YJ
type: MusicGroup
description: YJ or yJ may refer to: Arts and entertainment: Yahoo! Japan, a website Young Justice, a DC comic series Young Justice (TV series), TV series aired on Cartoon Network Young Justice: Legacy, video
popularity: 5
followers: 121
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf52315d302e1f472a5715fd762ce41ef1608cdbfcebfd70d4c40471d5e83b472
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef6335ee-f46a-464a-ae54-29187b1e73e0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef6335ee-f46a-464a-ae54-29187b1e73e0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ef6335ee-f46a-464a-ae54-29187b1e73e0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
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 0xf52315d302e1f472a5715fd762ce41ef1608cdbfcebfd70d4c40471d5e83b472. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef6335ee-f46a-464a-ae54-29187b1e73e0.json and https://artists.proofprofile.net/proofs/artist/ef6335ee-f46a-464a-ae54-29187b1e73e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
album: Because it is a woman
  type: MusicAlbum
  date published: 2014-01-06
album: Lover
  type: MusicAlbum
  date published: 2014-08-28
album: Single No.3
  type: MusicAlbum
  date published: 2017-06-02
album: Single No.3
  type: MusicAlbum
  date published: 2017-06-02
album: Handsome
  type: MusicAlbum
  date published: 2018-01-07
album: Freak
  type: MusicAlbum
  date published: 2018-01-22
album: Stay for Your Love
  type: MusicAlbum
  date published: 2018-05-30
album: G.R.E.A.T
  type: MusicAlbum
  date published: 2018-09-26
album: No Love No Pain
  type: MusicAlbum
  date published: 2019-07-13
album: Flow Caribeño
  type: MusicAlbum
  date published: 2020-08-20
album: 不期而遇
  type: MusicAlbum
  date published: 2022-07-13