Джан Ку
type: MusicGroup
popularity: 2
followers: 472
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x42ebd4fb1728a24156b251a17c3720a9d4adbd9e53fc09d70d4d63275053f132
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/badacc74-7d1a-44bd-93b2-56ac950d5dcc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/badacc74-7d1a-44bd-93b2-56ac950d5dcc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/badacc74-7d1a-44bd-93b2-56ac950d5dcc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x42ebd4fb1728a24156b251a17c3720a9d4adbd9e53fc09d70d4d63275053f132","name":"Джан Ку","registered_at":"2026-06-20T17:05:43Z","symbol":"NIM1660870","token_address":"0x8839a970bf2bbb9864b6e022680d27547818df7a","type":"artist","uuid":"badacc74-7d1a-44bd-93b2-56ac950d5dcc"}
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 0x42ebd4fb1728a24156b251a17c3720a9d4adbd9e53fc09d70d4d63275053f132. 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/badacc74-7d1a-44bd-93b2-56ac950d5dcc.json and https://artists.proofprofile.net/proofs/artist/badacc74-7d1a-44bd-93b2-56ac950d5dcc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0x42ebd4fb1728a24156b251a17c3720a9d4adbd9e53fc09d70d4d63275053f132","name":"Джан Ку","registered_at":"2026-06-20T17:05:43Z","symbol":"NIM1660870","token_address":"0x8839a970bf2bbb9864b6e022680d27547818df7a","type":"artist","uuid":"badacc74-7d1a-44bd-93b2-56ac950d5dcc"}
album: Лабиринт
  type: MusicAlbum
  date published: 1999
album: Jan_Coo
  type: MusicAlbum
  date published: 1999-10-10
album: Эзотерика
  type: MusicAlbum
  date published: 2018-10-14
album: Синергия
  type: MusicAlbum
  date published: 2018-10-14
album: Гранж
  type: MusicAlbum
  date published: 2018-10-14
album: Дух и душа
  type: MusicAlbum
  date published: 2019-06-28
album: Осенение длится
  type: MusicAlbum
  date published: 2021-09-12
album: Псалом Ч
  type: MusicAlbum
  date published: 2023-06-09