1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xa3e1c2a464a9ff468dd8d83e765c88c949785ef493e3c9dceb04753f6efe1f5e. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8981dc01-1aa9-40e9-8469-51259310f004.json and https://artists.proofprofile.net/proofs/artist/8981dc01-1aa9-40e9-8469-51259310f004.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Zkus Si Jednou Vyjít Sám - Příchuť Hořkých Mandlí
Zdá Se, Že Až Sem Ty Louky Voní - Píseň Uběžence
Zkus Si Jednou Vyjít Sám / Příchuť Hořkých Mandlí/
Písně domova (Pocta Jaroslavu Seifertovi)
Jiří Grossmann (Až Tě Náhodou Potkám - Zlatá Kolekce)
33 let v klidu - 33 legendárních hitů Country Radia
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 → block OTSBitcoinBlock must exist at that height 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 0x99e8f56d7968b64cecaadb041af7e4897a8e4c61370f0789a2fda556243d5e6f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CZA162001103.
Staletí Voní Šafránem - Z Alba Staré Pověst České