Cissa Guimarães
type: MusicGroup
description: Beatriz Gentil Pinheiro "Cissa" Guimarães (born April 18, 1957) is a Brazilian television presenter and actress.Cissa Guimarães Estrelato.com Biography Guimarães began her artistic career in 1977, wh
popularity: 5
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x99c473013610f0036c4f9678b9a4bfc79b82a8382a868292b61db664faae2b25
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c2f0955a-be9c-4a99-9692-f16d1b2f7740.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c2f0955a-be9c-4a99-9692-f16d1b2f7740.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c2f0955a-be9c-4a99-9692-f16d1b2f7740
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x99c473013610f0036c4f9678b9a4bfc79b82a8382a868292b61db664faae2b25","name":"Cissa Guimarães","registered_at":"2026-06-20T20:15:36Z","symbol":"NIM1700817","token_address":"0xd257a533ab88f7f6b466530948f01cedd79584b2","type":"artist","uuid":"c2f0955a-be9c-4a99-9692-f16d1b2f7740"}
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 0x99c473013610f0036c4f9678b9a4bfc79b82a8382a868292b61db664faae2b25. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2f0955a-be9c-4a99-9692-f16d1b2f7740.json and https://artists.proofprofile.net/proofs/artist/c2f0955a-be9c-4a99-9692-f16d1b2f7740.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x99c473013610f0036c4f9678b9a4bfc79b82a8382a868292b61db664faae2b25","name":"Cissa Guimarães","registered_at":"2026-06-20T20:15:36Z","symbol":"NIM1700817","token_address":"0xd257a533ab88f7f6b466530948f01cedd79584b2","type":"artist","uuid":"c2f0955a-be9c-4a99-9692-f16d1b2f7740"}