Janaína
type: MusicGroup
description: Janaína Queiroz Cavalcante (born 2 April 1988), known as Janaína or just Jana, is a Brazilian footballer who plays for 3B da Amazônia. A centre-back, her strongest attributes are marking and heading.
popularity: 2
followers: 141
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd715d87f6676cd3639d9e8f50646945a86d7bca06b4a18e4f59a52f4962a0feb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954025
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954025
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/38519f10-bf62-4b93-b6e1-7f8ab1a7cc4c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/38519f10-bf62-4b93-b6e1-7f8ab1a7cc4c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/38519f10-bf62-4b93-b6e1-7f8ab1a7cc4c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T00:32:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd715d87f6676cd3639d9e8f50646945a86d7bca06b4a18e4f59a52f4962a0feb","name":"Janaína","registered_at":"2026-06-16T09:10:54Z","symbol":"NIM1004937","token_address":"0x7933f72bc82c6a92dfb5f573536161d42e92002c","type":"artist","uuid":"38519f10-bf62-4b93-b6e1-7f8ab1a7cc4c"}
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 0xd715d87f6676cd3639d9e8f50646945a86d7bca06b4a18e4f59a52f4962a0feb. Chain 2 (Bitcoin): anchored in block 954027 (2026-06-17T00:55:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38519f10-bf62-4b93-b6e1-7f8ab1a7cc4c.json and https://artists.proofprofile.net/proofs/artist/38519f10-bf62-4b93-b6e1-7f8ab1a7cc4c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T00:55:08Z
  text: {"copyright_id":"0xd715d87f6676cd3639d9e8f50646945a86d7bca06b4a18e4f59a52f4962a0feb","name":"Janaína","registered_at":"2026-06-16T09:10:54Z","symbol":"NIM1004937","token_address":"0x7933f72bc82c6a92dfb5f573536161d42e92002c","type":"artist","uuid":"38519f10-bf62-4b93-b6e1-7f8ab1a7cc4c"}
album: Frisson
  type: MusicAlbum
  date published: 2013-06-30
album: Covers
  type: MusicAlbum
  date published: 2016-01-04
album: Dia Branco
  type: MusicAlbum
  date published: 2018-01-07