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 0x826680249ae1bbf21d4f4f6913877be3e5dbb1e7b61af4281cffecf6fd46ab27. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0903b34c-6f3e-4ae7-8910-9122cb0914f0.json and https://artists.proofprofile.net/proofs/artist/0903b34c-6f3e-4ae7-8910-9122cb0914f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Głęboka Studzienka Największe Przeboje Biesiadne
Głęboka Studzienka. Największe przeboje biesiadne
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 0xf9729efdcc20b8128ad2a4b117035d2f36541efb252a8e0dfed956b856287d45. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:36:00Z), 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/PLJ051301233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9361e68f9d2cf9d6bd137f0a6befb2ad1e97d3e52e59b5becb3873344378fe11. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/PLJ051301247.
Gleboka Studzienka Najwieksze Przeboje Biesiadne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86679b28fea45c61cec324e980ad526d8399815b706dc09a8a5311b02023b9a0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/PLJ051300178.
Hej sokoły. Największe przeboje biesiadne
Samotny Lesny Kwiat Najwieksze Przeboje Biesiadne