Ленин
type: MusicGroup
popularity: 4
followers: 5
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2a8b165ee2f3ebfd4b4800c1c5903a4156cd22f6a4e0a71ee6e21ee37f03b599
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953915
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953915
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/195c344b-4c8a-4db9-8953-54d6a0c336fd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/195c344b-4c8a-4db9-8953-54d6a0c336fd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/195c344b-4c8a-4db9-8953-54d6a0c336fd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:36:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2a8b165ee2f3ebfd4b4800c1c5903a4156cd22f6a4e0a71ee6e21ee37f03b599","name":"Ленин","registered_at":"2026-06-15T22:37:19Z","symbol":"NIM0853619","token_address":"0x2047f38170d2b2bcdd678f0db37b4e47c08a76ea","type":"artist","uuid":"195c344b-4c8a-4db9-8953-54d6a0c336fd"}
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 0x2a8b165ee2f3ebfd4b4800c1c5903a4156cd22f6a4e0a71ee6e21ee37f03b599. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/195c344b-4c8a-4db9-8953-54d6a0c336fd.json and https://artists.proofprofile.net/proofs/artist/195c344b-4c8a-4db9-8953-54d6a0c336fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x2a8b165ee2f3ebfd4b4800c1c5903a4156cd22f6a4e0a71ee6e21ee37f03b599","name":"Ленин","registered_at":"2026-06-15T22:37:19Z","symbol":"NIM0853619","token_address":"0x2047f38170d2b2bcdd678f0db37b4e47c08a76ea","type":"artist","uuid":"195c344b-4c8a-4db9-8953-54d6a0c336fd"}