João
type: MusicGroup
description: thumb|right João is a given name of Portuguese origin. It is equivalent to the given name John. The diminutive is Joãozinho and the feminine is Joana. It is widespread in Portuguese-speaking countrie
popularity: 4
followers: 5
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xee70eab520b6e78bba19f8436170e348c884cbb7e710aedfce93cdcf40e9238e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ee1b9a99-1c7c-4c2b-9ee6-777aa2e45a5b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ee1b9a99-1c7c-4c2b-9ee6-777aa2e45a5b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ee1b9a99-1c7c-4c2b-9ee6-777aa2e45a5b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xee70eab520b6e78bba19f8436170e348c884cbb7e710aedfce93cdcf40e9238e","name":"João","registered_at":"2026-06-21T12:20:29Z","symbol":"NIM1921949","token_address":"0x7fa0771f7fd150fb27ec21108b90f3febb508443","type":"artist","uuid":"ee1b9a99-1c7c-4c2b-9ee6-777aa2e45a5b"}
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 0xee70eab520b6e78bba19f8436170e348c884cbb7e710aedfce93cdcf40e9238e. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee1b9a99-1c7c-4c2b-9ee6-777aa2e45a5b.json and https://artists.proofprofile.net/proofs/artist/ee1b9a99-1c7c-4c2b-9ee6-777aa2e45a5b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xee70eab520b6e78bba19f8436170e348c884cbb7e710aedfce93cdcf40e9238e","name":"João","registered_at":"2026-06-21T12:20:29Z","symbol":"NIM1921949","token_address":"0x7fa0771f7fd150fb27ec21108b90f3febb508443","type":"artist","uuid":"ee1b9a99-1c7c-4c2b-9ee6-777aa2e45a5b"}