In contract bridge and similar games, a finesse is a type of card play technique which will enable a player to win an additional trick or tricks should there be a favorable position of one or more car
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 0x01ea020552b667753bc00f410c9b1f0c364416208af6d5ed50ad4b2b68448629. 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/f7280147-d415-487f-a3e3-b5efb9ed68bb.json and https://artists.proofprofile.net/proofs/artist/f7280147-d415-487f-a3e3-b5efb9ed68bb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gelosa (feat. Shiva, Sfera Ebbasta, Guè)
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 0xee9ef67372c5232c181aa3b21dac6f281a18e46eba631b0fdf1d2a38f4a52fe3. 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/ITM382200133.
Gelosa (feat. Shiva, Sfera Ebbasta, Guè & Drillionaire)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb21b3b6ca11a59ede15a90502600ac7f1a43f9cd4e1b0e74ce22a5b24c00a3. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/IT30E2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ec373ff10be6ee128a47c56f5a081299b9fbd62b49bb66a20ea810b2452c1b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/IT30E2400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c1312bf9403c00cda1508303660f33b0a1112942e1a69a55fe39b04943033a. 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/ITM382400152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069b944654de3d59c8c490feab9bdab30171d0b1e314f7e2f62e44801dfca2f0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITB002301360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62230aa4c6f8b541818ac6bef53ad76bf60e490ce4caec66d695badd9db5f65e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITUM72201981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808e34843b077c62b3df02e68c10700317782bbfe6def49d6602e5e61fcabc80. 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/ITUM72200248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58e9b4d2a1b2412708640ce2cf25d8dc321706ff48d839be27fb2c94d292a9d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ITUM72100282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf698b5c67c6ef1884505529cbda5c9adb76c888a37eb6996c9059420e6d96689. 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/ITUM72300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf698b5c67c6ef1884505529cbda5c9adb76c888a37eb6996c9059420e6d96689. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITUM72300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62230aa4c6f8b541818ac6bef53ad76bf60e490ce4caec66d695badd9db5f65e. 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/ITUM72201981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808e34843b077c62b3df02e68c10700317782bbfe6def49d6602e5e61fcabc80. 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/ITUM72200248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58e9b4d2a1b2412708640ce2cf25d8dc321706ff48d839be27fb2c94d292a9d. 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/ITUM72100282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eee7ae9221c486e432717fe68d7fa1b39d1dd01db787a99f13b245fbc10abd0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITDJ72300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad89de2106663ee71a1619b2c90d72f8129e284f13119e5aace4781cd8b0a4c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZMEV2296842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d024c72930be2ed97f1ae15787b995ee5d42f4235b1add94cb2da55664a8dc8. 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/ITQ002400383.