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 0xcbbfc191f13fe0ce6d48008d5bf4f7bbe6c70ae4abcb566d29c111056fa74431. 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/2f8d4773-cb07-456c-b023-b604a994cb69.json and https://artists.proofprofile.net/proofs/artist/2f8d4773-cb07-456c-b023-b604a994cb69.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 0x8c8e3d30060fc6cbce6ffc59000e2c5c6a05ee667b0558a193ef54bb2e973d5c. 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/SE5Q51902515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a683c2015bc5d007b216332ee7cc5b93533e369ce2cb06c2df098d99d3214fc. 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/SE5Q51902513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bfd43b6603adcf46ae1e7680b03be4d979509fac6c5118ca5e2c042a80b3f76. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/SE5Q51903554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869b256901015aa650f635a335784760ac624e5879bfec8be67612d5fff51e54. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/SE5Q51903657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09aecdcf140318521569535de90067930acb34e2488e04c53081207d92996ea5. 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/SE5Q51903560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2583378cc38b536c4587b5b3b33fa334dd02a297ff94ed3d2755ffe9b11b9dc3. 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/SE5Q51903992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35071ae30d125aedd3a619448e75b9d6c07bd363f650f0c23afea98db55a181e. 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/SE5Q51903860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b3e0fdb84ffda2962fe25fd9d7ab016c6e424afac4d90c3203105b57eb7fae. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/SE5Q52000437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7aecb39bf7508ebb696e4c6463da2e5dabfd2c1450dc7f6d8d369b726fc105. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/SE5Q52000086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ff6a7291cacc10f6a670b243cddd566c2a382d4ec5f4f648265c071fd5ee0b. 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/SE5Q52000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994def43f2180c0c3e85527d1621398387fd2bc5f59ac9d99df2f93e2db59db2. 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/SE5Q52000767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275a04ca686d14fa2ecaa8c95e0813fc1ad1a969389a039f26e11126c491d949. 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/SE5Q52001369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5da1273b310fe8a56adbb347d6f2450bc9ffe3698b15f9cc3e2d13d1af0406. 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/SE5Q52001623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d31c3e4418c980f30937488ef0af8878cae2ffbb92ac1c36743d44661e2dfe6. 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/SE5Q52002194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeecbf26dd33e78441c28ab142b8736e2d57a1300295e511f1e00f59de48b5bbb. 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/SE5Q52002108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c2f5e41c031932f1606bceb287c339e526d7ec9720cfe79bb53038838f5a06. 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/SE5Q52100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8cc5276e06aecb4a44493f19691ce59db3661046143f725cceeb0731a2d0ff5. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:32:20Z), 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/SE5Q52004094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383042753f12cf43e4a88cf723bda4f38bb551ef664bd81af69311fa9f381004. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:06:32Z), 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/SE5Q51904004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be2e68a3e5f847fd8788809358553e2be9313ea9c0d4787fc305d75caae8925. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:33:22Z), 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/SE5Q52003666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e618b37f4bfe65ef120048f0b67dd702cdbfe5d1e3626fc18993a45fce27795. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:34:59Z), 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/SE5Q52101500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e40c209a8c416803c27cef42a4d1cfb100c2896da960b00aa2b4bee77c1da19. 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/SE5Q52101305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc797b15867fecc12e20978a4fe541f8dbfaed58e3745cf39f53f552ca31e44c. 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/SE5Q52102696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5803526131baf964bf0b43672b0b6885452616a67cfe3ee3a3a71ebe63e6f4f1. 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/SE5Q52102083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1f367b03d477879a1f9ca3c6b6188d3a6ac4f7372f0338abf5570a143dad19. 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/SE5Q52102121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68061a34c760f402e2eade0a9353c7feb70aa10f852c38304ca946a7a28b3ce. 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/SE5Q52103292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78779abbae0bffbf27976596f9f98a2e2f0039c97620c329a4a9e99d902158e. 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/SE5Q52102858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb05d754eb9bb6b28a4901d4e4a66146334431d60b57f8c7343647dc9fa31ac. 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/SE5Q52103220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd009cc09b80b2900df2281081aabcad5587a9ba74830158fb949e3b7e33ce457. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/SE5Q52103483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1431c69341b81a8a3ebf294d249419523ef04949151105529f000fb4077b85a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:40:57Z), 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/SE5Q52103295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7446ecf282e2941032b89faa2da6dbefff5b43c83a57ca4c3d248650d255a4. 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/SE5Q52103230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65764824cb0be9e6503256c51cc4cc30ab56222afa698305e38c120d4f7ba48. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:16:52Z), 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/SE5Q52103502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e052218db62937a860f7bf8e2742ec172c914463e9225c86fb8751a844d3d2. 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/SE5Q52104167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c187c2c1509b515802beeba90fc762618e7407feb82587f949f58b255e8519. 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/SE5Q52104325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2331f8aac7fa915068ad61cebeb24990989f4126b60526448f50df12840e8ff. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/SE5Q52104628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bf96be656334935907285404e4425f27c9200dc428b10a6231833ac115770a. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:51:46Z), 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/SE5Q52200507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f3a243093240badcfbb583eb2adcdb5a9c0ee5bc7828183eeac1bfe1589efc. 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/SE5Q52201356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde94d9a050914088af598d633e21c1a0bb779fd0311ea77610e9e84e7c605af2. 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/SE5Q52200643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c2a7da302e9ebeb08e0feb4f6a6d66b5e91fa4801f3c4065ff74794b374dc5. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:37:32Z), 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/SE5Q52201186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2fe781dea242ec72f5f085aab81eb475193261b596e92ef3823ae1686727745. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/SE5Q52200864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df8ac2f75f702aa479ce6fd8e6d198773c08de4c2cdf34c3e1430e13cc24304. 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/SE5Q52202486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910c89c0e84273860f4247bdef4b17d5a3d7e40f5ece3ea9533129effbecb1c1. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:10:12Z), 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/SE5Q52202474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141f2261a8df148f1bbaa438805d3fcf241462b0877711114bf8ca748d287f8e. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/SE5Q52202479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08460045cbffc20eb9969c559ee87e170e28ce3f5b32c043b64b9842f47646c3. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:32:44Z), 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/SE5Q52300169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee78e650f02f659ea7098b8b96f5ad4c8366f4987f8401f2216c10aca2335e5. 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/SE5Q52300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96259c21e62a7d4db4bbc1eec662b8ca1ac1315c3eab2d16675615a8a9b6803. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE5Q52203802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c89c375b18e5ac41b96236aa10fffee9c89f6f37ac657dbbd7d3bd0898127ea. 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/SE5Q52300434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14906e60225351845fa5d9a583d6cc1e68d2dde65f1f15d5433aeb23e6266a62. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/SE5Q52300433.
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 0xbdf8e2c8cb39716350955e19bb713c112f8d20337734ad789b99ed435397f493. 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/SE5Q52203801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd550c3e32f142b27a9a6639d9f82f92f642457366e56a3e0578ee2d3cd624c9c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SE5Q52203958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40dff7e76f3ecef123325138bd7342ee6a2305d75314ababda33c0da87d46dd0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5Q52203488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057cf1d4abcf2a7255f439578535d67091f5c9c5b1093c2d7192fae410fc3e6a. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/SE5Q52300435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1f85192d96b2998ec630f02901fa1ada8f180683832b87f6b2b117cc1fa5a1. 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/SE5Q52202480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4bfa263b0f2a9b58ff11d28448eeb91445e7f25f068dc4359d20c70b9dc325. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5Q52302304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ca829692a665328ff4cee4642b6a807db43b58babb0fc378047ecd992d00c0. 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/SE5Q52302303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739ab6035c7e3807775d46c29d803f0d52c4bd66b7cc830502c119a3af7db3ae. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE5Q52302017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020a95d3939e3b32487aa4c936ad1779c0e3bcfdb41cb12de2d33f86776f233c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/SE5Q52301793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72dd77dc0893f4990eabd3806c9a1dafb896a7813e6de29541e61a17c24e69a3. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/SE5Q52301777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe271a3e7faf9c229eadfcfae8fcff7072f3dc183dfc17522b458899423b018c6. 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/SE5Q52301776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14832a97e040802700942e17dc7816624452b22d2e50bc107955039c5e61a73f. 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/SE5Q52301778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5dcc7ee6178a1ef8b9e675c0c49cd292beeb4b77d7984ea68b2d93213a616fa. 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/SE5Q52302786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0812c302001b8c7b60c3efb39fa39997a5d430778d1b92155c735ff38bdfdd10. 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/SE5Q52302763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09d7ab943fa9c916b07c3e755844aa5a36da4b333a4579bb7b3ad17c9319616. 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/SE5Q52302788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33e40aa92c4148f6a0eb9a04a1bacf8c8d9d04184f491915e022899597ab391. 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/SE5Q52304648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7277a4d2f986701641b1c0c70613feb9c62558c32f87833921936de9b63c8a1. 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/SE5Q52304676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64085efeff070228957c81c7b2205cabad7577c494dbf45be084aef330756381. 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/SE5Q52304660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa120c6b5fc67b1a7a05668b49ef7bc6c683bdbc455dfa725a53f06b7735a778c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE5Q52300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf78d02265362bc46a9b31ab17ad2a65c2cb0cc62de43577cbb2c711c90a206. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:05:59Z), 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/SE5Q52400469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81d756f947289dbe19cc5de36aca8d489c2b6c14e2df11f2062d38c9f4cb4bd. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/SE5Q52400501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8008389ecfc89066d5715498c17eef1f97e3d88dcacd008a0c1513c1bbcfdc9a. 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/SE5Q52400954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf681b872b29d9582f786fbd6f9d9426978596e2ac41fd5f9a7086a94baf0e5. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/SE5Q52401021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33b3dd173cbcc4ec2e159e1776bbfa3d5bd259754ae80d66447d593bba1c5ee. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:28:42Z), 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/SE5Q52401019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe139c4194852e30597f9c36eae1fd324828429235f65acdba8b4f54410701b. 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/SE5Q52401017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0847ada3485051579947962b1b606e25d2cfee055d6a7b4dbfb892027e9519bc. 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/SE5Q52400945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2304f065fe23fde33738e302ee0ca8fb38049bc852e3b6bbc01ad636f36c584f. 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/SE5Q52401537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd5e47a8db95fb8eb06a9426bf46ef8578a2d0b7a57512300f2686b03ec29f4. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/SE5Q52401536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4bb6268aa3905ef1df54b4f9e82549a02ffa5f0f3126c84e2fddaa18decffb. 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/SE5Q52401964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791f2a427899e9aeccc86af45d265a56d35746972760be3b7e7ace5062f7fac3. 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/SE5Q52402227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554237295a61ad9804c3c831712a2bdfdc734d1192231f22e8290da9cec81b6c. 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/SE5Q52402228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe366cb23fc573521b96de8b5071475e9e69ca6083e949302f4f9362949eca231. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:09:38Z), 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/SE5Q52402591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0601f5957b123b56c97484b933cad2f8a8f596d720e9521ecbe7d13487120c. 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/SE5Q52402827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a79f9e2cba500da1a5c5e6e4b9445fd1c3c197ee2ad3c30c643d96afb8734b. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/SE5Q52403252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398b68d2121962d28a98b581818cd45e494391924350643280bcbc16a8d6756e. 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/SE5Q52403591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb108532253c87ddcf19da8919483d0fc67b67fbd1b082ebdbf81eab576e3b58. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/SE5Q52500082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67305a9da6087ee9f2e95765e70eab9dfacfb2a1acd2a1719790c70feca31963. 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/SE5Q52500087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f30064f21f8e4004243e01c8511e4e3783976ba87b9da2627f44d1cb772cc1. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:03:56Z), 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/SE5Q52501307.