Jakub Jakowicz
type: MusicGroup
genre: chamber music
popularity: 2
followers: 66
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9a96eba3933a2ca981d885100989969115fa02af6b14e1b04fcebfa372c4a49d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953851
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953851
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/022755c9-f44b-48d8-b669-81cb403da264.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/022755c9-f44b-48d8-b669-81cb403da264.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/022755c9-f44b-48d8-b669-81cb403da264
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T23:06:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9a96eba3933a2ca981d885100989969115fa02af6b14e1b04fcebfa372c4a49d","name":"Jakub Jakowicz","registered_at":"2026-06-15T14:13:12Z","symbol":"NIM0733351","token_address":"0xea15afe3da9757db7b08a998df8481b51f60798a","type":"artist","uuid":"022755c9-f44b-48d8-b669-81cb403da264"}
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 0x9a96eba3933a2ca981d885100989969115fa02af6b14e1b04fcebfa372c4a49d. Chain 2 (Bitcoin): anchored in block 953851 (2026-06-15T23:06:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/022755c9-f44b-48d8-b669-81cb403da264.json and https://artists.proofprofile.net/proofs/artist/022755c9-f44b-48d8-b669-81cb403da264.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T23:06:35Z
  text: {"copyright_id":"0x9a96eba3933a2ca981d885100989969115fa02af6b14e1b04fcebfa372c4a49d","name":"Jakub Jakowicz","registered_at":"2026-06-15T14:13:12Z","symbol":"NIM0733351","token_address":"0xea15afe3da9757db7b08a998df8481b51f60798a","type":"artist","uuid":"022755c9-f44b-48d8-b669-81cb403da264"}