Stefano Cilio (born 23 November 1980) is an Italian musician, writer, radio personality and journalist. Biography Cilio graduated in economics at Università Bocconi of Milan. Mezzo Secolo, his fi
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 0x0cdc723ff6cfdaa4be2641fa58e27b4010a8a8ea2f3407ddb25f94daccd98960. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca813ba3-0b89-44cc-a8e3-32ddf21b26e0.json and https://artists.proofprofile.net/proofs/artist/ca813ba3-0b89-44cc-a8e3-32ddf21b26e0.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 0xba883319181d7bbb5af760f75fdafbfe073923f79a77170b44b4a1f86835e64b. 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/UKXN22244609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d91e72a6548acda9662b0efb38a4e7c6a3d52fe3e7d0c769b47d233fde90fd7. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:23:50Z), 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/UKXN22244611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe8695f428c825057e1ba389919c638f14b7557d50464de77f18c5f93773d54. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/UKXN22242404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1942fb0a2286a432aed0c5ed8346ff41f1acde1843eda27743182d6dec4502. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/UKXN22242397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1942fb0a2286a432aed0c5ed8346ff41f1acde1843eda27743182d6dec4502. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/UKXN22242397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa822ed4e22aad22ca0fca085d024bf41bda107fafe1e05ff44b1545c522d6613. 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/UKXN22242385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa822ed4e22aad22ca0fca085d024bf41bda107fafe1e05ff44b1545c522d6613. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/UKXN22242385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2f6cc50fcb7d94244a6c3f5ace0205e8a1fe724a00de4ff74c4b7bde1d9d8c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:27:26Z), 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/USL4R2231169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b6ca6f3b03646d6cb4058b891ce8a9a4f4b3eee3797fadee62077f95fbd293. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/USDY42313334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c42fb4a68cae0a77951ef9a7ed3b87edd4fc8a51028a2f0b36b8b5985419de. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USLZJ2488788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba883319181d7bbb5af760f75fdafbfe073923f79a77170b44b4a1f86835e64b. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/UKXN22244609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26bb751952083dda75d6848c5be0e2a2a659110c29aba84c3ca6e7cae2f1c72e. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/UKXN22242393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2f6cc50fcb7d94244a6c3f5ace0205e8a1fe724a00de4ff74c4b7bde1d9d8c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:50:29Z), 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/USL4R2231169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b6ca6f3b03646d6cb4058b891ce8a9a4f4b3eee3797fadee62077f95fbd293. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:02:50Z), 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/USDY42313334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ec86fa605c247d57c8c176e61f42e7ca32647f9f597988dc00e61e3484108c. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZWDD2390540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c42fb4a68cae0a77951ef9a7ed3b87edd4fc8a51028a2f0b36b8b5985419de. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:58:01Z), 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/USLZJ2488788.