D'r Sam
type: MusicGroup
popularity: 4
followers: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x27a0c54368c9ca469a5aa74fbb16037c386e33d647e231116d27b0285881b0e6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/521603b9-0ce3-47c8-8e2d-bf93ceb1038a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/521603b9-0ce3-47c8-8e2d-bf93ceb1038a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/521603b9-0ce3-47c8-8e2d-bf93ceb1038a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x27a0c54368c9ca469a5aa74fbb16037c386e33d647e231116d27b0285881b0e6","name":"D'r Sam","registered_at":"2026-06-16T18:11:00Z","symbol":"NIM1133794","token_address":"0x3e71e8c4de62bbbd8ab835c2a7c35ee226944c26","type":"artist","uuid":"521603b9-0ce3-47c8-8e2d-bf93ceb1038a"}
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 0x27a0c54368c9ca469a5aa74fbb16037c386e33d647e231116d27b0285881b0e6. 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/521603b9-0ce3-47c8-8e2d-bf93ceb1038a.json and https://artists.proofprofile.net/proofs/artist/521603b9-0ce3-47c8-8e2d-bf93ceb1038a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x27a0c54368c9ca469a5aa74fbb16037c386e33d647e231116d27b0285881b0e6","name":"D'r Sam","registered_at":"2026-06-16T18:11:00Z","symbol":"NIM1133794","token_address":"0x3e71e8c4de62bbbd8ab835c2a7c35ee226944c26","type":"artist","uuid":"521603b9-0ce3-47c8-8e2d-bf93ceb1038a"}