Sam (Rapper)
type: MusicGroup
popularity: 2
followers: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe9fe953746b5fb644d91f081e934a8bde94e4f1f260e22583e704756e7e7dc61
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953923
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953923
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1bcb3a9d-340c-41f5-a0b7-56c4d2b82e26.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1bcb3a9d-340c-41f5-a0b7-56c4d2b82e26.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1bcb3a9d-340c-41f5-a0b7-56c4d2b82e26
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T09:51:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe9fe953746b5fb644d91f081e934a8bde94e4f1f260e22583e704756e7e7dc61","name":"Sam (Rapper)","registered_at":"2026-06-15T23:28:50Z","symbol":"NIM0865932","token_address":"0xa9ae66a1e83b1619dbeeb3b8dd0d81bc30966641","type":"artist","uuid":"1bcb3a9d-340c-41f5-a0b7-56c4d2b82e26"}
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 0xe9fe953746b5fb644d91f081e934a8bde94e4f1f260e22583e704756e7e7dc61. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1bcb3a9d-340c-41f5-a0b7-56c4d2b82e26.json and https://artists.proofprofile.net/proofs/artist/1bcb3a9d-340c-41f5-a0b7-56c4d2b82e26.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xe9fe953746b5fb644d91f081e934a8bde94e4f1f260e22583e704756e7e7dc61","name":"Sam (Rapper)","registered_at":"2026-06-15T23:28:50Z","symbol":"NIM0865932","token_address":"0xa9ae66a1e83b1619dbeeb3b8dd0d81bc30966641","type":"artist","uuid":"1bcb3a9d-340c-41f5-a0b7-56c4d2b82e26"}