Marto
type: MusicGroup
genre: shoegaze
description: Marto may refer to the following people: Given name Marto Gracias (died 2016), Indian football player Surname António Marto (born 1947), Portuguese prelate Jacinta and Francisco Marto, (1908–191
popularity: 4
followers: 713
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc5d68f3dbb74fbb438f3a6ab14946c15c92622ba9c5888b3d5aa605f211d7cb2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953975
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953975
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b7f466f-419b-4fad-a46e-f6c70bf939ba.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b7f466f-419b-4fad-a46e-f6c70bf939ba.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2b7f466f-419b-4fad-a46e-f6c70bf939ba
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:53:41Z
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 0xc5d68f3dbb74fbb438f3a6ab14946c15c92622ba9c5888b3d5aa605f211d7cb2. Chain 2 (Bitcoin): anchored in block 953975 (2026-06-16T16:53:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b7f466f-419b-4fad-a46e-f6c70bf939ba.json and https://artists.proofprofile.net/proofs/artist/2b7f466f-419b-4fad-a46e-f6c70bf939ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:53:41Z
album: Миг непрочен
  type: MusicAlbum
  date published: 2022-01-07
album: Что поделать? / Jessy
  type: MusicAlbum
  date published: 2022-06-10
album: Martoxela
  type: MusicAlbum
  date published: 2023-03-08