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 0x26c1dbffb255da7b5b39ee7527b2a83a0226294899caf577b6c94fffa7ddb512. 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/d177ae2b-5c18-4dff-8948-3bd50737adca.json and https://artists.proofprofile.net/proofs/artist/d177ae2b-5c18-4dff-8948-3bd50737adca.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 0x779b67a91ae196f67d55ae8ea0cb205d1e125177e6f19595b3c43232149b1666. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZ5FN2358503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa1633835783ea2de0fe2ec8ef528e8e478c7e784c9ac980922113712d8a0fb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZ5FN2316801.
Remember (Vakabular Remix / Van Dope Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc794ace48567802a6002037b0239fc48ebf615469f8cf893ba3de19dd68c03d7. 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/US83Z2459829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba6329a81692674377f9af269af250bb71d61eaf65fa060df086c9232d420ad. 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/US83Z2354425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5fbe81f05697d557b001ace8e22e1412e6130814762ed6f8567e43553433a6. 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/US83Z2458996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93bc2e9f3091ba44bdd4eca521d4aa4e1b4e3f4cb450268f9738a0ec1ff75bb. 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/US83Z2458997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb9ac78a19a90e341236590bb58c88c232a6fd7a235147488d08ada734013e6. 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/US83Z2352115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f6081313f93fc443ae3bbbeecb464fa36d93bcabf5d33b40f6d0edf11189a6. 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/US83Z2350159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45171451c0104964ba01024077e13f29049cd2b4dc9d9f086b25afd471d23bfc. 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/TCAHN2373567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f2da72b6f653cc2fceb0c62713ed420a52ed93cbba4b1258834d5361ea82eb. 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/QZWDD2357534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840525a8197d979184529bd219e6ad230717ebfafbf307f0d4e83b4af977b2ba. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEY472374857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f336451699e0ee3a925fcf510b61d8b7ab643d73a4c9b3b71870552327b7331. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEY472374858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa93435eb1b49fb6520af617f276a67aa0e2e70eabff5f9a66b6c34a93af14a. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZTRX2395890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef7eb10573fa413ee70216a164a5bc1b7f7cbe4c67ea605b8ba0bde643790e3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZTRX2339263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3176f8733f18846ee872569f05726cbb0186dec9869014b5493298687ec5e9f0. 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/QZTRX2339277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47ae9ed7047d3fdbe3de847d9733d86a126b499f5b2ce3df2054c2c82f8dce0. 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/GBWUL2383221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f618c085da337536233944d7a09bf1078c54f90411384d2bc48c5d872571c7b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBWUL2317718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60c2c7e79901446ef6dfbc3a4d1e5ecefbf0cbddcae144d3f8142faa77a5b2f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:25:24Z), 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/GBWUL2317715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f77020e0518fec0baadf1f93bdedf44a243afdb2263a13e3387d63071b9cf91. 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/DEQ692300071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b253efe5564205e2c83fb4d77b6b8c62571ee3a7c1573ad5e47fd2d5b512b2. 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/USLZJ2326738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab1b716bef9828df581b188bc7889027ea6a7afbf6c1e2cdde401f9c430191e. 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/USLZJ2326737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e56ddf2fe8d01f82b226200295dfd2715fdc9dc823ce731ef9cb1bd95fdee95. 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/QZ5FN2389586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa1633835783ea2de0fe2ec8ef528e8e478c7e784c9ac980922113712d8a0fb. 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/QZ5FN2316801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5782e5ac0b883fc75fe8d5d5789d426dce40887ab6a15264f283d37406902a0b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZWDE2215572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d040d3b95de3270ff2b965562ac89c9cae32b4053bf9833f8bef443c89b9a13. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US83Z2233471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5988132bdd31a6d569a912c637da5716562766fa67e4de1bcfe4af82b4a1599. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US83Z2233472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe857b88c955d71f79a7686ee63f126a24d85fc6545e9efd728ce16b279315a43. 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/US83Z2233473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577a1b33ba807f7e7e3dc1c38a4cd0466f42f6e98dc4b7efd9661cfdf7b70929. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZTV32233104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec0d86283d56cfdf463162bfd3d68a2cc25cab37d642d310b073219822c0555. 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/QZTV32233144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8d85c669dcea7234aaebcca2ebbd91bac8ada5ab6c00e919fae8100e3d24b8. 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/QZTRX2273502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b2d51b47df5ba5c52058b75b5c2d8d75940d704bda1a74fd3832afd14b07e8. 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/QZTRX2273524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea119163bff19e58bbe0be104ef25be8abb6a056a2162a520bb2b8340835cee. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBRKQ2270703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96442c21b42b8acfcf56281141999b053bbbfd9d3e75fa3933c6789d43636530. 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/GBRKQ2209022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd2b0c5624ab4f7b7b5d922a9dc5b74efdcb8c258568dd96d869548c9aa1c2d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEY472274548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a986283222accd5a39553b262482c44ab5ffa14b70bdb96fbd7f40ce401f25. 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/DEY472274550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b9618fe44967a570b923be514684d88b1b5934a97c445c1bac25755970bfb1. 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/US83Z2471897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c313b929c171fade01ea49e427975ef6060f3587901b72b2bcefbab933f2c4a. 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/GBRKQ2336747.