Tostão
type: MusicGroup
description: Eduardo Gonçalves de Andrade (born 25 January 1947), generally known as Tostão (Brazilian Portuguese: [tosˈtɐ̃w̃]), is a Brazilian former professional footballer who played as a forward or attacking m
popularity: 13
followers: 31
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x85d9229b0125d20b481b86788653792a8c692468e4798bfd9dd96109af97c439
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953645
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953645
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/40cb6c49-d2c0-45ee-81c0-3f17ecc7fb47.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/40cb6c49-d2c0-45ee-81c0-3f17ecc7fb47.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/40cb6c49-d2c0-45ee-81c0-3f17ecc7fb47
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T14:31:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x85d9229b0125d20b481b86788653792a8c692468e4798bfd9dd96109af97c439","name":"Tostão","registered_at":"2026-06-14T11:16:30Z","symbol":"NIM0435853","token_address":"0x48e9cbe63b27080c141af9551c60639b0a08e77b","type":"artist","uuid":"40cb6c49-d2c0-45ee-81c0-3f17ecc7fb47"}
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 0x85d9229b0125d20b481b86788653792a8c692468e4798bfd9dd96109af97c439. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40cb6c49-d2c0-45ee-81c0-3f17ecc7fb47.json and https://artists.proofprofile.net/proofs/artist/40cb6c49-d2c0-45ee-81c0-3f17ecc7fb47.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T14:31:42Z
  text: {"copyright_id":"0x85d9229b0125d20b481b86788653792a8c692468e4798bfd9dd96109af97c439","name":"Tostão","registered_at":"2026-06-14T11:16:30Z","symbol":"NIM0435853","token_address":"0x48e9cbe63b27080c141af9551c60639b0a08e77b","type":"artist","uuid":"40cb6c49-d2c0-45ee-81c0-3f17ecc7fb47"}