Anna Stawieraj
type: MusicGroup
popularity: 4
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ddbb4cc665c86e3f6a63bdd8ed6072713560a33aa2843c3498c89df68d2fbfb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7c7a405-9557-4390-a806-3410d563f840.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7c7a405-9557-4390-a806-3410d563f840.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a7c7a405-9557-4390-a806-3410d563f840
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2ddbb4cc665c86e3f6a63bdd8ed6072713560a33aa2843c3498c89df68d2fbfb","name":"Anna Stawieraj","registered_at":"2026-06-20T08:37:44Z","symbol":"NIM1567558","token_address":"0x8fd0be16b2bd2c3c9083604a80c7e1c1f05d2d06","type":"artist","uuid":"a7c7a405-9557-4390-a806-3410d563f840"}
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 0x2ddbb4cc665c86e3f6a63bdd8ed6072713560a33aa2843c3498c89df68d2fbfb. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7c7a405-9557-4390-a806-3410d563f840.json and https://artists.proofprofile.net/proofs/artist/a7c7a405-9557-4390-a806-3410d563f840.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x2ddbb4cc665c86e3f6a63bdd8ed6072713560a33aa2843c3498c89df68d2fbfb","name":"Anna Stawieraj","registered_at":"2026-06-20T08:37:44Z","symbol":"NIM1567558","token_address":"0x8fd0be16b2bd2c3c9083604a80c7e1c1f05d2d06","type":"artist","uuid":"a7c7a405-9557-4390-a806-3410d563f840"}