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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48cd86b19e211244fb11fae26d86814a8a0005f2431ca5833768deaf75b3b6a. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed7762dc-011a-4c63-a709-08acb77f0066.json and https://artists.proofprofile.net/proofs/artist/ed7762dc-011a-4c63-a709-08acb77f0066.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Patrząc z góry RSJ PONAD TYM WSZYSTKIM 2006
Na Zakończenie / RSJ 'Ponad Tym Wszystkim' LP
Tu Gdzie Mieszkamy - RSJ - O TYM PISZĘ 2007
Na Letni Wieczór- RSJ - O TYM PISZĘ 2007
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b597d1c9c159855a6d1d3aab175dbbdacc29f7c808043d82a23646e63bef6c1. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:12:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYZ2047934.
Moja Księżniczko (czyli: Miłość w czasach zarazy)
W murowanej piwnicy REMIX (Special Version)