Ludovico () is an Italian masculine given name. It is sometimes spelled Lodovico. The feminine equivalent is Ludovica. Persons with the name Ludovico Given name Ludovico D'Aragona (1876–1961), Ita
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93296841ab35c798b00798abbf96ef1feafdb0c58c983193426de36baaa6f1d5. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/afe7e865-948d-4b48-9f44-01a4cf0cade8.json and https://artists.proofprofile.net/proofs/artist/afe7e865-948d-4b48-9f44-01a4cf0cade8.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c965e44063e7925314df48244f762dbca80bf535e0e3eefd05f98965bc0aa3. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZHN31922304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7530b6f3b274496b984ad7b14799ccebbab37a2fc9d953acde5b339963b9bcec. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZHN31922305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34da1bb7425c1d761f2646e3fa98955ad76dc1529900e6b5449d247f6ebb3a9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZHN31922306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a24b6b333463060a3145a0387a45680cf29387db2ae9f6ddea5c2c124de758. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZHN31922307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559aeba4f171f4a5a8c2a11c625b0fa0e48b067492f54361125410cf19cec7ea. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZHN31922308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a41c4f81c996b5ca482b1438342ad7aace942a7e4ef0ae61c985a24245320f7. 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/QZHN31922309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cee765c2ad88c5b927a25bf10defac1c3399a424aad92549e2a6735cfdff80. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZHN31922310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5edafcbc1085d1369528dfe39c7294a37da495cc0c9761d1743c2a1aaa706b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZHN31922311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0944e4ec4a2329c7ac69149d1786df6134a714a213b6e7b9f36bac8ed61219. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZHN31922312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2b6c6a8c8ccae1aaaa9fb52f78bdfa5f3f3c10a7546c1df8917de57e9d6419. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZHN31922313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e0257a7bdcbc9b3914e3013a7dcdce5a11630b75fa611a0caf3db70fe589fd. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZHN31922314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c9f3ec5bd82bba3db45b7c455e35feff74d2867a3e550e10f358baa9c9cee5. 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/QZHN31922315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5921fb80427596d4090c467d0e45d496b64ce7a06e3d46567abb6e157e6028. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/QZHN31922316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823ef0273df68e454c053a967e542d4153b1dbd02f73e95e4756aefe8532574e. 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/QZHN31922318.