John Sammol
type: MusicGroup
genre: norwegian pop
popularity: 4
followers: 240
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9769c8ccf64128f0e5a529904eeb8927509e637503879a36162c85d9299c5ab7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef50de67-d0a3-4536-9263-2ebb005eb785.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef50de67-d0a3-4536-9263-2ebb005eb785.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ef50de67-d0a3-4536-9263-2ebb005eb785
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9769c8ccf64128f0e5a529904eeb8927509e637503879a36162c85d9299c5ab7","name":"John Sammol","registered_at":"2026-06-21T12:17:34Z","symbol":"NIM1920983","token_address":"0x75c1daa7cf6d5264a6a292c50f162f06b10fd652","type":"artist","uuid":"ef50de67-d0a3-4536-9263-2ebb005eb785"}
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 0x9769c8ccf64128f0e5a529904eeb8927509e637503879a36162c85d9299c5ab7. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef50de67-d0a3-4536-9263-2ebb005eb785.json and https://artists.proofprofile.net/proofs/artist/ef50de67-d0a3-4536-9263-2ebb005eb785.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x9769c8ccf64128f0e5a529904eeb8927509e637503879a36162c85d9299c5ab7","name":"John Sammol","registered_at":"2026-06-21T12:17:34Z","symbol":"NIM1920983","token_address":"0x75c1daa7cf6d5264a6a292c50f162f06b10fd652","type":"artist","uuid":"ef50de67-d0a3-4536-9263-2ebb005eb785"}
album: ELÅ
  type: MusicAlbum
  date published: 2020-07-17
  track: ELÅ
    type: MusicRecording
    duration: PT2M42S
    duration ms: 162860
    explicit: false
    by artist: John Sammol
    in album: ELÅ
      type: MusicAlbum
      date published: 2020-07-17
    genre: norwegian pop
    isrc code: QM6P42051550
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T21:17:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x05f6a7f171fcf2f264bb7e9f3441bd6750e064bd8cdf5a506eceda91bb5c0599
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958331
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958331
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P42051550
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T00:22:13Z
    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 0x05f6a7f171fcf2f264bb7e9f3441bd6750e064bd8cdf5a506eceda91bb5c0599. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:22:13Z), 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/QM6P42051550.
      date published: 2026-07-17T00:22:13Z
    audio: ELÅ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 114.993
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.692
      additional property: Energy
        type: PropertyValue
        value: 0.719
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.392
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.091
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.658
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.297
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major