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 0x6bfdaa678cc5868215e2318629dfc32f5a14eafbda3e5eeac0640efb6dedd4a1. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bddf858c-1306-4d72-b348-e9fe350f9cd7.json and https://artists.proofprofile.net/proofs/artist/bddf858c-1306-4d72-b348-e9fe350f9cd7.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 0x13a7f7eefb3660eed13d26b2557d5c99c5c2e99db6ff12c653f467bef3d15918. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/ITD541900088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe022495059deb275cad6f18fc956c8ca64e6a028a6d3fbf5af6a74c4c6aab0e0. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:09:39Z), 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/ITD542001264.
Italia d'Oro (Colonna sonora originale del Programma Tv "Italia Sì")
Italia d'oro (Colonna sonora originale del Programma Tv "Italia Sì!")
Due voci intorno a un fuoco (Alberto Bertoli canta con Pierangelo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248286870210eb5e05f06e850805070f5473faac74bf03fa6e6bba96ebbbd050. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T01:04:07Z), 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/ITE012200259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9521fc00e7854f564c7a433ef686d2116d46ceb7ba2f7170fc50b6d1292e0a. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/ITE012200261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee5745735d0f52b917ba42a190ce4c21885eb18ac94656c6c34560995d84b69. 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/ITE012200264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de77344bfd587abdeb686d1179ec253f347f3618f6d7c6b370ce0ca99b80dcc. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ITE012200274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b80a41e4a107b98b4563df230af0dc6c12011cb6accb88205426d4e6e04e29. 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/ITR1S1500009.