Enrico Sbriccoli (13 November 1934 – 11 September 2013), known professionally as Jimmy Fontana, was an Italian actor, composer and singer-songwriter. Two of his most famous songs are "Che sarà", perfo
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7868e40e27f6555600a527b154e93fe9b60463833dce3b1938f09bda0db8b3a2. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b51e1b0-a76d-429d-a01b-b9cb61b2a4ba.json and https://artists.proofprofile.net/proofs/artist/5b51e1b0-a76d-429d-a01b-b9cb61b2a4ba.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8ac0e29e5e6f3c522ca29a53f30461f389316b39e559e031857119cb0f7068. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:44:52Z), 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/GBMA22399469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c02c2101e59b93636f118807c57c24d076fe6ae64f8d1d77c1900f7ef9fde73. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/GBMA22399471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f12916916242464406a68778a4d453ee235d55550bec8cc537d29be201f15d. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/GBMA22399472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2c12b11af2bb425864c7ce2cb3028ada330677846d9521c00428295ce5c2e3. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBMA22399473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aaa07ab2d43b10e451be20a761e5be352d64d5f8979b8601c4bb89226bafe46. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBMA22399474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdee9b062216feceaaf1026dab8cfbcebefee781f007e90dbe033da30d421ae8. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/GBMA22399475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1958e2b9d6027791686ff2abc49c762a6f9e593ba8200c8fc34902f85d9b461f. 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/GBMA22399476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c96609523c55b764e3bc1b2d64d30f0f55f95498861f7c2eb7e1a6549c78397. 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/GBMA22399477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70869a7726fb26ba3828d91420f38a30470de714a9747cf4baa6ab3cd6efea69. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GBMA22399478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781bc44b0f24f4f7ae5ea9fd461e335a46f025657dcb40e10de3756a17ac7fd1. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/GBMA22399479.