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 0xd25acf81b1454306823748ed36ff9453b9bea7973a0e2eef51ba4dddc9c9b4b6. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6cd8760-17eb-4a05-8a01-e9eac9bf1029.json and https://artists.proofprofile.net/proofs/artist/f6cd8760-17eb-4a05-8a01-e9eac9bf1029.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mulassunk Együtt!, Vol. 5 (Se Veled, Se Nélküled)
Mulassunk Együtt!, Vol. 8 (Hosszú Fekete Haj)
Mulassunk Együtt!, Vol. 23 (Piros Százas A Zsebembe)
Mulassunk Együtt!, Vol. 20 (A Babám Fekete Romalány)
Mulassunk Együtt!, Vol. 22 (Favilla, Fakanál, Fatányér)
Mulassunk Együtt!, Vol. 16 (Hej Rigó, Rigó)
Mulassunk Együtt!, Vol. 24 (Mikor A Vodka A Fejembe Száll)
Mulassunk Együtt!, Vol. 19 (Ha Én Gazdag Lennék)
Mulassunk Együtt!, Vol. 17 (Hogyha Nékem Sok Pénzem Lesz)
Mulassunk Együtt!, Vol. 3 (Gyere, Táncolj Cigánylány!)
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 0xdf483f9776ff95f3b58dfd917b9725012561cf3bfa333f59825c8e4762dad0b9. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/HUC301400853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889df32cfceada22173161fa939662cd3c52c67524c337387d587fd241bbd28f. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/HUC301401041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5578368f07202847d1b6a01a1f1f35d96b5614c30251e0e31fee87c60a6324e2. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:44:25Z), 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/HUC301400734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e25ab1ef9755baa032520b27508de5ccc6ce63e4aba346df08ba3ed4adb8ba. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:46:38Z), 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/HUC301400906.
Mulassunk Együtt!, Vol. 21 (Templom Előtt Sütött A Nap)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b5ca9c7f32b06c1f39367a4924f03b47aed85040e7656ca91ee2e9f1f74807. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HUC301400791.
Mulassunk Együtt!, Vol. 1 (Szeretlek, Szeretlek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612571d3cff70d8e1e1273494a34e8ca8c32ec1bc4bf70654537005111663680. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/HUC301401066.
Mulassunk Együtt!, Vol. 10 (Amikor A Szívem Úgy Dobog)