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 0xbcda193a496203117d24cbd93b4461d63ccc83eee9bb0163ee85ad180e3e0df2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/387a0ec0-a111-4878-b698-35f4f2816a06.json and https://artists.proofprofile.net/proofs/artist/387a0ec0-a111-4878-b698-35f4f2816a06.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xcb3ae2af588f68db672c158aa41ea9698c5e413ce9765cfc97c00d03ce09578f. 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/ITF131600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00465e4c56d59f6ad4cead6130cde100f318ac4f3c86172a684ae8e0d4d40885. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ITF131600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585f9e3f7d7441879c396b9f5511619afc88b86f6f0118730c0906c6db008bef. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ITF131600025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bcb4be1db691aa99f580e4ef0c4582c2565f54d29029447d7af7f5b95d7a234. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:15:04Z), 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/IT0311800225.
Oltre quel reef - Versione titoli di coda (Da "Oceania 2"/Colonna Sonora Originale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc9c04f9ddece36ea6e44e3edb950ace2bb701ba806c7f3287218fa28672161. 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/USWD12434482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee89694aeb4137b8f95a689c9cbdc765abd3f62d8c0cefb2dfbdf7d1f341397. 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/USWD12434483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7fef54edf700673ad7d26d0d838a529cf04e9b8d7540cacf35b970a3e49fc74. 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/USWD12434484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90724879d44fdafb979b9ccbb8da0013d52bf376f10e51c02b54a08d6b049fb. 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/USWD12434487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa011e3de7fd9327487b7511a20f07d6ce61673174cb68d83d5d405090e500125. 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/USWD12434488.
Oltre quel reef - Versione titoli di coda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf83f50518552c307d8de976893a0f449a7ef2141ef0a24a50a741d3bdd2354. 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/USWD12434489.