Martin Kocián
type: MusicGroup
popularity: 11
followers: 147
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7f1ec180ca52a56306bca48cca29a2c5b22a294d9177a6d3cfa8ad7a685a92fc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953704
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953704
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a223b6e-ed65-4b44-93d5-36dcd7834014.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a223b6e-ed65-4b44-93d5-36dcd7834014.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7a223b6e-ed65-4b44-93d5-36dcd7834014
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:58:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7f1ec180ca52a56306bca48cca29a2c5b22a294d9177a6d3cfa8ad7a685a92fc","name":"Martin Kocián","registered_at":"2026-06-14T17:20:11Z","symbol":"NIM0522632","token_address":"0xd5614a6714a67a9ed0b7e7ca59ebc3c8d1238fc3","type":"artist","uuid":"7a223b6e-ed65-4b44-93d5-36dcd7834014"}
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 0x7f1ec180ca52a56306bca48cca29a2c5b22a294d9177a6d3cfa8ad7a685a92fc. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a223b6e-ed65-4b44-93d5-36dcd7834014.json and https://artists.proofprofile.net/proofs/artist/7a223b6e-ed65-4b44-93d5-36dcd7834014.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:58:38Z
  text: {"copyright_id":"0x7f1ec180ca52a56306bca48cca29a2c5b22a294d9177a6d3cfa8ad7a685a92fc","name":"Martin Kocián","registered_at":"2026-06-14T17:20:11Z","symbol":"NIM0522632","token_address":"0xd5614a6714a67a9ed0b7e7ca59ebc3c8d1238fc3","type":"artist","uuid":"7a223b6e-ed65-4b44-93d5-36dcd7834014"}