Eduardo Cruz
type: MusicGroup
popularity: 6
followers: 544
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x77d5b95673199c76880e76a9b45177387df165eeec69eff1776fc9f177a23eb0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953928
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953928
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d6fe481-d4df-4824-949d-7c8938081d7c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d6fe481-d4df-4824-949d-7c8938081d7c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1d6fe481-d4df-4824-949d-7c8938081d7c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T10:21:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x77d5b95673199c76880e76a9b45177387df165eeec69eff1776fc9f177a23eb0","name":"Eduardo Cruz","registered_at":"2026-06-15T23:48:53Z","symbol":"NIM0870715","token_address":"0x7666e831b3d68a5dec58eac3dbadd0d076e21591","type":"artist","uuid":"1d6fe481-d4df-4824-949d-7c8938081d7c"}
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 0x77d5b95673199c76880e76a9b45177387df165eeec69eff1776fc9f177a23eb0. Chain 2 (Bitcoin): anchored in block 953928 (2026-06-16T10:21:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d6fe481-d4df-4824-949d-7c8938081d7c.json and https://artists.proofprofile.net/proofs/artist/1d6fe481-d4df-4824-949d-7c8938081d7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T10:21:55Z
  text: {"copyright_id":"0x77d5b95673199c76880e76a9b45177387df165eeec69eff1776fc9f177a23eb0","name":"Eduardo Cruz","registered_at":"2026-06-15T23:48:53Z","symbol":"NIM0870715","token_address":"0x7666e831b3d68a5dec58eac3dbadd0d076e21591","type":"artist","uuid":"1d6fe481-d4df-4824-949d-7c8938081d7c"}
album: Tu Manera
  type: MusicAlbum
  date published: 2006-04-25
album: Cosas Que Contar
  type: MusicAlbum
  date published: 2006-05-16
  track: Tu Manera
    type: MusicRecording
    duration: PT3M45S
    duration ms: 225866
    explicit: false
    by artist: Eduardo Cruz
    in album: Cosas Que Contar
      type: MusicAlbum
      date published: 2006-05-16
    isrc code: USWL10600011
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T11:54:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x191600542d797f524388437ef3f0cf9dc3e263dfe857e20f1ef853ad3277d0dd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958153
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958153
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWL10600011
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T14:56:20Z
    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 0x191600542d797f524388437ef3f0cf9dc3e263dfe857e20f1ef853ad3277d0dd. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:56:20Z), 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/USWL10600011.
      date published: 2026-07-15T14:56:20Z
    audio: Tu Manera
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 96.979
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.606
      additional property: Energy
        type: PropertyValue
        value: 0.809
      additional property: Speechiness
        type: PropertyValue
        value: 0.025
      additional property: Acousticness
        type: PropertyValue
        value: 0.216
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.087
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.661
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.61
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ni Tu Ni Yo
  type: MusicAlbum
  date published: 2006-10-24
album: AMARTE MAS
  type: MusicAlbum
  date published: 2007
album: Protesto em Formar de Trap
  type: MusicAlbum
  date published: 2019-08-01