Giovanni Giancaspro (born 21 April 1988), known professionally as Gio Evan, is an Italian writer, poet and singer-songwriter. He participated at Sanremo Music Festival 2021 with the song "Arnica". B
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 0x62439cb57523278de9ce51c63323303eb1b1fd803936e4826cec16fc43613bef. 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/cf7bd680-e41f-49f8-9cc1-2a71c7a0c330.json and https://artists.proofprofile.net/proofs/artist/cf7bd680-e41f-49f8-9cc1-2a71c7a0c330.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 0xc212db691d07b632590b83e77a08ee26a8c0c09a887f94c838f8cc31fde73c32. 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/IT29Q1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69f6a2c734015b2935d5aa2c0e534a92a5d2c8b9d4a8b04fd81c84a75a2b4e1. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/IT29Q1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d225236e4e0f8aadc3013ae09ff8959a691082e39235bfefa49499d47bb4eb0. 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/IT29Q1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67148b090507f0313008f8b555ef5b713cb1fc2cbdf5f93990c82e60e378292. 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/IT29Q1800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d186d40484047566dceae522c91cc0d4ce6a1ee782b6795811a8373d27103d4. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/IT29Q1800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f93596dbc42ce8149c7ecfbefc36f9a79be5bdc7343f3cbeeb7c2a8670fb3a4. 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/IT29Q1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413cdb5335864b6cb3a927dd172537ad19f62cdf0287e5b09902b35fa28a35d8. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/IT29Q1800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe0a48988f349cca6bf2be7a13721a3e3f92906b9ceeb93804c58ff7382bda7. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/IT29Q1800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb587da911c22257b73e5c60387b9173bb165b6434c790d798d4ac61d1f11e95. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/IT5KF1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7582044244d5541f496b359866ad9dbe61b7c3c8a69a34e780e233f48e0e8a0. 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/IT5KF1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa685272fa7ccf9c550efd021a0a7cc05cd3979ec1e5d4f146f4e9fdec6311e44. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/IT5KF1900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dc1352048674654e83c7be2c28484075a8921ccc96188a922cdde0750ad4ad. 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/IT5KF1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa110897950e3dc13d85530339030246751c7156b015baf18baa5299df6477794. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/IT5KF1900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d0edf00d22966918f14e21a7af626894bff06edbc4fc23c71b1e8567dcb5bf. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/IT5KF1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaed980f81eb57034628331b2a874f7e0dec8138f3e97b26277bccea645ad861. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/IT5KF1900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3329aa1654a1f955a0c93c9f2d8c22db8e5bf273f8adf67409b9863a69c9d257. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/IT5KF1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503be6429aee16534120c4abb812dfaf8ffe68838cdc965757ea7730de5bcbf6. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/IT5KF1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f727063b2be2faa5814d20a0be9d87ef0e725fe2aae119ba7b695ed8cad3c76. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/IT5KF1900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897c39f5d652c8e87ede11b566b2201d01e141b36b66d4556002b6fe3971fe6f. 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/IT5KF1900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454d6954b61bfe36110ea9c0e5aed6c84daa2bc590cf881de3dd0d46ecd26eef. 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/ITUM72100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220e6cd5cc60e7454c82fd55fe05c4863361a7a057a169fa1948a944f8384c4f. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/ITUM72100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033fcd033e6ac1cbb6e9a6100ba9023af2788fdbdf53b7d093f68836654db8ca. 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/ITUM72100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d2642e47314ed84473282b6ccae3c26fb8ba31961095a83cad24f69b9d5619. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/ITUM72100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ad0ef44c99bf91e4b997c502d89c8f7f751d465948573f388f3046e139b291. 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/ITUM72300947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf72e66fc9e5eea232cfc667b58808929aeb2d5cc5264e568087be3f5b22b9c3. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/ITUM72301287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123b5a3059e033a82cf7921ccc241192ee4921dc2e525af91818133782f75ca9. 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/ITUM72301553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bac67cbd5bba44f87e5fac7f3982d3df6f705aec9d6da729ee8701b2cccd8bd. 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/ITUM72301547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad782e97a9ec483005fbdbff053ce7e553e4fcc249ce24f2f4d93811d49f66e. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/ITGOP2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7990aaf48903e18f3462041e630f24167c5d7b9dd5ea72c3396631fd6bb28e4. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/ITGOP2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e40305ccf807d44373cb2cf69507a8e7f13991e267ec6b52f61c4010e5d4c4b. 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/ITGOP2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5dd3e67593de693e628e932ced38ac99361abafb59d093f11575c705c752721. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ITGOP2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff55421c8781bfd0e860668e778dae815cd9d73fa9ddb38031b2345dbc15a6d3. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/ITGOP2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d019ec5cd0f4f83b927773c89022d359e3f8b83b12f0b48299a1ca0d34bd90. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ITGOP2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920c1cc7edd230389d37afc7e118f6ee252c6e0cbd805393fe72f1aba1a33c45. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/ITGOP2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb78a15e212d99474ccd437c0b9a40659ffb82503947581fb4a2123c618a2556. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/ITGOP2500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583e2ef7b835a82e603880a2a2ef970ea47a0b1ae1b2073d3e28da027c476df3. 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/ITTL52110022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583e2ef7b835a82e603880a2a2ef970ea47a0b1ae1b2073d3e28da027c476df3. 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/ITTL52110022.