Agata Grześkiewicz
type: MusicGroup
popularity: 18
followers: 433
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8f1cca96bdeaaa3e4c95b347c2b139ab70e8ba01c303f94425dc498cc27eaad
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953791
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953791
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/de8b5b71-566b-4d10-9b84-af14429462be.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/de8b5b71-566b-4d10-9b84-af14429462be.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/de8b5b71-566b-4d10-9b84-af14429462be
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb8f1cca96bdeaaa3e4c95b347c2b139ab70e8ba01c303f94425dc498cc27eaad","name":"Agata Grześkiewicz","registered_at":"2026-06-15T04:02:01Z","symbol":"NIM0675796","token_address":"0x53af829f40ca73f43d21c4d30aa49d4f8ed2a4cc","type":"artist","uuid":"de8b5b71-566b-4d10-9b84-af14429462be"}
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 0xb8f1cca96bdeaaa3e4c95b347c2b139ab70e8ba01c303f94425dc498cc27eaad. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de8b5b71-566b-4d10-9b84-af14429462be.json and https://artists.proofprofile.net/proofs/artist/de8b5b71-566b-4d10-9b84-af14429462be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:40:30Z
  text: {"copyright_id":"0xb8f1cca96bdeaaa3e4c95b347c2b139ab70e8ba01c303f94425dc498cc27eaad","name":"Agata Grześkiewicz","registered_at":"2026-06-15T04:02:01Z","symbol":"NIM0675796","token_address":"0x53af829f40ca73f43d21c4d30aa49d4f8ed2a4cc","type":"artist","uuid":"de8b5b71-566b-4d10-9b84-af14429462be"}
album: Wybacz, że mnie nie ma
  type: MusicAlbum
  date published: 2013-05-18
album: Chyba byłoby mi źle
  type: MusicAlbum
  date published: 2013-09-26
album: Jestem białą kartką
  type: MusicAlbum
  date published: 2014-03-09
album: Nienawidzę poniedziałków
  type: MusicAlbum
  date published: 2014-09-22