Chema Grajales
type: MusicGroup
popularity: 10
followers: 319
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x66ac066193a3440da2c9058328489952a259742a571b84a19058130b9577afed
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953888
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953888
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0d307640-1b80-40a4-b846-8c013fcc5b33.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0d307640-1b80-40a4-b846-8c013fcc5b33.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0d307640-1b80-40a4-b846-8c013fcc5b33
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:55:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x66ac066193a3440da2c9058328489952a259742a571b84a19058130b9577afed","name":"Chema Grajales","registered_at":"2026-06-15T18:20:21Z","symbol":"NIM0792349","token_address":"0x6401e8b322eb2d61a81e99593f6db5c0cb68f46d","type":"artist","uuid":"0d307640-1b80-40a4-b846-8c013fcc5b33"}
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 0x66ac066193a3440da2c9058328489952a259742a571b84a19058130b9577afed. Chain 2 (Bitcoin): anchored in block 953888 (2026-06-16T04:55:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d307640-1b80-40a4-b846-8c013fcc5b33.json and https://artists.proofprofile.net/proofs/artist/0d307640-1b80-40a4-b846-8c013fcc5b33.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T04:55:23Z
  text: {"copyright_id":"0x66ac066193a3440da2c9058328489952a259742a571b84a19058130b9577afed","name":"Chema Grajales","registered_at":"2026-06-15T18:20:21Z","symbol":"NIM0792349","token_address":"0x6401e8b322eb2d61a81e99593f6db5c0cb68f46d","type":"artist","uuid":"0d307640-1b80-40a4-b846-8c013fcc5b33"}
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