Márcio Macedo
type: MusicGroup
popularity: 4
followers: 337
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x114598206d9d4d3e4a9f904d209a45ae5b3e910dd3cec51f8f2a3596205c0c9b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4dbab3bf-2487-48c7-bfc6-a2060ccd92ef.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4dbab3bf-2487-48c7-bfc6-a2060ccd92ef.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4dbab3bf-2487-48c7-bfc6-a2060ccd92ef
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x114598206d9d4d3e4a9f904d209a45ae5b3e910dd3cec51f8f2a3596205c0c9b","name":"Márcio Macedo","registered_at":"2026-06-16T16:45:32Z","symbol":"NIM1113400","token_address":"0xd5f3d071801f5b52d330fbcd5500e6a96fa30fc0","type":"artist","uuid":"4dbab3bf-2487-48c7-bfc6-a2060ccd92ef"}
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 0x114598206d9d4d3e4a9f904d209a45ae5b3e910dd3cec51f8f2a3596205c0c9b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4dbab3bf-2487-48c7-bfc6-a2060ccd92ef.json and https://artists.proofprofile.net/proofs/artist/4dbab3bf-2487-48c7-bfc6-a2060ccd92ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x114598206d9d4d3e4a9f904d209a45ae5b3e910dd3cec51f8f2a3596205c0c9b","name":"Márcio Macedo","registered_at":"2026-06-16T16:45:32Z","symbol":"NIM1113400","token_address":"0xd5f3d071801f5b52d330fbcd5500e6a96fa30fc0","type":"artist","uuid":"4dbab3bf-2487-48c7-bfc6-a2060ccd92ef"}
album: Mar Adentro
  type: MusicAlbum
  date published: 2021-03-10
album: Mar Adentro
  type: MusicAlbum
  date published: 2021-04-09
album: Jóias Bailarinas
  type: MusicAlbum
  date published: 2022-10-01
album: Negro Sol
  type: MusicAlbum
  date published: 2022-11-11
  track: Negro Sol
    type: MusicRecording
    duration: PT3M57S
    duration ms: 237326
    explicit: false
    by artist: Márcio Macedo
    in album: Negro Sol
      type: MusicAlbum
      date published: 2022-11-11
    isrc code: QZW9L2217725
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T18:00:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x75942fc062dac10d0326c86260e28638ff6237e3a7f1211d94b65c495d007f3c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958601
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958601
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2217725
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T19:27:02Z
    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 0x75942fc062dac10d0326c86260e28638ff6237e3a7f1211d94b65c495d007f3c. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZW9L2217725.
      date published: 2026-07-18T19:27:02Z
    audio: Negro Sol
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 202.269
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.439
      additional property: Energy
        type: PropertyValue
        value: 0.394
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.846
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.108
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.364
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.101
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Que Tudo Seja
  type: MusicAlbum
  date published: 2023-03-17
album: Dama do Rio
  type: MusicAlbum
  date published: 2025-01-11
album: Casa Caiada
  type: MusicAlbum
  date published: 2025-03-03