Kevin Kuhn (born 18 February 1998) is a Swiss multi-discipline cyclist, who currently rides for UCI Continental team . He won the silver medal in the men's under-23 event at the 2020 UCI Cyclo-cross W
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 0x2411d7116e0237498bfc034df4895a3eca1e48970a66e6e1deb80a236fb10b02. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/142323ac-0241-4c41-95a7-dbf91ff8ac8a.json and https://artists.proofprofile.net/proofs/artist/142323ac-0241-4c41-95a7-dbf91ff8ac8a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Una furtiva lagrima from L'elisir d'amore
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 0x5277693b27d4ba526b775e6219a9569b7f48ab4228748f2b94525708a3eb64ac. 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/USSM10303601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994c58a4b7289bd483bd67fb2b6e2adc7454713e1d3cd803023e067ab012ad9d. 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/US5YY1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c59ae3f6d163cb9bd606ca08493eb1bab93e337457ce253a89ba151dd4f82c. 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/US5YY1400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd40c2d97c0bb115414aaf955605a437c0d2eb8f83fc48aba62f31ba0e394836. 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/US5YY1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d8697d6a62db8d634fdcd531b6d8572ba8491e48feae46ad0ddc38ec49e2a7. 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/US5YY1400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bbe9d43a1eca1426395f613539b77eb2cb61dd9c68346df6e8cae0d7a53395. 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/US5YY1400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4a882b68f58bacbb85e99bfe0c4159d9838c469c9691bde971fec7086555f8. 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/US5YY1400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa925064fa4df7d1ea91551e1c9b24e987c9bb5b28d7074a25dd8a9efbf33201a. 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/US5YY1400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143f626e632a72fe5889a0806f0e4b08e688c3daa40ea63fb9768ca0f7593ccc. 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/US5YY1400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f28f74e9b8d1ae2a0449580c5c9067914f1c16ca4189fa33fb1362d401271d8. 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/US5YY1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec0f3d441da16bfb60ecf83a263018675160c03d79c576cac802920a16b69f2. 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/US5YY1400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c847387ff577da3766bfa59b39be15bcd5bc4b16b64c26a4e92f6d93171c74. 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/US5YY1400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aada5c6470684023e0d0a5f474ac459ac6a5673b30d0353cc99e8d298eec162. 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/US5YY1400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d9a17a8a816f3bd65f6ae2af4d703d3177d04302d55c32d2e81bedd50cc3ed. 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/US5YY1400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1e7c1a5d34f3da08771715c9458b769a727e4f570b040ba55aef9052bdfe49. 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/US5YY1400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd8012c57bd128ffb8ec79713ed0f14bcb810ecffbcacf767837a1b1f2cabc0. 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/US5YY1400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414f1a075bf186309658a659add1c1bee820829982b551985075835c2e62e45d. 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/US5YY1400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff22c234c9887ea2f93464c9c6b2e91ade3643be3ad60ffe2c4cc5095e2f10a7. 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/US5YY1400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf417ff83a41ddadc14ffa88a5499dbc5a902a73015855d4d9d55757940f1020. 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/US5YY1400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66fb758a518486ac272422e16b70a0993205c81dd48715f79acce9e0d53884bc. 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/US5YY1400019.