Chico Cruz
type: MusicGroup
popularity: 2
followers: 31
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf43937db060b7aad1cea8f600f7aa13400b8d20b3a3f74181d0d99236066c5a1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/77b0a00b-6487-4099-9dda-15c6b4ebe550.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/77b0a00b-6487-4099-9dda-15c6b4ebe550.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/77b0a00b-6487-4099-9dda-15c6b4ebe550
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf43937db060b7aad1cea8f600f7aa13400b8d20b3a3f74181d0d99236066c5a1","name":"Chico Cruz","registered_at":"2026-06-17T07:19:40Z","symbol":"NIM1321980","token_address":"0x9d457633e5891885c19b395fa141a3ee57d25ad2","type":"artist","uuid":"77b0a00b-6487-4099-9dda-15c6b4ebe550"}
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 0xf43937db060b7aad1cea8f600f7aa13400b8d20b3a3f74181d0d99236066c5a1. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77b0a00b-6487-4099-9dda-15c6b4ebe550.json and https://artists.proofprofile.net/proofs/artist/77b0a00b-6487-4099-9dda-15c6b4ebe550.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T15:44:10Z
  text: {"copyright_id":"0xf43937db060b7aad1cea8f600f7aa13400b8d20b3a3f74181d0d99236066c5a1","name":"Chico Cruz","registered_at":"2026-06-17T07:19:40Z","symbol":"NIM1321980","token_address":"0x9d457633e5891885c19b395fa141a3ee57d25ad2","type":"artist","uuid":"77b0a00b-6487-4099-9dda-15c6b4ebe550"}
album: Here I Am
  type: MusicAlbum
  date published: 2025-05-22
  track: Here I Am
    type: MusicRecording
    duration: PT4M52S
    duration ms: 292000
    explicit: false
    by artist: Chico Cruz
    in album: Here I Am
      type: MusicAlbum
      date published: 2025-05-22
    isrc code: GX3HH2564894
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T06:04:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x50a0251d72d8140d235959f98513a0db930ca330e9aa92ac6ea95959aed99b67
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX3HH2564894
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0x50a0251d72d8140d235959f98513a0db930ca330e9aa92ac6ea95959aed99b67. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GX3HH2564894.
      date published: 2026-07-05T10:01:46Z
    audio: Here I Am
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 137.109
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.372
      additional property: Energy
        type: PropertyValue
        value: 0.492
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.89
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.117
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.242
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.601
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: The Day You Came/The Day You Left
  type: MusicAlbum
  date published: 2025-06-24