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 0xab16867ede48960c5ab51cabd045cab5ebb480afd9f7ee239a709a3ae1bc955f. 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/40fc2f92-e573-4307-aea9-7c5e29bab8d2.json and https://artists.proofprofile.net/proofs/artist/40fc2f92-e573-4307-aea9-7c5e29bab8d2.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 0xcc9246fcaf778f5008d38e3d567d4193858092b3b2a52e46384e472673188858. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZK6L2001369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92185df8a05ce97e7c3e3a6ab434938df468fde1d02293ba39debefa3afa13df. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZK6L2001373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc184d4a7dbfd2c5ef57109f491b3b3bab343dec3f464039f68d4a362fced6a5f. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZK6L2001387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b07ad64e08e1523a61c9753b6c09cd0a9238e5dbf3bdb781cc5c9f2fe6e34a. 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/QZK6L2001394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a75110a14d52bb913338cfc41bfb53fe8a7220dd55d6501b1937e8b9832c7f. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZK6L2001382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b14197536d50448dbd8eca4dae0bcc4ba04bd4a3b562645a740ae9168eab411. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6L2002286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff6b911760170ee7bdc73c86e832ce93116d5f96e87fa8ebf8921cbf80fee26. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6L2001372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4aa3b3b443a5af85d39d810df12dcd3b30d1beb122c374db936549a26581a8. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZK6L2002257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56845e359f4163b9409f2b69c66a9c397666015747663168d3887050a489aa70. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZK6L2002324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd090b99585af0df34f68c609598706b5ed9a5816c59738f8fe2714d195b10e50. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZK6L2002307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be2b1c182ef72b778ca40e3aa96dd8cad4f6eb0e5b6f1aaeec2df88e891ba71. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6H2002559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214777f0e33829de0d9b923a3b838efbe3490aac1950d6f27f1ceaac65a85606. 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/QZMEM2097934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51f5e587c035e0506e1c7811b7f014450fd2f3bed665e19885b228f830fb69b. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZNWT2021867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff294ae1448235a1a81830fb7ad1f57ae18bb1c588be4ccab955e990adb1940. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZNWT2028064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb032b5d8cad97d085defb754f8f604a47e920cdf9c1b2ca7d343480b580cc6be. 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/QZFYW2152569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162076355fe983be2f10f638dca04e62513b6ca9464d8cae9854d6117abbb30c. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZFYY2102811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb51dfd541055109053e5af157eac8541aa48f7fb46d6661914968ab77b74ec5. 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/QZFYY2104779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffb3ab5202786560a85a5be120564c44375c3de98787baf8b88ae04616301b9. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZDA62291139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb0b2cc2cbf9af819939fd9ea8e3825f1905ccbfb13de59b2feb22f12306618. 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/QZHN92269660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05985680d24dcc2704362954e3cb3ea5791a1f5f23375f901d9f92fd7ba73be3. 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/QZHNB2216090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba689cf53c7f1311b05ddd0c4bc74e693bfdefa9ef65c5d85f178a8a46e1f9d4. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZHNB2216095.
Fumandome un porro con dios y mi hermano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd172b724347f7dbf333c160e8d0a51b7c587c04153136089351d4c932b2e4bfc. 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/QZDA42348712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc421da8a67ee333ef8b8f1c02156bf7356036e73b4e3c7ad706bd17bb2ceaaa8. 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/QZNWY2303421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8bb404332478118dd60ebe7c76e75f1c3505d5597c0d2335e72f68c91f85c4. 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/QZTAX2392630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88504ad8ad92e7f12fe7b9852d5510f9b5c28a157cc8cdc10eb53c77c3e1f6f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZTB92338352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7119c61de9248aa09c4fc3524e34bbbc725415514fcf3bf9221aeaf768e8c900. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZK6Q2441816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d6a6048b7fe359b8e706039664684a50d9131e585e32f33a890e25803eda37. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/QZTBF2492009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3baea8b1d94bfe9e39a5cd46b374bfd144074affdc3070b4f9ed32856a9819. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZK6M2561724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a11dc796d279721d8dba2683fc43a7ab1b230322b235121b67af40769242c97. 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/QZK6G2592328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430f25adf30c42986c611a2beee56d4ecd08278c37df937cb9b37c90a24a21c7. 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/QZK6F2543935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0e62b710cc3593a3829a5db15f7e9acaaf87e9b8d9a630c9343c9aaa3b2a79. 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/QZMEN2523272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301f4f333c9450fe40e174be3da66538beba43d4ce0187f87bcbcd11cb24c01a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEN2514980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5350eb5a7c8ca7b657a9ff6dd3648eab2c755aa57896d0dbf89e19907b053ffa. 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/QZMEN2511110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2a8ca07730e268e5e2ee529dd0c3ca682f93e13b39ca0de15a54c496b41a70. 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/QZMEN2529372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a136737135fd5533ce8df7ae30f19c9daebee3907d57b1133b0816a880093d. 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/QZK6H2511258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1edf6048a543a5ea82d9e5bbfbaba6eb2ec5474aec6153f3dfc6906664a3cf4f. 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/QZTAZ2593374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d88329f71ec54f1295c8e25cdff5cab6dafc0ff7ec6608c2f3cad9113a5463. 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/QZTAZ2593392.