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 0x8a879c00b310858f88bf9f305c27bd568e88f54c5a7d4b1a1b1988a62491906c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4a3ccb7-bcdf-428f-a218-81a6ba2133ce.json and https://artists.proofprofile.net/proofs/artist/d4a3ccb7-bcdf-428f-a218-81a6ba2133ce.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 0x2d6ab81f06a85cec04722f31669cd1b785b80e560347e59e136d121c5b0af4f7. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/AUBEC2303582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a411fe91f677a8608c3926dfcaca1eb88fa485501e3c6e0be6dd8a3896af232. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/AUBEC2303586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca7c56985b157adabdea895dfd8b6c9d8b344af142bea8dcd8faf1eaad6a55c. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/AUBEC2303591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c61fcf58b8cc816614b6d356a08cfa7a559d7faa4cf4246345c2af050b515d7. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/AUBEC2303584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc0144431f23e4f06959a363cf8a546a32ef67601f6aa20d5fe2a577c9cdb65. 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/AUBEC2303587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0746ec5f5ae14314e460422a34c3df89b28d402745fa37e5ef43b50ed08fe08. 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/AUBEC2303588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80de8ed2e70b20860557bfebd9733d77ab2fcdc817bce27a24aa5de8a72bb4bf. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/AUBEC2303585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24261ccdbce21ef26a9618e9bc0ff57fae6176a67d50830a8cf6c3e8878d5ae2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/AUBEC2303589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0fba496ad959f4858a567e5f459c8c198c0d5858b0663db4d59b7dc468ff9a. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/AUBEC2303590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857cd6d8679fe2281f58ad1df82ab04de4818218cbe6d531bdea3075a24bdc55. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/AUBEC2304767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a3cb99e753e11c894893e49b0840678e5edcbd05c181726ca7e61f2b46be73. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:37:49Z), 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/AUBEC2304766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04500f23f593a8c8181c4d416437c6ece78090840b4e73bd7b250a7f1a5d4732. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/AUBEC2304752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1339ce927136f9eea49f03cc5b4b1c9664a9713816be46cf1d07c5c2fa6563dd. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/AUBEC2304753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8620119a0ecac1343229b37f6eec1837b65bf6df9628f3bcebebd3bd1286b3. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T03:56:38Z), 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/AUBEC2304754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae077575f56182e5abc14f8424e7565f584198f7931783804fd56a70827d6006. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/AUBEC2304755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3189f32abba657b0da386fec64a54a6f7d821d82c9498a605c21f4c5201d62de. 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/AUBEC2304761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9485f0418d86a3325342770480ffeb3512f79008b663d1e720b7d2f6f315a157. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:22:49Z), 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/AUBEC2304749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be32616f68432d1ffc7c144b429c8a92e77f0a43dd915a6ec8932f0ba29e722. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/AUBEC2304758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a631de1fc2a9b7b368d576620c6b4e6948ea0a2c89e9def69e3a0f996d03718. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:01:49Z), 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/AUBEC2304764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f59756c42a047849785e6398de553954e4a16a1ed143b69b65b89aa00c2077. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/AUBEC2304759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9c742b89e4000fca78c9c85536e9a4ff7384ba80b173c10591466904d79b40. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/AUBEC2304765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25e57511b40990c349c9eb6ac6fb36a691134914acbfd54f752cc80a469a68d. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/AUBEC2304748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782a7c3f0ee96e1f8e932c72600c899c5142c13e25e064f37271d69ab6622ada. 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/AUBEC2304760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4c4d094f44dbed388ef4b6e926cc5a553789cbd9fee41b5f50d28d49dcb797. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/GBLFP2460699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3013c32a349db11d1ad3d4e62815ea7ad50891015f62bbdc1227b8f0a24f7e. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/GBLFP2460703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44c7ef4cdd653850f9d47e09931a4cb8b12b8c4be76cb98e834485b9a0087db. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/GBMA22465301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bb62c2704a57de3d68a7059cd0fde8c33eeaf0a9efd27dbe19e5429c6b31a5. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:57:15Z), 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/GBMA22465303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bc428a71afdc587a87474b514bd23b96c7354d563d74a97aceffedb2f1cb13. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/GBMA22465304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88bb2d53f5855cb1690ad3b7e2b34161ec6000e84d52f960e68f099bf5d714f9. 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/GBMA22465305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dbac6515c60098e591ca5fbf964e8846b5d3aaa41ee0616cef344e1417833c4. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/GBMA22465306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab20f76cf5a7b8f3b785558281e7c4b806f14c101666a40bb594c56d24100441. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:47:21Z), 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/GBMA22465307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc326a105db03f6a4aae9acc22a401ba966c1c1912fb17e6dd2e03a6e13268d5. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/GBMA22465308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9e5c0cfbcfb17d700b26b8a122df07758baf0a986da687de55a0133e48d7b7. 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/GBMA22465309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb776fe7f305dda3235ef0d5fe2d8b18a2b1084a76f90c75cf8b63e89c92edef. 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/GBMA22465310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020c0619a444ab213281ddb2de614086e063d0b860f17ee42ba0af597a396d1d. 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/GBMA22465311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f85633a31efe9eae5b52d73c827e53d53f3e95397ad2f225623bbc76895e67. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:06:00Z), 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/GBMA22465312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf7b450e30ba9336b71e305bfcdeae8d91f790be286964153fd82b28e01c12c. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/GBMA22465313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d3c576bb8edaaff4b572ae3db813ffc632982d9934ba21e15ec0c8ad0e6708. 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/GBMA22465314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e5a01fbe7872598fde6995617c730e8d25474f5e2bf8dd83a365d9b490909d. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/GBMA22465315.