Federico Salvatore (17 September 1959 – 19 April 2023) was an Italian singer-songwriter and comedian. Life and career Born in Naples, Salvatore started his career in the late 1980s as a stand-up com
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 0x7ba809ef623b2adfe821602ba2400ad41d4c5645b42598161acaac759b49565f. 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/7fbd7e33-e32d-4d62-a848-acba867a34e8.json and https://artists.proofprofile.net/proofs/artist/7fbd7e33-e32d-4d62-a848-acba867a34e8.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 0x79272ed040118dfdb078d1b3edb82eb4930d0b0ff9560cc761e45473d4ff3a09. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FR6V81168409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf519b9cb3e29c5a6d08e706ba1744b0b7039a8d5ffd416149693a6b7e17adacc. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/FR6V81168410.
Storie di un sottosviluppato...sviluppatosotto!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef79a0c46b59841236451d7cef86db3132185c483ebad47f9190d1a3663dda52. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/FR6V81159901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7c404abfd304e548c6f7943c8c66f15e835388aa974d377adbb4af42847054. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR6V81168400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088ca3303714cadf6e918317b99d77417b3b2aebd95bbedd52d585912d339ca3. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/FR6V81168401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaff41af262675af95aa24b64581dbb177d7d105b766fd4c6ba52e5309e1f507. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/FR6V80923688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd64b5cb8d2a744182f268ed1392c2a74a6e6f4e945340754395b0e54b23453. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR6V80923691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf2f5b797bca19f7525d8530fa781af618166bf30e99e5878f3022917358a07. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ITBX71300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd53958a68eb2e6168ab3a2235b737cf8fe42458c216760bcf78c2c3eca6a99. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ITBX71200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b308a611213e175ecc69eef395e051cc6c8627239f2653c7d2e258adae6cf6. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/ITBX71200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723f9ce824f17df994d792458b11cea8fb0696d826c1dde608a31f468c7b6c46. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITBX71300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d3709f20044b1eb729e5404eb4f8b84e1cb56520f68f25863b2cd7ca441546. 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/ITBX71300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133e4e1778f66a69e7dc1002670e8bf8cffc7b24aeb5aae43ec3be7be6bede80. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/ITBX71300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1afefafb2c912c59e773ec9222bc45f3bcca6094d69ee4f20c7505a7e4b581a. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/ITH472007310.