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 0x5403ca64f2104fb19cd6b338adc9a8cfcc53b380480311d6e818e208047dfd4b. 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/70819f4b-e245-4a19-9522-24f349910736.json and https://artists.proofprofile.net/proofs/artist/70819f4b-e245-4a19-9522-24f349910736.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 0x1469f2ba41307a6198a50b7e52282b8d3a181a4ce399431bb0418a9ab59d3cf9. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/TCADR1831336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca5f0cfca6867d1470eba688e629faad0905c91f20c9014963db0dadddacf10. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/TCADR1831347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3dd86d9e2f3ffb5edbdba8b860128549b05c35d84f2559fc453c474a6f9f2a5. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QZJG51977282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61eb612fbd2a55f86ed8e1333db8d3584863e2acfc668dfe48643ec9d16e2934. 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/TCAEL1917677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4a3ca44716bdebbf2f473900e189d945377e8d22d30ff83b93a96f02fdaaf7. 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/TCAEL1917688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e482480c86d7fad5635dc79005d42d8caeff774523e8426265fd458c1bade71. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/TCAEL1917696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5db23ec98bf61a48ba8f089cc647572e29e9b3fbf345ea8fb1138ff36da474. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/TCAEL1917715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836a3691704e518e08d620bca7c61339ed1943256a6a98310c6d5980d3a8530a. 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/TCAEL1917810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c3d4222f66da6f0acb267dd6a2e2bf4f5b2b7fa1f903172c5620f320614cd0. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/TCAEL1917822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656ae3bc113cc542fc5845a149b9d404b5db140eadd711f8788a8792b24fba70. 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/TCAEL1917829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a30fbf733f9f55315fa483a2e66aa182aec5ab483547728de0f447ee1592a4. 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/TCAEL1917858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7887575e8861ee1204c00974d7bd90d4c719727001d11aef97c5a302b3653f7d. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/TCAEL1917868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807b2ffb6eb89c58f3fba0cddbeec1bbb6504167e8b15378edd2edefb4b8a516. 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/TCAEL1917880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31a1f44056de5d53ea20da3cc1f0c9485bb8aebeaa166728be22302f9f05e9b. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCAEL1917888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8706f8578197afa10d437df97770664dceb5a84156847432e4df11a8ba18cf. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAEL1917945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1469f2ba41307a6198a50b7e52282b8d3a181a4ce399431bb0418a9ab59d3cf9. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCADR1831336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22e1ff212467a8c2ba754308deb051c995932adf04571c95adaacf9a01c8b23. 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/TCADR1831341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5186f27526ec23ee33034c17957069fd565b52306d7bd455d0ded3e0062b8a99. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCAFH2083823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ed4d88b410934dedd8538db3877cc229e93f600279656ed21232122bd73c6e. 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/TCAFH2083831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19120e31d3059fcc606720cf75398614e24f336de724a415b65e66800f86158. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/CA5KR2081728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233872d13dbd5fab0b4419e3055fbdecec6ae8316f260a6103fb3dcaaf301a56. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T06:59:45Z), 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/CA5KR2081729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5191885614f6941239533dac42d23e44c27ee4eb22aa663fefc01ad144c65326. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/CA5KR2081730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc2d1c6ad75189584591f7fd188dc77460e23fd5219f663281df1978a2e5edc. 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/CA5KR2081731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819473d52c6901112e38f86a6e498d598ec859c6b417eb84143b48bfe1a58209. 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/CA5KR2081732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ecf8e3267348958da1d384026f6a3a44ba04ec712970802e399a954487b10f0. 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/CA5KR2081733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d18d63105834a1534284b87bc4343d7ba9f1ac8df4d86cfe614de40cdc0277. 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/CA5KR2081734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe09d850910b51d2021863af96243c0d61e679ad964fc8903b06ad2c90e20fc. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/CA5KR2081737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4603a8595d1a865d492fb2c90afaa05b07db68e510522896fead19fd5f12e38. 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/QZNN32139638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ebef23eb09f68822b65401ac96d299240cbda9d19bd94c8bdce00a81782dc72. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/QZNN32139639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0d5fe15fa75b9e1a105450e3ff4a8f08d422cf30aa97f498e7e8c58cf40a1e. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZNN32139640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b38546f94e4536f327999208e34494b893777f394c40171ea54a91d726af9c4. 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/QZNN32139641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992d5669e26e417a4cc8412e1224be19d8596ed05a95c8a1f600cea74ed2333a. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZNN32139647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032689f401f711b6917ac9f3d2ab7b8077967a4ad8b600bb89450e2cd03cd02e. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZNN32139648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce12e301c5160790c57778715f3110f6f40a7baa2a5464622d753b005a7f85f. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZNN32139649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8fdd7929b6cebbd9b92b5f9e522bebafe568c28d4722381a587ac4e8723a41. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZMEV2138608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9144bb0f7c5d213823a4222fd571021d64a1c432d985fe9885da74ce30a196. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/QZMEV2138613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4227becd21ce8cc09209f8cb147bad47236f7a33f3318eef3bd4afd983bda4e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:32:50Z), 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/QZMEV2138616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd19376ca0fd24f1fcd7ffda022a587d64f4ee57146710a449dc5bbb4eaab1df. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZMEV2138620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6fd7fe4ae334a8164ca4079ab22f11744a8020f361996b2b068d3ec3bed36e. 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/QZNMT2208888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0865a7a964ac07c1b04aa4e5681c63b5e309365c7261263d4c20fbfc8a876c9c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZNMT2208890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4834bb426294cdb83087684e4aa6512c7fb6e7f9d72a7c0f463dd93cee140c1. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZNMY2280776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00162f5af154ff73e4c1e01d3c8ad14c7a32f6e541a54e0ae2192be784f4da0c. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:07:39Z), 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/QZNMY2280781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7030aa1665b8d95021d24c10977fda90b14853040032eb5e79cf2fd3595af4eb. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZJG52386405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a618a5b75049fd0e7d31885830f651494c51411a5e16582a3b44a1b53d697f5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZJG52386408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5e53613e61f9ad46b89dd703759c3a20a1480e4e6e76b049c2558c1b51cbc5. 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/QZJG52386409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2545de170ba6fa46c7e4ce48d4a880e42f9779d6f60bccc4d6d25e1ad33fc41f. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZJG52386410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a989eff08be9fa843495714c307fc5a9f4985c3f919ef86525b4c92baa7fe4d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZJG52386411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f6edb1dc71a7dac8d401bb7b86da79b254c74b45dc6020b7ca223eb1881f9d. 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/QZMEV2385967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c964d58969dfa406d2cd893b934a57822c27415279c891bfffcc512928ec6c3. 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/QZNJY2327533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c05789f32b0945b510d3d5b8368c3a073aaabb739d0a8741199529efc3cef76. 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/CA5KR2392738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f1fe23701baf7b527e723458c4de65a0cd5537fb32a0f8947458fcca4320d8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:32:49Z), 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/QZW9M2340052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765a4838dcb41ae86cd6f007e07672183d4dfafb3d36a3800887852ee5a0100d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZW9M2340053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4379ced6e1a7346b6688cbb5a213e85e03e5ffd118622564d9e9b6172b85ebb3. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:21:10Z), 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/QZW9M2340055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5937b02b18c3cc4ac2142194386a8f0e0bd1ce8c26101ff0ca9113abc8ef4d3. 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/QZW9L2370562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2543c05474fed5415c229242d5d1ace65e6b13de2b6905966b594d902a71556a. 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/QZ5AB2482289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa413bb122d76e35bafad1a5a7e00740dd93f07900f5b2b753bf2dfa582db3ab8. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZ5AB2482288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcf216c42d5264ea5a5f0caa83dd3ab52fc6e5d7c9e242f3c426d8553534e0f. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZNJV2451549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf72f451672ffb69c8d00f84dcba5e5a44d06f77f21dc4868990c9051df3c48. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:49:45Z), 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/QZNJZ2491113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d72a49a1ab86f4f28a16851b3999e38a01d5a82904628754572b04775b3782. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:18:31Z), 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/QZW9K2410773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4dab7a479900f30c7904438dcffe9b29dd70b009b9fd8ded9660dddd3d804e3. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZW9K2410774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84bbb4478d76ada3d875b2540a5437ae308a1e69fae9426a5ce05eccd22caba8. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZTPX2440136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4db42530b0cffec1931bfb67d5f3ab55867f70dd69f8a379141cbac61a5412. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZW9K2410776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5914b44a49c3f9a6f52eb7bc04fdf5bbf7c6ad3331997fb0572f327a6c7acaf7. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZW9K2410777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a813960d093d1d3fba675644575971e96c311e17e9e19cd16dbec87ee8d0ee3. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZW9K2410778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156d1a49b085bc43e0f64712b9bba3c9a46f5a43a4897b77a589b901b5bdc932. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZW9K2410779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01de49b336757951070ed5fceb93974806070f7c3413ebdbb0a2ef32fd5eb0b9. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZW9K2410780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f26736db07183da8aff2f7a8803ab8d78df7f08c23bd8e0147d77ff1da7e34e. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZW9K2410781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ff33c40afebf70e47860ea5e623b2d67c34e53326821500799acbb8f68a9c5. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:49:57Z), 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/QZW9K2410782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c53f8d93428d6eba9df15de866029b6c768e40e2110d8fa18135984bcc5f1fc. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZNJZ2415798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6476168d132ceab1c4ecdad21046edb59fb3e843da06f78628e1dd019b7d6370. 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/US7VG2591658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3715032b9623fb1a2498c6b335f1e4f97f18fa07416fe2d5d54623fc5eb4d322. 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/TCAFF2066792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c99a45b580ccce3ea6364ffb0a36c5cda45d73273ab7a46644d45345bf4803e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CA5KR2392725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af748c3cd56cf46f898cc7e9f48b1d1f99437a468a440e47257642270900dcc. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/CA5KR2392729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c05789f32b0945b510d3d5b8368c3a073aaabb739d0a8741199529efc3cef76. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CA5KR2392738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49d76816718a8bccc3536553907146cc5eb2fc334242d9e020629fbc23a722d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US6YC2203477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8aa6975fa3ca72715fbe313d40f83af3e4663f87d352b4f844570a6ce8f26e. 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/QZFYZ2163627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38736faeaed89c49232a9e5be6c5da62c16aa8037dc0a11a529ffc0b3b6eb27. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QZFZ22036851.
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 0xfe31398893de894374418e65673621db0a07ae0e1cd2dc087094a98f9e38e511. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZGLS2491307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b82dcc698f3a52d265ab7ccfbcd6fd208a5418a03dd7e9a5b0cdbb1cdf1499. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/QM42K2134043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a2d0beee6b4b63a3dcce65e21819a002656113621527823a144df1d614be08. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZAKB2302089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8895ec81a56c6a6e6972f61d66ed3b7e192014cbea3b6ffa68ea63380e9714. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/US6YC2203479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b0f280680e503993e4e5a9de1b79978aed2617515420631201834b8073d4fb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZGLS2491308.