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 0xcc3f554cc001d60c10bb6d042e81faf615d606daf8b47de8dd184e1ee7b8c88c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d26bf990-34ec-4338-b3c6-b1cc314be829.json and https://artists.proofprofile.net/proofs/artist/d26bf990-34ec-4338-b3c6-b1cc314be829.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 0x3850d4ffff2d36d19f60ee55fae4c8c8f6ed298c704f56bffdb6f43b4ec1715b. 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/BKLFO2400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53a682a3a95b4094cea11599da51adca12703366a14f97a192d167187ee576f. 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/BKLFO2400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4047afb13583fb9b942585a6b5a12bc3dd0f59c56661ddbabf10ff2aebb6c6fe. 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/BKLFO2400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1adf98d97c42c567841b94fdc55ad21830a3ad6f65bb81993e441bee3d5224d. 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/BKTNP2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf621bd8a5baba32cd3b51e6e14abc918e1884ec09ad50c96e9c3bb18655d620. 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/BXOP52300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4666df2e2aab201582ebade8a9b34d1cfff9a86bdb54a3fa5f04a41720a510b. 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/BXOP52200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217073b6d39edd9b1334a2bd66150ded4d4363c4d22053aee651da03cc95a502. 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/BXOP52200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ad5a19c1b3118dd397b34a6ab40486455aaf3c2c36508d8fac25c3853fd6ae. 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/US3DF2534235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bad02fd99b886cb8002f46ba64a41ef1042ba4e89dc04ee07c83e359fc6a75. 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/BXOP52400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa943dc50ca5c43469815f4d3aa01b97e11262c89c9a50744c3c7c22626fef546. 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/BXOP52400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e1bd3ece0f3bf129d582bc14c4f5d80bfd772f73c2691e833adad9ba4af784. 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/BKLFO2300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a73ba6ed91fac1def884d7ced68b2e8ea9cda561b6693a34be5b36cd64b44a. 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/BXOP52300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a448e370c894550ccbf796d366547611613fc03fd94a871e9809388604a77d. 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/BXOP52300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e4e8e735a09561a7f3dd25f497ebe916ee9520aed226cf743ab0a41d2de21b. 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/BXOP52300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135956ea5b2d91b7ad54f5a0ec8a679df1b0d89b5c412a42bffe067dfb399db0. 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/BXOP52300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f8b0263e3dcfd2eb2c3747a629fda91d907d7ac44aebe665222893e3212094. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BXOP52300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcb6da425d54cf1d3b72c23a2cd5eb31dce17e172e22d2814dc1b0e34b4909c. 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/BXOP52300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07bb64efbbc43f9bb0258bc523550accfb4166bf6307e91ddf5cf301bd86889. 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/BXOP52300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee26f4e34bdd861d198b7b0733e723d57c671b04158afadd938253a71f4f057a. 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/BXOP52300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b181892945a2160cf19ed5b788b45a799f71a87e0648942c475732204150121. 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/BXOP52300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb95ccdc6e682aa01d1d2183b2e6fbe153e9a367fa03a9bb827afc4f60d37ca. 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/BKLFO2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7a70e45454c026aa73fd646541344a43dc37a33678eab7a72e1d5527049982. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-22T05:36:28Z), 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/QZSYP2276178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103b4456ac328e5cfecb4c940fb96cdc390d9c920f7fff26a1874a529d823a68. 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/BXOP52200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030d82f9181273283653cb7eb938869887940383dc1eaf5d5318f47671614409. 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/BXPC12200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0e36bd8b4b157571f0081d32193cee36f81e10ab13c6fae3224cdce6c10800. 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/BXOP52200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a763c97d6c57868c896e30b3131bc92e91ce3f6dc87457acd6dfff00f1e5f0. 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/BXOP52200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a24955fcc51a3cc87be52c3230d976dadb93c7fb2ea5bc067e3868a442a6f4. 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/BXOP52200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366fd1893dabb7d3046af37211f4b87810a748a7c0da134058f338427b81c93a. 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/BXOP52200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0803ffca2b5796caa5d3f97524346dfe9c9e4199710ef8eb0a46dc4db9c4250b. 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/BXPC12200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2182e5505e8f5620eb2a20d25f2e28816aa040bd0f5f9f3b4b66bc7e800f895. 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/BXOP52200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a763c97d6c57868c896e30b3131bc92e91ce3f6dc87457acd6dfff00f1e5f0. 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/BXOP52200009.
Chill Brazilian Storm: Bossa Nova Beats 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1adf98d97c42c567841b94fdc55ad21830a3ad6f65bb81993e441bee3d5224d. 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/BKTNP2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6de718187b9edf5fc1666add83e5eee152e2671d0b3da17daf05665b12696c3. 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/BXOP52100007.
Chill Brazilian Storm: Skate, Surf & Lofi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07bb64efbbc43f9bb0258bc523550accfb4166bf6307e91ddf5cf301bd86889. 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/BXOP52300013.