João souza
type: MusicGroup
description: João Olavo Soares de Souza (; born 27 May 1988) is a Brazilian former professional tennis player. Souza competed mainly on the ATP Challenger Tour, both in singles and doubles. He reached his highest
popularity: 2
followers: 107
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa3442c92e77fb830f84ad5883edd6870413061cc1a28a7f3e9d2596b089eaefa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a81e0bd6-05fe-441b-aca1-286f9a6cafae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a81e0bd6-05fe-441b-aca1-286f9a6cafae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a81e0bd6-05fe-441b-aca1-286f9a6cafae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa3442c92e77fb830f84ad5883edd6870413061cc1a28a7f3e9d2596b089eaefa","name":"João souza","registered_at":"2026-06-20T08:29:57Z","symbol":"NIM1565538","token_address":"0x41bf914228d7eb7a69aac1485de552ab1d1fcdf0","type":"artist","uuid":"a81e0bd6-05fe-441b-aca1-286f9a6cafae"}
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 0xa3442c92e77fb830f84ad5883edd6870413061cc1a28a7f3e9d2596b089eaefa. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a81e0bd6-05fe-441b-aca1-286f9a6cafae.json and https://artists.proofprofile.net/proofs/artist/a81e0bd6-05fe-441b-aca1-286f9a6cafae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0xa3442c92e77fb830f84ad5883edd6870413061cc1a28a7f3e9d2596b089eaefa","name":"João souza","registered_at":"2026-06-20T08:29:57Z","symbol":"NIM1565538","token_address":"0x41bf914228d7eb7a69aac1485de552ab1d1fcdf0","type":"artist","uuid":"a81e0bd6-05fe-441b-aca1-286f9a6cafae"}
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  type: MusicAlbum
  date published: 2021-12-30
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  type: MusicAlbum
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