Maria Gadú
type: MusicGroup
description: Mayra Corrêa Aygadoux (born 4 December 1986), known professionally as Maria Gadú, is a Brazilian singer, songwriter and guitarist. Gadú has been nominated twice for a Latin Grammy Award. She release
popularity: 2
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe73cc6730bf9b95b61661be9b3c13cc0bc34d19637a657d26c27d305c8f609eb
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/dec8669a-d9f2-42d0-96ab-7a413eb4e794.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dec8669a-d9f2-42d0-96ab-7a413eb4e794.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dec8669a-d9f2-42d0-96ab-7a413eb4e794
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe73cc6730bf9b95b61661be9b3c13cc0bc34d19637a657d26c27d305c8f609eb","name":"Maria Gadú","registered_at":"2026-06-21T06:05:07Z","symbol":"NIM1839101","token_address":"0x6c1ab78a8c7e18b3c21896f79f999943b45bac49","type":"artist","uuid":"dec8669a-d9f2-42d0-96ab-7a413eb4e794"}
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 0xe73cc6730bf9b95b61661be9b3c13cc0bc34d19637a657d26c27d305c8f609eb. 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/dec8669a-d9f2-42d0-96ab-7a413eb4e794.json and https://artists.proofprofile.net/proofs/artist/dec8669a-d9f2-42d0-96ab-7a413eb4e794.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xe73cc6730bf9b95b61661be9b3c13cc0bc34d19637a657d26c27d305c8f609eb","name":"Maria Gadú","registered_at":"2026-06-21T06:05:07Z","symbol":"NIM1839101","token_address":"0x6c1ab78a8c7e18b3c21896f79f999943b45bac49","type":"artist","uuid":"dec8669a-d9f2-42d0-96ab-7a413eb4e794"}