Kelsey Hart is an American country music singer-songwriter from Kentucky signed to Curb Records. Background After several years of songwriting for other artists under Word Music Publishing, Hart sign
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 0xafb12bc2f32a9be133928be2d042d2c7eb311e91a24f818721b27ed40b65f566. 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/266f6327-d10d-485d-b7de-ad967ea8e903.json and https://artists.proofprofile.net/proofs/artist/266f6327-d10d-485d-b7de-ad967ea8e903.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 0xa7220274cc64b20dc76a3b7e249f809a50f3bf78dba428b0585c580741166b81. 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/USCRB2400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489dd07e08a8553d3d74b50888c3a57a94a25b566af43d61ecd3fe8cd81b3d35. 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/USCRB2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f363d2862d1b2d67e18c16b847f164975935fb48eb317bc1b1997d482c4801c. 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/USCRB2400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e69193a63009a43dce6632e75ba60092d8584c06c2c27cad569db06589888d1. 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/USCRB2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af054f4eb94232a52a5db7b3f7f448cbe417a41438fcd3071492fea53e60cb9. 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/USCRB2400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df6023baa008c8cb50e723640b8921f17b3318dfd2a714d087fccb50baf1c29. 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/USCRB2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaed10c561c792b3b6d65880b53cd9eb479423bcc2b4602311b7f5567b1ada38. 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/USCRB2300385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7433a8b753f30278897056c9fce5ac0e4cc66726bfdf16281d99eb15052573. 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/USCRB2400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6722758471693c1a59c7d78e0f7b28600695c43f1a6fbd3a369b986a73751d63. 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/USCRB2400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52eb269b02016e95b02598575de0c5c7761b67139883cd6a492ca71a8692ccb0. 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/USCRB2200182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779dda85bc6d7b8fbc6ae335481668e60cc1e1422df220a27ae63a240aa09168. 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/USCRB2400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce81d2a35403436354f16846632eedcbbf4fab819632aba4b68f5f9a1687188. 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/USCRB2200214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2d46d2847386fda9b5ec7c5168b852bb3b7fc91cf16c89127d2240ad393464. 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/USCRB2400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e929422fa6fe65ca68b12e6c46e2c820186161b16f5cf6a12e6c599b3e97d50. 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/USCRB2500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7235b870d68b40721fb1b7b1172555b58da10f05a81023a1a22066a00cc209ac. 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/USCRB2500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7220274cc64b20dc76a3b7e249f809a50f3bf78dba428b0585c580741166b81. 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/USCRB2400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fef3baf35fd453c6fe35f65601072008928114bfb2d6cd3df21420e95b9be7. 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/USCRB2400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaed10c561c792b3b6d65880b53cd9eb479423bcc2b4602311b7f5567b1ada38. 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/USCRB2300385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e69193a63009a43dce6632e75ba60092d8584c06c2c27cad569db06589888d1. 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/USCRB2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5612d00a35366ed8228192bc7a195f371c448860d956234c8a89fbb853bb820. 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/TCAFO2124018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489dd07e08a8553d3d74b50888c3a57a94a25b566af43d61ecd3fe8cd81b3d35. 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/USCRB2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df6023baa008c8cb50e723640b8921f17b3318dfd2a714d087fccb50baf1c29. 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/USCRB2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce81d2a35403436354f16846632eedcbbf4fab819632aba4b68f5f9a1687188. 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/USCRB2200214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52eb269b02016e95b02598575de0c5c7761b67139883cd6a492ca71a8692ccb0. 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/USCRB2200182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d31f04be1c63a4f0384f999ba52556fd75bd1f1ebf91d7819f4ff1493bdf82. 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/USCRB2200087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3877ab5bdb6c3dd153703a1d072d56f1ccd9294308dec2bcdce819b59dbd0790. 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/TCAFK2161587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578e2df52b37caa4388d6830a1381400712ba842e7e465a3ec79adbf11311d0e. 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/USCRB2100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5612d00a35366ed8228192bc7a195f371c448860d956234c8a89fbb853bb820. 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/TCAFO2124018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eac59bd5007c90757b55bbacc7a694f14a308fe6b0f178ddc5c851bc4806487. 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/TCAEM1948993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450bb152e5e3a89ae49b9e438bfbe38702afa75bc706c830f57c3d5a2fa8f1d4. 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/TCAEK1982856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628429f239e3ffceac0b469aaa4d943463d0db726c62d84529a11369ae3c4f23. 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/USCRB2400420.