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 0xcc45d936e10debc75c24a3021aca3af240044471cb8ca7d833c62ef4e63fedbc. 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/f3bafe1f-01b3-469f-ac51-94313e80f0df.json and https://artists.proofprofile.net/proofs/artist/f3bafe1f-01b3-469f-ac51-94313e80f0df.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 0x7054239672893c378551a3bb424db3b79e9fc2b5d8fdd99a77e7b105263e05d1. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/DEUE22414928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbd8562075f04ca02d885ce236020af7b3cf9f49403eaca84027c6c2ba111a3. 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/DEXO22305301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69e348f9f31a3e06a166f84a53f448d83ffcc26cd9527920b1ff0053a4b8dff. 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/ARF412300256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaee38d2ca0547c34976d1ebdb71da03d607e76ca4f8f131045ea56388960469. 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/ARF412300330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ca54a7c58f6ed26ff47bfd650c9cda20105bda68b41456624a0a28c618e953. 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/ARF412300281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c550f380f3b948a36950bfcbcb2f700134761a6be361fde48ea6e3abeb75adf. 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/ARF412300275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e7f82a0da3ba137b826330bbd30bd288e2b95b71b37ff26c7c0e8320898fe6. 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/ARF412300319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0ab4bc1bb8cbda13dfdd4169d15191f00dee627451b9f6072f2399ab83768a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARF412300353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce51804330b42a762924aa719d2f4789697cf7920d56b8a0fa40e3a1cc434006. 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/ARF412300343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e94eedd8af9b87df399bd3b592e4baa3b740315d0dedcd211c4419fd18a795c. 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/ARF412300354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b3fb74d9af0416c38fb5e009516ca05be25139f530c08fa6102c25b8f246cb. 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/ARF412300311.
God Put A Smile Upon Your Face - Ronan Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ce315c3a001ee4265824b5d3855e47d4f19ecf94b43160f8afeac4925e0969. 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/ARF412300335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6e15056bd70564c1d1e4569621cdec66597373196b87b81278f9e105c589ac. 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/ARF412300321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd224744315ad07f4e0d851b62c409316c9bf722fd29f6254031820b4b5bb80f8. 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/ARF412300355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49e8b6fb1b5ffc942d91282373d66cc325250751f9f94713de5949928f59b42. 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/ARF412300356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1bf12393a51891a7ae5d5e5076705b5472fb5b51d7f8b9a62a3d625e194959. 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/ARF412300302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71fce8c1d2151ca6fc6a25178360559db26d1e4f63f16da792358c863719ccd. 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/ARF412300357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537eefef41b7396c49344cfd2834a3429cd8b2c51512ae62cec352229b1a2e4b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARF412300358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d2558450f9f73bfb54629b7f9dfed3e5a393fb6f02cebcc88f6389241c8497. 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/ARF412300359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbbc160f69bbb3077ec92bf568e42f846dbf45e5f49702cdeed7377238a6048. 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/ARF412300360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99653174c61a15c810af90cf66fe267d544a52dd748d23191da28f2ef26b06d1. 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/ARF412300310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6b256167e6d3ed3994a99ae339daa165de0e63365a33a5f0fd93517a470a22. 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/ARF412300314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec39d86d84b0faafb482ce2815164bba46599be6225e1244e1cfa0a61d50ecb. 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/ARF412300361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62748eb7e628deeaee1296e0ecf7cf4c00dd136cce0c1d2004d6a38fb6eb81af. 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/ARF412300362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa70212c88cc9358847a176cae7002829f327c21d40584fbcf5ae26e55b1b470. 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/ARF412300304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f96b9d7dfb60c943ae136dd04b61db29dd4e71f0683a64dc716a1a6f06aacd. 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/ARF412300320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409bdb0ed52fdd92c2a696aeb93733878626697e3be32c3277e6a6752ca10e9d. 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/ARF412300251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ebc09a29bf83d619abe34afbe7a4cc1dea1314f7cbe4221e10fb7e8e94a6706. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARF412300363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d20474bbbe970010f72536ba221c933014fc7c3a0fedf34514609547856e9d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARF412300364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb48048718de07f813ea6585ae851fac5d8c76e806b0eb788a0c64a49e45b875. 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/ARF412300326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfd93443b228b0d8eb812d123ab1f83ff116ced3cf788d38d328751aabbfab1. 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/ARF412300312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90d46cb4bb1b32880df21b58fa6af2b88a01fca1bd061194e5780b5b1c59fa4. 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/ARF412300365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483f865fd2f99407bd5a0b90971fa14e60d5219486a731a41f1b09af7a1f7852. 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/DEXN92466438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53003b1cd9dbfc956c03f21c2ca7566e6bc951139cc0d12a1104cc6557b0504f. 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/DEUE12487586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230da82e157bee2b9faaa521b87de03615937e97d17e1dc0ba3c7c12732992ed. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEXO12399996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409bdb0ed52fdd92c2a696aeb93733878626697e3be32c3277e6a6752ca10e9d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARF412300251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af02343c7d985980763d3041306bc7ec6c24b13ee00e2961f2f98fd184fa3f7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEXN82399996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d9e502506964602038224bf9af95926a40c9bcd7cb4207e4ede379c93fd7cc. 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/DEUD92399982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cc3863d3734ead9afe95afb20995ac0f6ae45aaab9cee9fcfa8dcc5228b84a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEUE22307416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e94fbf7d7d339b8eda6472c0213153130e29f6afbc06efe44e8ed40c8eb06d8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEUE12395680.