Stefano Noferini (born 24 May 1961 in Florence, Italy) is an Italian tech and tech house DJ and producer. Biography He began his career in the late 1970s in the clubs of his hometown, Florence. Then
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 0x4230d76025be50bc720d23ce3e8fe6cae40c646a2cd2aa75faeb9e4ee51cf41c. 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/4e468b15-d8bf-489c-90cf-da1a4e725848.json and https://artists.proofprofile.net/proofs/artist/4e468b15-d8bf-489c-90cf-da1a4e725848.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 0xb95460b8d8951ffec768ab37254c0fdd9b9af7eb1e08e3d02f7cdc4eec7790bd. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:33:42Z), 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/ITA061302691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064811302b50333dcc0acd9262f0b3ed53eba2b5aa1daa40ecaf45b2fa702df6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITA061302693.
Toolroom Knights mixed by Stefano Noferini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4533a6eca80f6b753197d85a2a7982ce2cadfce3acd7df57458346240cdcb9e3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLR341010068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc7183d62ec595e799221981df271b5085b17439021491d7b86b541b88dae4a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITA061302754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbb553bc1661199e35b3e234f5e55035d77abca947be35beb00960bc276cf83. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITA061302523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731244d94bd0f8236095401cda85a929ffac89d6a2d0799e3684760e8746cada. 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/ITA061302525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29690d716724362c862c71da2935ab3b3d2d626e7a9ed4519041fa7bffcf6a1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITA061302439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501dc4047bc04c43289d32ea9345846c07e1c1a88268afacb36e3efd961721e1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITA061302135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec846bde2562d0375874fbae6a40f6b453f223195493a94beab376bb4e82ff55. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITA061302137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa909ef8de3003120eba5b9daef31e0af0eb20f255f3946d844d7a94d1320e9b9. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:06:47Z), 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/UKU932410005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fcbbeffe2b032fff775cfd274f1901146365ecf78d2c5e96f7039c966ac7ba. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITA061302034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203e9c15aac163bba7b986ce2d8411988bc961680f13769c7b1b222f7ba2eb6d. 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/ITA061302013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046b362a1ac5f947bb2212cbc8c71eb907093ad2f4efa4275bb39c4588c9002b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES94G1918604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ad3c5603564ca676ac3a6d5f6487370723102c62e1c99875b182670977feda. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DENC31800031.