Keymer Disc
type: MusicGroup
genre: champeta
popularity: 10
followers: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe8756321bb453e550dd2ae6f2b3b0d08bb823149d3106fb863641d24f95be908
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954035
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954035
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3d2bd1f8-27b2-4d92-99a3-677763086899.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3d2bd1f8-27b2-4d92-99a3-677763086899.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3d2bd1f8-27b2-4d92-99a3-677763086899
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:39:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe8756321bb453e550dd2ae6f2b3b0d08bb823149d3106fb863641d24f95be908","name":"Keymer Disc","registered_at":"2026-06-16T10:51:33Z","symbol":"NIM1028957","token_address":"0xd4ac1a882c63244cd48e19e878cc740b5e54e132","type":"artist","uuid":"3d2bd1f8-27b2-4d92-99a3-677763086899"}
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 0xe8756321bb453e550dd2ae6f2b3b0d08bb823149d3106fb863641d24f95be908. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d2bd1f8-27b2-4d92-99a3-677763086899.json and https://artists.proofprofile.net/proofs/artist/3d2bd1f8-27b2-4d92-99a3-677763086899.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xe8756321bb453e550dd2ae6f2b3b0d08bb823149d3106fb863641d24f95be908","name":"Keymer Disc","registered_at":"2026-06-16T10:51:33Z","symbol":"NIM1028957","token_address":"0xd4ac1a882c63244cd48e19e878cc740b5e54e132","type":"artist","uuid":"3d2bd1f8-27b2-4d92-99a3-677763086899"}
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