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 0xac7684de936c8cc831d77a572ab9c0bd4b392a2239a79ec455d41a1b07d84397. 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/b87c0b16-c8b3-4ade-bea2-b7bbe12d5f80.json and https://artists.proofprofile.net/proofs/artist/b87c0b16-c8b3-4ade-bea2-b7bbe12d5f80.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 0x363afbd91a146d3d1c6b3e999607701b079b66c062b0b856ec0b37ab3b708dbe. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNJV2014360.
Caldito de Gallina (En Vivo Sexto Aniversario)
Cangrejito Playero (En Vivo Sexto Aniversario)
La Gallinita / De Quen Chon / Toca el Sax (Sexto Aniversario) [En Vivo]
La Negra Esther (En Vivo Sexto Aniversario)
Mango Manila (En Vivo Sexto Aniversario)
Morena Ven a Mí (En Vivo Sexto Aniversario)
El Jalaito / Busca Tu Hueco / Pachuco Bailarín
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef552a3eac05a7e387559830adf5131057ef36e424636c2886a2d18456e18ba. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZGLM2276040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf653276f569d3ddad90f0a0d001868a1dc6c777e5eb05e671e2284da91f4c4e7. 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/QZ5AB2315158.
Yolanda/Chévere Que Chévere/Ya Viene el Lunes/Ojitos Chinos/El Domingo Se Hizo Pa Bailar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8124aa37b589a12aaa3bac0b9f6ebb0d5bbc10d96bd888e97ca31f62698cb55. 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/QZNJY2317426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf237ecfed29867be9087a447c2531aafab2a25b553783279e48949ebda039e16. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZW9K2325670.
El Tacuatzin/Que Se Estira Que Se Encoge/La Cocaleca
Popurrí Bailando y Brincando: De a Cartoncito de Cerveza/No Voy a Trabajar/El Baile del Gavilán
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704c750badc8ec7fefc1d96e7503df2605cb5da71a91d4ef2f7584cf10ffd6ba. 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/QZMZ92485586.
Popurrí Tropifiesta: La Negra Tomasa/Bomba para Afincar/La Hierba Se Movía
Popurrí Tropi Choco Che: No Le Hace Que Le Aunque/Los Nenes Con los Nenes/El Restaurantito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48f3c344d8472aa1f6469bab768e093fc0c1f75644d57ced85d546c78dbc396. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:48:01Z), 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/QZGLM2257014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf653276f569d3ddad90f0a0d001868a1dc6c777e5eb05e671e2284da91f4c4e7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZ5AB2315158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1597814b9ccf767a1db43e244d1cf705b6bf4a05a08881102f3d340c23f85434. 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/QZMZ92462689.
Popurrí Goza y Baila: Serrana Mía/Columba/La Carcacha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e382438fdac5bd266355f5e1613886627a46b8ab406f3d966210f6214b2ad8. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZNJX2428691.
Popurrí Amanecer: Magdalena Magdalena/La Negra Isabel/Bote de Cerveza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7269882faadef1e421642fcaacdbada0df4a0683e3d2ff0676e74be961aae5. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZNJY2496730.
Popurrí Gruperas del Ayer: No Me Queda Más/En Realidad/Viéndolo Bien
Popurrí Retropikal: La Canalla / La Pelusa / Lero Lero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e27ae1fa0ecc03a69282d1d03904b07fcbba2db08657bb9c9e511d2d3fdd49c. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZTPX2401869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd52c3542ae531cd267df4ab1a7f3ace5493df9df2e9296d714597f22db8cad. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:28:04Z), 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/QZTVM2418243.
Popurrí Tropimambos de Oro: Mambo No. 5 / Mambo Lupita / Mambo Ni Hablar
Popurrí Cumbiando Con Botas Y Sombrero: El Botecito / La Yaquesita / El Tao Tao
Popurrí Tropibaladas: Ni Guerra Ni Paz / La Gata Bajo la Lluvia / Lo Que Son las Cosas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e120a0187ce3f1977b592ab59d6ce0bbc409c96c73ec4bbf3a113d07a7a518. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:28:52Z), 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/US7VG2548105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8ea507c9d3049590af587e58df4c8e2040030a84940688b622bbd9aa83c9c7. 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/US7VG2548107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c875b021d2ad8202dc551cba63fc48b9cef5f154fcfe658226397afbdee46cb. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/US7VG2548109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed6ddf8e6b75a9c7307c0ea098dc975d657cdc7d9c35023c3ea0229c18f6ff0. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/US7VG2548111.
El Baile de las Estrellas Con Tropilatinos