1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xc1c8b7c89626e0b35abd10abd28db19f308762bcfa6556b08b18a9e7bec016f4. 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/f3aa287c-6e17-4c79-9c0f-a91a23df8a3a.json and https://artists.proofprofile.net/proofs/artist/f3aa287c-6e17-4c79-9c0f-a91a23df8a3a.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 → block OTSBitcoinBlock must exist at that height 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 0x46a5a15d6491deb7807cac5b3273dd40bdcf996541a5996644231f583be64e1a. Chain 2 (Bitcoin): anchored in block 957961 (2026-07-14T05:58:47Z), 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/FR2X41736456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c458f54f9f70f7e6e6d1f2ba35b61b9ca5e60fe86bc35e14647902df89dc2bf. 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/FR2X41736457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b684d2688b7e9625cfcd2ddae25c07e28f3e071440fe842b248040877a08ab. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR2X41736458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cfa6e4eefaae8a7811ebc53e9c1b4f4c450b2585049e6c47ebb57bdf4b98f4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR2X41736459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79b39bce40589b6ff8c218f6cf56f452bab61a269f7a1aa20da1c67c505d492. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/FR2X41736462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217e625ddbccde4e2ac370854f9c50e3afe6358f41dffd5da612ae5c8a687a02. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR2X41736463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5944f7802149e20a7087e28c349cc03aa40ad08a079bda418c6dc8d894549f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FRX201720909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7cdad4864b0faa2462b9c2766c1945690f47ac0732a5a2392180dffeb40911. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:02:10Z), 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/FR2X41869561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86bab1d21d4a31542b210247ad1ceb667c1e6ab783752268a96d1ee464f4e141. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR59R1859682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63acc5765d53a284ff64cc0fa9461f0e292738955ce2bf3b64755769e2e21598. Chain 2 (Bitcoin): anchored in block 957961 (2026-07-14T05:58:47Z), 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/FRX201917351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188eafc216f4500d22ef2c5fb6323c82e2dea54c05f38ffb927a8657bdfc97d0. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/FRX201917355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7804c697c6281c47d20620472b39e442272bb3808465f88d068a1f6ee9530855. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:33:31Z), 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/FRX201917365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac041e7310483509eb75fcaf451ae1058e46a72c05229c7a2566764f54cbedb7. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:31:37Z), 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/FRX201917367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93de03666a50b2e95374494e35778b23f402310d5d8fde3a08d305f938833be. 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/FRX201917369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b46a685bafd4e266a03768d0471bf5ad9cea05bcdeb2ae637594e96b95c698c. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/FRX201917370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d7afd113428f65ada35d6425227602d0284a005e66d0ba8621a996f8c415e2. 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/FRX201917371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ccdf1a909da2d0f48d976be79dc9c42cc4a0796a764ce0060722789883665a2. 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/FRX282075077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23bd111d20b8ce1ad41edb6cf5e85bffaa481397d2004849d9dfba44f1cfcda4. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:47:58Z), 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/FRX282075079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649c49551d834d6e36b3334e26b135735957a3aca31febf1ba73804bde25c404. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FRX762060592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e9dad21a9e006b3f1169b89b1d72c2ede873caa3ea7ac968519097ef8092e5. 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/FR2X42160333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb71f5d79e8743c14d7fe6b8ad51f6b4388bf6b47bbe5dbba888f217c3d1550c. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:20:57Z), 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/FR59R2188730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66c97a8ef94a6054432c564185d2822e6713bcf55f89561f7331c246c476e83. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:22:03Z), 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/QM6P42228198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1717591bd33e5edd93a38440051a850af9602108a9c2c250d63868a06b1ee1f0. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/DGA082292891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70133d7ce42f7bcfe4ee0a84edb08f347d968b47c1efdef1546aa09bf321c340. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DGA082292892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0bac7135239abd119aa8376c9b6c1b986a39aba3470cea6e18ae2f3410fa8a. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:46:50Z), 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/DGA082292893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa363bac70e0ee4ce5bfba2e982f58dc72264e500292628e2a78f293067a814e4. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/DGA082292894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5949a07155819dd5c9c5175929512e39d1e28225683f3ea9617cfac5b462e93. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/DGA082292895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d774cdc1ac3922b31733ae76c2d6c7653d78a2e753a0f1e931de761c12c361. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/DGA082292897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf809e3e35bf05cd30a55b246befaff103dcd1e354dec493aeb3d2b00356d574. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR59R2322485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d77a4f670fc6e24c11fc6165cccfca47fde0c5c91b044db3aadfc3952519fb. 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/FR59R1988026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d94d64011bcad6b887c1ba2a138568151389878ab5b757aed01e76f745eb15. 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/FR26V2032156.