Bill Kahl
type: MusicGroup
genre: acid rock
popularity: 12
followers: 93
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe555f95cf5f03ddb930de402c6a821840533995129a36fc86dd14369e84eda7c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953750
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953750
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ac9d1443-1b53-447d-9833-cde69b2bdfb6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ac9d1443-1b53-447d-9833-cde69b2bdfb6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ac9d1443-1b53-447d-9833-cde69b2bdfb6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T06:12:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe555f95cf5f03ddb930de402c6a821840533995129a36fc86dd14369e84eda7c","name":"Bill Kahl","registered_at":"2026-06-14T22:35:44Z","symbol":"NIM0597858","token_address":"0x77f2e3759f527ef04a2921abf622b606c121bbe9","type":"artist","uuid":"ac9d1443-1b53-447d-9833-cde69b2bdfb6"}
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 0xe555f95cf5f03ddb930de402c6a821840533995129a36fc86dd14369e84eda7c. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac9d1443-1b53-447d-9833-cde69b2bdfb6.json and https://artists.proofprofile.net/proofs/artist/ac9d1443-1b53-447d-9833-cde69b2bdfb6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0xe555f95cf5f03ddb930de402c6a821840533995129a36fc86dd14369e84eda7c","name":"Bill Kahl","registered_at":"2026-06-14T22:35:44Z","symbol":"NIM0597858","token_address":"0x77f2e3759f527ef04a2921abf622b606c121bbe9","type":"artist","uuid":"ac9d1443-1b53-447d-9833-cde69b2bdfb6"}