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 0x94604777d5dcf6d2023b03753bada7d5bd5185213ba4e91d97c029175cb038bd. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab546351-c186-4ec8-81b2-b289ce5cd31e.json and https://artists.proofprofile.net/proofs/artist/ab546351-c186-4ec8-81b2-b289ce5cd31e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dés & Geszti: A Pál Utcai Fiúk (Musical)
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 0xae1b9d0fbaffe786f93c62f1cc7ad626308d9a0a81f5bbc8ad7601879ec77b1a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HUA181625501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe545d8f5507ad0f88e928df843ac8f52fa36fb133f5af15fafc4e28205246c6e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HUA181625502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314f80f390ccb34ba3605b2d67bca56d722629d3896f767d33dfc238eb7ae108. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HUA181625503.
Éljen A Grund! - A Pál Utcai Fiúk Indulója
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b22bed85c6caa08740daa6aed8b6fb0c0382606c8085a414255140062f2211. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HUA181625504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28eab4b9a70f128868f7d9ca197e5dfd12cede8c629164571985bb8b5d10f5d8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HUA181625505.
Felveszem A Vörös Ingem - A Vörösingesek Indulója
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121b7d6bc5c4a3bbf82482d6b2195147e90a4bc53deecd702ce8f0823c7e7c56. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HUA181625506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874d7c9320c9d2c8ad69e51a79000656d3bd635f27a159cd74bf33c60031ab0c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HUA181625507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b79bd6c87bbba1151366315c8339167d7e5a0e98ea9a7f08162ca21016c350. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HUA181625508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606714c3b34464239abb17c3936aa103d8a6fece142d486207c626a69337a70d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HUA181625509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e30d9261da70f94379f2c26ebd80522607fc434baf14d1290ad573474568f1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HUA181625510.
Suttogják A Fák - A Lázas Nemecsek És Boka
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ec345654bf230c8a8a60bc3f592f72e9f246b5fc8fdd0d29e210c62f30c17a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HUA181625511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c5a6e742a560274d24eb3917354c45cee437fbe79c9365a98db05dd63d808f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HUA181625512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326d2495c270aae613674806b66017503b17f0c61455c73a8bd1fb79aa2cc86e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HUA181625513.