The word Finn (pl. Finns) usually refers to Finnish people, a Finnic ethnic group. Finn or Finns may also refer to: Communities and ethnic groups Finnic peoples, various ethnic groups who speak Fin
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 0xbd35241436a943266e52c7c5f50699a55b27d0eb8aca85c68ecaeeefa2fbd20c. 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/add65c07-f38d-4135-a27f-2e75b5f3cc66.json and https://artists.proofprofile.net/proofs/artist/add65c07-f38d-4135-a27f-2e75b5f3cc66.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 0xef72bfce3daf4ca2f86a44b5865deca27d1fa7b910fd78f95f16f9ab72f19815. 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/USHM21676234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5d125ad97650ff68308ef3d1b2280a3f083325c95a57f3503d3586119d7fac. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM21676235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f4bb41db9531c2bf2451c3f90571a7a7b73f07d846bc8baea90f775e4afbe8. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USHM21676237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f1f1bed847e94b48332c1f347e54cdbe63cc443fcf46228800b63134056414. 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/USHM21676238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ebf57d86630f14b7685153a73e88d793ef49ac25273d574d0f0b8dc0052254. 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/USHM21676239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5adb7e115a31bdf9af962432c4d7eec0f4a2ff19280d0487b22eaca938f384c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM21676240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7104f1740b6d8c9eef32c758c1285709ce0c25e337f254c524494e6c22d21821. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USHM81724376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346093a29ecb33d140834c1bf6b20309ba2091696743a6f11b1b90814948d0c0. 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/USHM81724379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e241094c432435d87dbcef1676e49ae4d3a4af3104b8d199dff095b451fb41c. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USHM81724380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429f6dbe1e4969cc179064696a59a1a71d949955b5c3393c596ff4fb02168c1e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/USHM81724382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbdbe3c9f692f3e805aa48db7d355619f0e641479a9d12a3905ed89ef58cf11. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/USHM81724383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc820de3805d44f311602385e1b13d5f72f78c8525e80fdf9dc4f588dda1361b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM81724384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1efd568c470c56fe0ab132e7c6be49ac684d6919380a47b883d3ba784bc43b0a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZDA51810715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7c91091322ba73763265aa3c841644226b427e25ea87813b6e9bf56343c667. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZFZ62130602.