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 0x79cc2b2fe8b4d4070fb5cea11d849568118a32500dc6403f671d728554fad6b5. Chain 2 (Bitcoin): anchored in block 953710 (2026-06-14T23:32:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ddd1119-8372-48ab-9456-e4a740304aed.json and https://artists.proofprofile.net/proofs/artist/7ddd1119-8372-48ab-9456-e4a740304aed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
E' risorto Gesù (Canti per la messa e la catechesi)
E' nato Gesù (Canti per la messa e la catechesi)
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 0x6a7d6b566c5f0156c2f712125f8dc95fac114201d03e6850b53ff9510fe4ce4f. 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/ITY871450172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f9d4efb6fe321b53c15a4bf0fbf7706b04439d4c0993b70ae141e8f6478193. 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/ITY870900264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14df027abe2895c5be61343f7a83a6dc4d23727bc4aecafcd09a2a7f24f4f767. 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/ITY870700325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c33df95a71fd00423a559951aab98623cf9e37a4a0c23ef51e0a0877e9a997. 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/ITY870700302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a87a1459e17ca373eacc3279af058e3bc7f5444cad8324b57b61f1957f66513. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITY870600152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14df027abe2895c5be61343f7a83a6dc4d23727bc4aecafcd09a2a7f24f4f767. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITY870700325.
Sei l'amico che perdona (Canti per la riconciliazione)