1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13ae293f700b80d64aeafff69030f87150356fbd7ea4271b381f05a82109934. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/68ae60ca-f612-40c5-b4cd-f6c3b8108bbb.json and https://artists.proofprofile.net/proofs/artist/68ae60ca-f612-40c5-b4cd-f6c3b8108bbb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa23d35ee2efa16fd4c0ee14a951c86b8414e7d9e960a2bb107a4b5928f4377. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:56:32Z), 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/USHM81848434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b1b2cf7c3b5de9bb201d815215fcfa8bb1b4cf44ddd71499af8ffefe30466e. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/USHM81848436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824b5ec986b4ab286545dfa0ea35fae3fb1cfc0e6afb050de1482649caec76c8. 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/QZES71976076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3fe4e1b736dad98d77534923db1a8e824178a071598186f3d158415487d406. 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/GBYEJ1900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1ba8083dbfbda3faab1f4230d0174c7e29c51830d2bde6239c561f8b40658e. 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/GBYEJ1900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7130628bb590569f2982fd3331017d2fb42114142caec0a189298516109decc3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBYEJ2000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f4b26a0b52a2d125e39bd0feeaa827cc00306b7fe81a5f57b1533932991227. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:59:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBYEJ2000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85dd09c03be6765fe61328eceb8f77d7990c9c30703bca55682b82770f312bed. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:23:28Z), 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/GBYEJ2000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffc1d6a183c07e7945a786140e3aa4dd99922b43bb6326612d4133b597372a4. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:56:44Z), 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/GBYEJ2000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0baf2abdb5b9dee73ef0586ba2d6019a3ffb9d0dae54da926a62b398b15fffa1. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/QZNWX2173291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6638bf6ea794fa454e4d01370b2c6ac2e6b885f3be781a45b6ea18df3bcc0d. 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/QZES92216581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54511f146dee48cefeb7d3686ddef4832a47690b7db09f8c22b991bd9ef1f22a. 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/QZNWS2250947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb970f3c26130a94c19618f91fb763755700e25cf2d3cd555dee38cddc8a44efb. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZNWU2219577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8d68cb4e87517dd8d4c45bd170fcb7df9729e908ea4c9ada5451b939b93688. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZRP52272003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9733094840eb49fbeb212c9c3bcd25c11419156440a9615a4e34fbdebfe42dcd. 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/QZK6F2234844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11e6914da25426b13c89a7e4610684bc70f02ddabbe5b1f90d074342e724d28. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QZRP52272004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f00e2b607a759038b149e0569ab762cf3794515c737a5ad6cf80732dee39c69. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/GBYEJ2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02fd4e042564b4d145ea28852d32caa8d54e24a9b750db73c9acc96c64da805. 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/GBYEJ2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02fd4e042564b4d145ea28852d32caa8d54e24a9b750db73c9acc96c64da805. 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/GBYEJ2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b243e5793f1f40adfa3c44ece2eec868f28fecffc1bed1021e07448f53f092. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:21:52Z), 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/GBYEJ2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a0c6420016281f6a4bf59abce1c5a369cfd6850ebb0297495e43abd7991577. 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/GBYEJ2400019.