_address":"0xc513c7b5348bfbf69ad99f6063b4844f104429dd","type":"artist","uuid":"f7b55026-03a0-4485-9d9b-19313571899e"}
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 0x5e0ab67636739b8a4c866243510e6542e99e51b84b158b9b59f83d9120679a1e. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7b55026-03a0-4485-9d9b-19313571899e.json and https://artists.proofprofile.net/proofs/artist/f7b55026-03a0-4485-9d9b-19313571899e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:31:52Z
  text: {"copyright_id":"0x5e0ab67636739b8a4c866243510e6542e99e51b84b158b9b59f83d9120679a1e","name":"Stefan Fredriksson","registered_at":"2026-06-15T06:33:11Z","symbol":"NIM0711882","token_address":"0xc513c7b5348bfbf69ad99f6063b4844f104429dd","type":"artist","uuid":"f7b55026-03a0-4485-9d9b-19313571899e"}
album: Kommer Du Att Stanna Kvar
  type: MusicAlbum
  date published: 2014-11-14
  track: Kommer Du Att Stanna Kvar
    type: MusicRecording
    duration: PT2M35S
    duration ms: 155654
    explicit: false
    by artist: Stefan Fredriksson
    in album: Kommer Du Att Stanna Kvar
      type: MusicAlbum
      date published: 2014-11-14
    genre: dansband
    isrc code: SE5Q51803187
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T14:19:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x90937b3dda577cd19cfa0a7efcc3cbcbea87bd8349154a4804c279e37f8ffe07
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958428
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958428
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5Q51803187
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T15:15:14Z
    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 0x90937b3dda577cd19cfa0a7efcc3cbcbea87bd8349154a4804c279e37f8ffe07. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/SE5Q51803187.
      date published: 2026-07-17T15:15:14Z
    audio: Kommer Du Att Stanna Kvar
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.043
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.748
      additional property: Energy
        type: PropertyValue
        value: 0.624
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0.385
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.005
      additional property: Liveness
        type: PropertyValue
        value: 0.181
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.791
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.754
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Venedig
  type: MusicAlbum
  date published: 2018-03-20