Filippo Bubbico (born 26 February 1954) is an Italian politician and the president of Basilicata from 2000 to 2005. Early life and education Bubbico was born in Montescaglioso, in the province of M
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 0xb08f06c73397e70583f17c2852cb309048a2bf85a9c1d61e74e1d9a13af4b7c7. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7554051-3c7e-437d-a041-d220e6fa79f1.json and https://artists.proofprofile.net/proofs/artist/a7554051-3c7e-437d-a041-d220e6fa79f1.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 0x6d5ff9b8d9cfd3259bc8af353d1c0af17373cbc07f6c6343fe9d6fffcccaddf2. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ITDY32400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1809ff778eea586eec9555b74132ce539ba792e8d9f0c13b130b57190f0dd58f. 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/ITDY32300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688cce9d43a51df96605f3d454641a69396c3c2d71683a19f75ec29b431ae0b1. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITDY32200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f85e6e66494813fbb9b2ffc5cabbe732f31720e41bfdd142f5cb843e8d87464. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITDY32300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d57015c1c2a33aa6299df9fe38249a364226f35763816fcf9655d08f994923. 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/ITDY32300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc779be21da72288f49f1794b5952f872c455535457f5b92b4437b76f46aa20. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ITDY32300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d02245d7d96ead2d51527733df06d2788936b15ea9750a99e62880247d7c7d5. 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/ITDY32300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f85e6e66494813fbb9b2ffc5cabbe732f31720e41bfdd142f5cb843e8d87464. 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/ITDY32300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e690cdfb2097bc5c771f185044472debe904f570cbca00efe432ce4883bf2a. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ITDY32100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b1b7929f070e956d6349fbb88a4f574808d8be3cd52910ea46cd4e4710c3ff. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/ITDY32000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a03bc24c5b15e0dbac1b6c506b49917decae935ad28e0186741d1197803f4ba. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITDY32100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f4d5ae79bfa62101dc841908c0b22844116d3a2c610dbfdd431cd859d9a765. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITDY31800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7327c9931786fb57a7fe5c85f786f76a263d2730da6b99ef0b4aca949eb210e8. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ITDY32300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6fcc282c5e9e6a2973cb54f5999854fc6c460edcb6bdb130bdb1684c771952. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCGJ2444878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752bc05d10f81dda9d9eb8c2cdb4a4e7df56089fc60994f8cdced77d24ab5849. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/IT2HQ2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dddafb338e4c5ddf392863859fc1245668bd767e1e9f16b5fee5c11fa8a6925. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ITDY32100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eae7d697642678be2b41b5357dcbd11daa8b8c2863b7a62b094f37fe2a679c8. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/ITDY32200030.