Clemente Maccaro (born 21 December 1982), known professionally as Clementino, is an Italian rapper, proficient in freestyle in both Italian and Neapolitan language. Along with rapper Fabri Fibra, he i
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 0xcfcd5b68346f79b872be694c2e291bc939547195a30e2210c35494062260b71a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/287140ad-436f-4ee2-998f-ed73b058a4dc.json and https://artists.proofprofile.net/proofs/artist/287140ad-436f-4ee2-998f-ed73b058a4dc.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 0x5ee8a6dd0319c683cd3c94045d196330d25857e539d842d8a84bb774c0e77313. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB002200114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d4507003af9d49116554c5b1260d4a284e358dbc0a4b7e1a15205c90146a84. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB002200115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a0e6325d2730e5d0eeb7768ff05d583b3b27e4d542c73f5a72bdd28f2c557d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITB002200116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cadf56b5f3a3b4fb554b8af58449f6077f810530996cd6a39a0d85484929b41. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITB002200117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f16ef03afb73efffe4bbc9db151db956e7cdf48770f376bc9b6bb246d87844. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB002200118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e63fe4ecbe90ff4d32050284b6381430aebce601925c1a28513c911d3cf84e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITB002200119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0100abb8505bd409fc59c9667e93dc36bac1b96067c3912ffd09387f6e1110. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITB002200176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb32cbf3fabf729ab9c462ba0460e2a9dc750c78489eab864d9ddcf290205c8. 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/ITB002200120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd27beea0aecf09a8207fcb90cdfbe0bda2f1fb459f958cc84ced38ce0aa1146. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITB002200121.
Amore lo-fi (feat. Nicola Siciliano & Madame)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecacf16c2a2fd5473315e34314dfe8e8b558657759a32ec61652085a732a39f4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB002200122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd921708b718c46e4263be8f87cbe98e8d407fbe0925622dc1a2737d2d4d53bb. 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/ITB002200127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1120b77d207f0609a6f79821b354d213c2e2e9b1d6da97991febcef1c983537a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITB002200124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee41a30700034769fd10cb355636d25582d6303154a7d2e088497da7c70a803. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB002200125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc686b2fcbe09298e69c64838f2348f9c34147691484c938301667d2d2fc43d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB002200126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7932b9dbb2c9079ea8283a974734db331d3af3ac93c392986d6d5555c91e31ed. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB002200128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8e9f08df8c96e8cd653630a3873a7334bb5f7058d67a875a619dcc6b98a48a. 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/FR96X2148951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb11ae86dd4c0543980cc2cb2f685229cce2ecfdf73dc39fa6627d44af7eca5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/IT2G32100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1722a9fb39de54a8c9f2ba868d8cc7a7a354b6fb658c3d9c1d54909daf9ba5e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITUM71300588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030718311067aa8b88e9ba0053437fcbcc5cac26c0d1341b3afb05742ee20ee9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ITK251610031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5612bb119fb5c7c627d50034f51d51ba672758912895bea6497760f28d7640d3. 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/ITUD52000072.