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 0x2f67b75c88dd4a545a5e538e4021ada1de4402b3b9175dcf2426ac05c6eb4094. 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/cbd71cc8-bef1-4abf-8271-29bd77b1c729.json and https://artists.proofprofile.net/proofs/artist/cbd71cc8-bef1-4abf-8271-29bd77b1c729.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
E' tempo (Inno marcia della pace Perugia Assisi)
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 0x7772c018cd2b51fedd917f6368e1b5a184558631068f853a6097c17402e15126. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ITQ242102487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14bdc5dbdda621161577ddae9dfbe839fb77355b8d1b31448322520ead52e51. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:04:00Z), 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/ITQ242102488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbaf0e27c6c24311d899702f133b760043c06a0e8e0b538fc4fa99bd12737dc3. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/ITQ242102495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd22c2528afdfdd996abaccb517436e9ad75688b11de0203cc06d4474dc9e625. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ITQ242102496.
Dietro alle stelle (Colonna sonora originale del film Fratelli si diventa)