Sandy & Junior
type: MusicGroup
description: Sandy & Junior were a Brazilian pop music duo consisting of siblings Sandy Leah Lima (born January 28, 1983) and Durval de Lima Júnior (born April 11, 1984). They first gained fame as the children of
popularity: 3
followers: 84
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6c281baf30bfa04d0870f9aacce6d174b5410c788456320d05095ca4ce3d6418
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/489ddfe5-6854-4ad6-9d64-78cdcbdbf993.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/489ddfe5-6854-4ad6-9d64-78cdcbdbf993.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/489ddfe5-6854-4ad6-9d64-78cdcbdbf993
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6c281baf30bfa04d0870f9aacce6d174b5410c788456320d05095ca4ce3d6418","name":"Sandy & Junior","registered_at":"2026-06-16T14:51:12Z","symbol":"NIM1086120","token_address":"0xde662949eae3dc6e8e5f5088c3af2f3174e90e72","type":"artist","uuid":"489ddfe5-6854-4ad6-9d64-78cdcbdbf993"}
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 0x6c281baf30bfa04d0870f9aacce6d174b5410c788456320d05095ca4ce3d6418. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/489ddfe5-6854-4ad6-9d64-78cdcbdbf993.json and https://artists.proofprofile.net/proofs/artist/489ddfe5-6854-4ad6-9d64-78cdcbdbf993.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x6c281baf30bfa04d0870f9aacce6d174b5410c788456320d05095ca4ce3d6418","name":"Sandy & Junior","registered_at":"2026-06-16T14:51:12Z","symbol":"NIM1086120","token_address":"0xde662949eae3dc6e8e5f5088c3af2f3174e90e72","type":"artist","uuid":"489ddfe5-6854-4ad6-9d64-78cdcbdbf993"}