Marc Bremer
type: MusicGroup
popularity: 16
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0f4c9f4e4eb3cb2ff73e3f2e4adf0650d87e6b9bda13c8e56858c9142ceb1d6c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953778
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953778
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3fff572-9d8a-47e0-aa54-9214e729ee53.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3fff572-9d8a-47e0-aa54-9214e729ee53.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d3fff572-9d8a-47e0-aa54-9214e729ee53
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:57:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0f4c9f4e4eb3cb2ff73e3f2e4adf0650d87e6b9bda13c8e56858c9142ceb1d6c","name":"Marc Bremer","registered_at":"2026-06-15T02:43:02Z","symbol":"NIM0656938","token_address":"0xb40d25fde34366296733d1054a625dda97865ba2","type":"artist","uuid":"d3fff572-9d8a-47e0-aa54-9214e729ee53"}
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 0x0f4c9f4e4eb3cb2ff73e3f2e4adf0650d87e6b9bda13c8e56858c9142ceb1d6c. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3fff572-9d8a-47e0-aa54-9214e729ee53.json and https://artists.proofprofile.net/proofs/artist/d3fff572-9d8a-47e0-aa54-9214e729ee53.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T19:59:56Z
  text: {"copyright_id":"0x0f4c9f4e4eb3cb2ff73e3f2e4adf0650d87e6b9bda13c8e56858c9142ceb1d6c","name":"Marc Bremer","registered_at":"2026-06-15T02:43:02Z","symbol":"NIM0656938","token_address":"0xb40d25fde34366296733d1054a625dda97865ba2","type":"artist","uuid":"d3fff572-9d8a-47e0-aa54-9214e729ee53"}