Alessandro Pizzamiglio (21 July 1964 – 15 May 1994), best known as Alessandro Bono, was an Italian singer-songwriter. Life and career Born in Milan, Bono started recording demos in 1983, under the
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 0x9f0e609b73ff9ea91a2287074596f644bbe32c44f5852afefdfbc5b96fe7d03c. 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/6a2fab9a-236f-406c-a69c-b176579bb765.json and https://artists.proofprofile.net/proofs/artist/6a2fab9a-236f-406c-a69c-b176579bb765.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 0x6093c2846496d515c1a06899072517e9cd6d0584c79f0b3ffe0f948089197e5a. 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/ITB000600626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fcc3d2911e9d7565430f9db05351100cec6a628e43ea0450ddc36e6feb65bb0. 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/ITM000300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144766c19132c469bd6f1218ba08a40aa21b1f9ae31f7de72b8a79dc79c5daa2. 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/ITM000300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8775b2d7f733ccdc71049a01165b66e62369a40d3980bc187e1efb9b47f5a31. 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/ITM000300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd225417e6e566dd8924fdba6b5b7218c46e96bf26c4e98f83040cab503f7b7. 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/ITM000300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1585736ce96e9b29a59083d86db42a521f56e5aa2e3dff66c51fd095f7efbb. 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/ITM000300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcc277be74a1d080a205bfef0710976694660369c8cccb4a4496c7215720185. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ITM000300108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b95ea7db4d2b5773c24a978c10464fbf323def8d97425bdb9980d79645ecd1. 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/ITM000300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37f98aac0c25ea6c07ed808118914477dcb80fad313a8dcf941bc95558f4b59. 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/ITB000600624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b34ea711c2f8a4efd6957a4075ce19e67c3bc6d744803850ceede1a17d8f193. 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/ITB000600628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30def70be859be87d65410ee79464029e6b6384b89645f9532c728de3c8590f. 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/ITM009800932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94d37801af49015ca720c3702080464c2b0e55a432bdb4a2ee22ff4489d61c5. 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/ITB000600622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7f8a9ca3067236dcce37ef8c565e3f9033b7b8d1c15d825eceb28215fc7bc9. 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/ITB000600630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a0fdee9fa63d4c27faef9c773c8737d85ba0050dac28bc70fbff921241c25b. 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/ITB000600631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67989bbb703d27a043713adbf61389103b57313fc0d832fcba20e0a2e57101c5. 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/ITB000600620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae3a52146c3c6b0dd4d3dffced47698ec380f9a922eed9b46ce4406ab0fce41. 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/ITB000600619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb132e87bbba0e260923b200fb3ea47a919a03beaa89f28a7fbd7b48821c88068. 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/ITB000600629.