Marcos Helleno
type: MusicGroup
genre: arrocha
genre: piseiro
genre: seresta
popularity: 2
followers: 307
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8042319a0f500a5e8e92718a9cf4550609a6b4d8a12acc2c73386337952ccb16
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954058
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954058
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4515f356-717a-4da7-8fe2-56b4012db7fe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4515f356-717a-4da7-8fe2-56b4012db7fe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4515f356-717a-4da7-8fe2-56b4012db7fe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T06:34:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8042319a0f500a5e8e92718a9cf4550609a6b4d8a12acc2c73386337952ccb16","name":"Marcos Helleno","registered_at":"2026-06-16T13:38:46Z","symbol":"NIM1068831","token_address":"0x699b2a53e7376db1128a3c1bc2d980f3c5df8ea9","type":"artist","uuid":"4515f356-717a-4da7-8fe2-56b4012db7fe"}
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 0x8042319a0f500a5e8e92718a9cf4550609a6b4d8a12acc2c73386337952ccb16. Chain 2 (Bitcoin): anchored in block 954058 (2026-06-17T06:34:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4515f356-717a-4da7-8fe2-56b4012db7fe.json and https://artists.proofprofile.net/proofs/artist/4515f356-717a-4da7-8fe2-56b4012db7fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T06:34:31Z
  text: {"copyright_id":"0x8042319a0f500a5e8e92718a9cf4550609a6b4d8a12acc2c73386337952ccb16","name":"Marcos Helleno","registered_at":"2026-06-16T13:38:46Z","symbol":"NIM1068831","token_address":"0x699b2a53e7376db1128a3c1bc2d980f3c5df8ea9","type":"artist","uuid":"4515f356-717a-4da7-8fe2-56b4012db7fe"}
album: Namorar Não Dá
  type: MusicAlbum
  date published: 2022-03-10
album: Esquema é Esquema
  type: MusicAlbum
  date published: 2022-03-15
album: Goodbye
  type: MusicAlbum
  date published: 2022-04-14
album: Intense
  type: MusicAlbum
  date published: 2022-08-19
album: Pode Pisar
  type: MusicAlbum
  date published: 2022-09-02
album: Não Tem Perdão
  type: MusicAlbum
  date published: 2022-09-09
album: Me Enche de Stories
  type: MusicAlbum
  date published: 2022-09-16
album: Dependente Emocional
  type: MusicAlbum
  date published: 2022-09-23
album: Seu Ex
  type: MusicAlbum
  date published: 2022-10-14
album: Que Falta Cê Faz Aqui
  type: MusicAlbum
  date published: 2022-10-28
album: Serestando
  type: MusicAlbum
  date published: 2022-11-03
album: Bebendo Mais Que Opala
  type: MusicAlbum
  date published: 2022-11-18
album: Vem Mandar N'eu
  type: MusicAlbum
  date published: 2022-12-02
album: Serestando, Pt.2
  type: MusicAlbum
  date published: 2022-12-02
album: Ao Vivo Em Aracajú
  type: MusicAlbum
  date published: 2022-12-27
album: Serestando e Sofrendo (Pra Paredão)
  type: MusicAlbum
  date published: 2023-05-19
album: Botão De Cancelar
  type: MusicAlbum
  date published: 2023-06-16
album: Serestando e Sofrendo 2.0
  type: MusicAlbum
  date published: 2023-06-16
album: Machucando O Coração
  type: MusicAlbum
  date published: 2023-09-06
album: Cabaré do MH (Brega é Brega)
  type: MusicAlbum
  date published: 2024-09-15