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 0xe2f6633b5a4038308cc8c2840ee3b7feba5455bc73b17475ffa3937c3199d406. 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/ca9a7095-d8a3-40fc-98cd-b09fa2b8fffc.json and https://artists.proofprofile.net/proofs/artist/ca9a7095-d8a3-40fc-98cd-b09fa2b8fffc.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 0x7077c2e76751951b274d00fa48cf65753bf16241878a8cb674c1f263b9d96689. 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/MXF011300434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3b0be608afdba2f03b1b78e47aecf9c9648438285c63518ecfe040f8a49e62. 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/MXF011300435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e0c3df9b53958a5214ff33d25ab88b0d9ebc47406fedc41b1e1416317e463f. 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/MXF011300436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4f46697d992f9f1f17c1a95dc39bec344ca05456ee526fb05657095b421c70. 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/MXF011300438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bde1f5df98964590ed9146f0d933ff2b16f9303e9d3464b5646ea1d2405cba. 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/MXF011300439.
Medley - Los Tres Ases - Invitados - Toño Muñiz, Jaime Lomelí
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b643c2732ac05e25cbb7d2e1ef1007c85ab9fab2a8924c62a364e275e467a43. 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/MXF011300440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858abb31c05e8fbfcd6ef471959db83f26121c096f332ee32b0e9081543ce769. 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/MXF011300441.
Medley - Armando Manzanero (with Jaime Lomelí)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355671220d7b84857029ead2bc1d467fe52655ec4f34e03d2710584f1cac79ba. 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/MXF011300442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e715d3de60d272041155cb36f2b8406b681d1da7945f828a4725d77b7d72a4. 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/MXF011300443.
Coincidir / Celoso (with Jorge Muñiz) - A Dueto Con Jorge Muñiz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f7072df65813ab36ee31f1a038a0e4f184dff958d6d52f5996fb5c16b50fb6. 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/MXF011300444.
Compréndeme / En Mi Viejo San Juan (with Jorge Muñiz) - A Dueto Con Jorge Muñiz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff22a8e61eb679932d711ea456f04c2aec521416650e0546a322636c5a6fec4. 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/MXF011300445.
Solito Con las Estrellas / Yolanda (with Jorge Muñiz) - A Dueto Con Jorge Muñiz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297237e1fe85464b61dc23df73f1fa61549469216a0d02b64df225f978bd6d49. 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/MXF011300446.
De Que Callada Manera (with Estela Lomeli) - A Dueto Con Estela Lomeli
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca48d33bf4738d516a42183cab1d01dd9520726f5a41895576a9b8e0ec514e1e. 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/MXF011300447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f551862ff5bb3c7a7638d35d8cab71cdd61750a86fe67be0ab1a7672074f551. 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/MXF011300448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c2b1d107f50c8f88b3e6c94eae7f366c5aaa6527177aa09c210aff015c91cb. 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/MXF011300449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1359bb8a4c10be5c68143936f76a8bf3066a1d0c24ddb39381f33e0c367444bd. 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/MXF011300450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5ff3f31c34dabbaceeb6f476c8165db9b27e9844f5676d77f2192ec3125c24. 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/MXF011300451.
Volverte a Ver (with Axel Muñiz) - A Dueto Con Axel Muñiz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0591f3aae020418641c7c0f92b1359ddaeb15e6fa5a3d278f669005594d15144. 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/MXF011300452.
Tiempo (with Jorge Muñiz) - A Dueto Con Jorge Muñiz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c7c942ef8ea06dec0ced1e16c7f4eedb5931fa23ff254d25c4dead840bd3a4. 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/MXF011300453.
Por Amor - Invitados - Toño Muñiz, Jorge Muñiz, Axel Muñiz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf43596cdf56eebb29eabcd854728c6d555875026198bd3f605ff84817eefa90. 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/MXF011300454.