Mike C da Champ
type: MusicGroup
popularity: 4
followers: 620
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfc1a1830791a2b30037336ace407c64ec774f1f0eaad2688ec441dbfa7b5c17d
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/e22e1fef-2bfa-4d29-b70e-38e09453fc70.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e22e1fef-2bfa-4d29-b70e-38e09453fc70.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e22e1fef-2bfa-4d29-b70e-38e09453fc70
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T10:35:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfc1a1830791a2b30037336ace407c64ec774f1f0eaad2688ec441dbfa7b5c17d","name":"Mike C da Champ","registered_at":"2026-06-21T07:09:25Z","symbol":"NIM1857437","token_address":"0x365c1fe8cff777e83810c278441ba5364c893c21","type":"artist","uuid":"e22e1fef-2bfa-4d29-b70e-38e09453fc70"}
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 0xfc1a1830791a2b30037336ace407c64ec774f1f0eaad2688ec441dbfa7b5c17d. 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/e22e1fef-2bfa-4d29-b70e-38e09453fc70.json and https://artists.proofprofile.net/proofs/artist/e22e1fef-2bfa-4d29-b70e-38e09453fc70.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T10:35:31Z
  text: {"copyright_id":"0xfc1a1830791a2b30037336ace407c64ec774f1f0eaad2688ec441dbfa7b5c17d","name":"Mike C da Champ","registered_at":"2026-06-21T07:09:25Z","symbol":"NIM1857437","token_address":"0x365c1fe8cff777e83810c278441ba5364c893c21","type":"artist","uuid":"e22e1fef-2bfa-4d29-b70e-38e09453fc70"}
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