Jóia
type: MusicGroup
genre: chanson
description: thumb|alt=Jóia flag. The upper left diagonal is green and the bottom right diagonal is yellow. In the center is a red, blue, and yellow crest.|Jóia flag Jóia is a municipality in the state of Rio Gran
popularity: 2
followers: 21
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe3ddfc952004e2bf8ce6b6b85afcde562e78c5313ddc43d9b65bd9a5b70ef1d6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a2e298ac-4e28-4388-a362-8da77d44c051.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a2e298ac-4e28-4388-a362-8da77d44c051.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a2e298ac-4e28-4388-a362-8da77d44c051
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe3ddfc952004e2bf8ce6b6b85afcde562e78c5313ddc43d9b65bd9a5b70ef1d6","name":"Jóia","registered_at":"2026-06-20T06:11:10Z","symbol":"NIM1536467","token_address":"0x2737f9e826a5d4eb645641473fdd8cbff710ad04","type":"artist","uuid":"a2e298ac-4e28-4388-a362-8da77d44c051"}
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 0xe3ddfc952004e2bf8ce6b6b85afcde562e78c5313ddc43d9b65bd9a5b70ef1d6. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2e298ac-4e28-4388-a362-8da77d44c051.json and https://artists.proofprofile.net/proofs/artist/a2e298ac-4e28-4388-a362-8da77d44c051.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0xe3ddfc952004e2bf8ce6b6b85afcde562e78c5313ddc43d9b65bd9a5b70ef1d6","name":"Jóia","registered_at":"2026-06-20T06:11:10Z","symbol":"NIM1536467","token_address":"0x2737f9e826a5d4eb645641473fdd8cbff710ad04","type":"artist","uuid":"a2e298ac-4e28-4388-a362-8da77d44c051"}
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