Professærn
type: MusicGroup
genre: russelåter
popularity: 3
followers: 78
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xebd97592a0aa4c7222f0ea43aa31ac42e8fe2559f2094249eb54680e9cb05459
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4ef1dcd9-61e4-476c-b0c5-019261ab375b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4ef1dcd9-61e4-476c-b0c5-019261ab375b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4ef1dcd9-61e4-476c-b0c5-019261ab375b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xebd97592a0aa4c7222f0ea43aa31ac42e8fe2559f2094249eb54680e9cb05459","name":"Professærn","registered_at":"2026-06-16T17:02:07Z","symbol":"NIM1117349","token_address":"0x187cf8dabf882bfc34a067b977eb507f7cda25b1","type":"artist","uuid":"4ef1dcd9-61e4-476c-b0c5-019261ab375b"}
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 0xebd97592a0aa4c7222f0ea43aa31ac42e8fe2559f2094249eb54680e9cb05459. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4ef1dcd9-61e4-476c-b0c5-019261ab375b.json and https://artists.proofprofile.net/proofs/artist/4ef1dcd9-61e4-476c-b0c5-019261ab375b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xebd97592a0aa4c7222f0ea43aa31ac42e8fe2559f2094249eb54680e9cb05459","name":"Professærn","registered_at":"2026-06-16T17:02:07Z","symbol":"NIM1117349","token_address":"0x187cf8dabf882bfc34a067b977eb507f7cda25b1","type":"artist","uuid":"4ef1dcd9-61e4-476c-b0c5-019261ab375b"}
album: Pæradise
  type: MusicAlbum
  date published: 2024-04-20
album: Made It 2025
  type: MusicAlbum
  date published: 2024-07-05
album: Succession 2025
  type: MusicAlbum
  date published: 2024-10-18
album: Fucked Up (Stifler 2025)
  type: MusicAlbum
  date published: 2024-11-29
album: Spaceballs 2025
  type: MusicAlbum
  date published: 2025-04-22
  track: Jamaica (Spaceballs 2025)
    type: MusicRecording
    duration: PT2M19S
    duration ms: 139687
    explicit: false
    by artist: Professærn
    in album: Spaceballs 2025
      type: MusicAlbum
      date published: 2025-04-22
    genre: russelåter
    isrc code: QZNWQ2568088
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T15:05:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3f32940286af4322e329d0e56ba5c205eb7dfa137f348efe4291d87fd12e2a39
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958444
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958444
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2568088
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:12:23Z
    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 0x3f32940286af4322e329d0e56ba5c205eb7dfa137f348efe4291d87fd12e2a39. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZNWQ2568088.
      date published: 2026-07-17T19:12:23Z
    audio: Jamaica (Spaceballs 2025)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.934
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.752
      additional property: Energy
        type: PropertyValue
        value: 0.738
      additional property: Speechiness
        type: PropertyValue
        value: 0.167
      additional property: Acousticness
        type: PropertyValue
        value: 0.054
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.19
      additional property: Liveness
        type: PropertyValue
        value: 0.113
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.16
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.497
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Stiv Kuling (Rullelåt)
  type: MusicAlbum
  date published: 2025-04-23
album: Mayflower 2026
  type: MusicAlbum
  date published: 2025-11-07