Alessandro Guido "Alex" Baroni (22 December 1966 – 13 April 2002) was an Italian singer, active between 1994 and 2002. He released four albums during his lifetime. A fifth record, a tribute album, and
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 0x47a1e633cee2ace70aaaf7ebcbe2e3ee5a8a923cf9e54998e7757376ee8779d6. 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/b47ed6ad-e8b8-41c8-b6af-e6ac13366025.json and https://artists.proofprofile.net/proofs/artist/b47ed6ad-e8b8-41c8-b6af-e6ac13366025.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 0x32f8ef10b42ed3ead32d7a510affad49b4f891ad145032904bdd1e42c491522f. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/ITA459700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8998feda6cb6be84396e8266cbb7fcb8d10c143fe95de7379c8dcd8da31be0e. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/ITA459800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c6123bf17be247b2accfbf4105c0495c1662f0dad19bb63a1bb93b0caf1a97. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/ITA459800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc222833257f0ab346df3b476dd2bd1e467691ded2c6e65596c92783e108d1a5e. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/ITA459900066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75d2dce9acd483fadb8ff5eb63b0076a45342c4fa2c4b0c1576c39dc3fcc152. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/ITA459900068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8007b6f32203c67d25ade885e3bb55b7160337c11bd4624e5b503ad53067bb. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/ITA459900072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f8ca949226b5f9f533b548b4d636c222335d64a18077a4bd6b496ed2764f48. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/ITA459900075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56aab05254223cc5051f36670a7aa233cf15d64f376d9661acb66746784c49f. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/ITB000200275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3011774e375733efdfe7826e75c6f65b405f3342ec4fa57f6fc36ac62b5077de. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/ITA459900062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9361990d87860cabe3d26c30fa38a51da897026dde9d52f79e75397784e7eaf. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/ITA459700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e1e48582bbe8f9be8f9ab5ff43791abdf95f598deec25376f366041367c57a. 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/ITA459700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43673998f16ffae1751588392bcdee76a17bbfbed3b626cc39ad4f1ea75365c. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/ITA459800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3512ea79bfec6950cbc8724e01e25ecd08abdb2d2a852afb87d3682166f0cb2. 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/ITF280400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f5f16b6203e7aa7b79aea179a55910ffb774fbb9aedb6661b80e33dedf5e10. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/ITF280400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68835502ce0bff1307b952ecb52015e109a866b3d495a89e81b59f99aeaaa4b. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/FR6V80392846.