M.C. Sam
type: MusicGroup
popularity: 14
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfebc400a150acdec065f42801fffe95ff45f8a3ae32a700ad588024bdd3c3474
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953614
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953614
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/18a42a9d-3ad2-4fb9-b12f-6b5f7615e0c7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/18a42a9d-3ad2-4fb9-b12f-6b5f7615e0c7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/18a42a9d-3ad2-4fb9-b12f-6b5f7615e0c7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T08:40:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfebc400a150acdec065f42801fffe95ff45f8a3ae32a700ad588024bdd3c3474","name":"M.C. Sam","registered_at":"2026-06-14T06:59:04Z","symbol":"NIM0374449","token_address":"0x72212c2a08e7aaa908ee1954316c5979c23bd27b","type":"artist","uuid":"18a42a9d-3ad2-4fb9-b12f-6b5f7615e0c7"}
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 0xfebc400a150acdec065f42801fffe95ff45f8a3ae32a700ad588024bdd3c3474. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/18a42a9d-3ad2-4fb9-b12f-6b5f7615e0c7.json and https://artists.proofprofile.net/proofs/artist/18a42a9d-3ad2-4fb9-b12f-6b5f7615e0c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T08:58:35Z
  text: {"copyright_id":"0xfebc400a150acdec065f42801fffe95ff45f8a3ae32a700ad588024bdd3c3474","name":"M.C. Sam","registered_at":"2026-06-14T06:59:04Z","symbol":"NIM0374449","token_address":"0x72212c2a08e7aaa908ee1954316c5979c23bd27b","type":"artist","uuid":"18a42a9d-3ad2-4fb9-b12f-6b5f7615e0c7"}
album: De waarheid over Chan
  type: MusicAlbum
  date published: 2025-05-28