Robert Grass
type: MusicGroup
popularity: 5
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x912bd09c307190d739c8db076e4c83dd9da16f7370f3aba5377e7e0825eb17c0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953922
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953922
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a9a90f2-cb20-4e84-abcf-4f05a5b43aeb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a9a90f2-cb20-4e84-abcf-4f05a5b43aeb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1a9a90f2-cb20-4e84-abcf-4f05a5b43aeb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T09:36:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x912bd09c307190d739c8db076e4c83dd9da16f7370f3aba5377e7e0825eb17c0","name":"Robert Grass","registered_at":"2026-06-15T23:03:40Z","symbol":"NIM0859910","token_address":"0x0d85cd4cb0e9aa9843fefef36bd6013c28f3f863","type":"artist","uuid":"1a9a90f2-cb20-4e84-abcf-4f05a5b43aeb"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912bd09c307190d739c8db076e4c83dd9da16f7370f3aba5377e7e0825eb17c0. Chain 2 (Bitcoin): anchored in block 953922 (2026-06-16T09:36:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a9a90f2-cb20-4e84-abcf-4f05a5b43aeb.json and https://artists.proofprofile.net/proofs/artist/1a9a90f2-cb20-4e84-abcf-4f05a5b43aeb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T09:36:34Z
  text: {"copyright_id":"0x912bd09c307190d739c8db076e4c83dd9da16f7370f3aba5377e7e0825eb17c0","name":"Robert Grass","registered_at":"2026-06-15T23:03:40Z","symbol":"NIM0859910","token_address":"0x0d85cd4cb0e9aa9843fefef36bd6013c28f3f863","type":"artist","uuid":"1a9a90f2-cb20-4e84-abcf-4f05a5b43aeb"}