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 0xfb6c9046ae98294d57a7955294c42c9318141cd6a01ec20e18607d882abc1ddd. 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/3396b7d0-b72b-4c81-ba45-cb1906d90350.json and https://artists.proofprofile.net/proofs/artist/3396b7d0-b72b-4c81-ba45-cb1906d90350.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 0x3dbd49179636a3322e9ef0e952b8ef2fc98b1665219c4426592ec3324b47b45e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:07:00Z), 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/ES71G2407226.
CAPULI ÑAMUI CUZQUEÑITA / PRENDA QUERIDA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b71889ffbfb8a29ce13f2caec7b7730a12994e59bb24cd4e9cb3879f5bb1ba. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/ES71G2407228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3f5d0397ca4531f950cc82a552f25a49b765f5bb17fdad13718ca17766044b. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ES71G2236279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66b3d542702b7d587558a9a29309a5bd45f9719d9824783348dbaa7415983e2. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:57:54Z), 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/ES71G2236280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42e9665f7adf673a4de17737d68450f6ae707ef68f9493871854f15f4a672ad. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/ES71G2236281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09ce0802c974ff5b6a9a565f62896d798b956cfe05f7774e03717747a426e81. 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/ES71G2236283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a90ed0f83fc143e88b157c1fd295843137880f4fc1fa04761b4a1fbb1c0b29. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QM4TW2444742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f2f11940b84cac7e816e583806f02331be6f7600b467def364763577fae097. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T07:58:50Z), 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/QM4TW2444745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf1e1987673d5c4b12a5ae626abce51cc0ebf148a08ea795b386b72d72cd506. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM4TW2444748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ab29905f6cb6ffccb3bfcb745f6d41ed86c8f3e22cae8ed196ed49631a3223. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QM4TW2444753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae62b5d817f7716b5742e943254c42ec838f34a984ba2ad3090dc730780a8fd. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/ES71G1814899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da369aba54b63dd4cde0753100da3caaeaaf4c94d892be8204744196ae4514c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/ES71G1814900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8b7bd4ee0471dc681b21e41796692d31e70c7d1b72b5bdc6bf2b0c1f1adf1d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:43:57Z), 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/ES71G1814901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6b09905c9d22208567792782ab73749102f4b7d389f88f6513391a7e69f0ea. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:38:35Z), 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/ES71G1814902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7883e519fb156731d4e94145f0f78d2953fa2617735980b6c82f2bdd740bf5. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/ES71G1814905.
Ojos Hechiceros / Linda Andahuaylina / Profesorita
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddded4d779bb8ee7e4d2aa841b2b3b7be925d6bba492d7679cd1f50bf330094. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ES71G1814906.
Cerrito de Huacsapata / los Borrachos / Poco a Poco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3736e044279e6cdbdc3d6767d0d3d9918719d6b0574ddd5dd415125a8cf2e2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ES71G1814907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ef6b9417a0573605d3e42505a42919405aaf1b9c9e59c9aa56c9fe5f34d1ff. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/ES71G1814910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab68c967dc6048a3644e28077f9a69b92157fba28a781a28345f8095b99a21ef. 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/ES71G1814903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3736e044279e6cdbdc3d6767d0d3d9918719d6b0574ddd5dd415125a8cf2e2. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ES71G1814907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b84c3bc2abf81d0a6af98fd786c6aa6fe2738fe6704083ccdc245409bb6ca2. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:29:16Z), 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/ES71G1814908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc689376a39a639da9c4729a0a25228de8730b21bd7210b48dfcdb19a4b6a11e7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZYFZ2478023.