Jónbjörn Gíslason
type: MusicGroup
popularity: 3
followers: 30
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x94877dac33d24c3c203b41e2a5f219e718790edd6a95e63d328a482f7ddf3bcc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953984
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953984
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2cc1f464-2085-4c49-bc31-cca067c3dbd8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2cc1f464-2085-4c49-bc31-cca067c3dbd8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2cc1f464-2085-4c49-bc31-cca067c3dbd8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T18:08:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x94877dac33d24c3c203b41e2a5f219e718790edd6a95e63d328a482f7ddf3bcc","name":"Jónbjörn Gíslason","registered_at":"2026-06-16T05:11:58Z","symbol":"NIM0947876","token_address":"0x5b16945af657ceb1b489efb32c72834ca6606ee0","type":"artist","uuid":"2cc1f464-2085-4c49-bc31-cca067c3dbd8"}
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 0x94877dac33d24c3c203b41e2a5f219e718790edd6a95e63d328a482f7ddf3bcc. Chain 2 (Bitcoin): anchored in block 953984 (2026-06-16T18:08:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2cc1f464-2085-4c49-bc31-cca067c3dbd8.json and https://artists.proofprofile.net/proofs/artist/2cc1f464-2085-4c49-bc31-cca067c3dbd8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T18:08:34Z
  text: {"copyright_id":"0x94877dac33d24c3c203b41e2a5f219e718790edd6a95e63d328a482f7ddf3bcc","name":"Jónbjörn Gíslason","registered_at":"2026-06-16T05:11:58Z","symbol":"NIM0947876","token_address":"0x5b16945af657ceb1b489efb32c72834ca6606ee0","type":"artist","uuid":"2cc1f464-2085-4c49-bc31-cca067c3dbd8"}
track: Jómsvíkingarímur - ýta eigi feldi rór
  type: MusicRecording
  duration: PT1M12S
  duration ms: 72698
  explicit: false
  by artist: Hjálmar Lárusson
  by artist: Jónbjörn Gíslason
  in album: Late Night Tales: Ólafur Arnalds
    type: MusicAlbum
    date published: 2016-06-24
  isrc code: GB5EM1601612
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-22T22:20:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf68519e6b31730d586608d7d3c7e3019853ea7aad04d99714663116d7cf06acd
  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/GB5EM1601612
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0xf68519e6b31730d586608d7d3c7e3019853ea7aad04d99714663116d7cf06acd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GB5EM1601612.
    date published: 2026-07-02T03:55:08Z
  audio: Jómsvíkingarímur - ýta eigi feldi rór
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 138.815
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.378
    additional property: Energy
      type: PropertyValue
      value: 0.008
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.983
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.3
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.649
    additional property: Loudness (dB)
      type: PropertyValue
      value: -36.109
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor