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 0x632ec72d49ccbb59c2c638b47d128adbbcfc3434fdc6b9acef089ff3f23153af. 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/a6d888b6-c012-4d5e-8735-8590abaf2706.json and https://artists.proofprofile.net/proofs/artist/a6d888b6-c012-4d5e-8735-8590abaf2706.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 0x9607a131ed840858c0b944753d77ecad6e30aac17c173acf6231d0330cf47a72. 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/USCGJ2401820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4670f835c97016867d6ba88ffadd4c520edc55056c55d94970787d66926a462. 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/USCGJ2401829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2707eb235eb92874924fdbf03d4b82bba41d345c5c73b2ef29d04fc525c6c7be. 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/RUAGW2401100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3458ccf47d11d9b3e63eeb6327cf822ee0453e2adb90fb50401f1c65055d9cee. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:06:31Z), 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/RUAGW2401101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2349f4dfba28b8aac2201f2ea0ff62137f1471017d85d8ccdb664e175ee6bc72. 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/RUAGW2401103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456d2062fd29e84d706dd6b82cd70ef99fcc2685cbb3497c5abf54e495a81ee4. 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/RUAGW2401104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f21ec93608877a1dfcb3a3dd5ff7c8c1b2afe74f5c78eb54bbbd792a1272dd1. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/RUAGW2401105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa231ec59de7b81bd400b00547c9ba561c5a3ce7f0c3b51b373466ef28862b8e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/RUAGW2401107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3639a5b849a1e7f84dc05228d2ec39c0c4cccfe521ab67f3d71ac5b81b7afc4f. 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/RUAGW2401109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592a3f68e8148d88b321305b51fb72b90a45bf42b7407bebec82bb721cf8a6a9. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/RUAGW2401110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7792038970e93d3bc36cd7e239bcb3c33d1a42173853e175eca3f085d21cf7c8. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/RUAGW2401111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ee49f2a6f287c111193643c828a20076da7847f545b9006d077e17e0fa7918. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QZZ7M2503656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419f333577bc8fb3b3d14880451e954567236e3ca5df6245b6df94832ffce69a. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:21:49Z), 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/QZZ7M2503657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3758f99c4715b30628a30a544a1b68689e4bd0645b98d7e17dc9dd8c4254e90. Chain 2 (Bitcoin): anchored in block 957833 (2026-07-13T09:36:32Z), 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/RUAGW2402056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b28cba434caff6a07f4c5c543a8280acc0b5305d6a834ec63f59b68cbe08252. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/RUAGW2402057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843f4a5411aab580ffe8d18fe75b385fd2c47a940f0f1f7635e267e2a0fdea2d. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:38:45Z), 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/RUAGW2505103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b60e6444c3307941887fb68bb0b92566340edd91649152a35658fa39e2f9f28. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/RUAGW2505104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c7076b472b31c36c7cf8e2342f77714e4d1b6247a51fc92181d8da0a3d44c7. 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/RUAGW2505106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bfdb8872b1c508069536e3805a2d36036faf60609539693fbba1f2758c1d63. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/RUAGW2505107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151bf782b99f44196796c4180e2232c2cc035169fcbc3264a4854d83ad0c4d3b. 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/RUAGW2505108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2bffaecd7adebcb2f70f86ba8ac5971aa3be29d0f54dec8fc6f0d75ac041f3. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/RUAGW2505109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c54a4dfaf54529083585a03cdcf2dda17b91dae0a44a9e6c85a1d9536edf131. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:07:32Z), 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/RUAGW2505110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00d50c31ba512a89aec3773fa9661945d235d12f6440216c62aa1643da392f2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/RUAGW2505111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5734e2e4366ba65278a9c37f97ec7abb6e846152f3c6bb8a40b755db3cf1cb3. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/RUAGW2505112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34782231365a755265ddad6437afa8028de12d79dbeb9a5971fae08b02bf461e. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/RUAGW2505113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b2478fe19adbe429b89fff4c96dd2b70353e9cc5bb0c76ba5bb6643d073020. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:19:37Z), 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/RUAGW2505114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bacec2adadc14e63610343d91a09851b670ddafb333bff03ea86080bbc3cc1. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/RUAGW2505115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426d778f2906b016ce7d00f0747f171c2f923c4d7e474f5401378cc0d6163f29. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/RUAGW2505116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdacab9a26acb38ce9787d4145e9f4fb74ba825decd4e069f416f9c697a576672. 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/RUAGW2505117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501cbe8d37557d3071f4eabe2853d07adea397a97557257e70f77c8fc3bf3231. 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/RUAGW2505118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71d9526a793e5999b1f1a35d65ace046509654d92438aaf28628fb8a2247a46. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:34:35Z), 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/RUAGW2505119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf1a4a68899da67796ace080bb7257cd107ddc3b2c2c18a62a90aec318ee035. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/RUAGW2505120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1da7645713b48a0a02403025c1f7d31e70cc7500ce3f6b11b390d6595a861b1. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:03:18Z), 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/RUAGW2505121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec16de1a6084fb491cfccb0943a99af67fcd1523ab72a22a9d2456f47761751. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:08:41Z), 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/RUAGW2505122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad15bd69a8ef1169fe1077dddb2561baf2e98da1baa4d1e11c2c58a1f1695be1. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:43:24Z), 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/RUAGW2505123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ffe41f8fedc0096e25fbe4aabe0d3fd4758ef22f6fe2fb13764ac34431aaf1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/RUAGW2505124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718524e3d9e89ebebad3589fe5ec05be028234ee190138b48c9824572855e71d. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/RUAGW2505125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a565ad32d4d6e60e65cac0571cb8d0608eb280ad2fe7f21f5721a873e162885. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/RUAGW2505126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c0af13727724b0a492a3c49f62c4aed7dbf148a732a67245c1f5f0ad2679b3. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/RUAGW2506330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5d001ccff8f735f7ac6ea560e4ec92cc4660f272d92bbf78fb10a54ea5e56f. 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/TCAJH2525498.