Johan Fredriksson
type: MusicGroup
popularity: 4
followers: 97
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf4cb8bf4bc2fad156942d26737610c868ae485475dbfa6e63a094a15e8836676
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/deb5e5d2-e5eb-4e67-89b3-9d941961a0ed.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/deb5e5d2-e5eb-4e67-89b3-9d941961a0ed.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/deb5e5d2-e5eb-4e67-89b3-9d941961a0ed
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf4cb8bf4bc2fad156942d26737610c868ae485475dbfa6e63a094a15e8836676","name":"Johan Fredriksson","registered_at":"2026-06-21T05:44:42Z","symbol":"NIM1837665","token_address":"0xea0dbf850ad82296f3ab66245fa7c6e4114f783b","type":"artist","uuid":"deb5e5d2-e5eb-4e67-89b3-9d941961a0ed"}
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 0xf4cb8bf4bc2fad156942d26737610c868ae485475dbfa6e63a094a15e8836676. 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/deb5e5d2-e5eb-4e67-89b3-9d941961a0ed.json and https://artists.proofprofile.net/proofs/artist/deb5e5d2-e5eb-4e67-89b3-9d941961a0ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xf4cb8bf4bc2fad156942d26737610c868ae485475dbfa6e63a094a15e8836676","name":"Johan Fredriksson","registered_at":"2026-06-21T05:44:42Z","symbol":"NIM1837665","token_address":"0xea0dbf850ad82296f3ab66245fa7c6e4114f783b","type":"artist","uuid":"deb5e5d2-e5eb-4e67-89b3-9d941961a0ed"}
album: Blåvitt Blod
  type: MusicAlbum
  date published: 2014-01-30
album: Blåvitt blod
  type: MusicAlbum
  date published: 2014-01-30
album: Blåvitt blod
  type: MusicAlbum
  date published: 2014-01-30
album: Can't Seem to Let Me Go
  type: MusicAlbum
  date published: 2014-04-12
album: Can't Seem to Let Me Go
  type: MusicAlbum
  date published: 2014-04-12
album: Can't Seem to Let Me Go
  type: MusicAlbum
  date published: 2017-09-25
album: Blåvitt blod
  type: MusicAlbum
  date published: 2017-09-25
  track: Blåvitt blod
    type: MusicRecording
    duration: PT3M10S
    duration ms: 190146
    explicit: false
    by artist: Johan Fredriksson
    in album: Blåvitt blod
      type: MusicAlbum
      date published: 2017-09-25
    isrc code: SE3OH1400258
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T03:23:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8bc84d9539e529b627b81b404998ed01332e4d10e86d7aa53ebf351fab9014d3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958357
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958357
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE3OH1400258
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T03:33:42Z
    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 0x8bc84d9539e529b627b81b404998ed01332e4d10e86d7aa53ebf351fab9014d3. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/SE3OH1400258.
      date published: 2026-07-17T03:33:42Z
    audio: Blåvitt blod
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.977
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.624
      additional property: Energy
        type: PropertyValue
        value: 0.774
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.252
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.115
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.566
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.615
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor