Bröderna Lejonhjärta
type: MusicGroup
genre: swedish ballads
popularity: 30
followers: 679
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xba58c02424089ff5b70f820b9860e52b96710ac797d342c1c87114802f53ae9e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3ce8486-5373-41d2-882b-20976793fe1d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3ce8486-5373-41d2-882b-20976793fe1d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d3ce8486-5373-41d2-882b-20976793fe1d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
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  value: {"copyright_id":"0xba58c02424089ff5b70f820b9860e52b96710ac797d342c1c87114802f53ae9e","name":"Bröderna Lejonhjärta","registered_at":"2026-06-12T18:12:57Z","symbol":"NIM0332686","token_address":"0x32fb8284ddc8602feedf5320c506a76ad2f327fc","type":"artist","uuid":"d3ce8486-5373-41d2-882b-20976793fe1d"}
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 0xba58c02424089ff5b70f820b9860e52b96710ac797d342c1c87114802f53ae9e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3ce8486-5373-41d2-882b-20976793fe1d.json and https://artists.proofprofile.net/proofs/artist/d3ce8486-5373-41d2-882b-20976793fe1d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xba58c02424089ff5b70f820b9860e52b96710ac797d342c1c87114802f53ae9e","name":"Bröderna Lejonhjärta","registered_at":"2026-06-12T18:12:57Z","symbol":"NIM0332686","token_address":"0x32fb8284ddc8602feedf5320c506a76ad2f327fc","type":"artist","uuid":"d3ce8486-5373-41d2-882b-20976793fe1d"}
album: Bröderna Lejonhjärta
  type: MusicAlbum
  date published: 1977-01-01
  track: Min bror Jonatan / Jag kommer till Nangijala
    type: MusicRecording
    duration: PT6M13S
    duration ms: 373002
    explicit: false
    by artist: Bröderna Lejonhjärta
    in album: Bröderna Lejonhjärta
      type: MusicAlbum
      date published: 1977-01-01
    genre: swedish ballads
    isrc code: SEUM72501519
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T10:50:38+00:00
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
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      value: 959123
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959123
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEUM72501519
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T11:35:32Z
    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 0x062bab7869c9261197147fe7123964a6aa455c5889202271b3f530d5698d151e. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEUM72501519 — a six-check JSON result.
      date published: 2026-07-22T11:35:32Z
    audio: Min bror Jonatan / Jag kommer till Nangijala
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 126.626
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.54
      additional property: Energy
        type: PropertyValue
        value: 0.247
      additional property: Speechiness
        type: PropertyValue
        value: 0.661
      additional property: Acousticness
        type: PropertyValue
        value: 0.706
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.747
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.348
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.992
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major