Jay B
type: MusicGroup
description: Lim Jae-beom (; born January 6, 1994), known professionally as Jay B (; stylized in all caps), and formerly JB, is a South Korean singer, songwriter, and actor. Jay B is the leader of South Korean boy
popularity: 5
followers: 41
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd816419e5d2f4ab9ccd973adc6822a7b7d31c95f86dfe835fb8cb857f4edbb6d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b8af0045-b63b-4f0e-aecf-b1ebfb3578ad.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b8af0045-b63b-4f0e-aecf-b1ebfb3578ad.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b8af0045-b63b-4f0e-aecf-b1ebfb3578ad
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd816419e5d2f4ab9ccd973adc6822a7b7d31c95f86dfe835fb8cb857f4edbb6d","name":"Jay B","registered_at":"2026-06-20T16:01:44Z","symbol":"NIM1649403","token_address":"0xaf0a7c79ab9387d65209c0de783ed10234a6e2c2","type":"artist","uuid":"b8af0045-b63b-4f0e-aecf-b1ebfb3578ad"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd816419e5d2f4ab9ccd973adc6822a7b7d31c95f86dfe835fb8cb857f4edbb6d. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b8af0045-b63b-4f0e-aecf-b1ebfb3578ad.json and https://artists.proofprofile.net/proofs/artist/b8af0045-b63b-4f0e-aecf-b1ebfb3578ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0xd816419e5d2f4ab9ccd973adc6822a7b7d31c95f86dfe835fb8cb857f4edbb6d","name":"Jay B","registered_at":"2026-06-20T16:01:44Z","symbol":"NIM1649403","token_address":"0xaf0a7c79ab9387d65209c0de783ed10234a6e2c2","type":"artist","uuid":"b8af0045-b63b-4f0e-aecf-b1ebfb3578ad"}