Alex Cambridge
type: MusicGroup
popularity: 3
followers: 110
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4039b2dce877419f5e323b5f1286c4380d50de9b0787b8ae4ef2b49279c7f8b6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954130
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954130
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7c6b627b-0dae-49bd-b95f-d1679d869153.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7c6b627b-0dae-49bd-b95f-d1679d869153.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7c6b627b-0dae-49bd-b95f-d1679d869153
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:07:14Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4039b2dce877419f5e323b5f1286c4380d50de9b0787b8ae4ef2b49279c7f8b6","name":"Alex Cambridge","registered_at":"2026-06-17T08:57:26Z","symbol":"NIM1345252","token_address":"0xf48e781e7a73d5a4420d66cc4cbeca4a90431b41","type":"artist","uuid":"7c6b627b-0dae-49bd-b95f-d1679d869153"}
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 0x4039b2dce877419f5e323b5f1286c4380d50de9b0787b8ae4ef2b49279c7f8b6. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c6b627b-0dae-49bd-b95f-d1679d869153.json and https://artists.proofprofile.net/proofs/artist/7c6b627b-0dae-49bd-b95f-d1679d869153.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:07:14Z
  text: {"copyright_id":"0x4039b2dce877419f5e323b5f1286c4380d50de9b0787b8ae4ef2b49279c7f8b6","name":"Alex Cambridge","registered_at":"2026-06-17T08:57:26Z","symbol":"NIM1345252","token_address":"0xf48e781e7a73d5a4420d66cc4cbeca4a90431b41","type":"artist","uuid":"7c6b627b-0dae-49bd-b95f-d1679d869153"}
album: February
  type: MusicAlbum
  date published: 2015-06-01
album: Many Moons Ago
  type: MusicAlbum
  date published: 2015-10-03
album: Long Story Short
  type: MusicAlbum
  date published: 2017-02-03
album: Rupture
  type: MusicAlbum
  date published: 2024-10-18
album: Brave Face
  type: MusicAlbum
  date published: 2025-02-25
  track: Brave Face
    type: MusicRecording
    duration: PT3M14S
    duration ms: 194594
    explicit: false
    by artist: Alex Cambridge
    in album: Brave Face
      type: MusicAlbum
      date published: 2025-02-25
    isrc code: UKHQ32500001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T22:39:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xde0d4f325a6a874176a308c307da4e690be3ec41d62269c0f2a8c26b30decca7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958621
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958621
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKHQ32500001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T22:59:44Z
    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 0xde0d4f325a6a874176a308c307da4e690be3ec41d62269c0f2a8c26b30decca7. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/UKHQ32500001.
      date published: 2026-07-18T22:59:44Z
    audio: Brave Face
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 76.318
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.348
      additional property: Energy
        type: PropertyValue
        value: 0.157
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.922
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.108
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.196
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.746
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Window
  type: MusicAlbum
  date published: 2025-10-03
album: In Hindsight
  type: MusicAlbum
  date published: 2025-11-02