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 0x962e82d2de5dd68b13806ef88571eee819e115f8d5b7ca31d6eb1a092ce8ea5e. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce7af630-c9fc-404b-881d-4d341d07d548.json and https://artists.proofprofile.net/proofs/artist/ce7af630-c9fc-404b-881d-4d341d07d548.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Il mondo è di mille colori (Festival of the European Song by Children)
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 0xd95be64c38d00b483bc8164aced34f8dc07d94203086b5acd2057904b172b027. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ITQ990800001.
30 canzoni per 20 anni di storia (Festival of the european songs by children - un testo per noi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2da67dd83615e7c1e2662235923fc5e0f8165824f20cf509b7ad497046a073. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ITQ991100176.
Che accento strano (Festival of European Song by Children - Un testo per noi)
La pace nel forziere (Festival of the European Song by Children)
Il mondo è di mille colori (Basi strumentali)
La pace nel forziere: basi strumentali (Un testo per noi - Festival of the European Song for Children)
Canzoni di bambini per bambini (Basi strumentali)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503a8b2e442323fe71f36b5989720264c13c5f5b8c353a00070d69946208b064. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ITQ991300232.