Jeff Engholm
type: MusicGroup
popularity: 2
followers: 396
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0386f213d1dded2d8aee1a85ec409f6bebbbb786571f4a8e259bd77de312b48e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c58f94cc-0485-43cc-9c8c-268ea4b65447.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c58f94cc-0485-43cc-9c8c-268ea4b65447.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c58f94cc-0485-43cc-9c8c-268ea4b65447
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0386f213d1dded2d8aee1a85ec409f6bebbbb786571f4a8e259bd77de312b48e","name":"Jeff Engholm","registered_at":"2026-06-20T21:00:28Z","symbol":"NIM1713747","token_address":"0xf3dc21038186a991e74331e892e0243696659363","type":"artist","uuid":"c58f94cc-0485-43cc-9c8c-268ea4b65447"}
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 0x0386f213d1dded2d8aee1a85ec409f6bebbbb786571f4a8e259bd77de312b48e. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c58f94cc-0485-43cc-9c8c-268ea4b65447.json and https://artists.proofprofile.net/proofs/artist/c58f94cc-0485-43cc-9c8c-268ea4b65447.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0x0386f213d1dded2d8aee1a85ec409f6bebbbb786571f4a8e259bd77de312b48e","name":"Jeff Engholm","registered_at":"2026-06-20T21:00:28Z","symbol":"NIM1713747","token_address":"0xf3dc21038186a991e74331e892e0243696659363","type":"artist","uuid":"c58f94cc-0485-43cc-9c8c-268ea4b65447"}
album: Little Big Things
  type: MusicAlbum
  date published: 2021-06-18
album: The Tick Tock Twist
  type: MusicAlbum
  date published: 2022-12-20
  track: The Tick Tock Twist
    type: MusicRecording
    duration: PT3M22S
    duration ms: 202426
    explicit: false
    by artist: Jeff Engholm
    in album: The Tick Tock Twist
      type: MusicAlbum
      date published: 2022-12-20
    isrc code: USL4R2248152
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T09:42:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x168987ecc924e33a46fa85e54002f606a1c0b96a9775fee2ad07d3ae803c5b35
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958991
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958991
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4R2248152
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T10:04:40Z
    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 0x168987ecc924e33a46fa85e54002f606a1c0b96a9775fee2ad07d3ae803c5b35. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/USL4R2248152.
      date published: 2026-07-21T10:04:40Z
    audio: The Tick Tock Twist
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 158.019
      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: 0.617
      additional property: Energy
        type: PropertyValue
        value: 0.926
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0.275
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.485
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.962
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.611
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: I Swear
  type: MusicAlbum
  date published: 2023-02-14
album: A Minor Incident
  type: MusicAlbum
  date published: 2023-04-11
album: Figurehead
  type: MusicAlbum
  date published: 2023-05-19
album: Devils Inside
  type: MusicAlbum
  date published: 2023-11-17
album: Just the Same
  type: MusicAlbum
  date published: 2025-06-13
album: We Did OK
  type: MusicAlbum
  date published: 2025-08-22
album: Fairy Tale Eyes
  type: MusicAlbum
  date published: 2025-10-17