Marco Cardoza
type: MusicGroup
popularity: 2
followers: 206
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7204239ce8fe9e42eb259baca71675813b0ad56c68ff36cdc207de1a6da60222
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c99f664a-b71d-4be8-b8a9-6a633be24164.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c99f664a-b71d-4be8-b8a9-6a633be24164.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c99f664a-b71d-4be8-b8a9-6a633be24164
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7204239ce8fe9e42eb259baca71675813b0ad56c68ff36cdc207de1a6da60222","name":"Marco Cardoza","registered_at":"2026-06-20T22:44:44Z","symbol":"NIM1737655","token_address":"0x692936f3e077e22e85733a27fb175ec98da81ed8","type":"artist","uuid":"c99f664a-b71d-4be8-b8a9-6a633be24164"}
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 0x7204239ce8fe9e42eb259baca71675813b0ad56c68ff36cdc207de1a6da60222. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c99f664a-b71d-4be8-b8a9-6a633be24164.json and https://artists.proofprofile.net/proofs/artist/c99f664a-b71d-4be8-b8a9-6a633be24164.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x7204239ce8fe9e42eb259baca71675813b0ad56c68ff36cdc207de1a6da60222","name":"Marco Cardoza","registered_at":"2026-06-20T22:44:44Z","symbol":"NIM1737655","token_address":"0x692936f3e077e22e85733a27fb175ec98da81ed8","type":"artist","uuid":"c99f664a-b71d-4be8-b8a9-6a633be24164"}
album: El Gato
  type: MusicAlbum
  date published: 1970-01-16
album: I Love All Girls
  type: MusicAlbum
  date published: 1970-01-16
album: I Was Just Wondering
  type: MusicAlbum
  date published: 1970-01-16
album: What Am I Doin' - Single
  type: MusicAlbum
  date published: 2012-07-17
album: Same Old Story
  type: MusicAlbum
  date published: 2012-09-26
album: I Was Just Wondering
  type: MusicAlbum
  date published: 2013-02-11
album: Mr.Puff
  type: MusicAlbum
  date published: 2013-04-19
album: Move & I Got You EP
  type: MusicAlbum
  date published: 2013-08-06
album: More to Me
  type: MusicAlbum
  date published: 2013-08-13
album: Future
  type: MusicAlbum
  date published: 2015-07-13
album: You Can Catch Me EP
  type: MusicAlbum
  date published: 2015-09-02
album: Get Right Ep
  type: MusicAlbum
  date published: 2015-09-25
album: Perfect
  type: MusicAlbum
  date published: 2016-01-12
album: Union Remixes
  type: MusicAlbum
  date published: 2017-04-13
album: Cuando Callas
  type: MusicAlbum
  date published: 2017-12-22
album: Reality Is
  type: MusicAlbum
  date published: 2022-07-29
album: Reality Is
  type: MusicAlbum
  date published: 2022-08-12
track: Somebody To Call My Own
  type: MusicRecording
  duration: PT7M9S
  duration ms: 429000
  explicit: false
  by artist: Marco Cardoza
  by artist: Ishmáel Johnson
  in album: Trippy Groovy
    type: MusicAlbum
    date published: 2018-05-18
  isrc code: ITNYQ1800070
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T14:41:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd2abcda31f7af333d856b9b98d801f1f7ee9eb6c0ca3d212498b9c070c971a89
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960121
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960121
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITNYQ1800070
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T15:22:21Z
  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 0xd2abcda31f7af333d856b9b98d801f1f7ee9eb6c0ca3d212498b9c070c971a89. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ITNYQ1800070.
    date published: 2026-07-29T15:22:21Z
  audio: Somebody To Call My Own
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 132.959
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.805
    additional property: Energy
      type: PropertyValue
      value: 0.448
    additional property: Speechiness
      type: PropertyValue
      value: 0.091
    additional property: Acousticness
      type: PropertyValue
      value: 0.099
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.919
    additional property: Liveness
      type: PropertyValue
      value: 0.094
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.163
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.085
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor