A. Mamontovas
type: MusicGroup
popularity: 10
followers: 48
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3c45a86083cf91f99b205271249884edfb7478cae0afb2007f5916fb5507b53c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953996
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953996
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30cf1e6c-59d4-4819-bc59-50043c4e98e1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30cf1e6c-59d4-4819-bc59-50043c4e98e1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/30cf1e6c-59d4-4819-bc59-50043c4e98e1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:04:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3c45a86083cf91f99b205271249884edfb7478cae0afb2007f5916fb5507b53c","name":"A. Mamontovas","registered_at":"2026-06-16T06:35:04Z","symbol":"NIM0967735","token_address":"0xd689193796d9a4473e5c7a42a886a6f4965af903","type":"artist","uuid":"30cf1e6c-59d4-4819-bc59-50043c4e98e1"}
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 0x3c45a86083cf91f99b205271249884edfb7478cae0afb2007f5916fb5507b53c. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30cf1e6c-59d4-4819-bc59-50043c4e98e1.json and https://artists.proofprofile.net/proofs/artist/30cf1e6c-59d4-4819-bc59-50043c4e98e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0x3c45a86083cf91f99b205271249884edfb7478cae0afb2007f5916fb5507b53c","name":"A. Mamontovas","registered_at":"2026-06-16T06:35:04Z","symbol":"NIM0967735","token_address":"0xd689193796d9a4473e5c7a42a886a6f4965af903","type":"artist","uuid":"30cf1e6c-59d4-4819-bc59-50043c4e98e1"}