Big Ocean
type: MusicGroup
description: Big Ocean () is the first hard of hearing South Korean boy band, formed under Parastar Entertainment. The group consists of three members: Lee Chan-yeon, PJ, and Kim Ji-seok. They debuted on April 20,
popularity: 2
followers: 463
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x82f405c49c0ebefb671936b00f13dac705567b26418da9cc7ad528c9d8b25f8d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954689
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954689
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e26a41ba-4ce6-40ce-8662-1d7b9b74d1f6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e26a41ba-4ce6-40ce-8662-1d7b9b74d1f6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e26a41ba-4ce6-40ce-8662-1d7b9b74d1f6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T10:35:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x82f405c49c0ebefb671936b00f13dac705567b26418da9cc7ad528c9d8b25f8d","name":"Big Ocean","registered_at":"2026-06-21T06:55:03Z","symbol":"NIM1854897","token_address":"0xad9fcdb9a4f8ebe1662318ce30ba77922944094c","type":"artist","uuid":"e26a41ba-4ce6-40ce-8662-1d7b9b74d1f6"}
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 0x82f405c49c0ebefb671936b00f13dac705567b26418da9cc7ad528c9d8b25f8d. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e26a41ba-4ce6-40ce-8662-1d7b9b74d1f6.json and https://artists.proofprofile.net/proofs/artist/e26a41ba-4ce6-40ce-8662-1d7b9b74d1f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T10:35:31Z
  text: {"copyright_id":"0x82f405c49c0ebefb671936b00f13dac705567b26418da9cc7ad528c9d8b25f8d","name":"Big Ocean","registered_at":"2026-06-21T06:55:03Z","symbol":"NIM1854897","token_address":"0xad9fcdb9a4f8ebe1662318ce30ba77922944094c","type":"artist","uuid":"e26a41ba-4ce6-40ce-8662-1d7b9b74d1f6"}
album: Scoreboard
  type: MusicAlbum
  date published: 2020-11-09
album: Three Peat
  type: MusicAlbum
  date published: 2020-12-31
album: SOMETHING NEW
  type: MusicAlbum
  date published: 2021-05-21
album: Scoreboard, Pt. 2 (feat. BlueBucksClan)
  type: MusicAlbum
  date published: 2021-06-02
album: IM HIM (feat. Gee El, Figg Newton, Siete Gang Yabbie & Pimpsy)
  type: MusicAlbum
  date published: 2022-05-22