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 0x539687cba039ef434f9972ba00689f4ffb1c0122140fcc12b5a7c4edcc343d53. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9d290bc-db92-44e4-abb4-983c053891c1.json and https://artists.proofprofile.net/proofs/artist/b9d290bc-db92-44e4-abb4-983c053891c1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Senza fine (featuring Fabrizio Bosso and Stephanya)
Italian Restaurant Lounge Music (The best Italian Songs to relax for your lunch or dinner)
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 0x1f93975cf22a549502d60a4169f666d1b10bb1db00d8c5b0cf1478d898ec8953. 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/ITI021500411.
Il caffè italiano: Roma (Italian Lounge Espresso Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f93975cf22a549502d60a4169f666d1b10bb1db00d8c5b0cf1478d898ec8953. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T17:21:36Z), 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/ITI021500411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f93975cf22a549502d60a4169f666d1b10bb1db00d8c5b0cf1478d898ec8953. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITI021500411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f93975cf22a549502d60a4169f666d1b10bb1db00d8c5b0cf1478d898ec8953. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITI021500411.
Italian Restaurant Chill Music (Beats to relax)
Toscana I Love U (Italian Classic Songs For Your Tuscany Wine Tasting)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f93975cf22a549502d60a4169f666d1b10bb1db00d8c5b0cf1478d898ec8953. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITI021500411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f93975cf22a549502d60a4169f666d1b10bb1db00d8c5b0cf1478d898ec8953. 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/ITI021500411.