marco
type: MusicGroup
description: Marco may refer to: People Given name Marco (actor) (born 1977), South Korean model and actor Surname Georg Marco (1863–1923), Romanian chess player of German origin Jindřich Marco (1921–2000),
popularity: 20
followers: 878
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa5b47dd85b2756c4f8b4a76421d83c829da6f77c74be9b439be2e085c98d04b4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953713
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953713
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7f739eb3-d907-40d6-910d-9b868acaf6f7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7f739eb3-d907-40d6-910d-9b868acaf6f7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7f739eb3-d907-40d6-910d-9b868acaf6f7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T00:33:41Z
additional property: OTSCanonicalRecord
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 0xa5b47dd85b2756c4f8b4a76421d83c829da6f77c74be9b439be2e085c98d04b4. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f739eb3-d907-40d6-910d-9b868acaf6f7.json and https://artists.proofprofile.net/proofs/artist/7f739eb3-d907-40d6-910d-9b868acaf6f7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T00:33:41Z
album: CHOPPA
  type: MusicAlbum
  date published: 2020-08-25
album: i know
  type: MusicAlbum
  date published: 2020-09-12
album: sound
  type: MusicAlbum
  date published: 2023-08-25
album: triplehouse
  type: MusicAlbum
  date published: 2023-09-03
  track: triplehouse
    type: MusicRecording
    duration: PT2M47S
    duration ms: 167026
    explicit: false
    by artist: marco
    in album: triplehouse
      type: MusicAlbum
      date published: 2023-09-03
    isrc code: QZKDK2266575
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T09:54:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb47ba8a82282d153c61038bda802e949933794b9d858f37a6ec0430a52be9b28
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958538
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958538
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKDK2266575
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T10:30:13Z
    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 0xb47ba8a82282d153c61038bda802e949933794b9d858f37a6ec0430a52be9b28. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZKDK2266575.
      date published: 2026-07-18T10:30:13Z
    audio: triplehouse
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128.04
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.679
      additional property: Energy
        type: PropertyValue
        value: 0.689
      additional property: Speechiness
        type: PropertyValue
        value: 0.505
      additional property: Acousticness
        type: PropertyValue
        value: 0.092
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.063
      additional property: Liveness
        type: PropertyValue
        value: 0.156
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.429
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.789
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: emitter
  type: MusicAlbum
  date published: 2023-09-11
album: dead man walking
  type: MusicAlbum
  date published: 2023-09-11
album: try
  type: MusicAlbum
  date published: 2023-09-11
album: savior
  type: MusicAlbum
  date published: 2023-09-11
album: love songs
  type: MusicAlbum
  date published: 2023-09-11
album: short bump
  type: MusicAlbum
  date published: 2023-09-11