Käpprätt
type: MusicGroup
genre: hardcore punk
genre: swedish ballads
popularity: 3
followers: 169
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdeee63d31028ee779d9e4f90c826b3fab374ecbc7997d84e1cbf8638b10577c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954580
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b60ee972-7f6d-4f0d-8d8d-601b42611391.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b60ee972-7f6d-4f0d-8d8d-601b42611391.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b60ee972-7f6d-4f0d-8d8d-601b42611391
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T17:48:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdeee63d31028ee779d9e4f90c826b3fab374ecbc7997d84e1cbf8638b10577c4","name":"Käpprätt","registered_at":"2026-06-20T14:34:25Z","symbol":"NIM1632345","token_address":"0xc9b2363352ecc519c60d8af476324fd24d20bbb6","type":"artist","uuid":"b60ee972-7f6d-4f0d-8d8d-601b42611391"}
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 0xdeee63d31028ee779d9e4f90c826b3fab374ecbc7997d84e1cbf8638b10577c4. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b60ee972-7f6d-4f0d-8d8d-601b42611391.json and https://artists.proofprofile.net/proofs/artist/b60ee972-7f6d-4f0d-8d8d-601b42611391.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T17:48:00Z
  text: {"copyright_id":"0xdeee63d31028ee779d9e4f90c826b3fab374ecbc7997d84e1cbf8638b10577c4","name":"Käpprätt","registered_at":"2026-06-20T14:34:25Z","symbol":"NIM1632345","token_address":"0xc9b2363352ecc519c60d8af476324fd24d20bbb6","type":"artist","uuid":"b60ee972-7f6d-4f0d-8d8d-601b42611391"}
album: Det är så vi gör i Västerås
  type: MusicAlbum
  date published: 2023-11-06
album: S/T
  type: MusicAlbum
  date published: 2021-08-06
album: Harkla upp dammet
  type: MusicAlbum
  date published: 2020-04-03
  track: Lev fort dö ung
album: Fulla som vanligt
  type: MusicAlbum
  date published: 2017-12-11

Lev fort dö ung
type: MusicRecording
duration: PT2M36S
duration ms: 156663
explicit: false
by artist: Käpprätt
in album: Harkla upp dammet
  type: MusicAlbum
  date published: 2020-04-03
genre: hardcore-punk
isrc code: SE6A91926972
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T15:38:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e16e3c2cf8fd4ad7903240efc182895b8e1a8a44c4ea65faeb35fed7bd15356
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6A91926972
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e16e3c2cf8fd4ad7903240efc182895b8e1a8a44c4ea65faeb35fed7bd15356. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SE6A91926972.
  date published: 2026-07-02T11:38:34Z
audio: Lev fort dö ung
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.983
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.325
  additional property: Energy
    type: PropertyValue
    value: 0.954
  additional property: Speechiness
    type: PropertyValue
    value: 0.059
  additional property: Acousticness
    type: PropertyValue
    value: 0.006
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.299
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.377
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.067
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor