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 0xe145353dda7331c331a1c3a98f58c04598ac38d0c1fba4f009ab561ff451f3be. 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/466e0da5-e7c7-43e5-af6d-552521f9c7cb.json and https://artists.proofprofile.net/proofs/artist/466e0da5-e7c7-43e5-af6d-552521f9c7cb.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 0xf000b0d888ec1b66a53b4ffbd4b6a7826602c617526e40bccea14039301d53c5. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:37:11Z), 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/USCGH2002513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0101c688af816a0d500cc567f035ad8609ff190c6013105c23c96c34964c90a. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/USCGH2002514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bc83dd0f51b56da4e7f1703986fcc469ec8be23377542c1b642ba950b44e4f. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/USCGH2002516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7bd304cb6c9de78b1dc7f0b5d8000f1199b0f4a042c03ef7324c4a4adc8148. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/USCGH2002517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d484ea87e88ca7b486369235ed0b4ac6062ef99b8b0dd7a8802c0833974cb25. 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/USCGH2002518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b155db95aeaf43cb3e80ee0df0b046b13cf3b1765c6a4886378ec3922b38650. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:53:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2002519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb26a70e01bd7c6aa484f51ecee70a673a345acb9467fab8941fdc6467543a3. 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/USCGH2002521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85eb30c0986989af0d0f8e7d59774fe49da450d7587a33fdbea3d943f7612e8. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/USCGH2002508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e71bdf84ea9083d3e27a9fc20dd7eb7c332997edce901cf7d75e8c468b8b895. 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/USCGH2002522.
Küçük Tavşan Ile Tombil Ayı Oyun Peşinde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f8ec7e9bd2d88f0a2c67663acc22c565e860e32623bddab02c40516423285b. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/USCGH2002509.
Küçük Tavşan Ile Tombil Ayı Saklambaç Oynuyor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4db33518a782edb42777c8e9bdea3b0ea240724d4fb89d6edd3f11fd6e3f75. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USCGH2002510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823c1511f770254531f52adc5e1a8d7820ea8dd449dbe5ebd8b22272563d0906. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:44:42Z), 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/USCGH2002523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d22fea80f5cadb225d970c4702c8b296a77ecdaa70ff8e22b6b573d8a50ad9. 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/USCGH2002524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88c0a47d6baa0e3acc8fac989ee5a1d11f95084f0529abe7973abc0a473cbcf. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:26:34Z), 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/USCGH2002511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e86ef9d0757ccca43c829bd100ab89ebe5411a51e680dfd2d71e8ad7e7c1442. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2002525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e594bfb09be5872f85ae209e6c92786995e97441845e09ae5d9afb7fb2a80f. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USHM82088488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3eb48d9f93a2bc1d8ae803e9a45297c62d89f9dda27e87d9b105ffb92c580f4. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USHM82088500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee38d032d99f6cf1ee5bce358ede9da0db0de8e375205a5b4936df173209e37. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/USHM82088501.
Küçük Tavşan Ile Tombik Ayı Sek Sek Oynuyor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3623052a7b53b5d7dca3c41acf512b9af0e1bf0793fbf1991b74a56681514e9a. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM82088503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08a802839ff56f7f61aa7a4b667c8c4a1ebb476b7dfe42f4568c12c91488383. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USHM82088505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5daa36d8cd4571ac280e3451fbde2fadb4d6c98c675dc6ceb185dc364c9fd5. 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/USHM82088496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c40c69f5975d89399beedca37903738febaf285fe2412e39ada4378b87af969. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T08:01:37Z), 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/USHM82088506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b080020f2d434a6421a2dfdef526d9256c007214c74c0813f53fa7d9063fb2d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USHM82088497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a340a7401374aca1befd3173d22cd3639347fe618ce240535add8603c95fb90. 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/USX9P2038617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fc27c754bbaf0ff07927f4118ca4803894d0dcce8fead33c738b3b78508846. 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/USX9P2038609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12b03ab27c52f710d286b3d050392efb34d9aa9bf67aa5a6029c0281b21e536. 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/USX9P2038622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2225cb9ff409876358cf4aa5a5c7d087f58c78be4ba3292eb6ae8b52cd8d7979. 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/USX9P2038625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575d9104a139464fca8c5dfe12dc6a5e61a6c33ae9b81e0e6375efdc3bfbd633. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/USHM22197040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b5ec872c9dd90db3b5203d00317cc5e9f7e207408dc76605bdacc574c5a35e. 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/USHM22197042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae625dfb529f0bd91b4ecc38bce073c3cb86bfad9bf2a5fa9ce4ee11b5d2d26d. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:46:34Z), 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/USHM82291317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9dd6b0f7809e74b70bc3ae28e23a805bf093a576f2a4a41df46551788a10df. 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/USHM82291318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de7dd35a429d2f3bdd7cfd4d650ed1adf956ce1dbd1a20b5e0d2480f90711b6. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/USHM82291319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643f1418b59500cf4cb81d4f85ed914d77e37f07f3d0cba2e96d036e29ad4607. 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/USHM82291323.