C. Keys
type: MusicGroup
popularity: 2
followers: 355
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb265ee2ac3c61719aa0dd2c1ecfd46cedbfc66c30e05de4d6569ffd28d072f1c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953943
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953943
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2181bb8c-9206-4d22-a58a-8ec730d476a7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2181bb8c-9206-4d22-a58a-8ec730d476a7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2181bb8c-9206-4d22-a58a-8ec730d476a7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:59:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb265ee2ac3c61719aa0dd2c1ecfd46cedbfc66c30e05de4d6569ffd28d072f1c","name":"C. Keys","registered_at":"2026-06-16T01:13:25Z","symbol":"NIM0890897","token_address":"0x2e28e01e417e2f861258c9674d7a825c5b6cbda0","type":"artist","uuid":"2181bb8c-9206-4d22-a58a-8ec730d476a7"}
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 0xb265ee2ac3c61719aa0dd2c1ecfd46cedbfc66c30e05de4d6569ffd28d072f1c. 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/2181bb8c-9206-4d22-a58a-8ec730d476a7.json and https://artists.proofprofile.net/proofs/artist/2181bb8c-9206-4d22-a58a-8ec730d476a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xb265ee2ac3c61719aa0dd2c1ecfd46cedbfc66c30e05de4d6569ffd28d072f1c","name":"C. Keys","registered_at":"2026-06-16T01:13:25Z","symbol":"NIM0890897","token_address":"0x2e28e01e417e2f861258c9674d7a825c5b6cbda0","type":"artist","uuid":"2181bb8c-9206-4d22-a58a-8ec730d476a7"}
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