1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x5b462644b4e152634858e7d6ddc3145e190ddb9b2ffb063db6c4de21d1c2e1e5. 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/a5972909-87c9-46d0-a37a-8a23907c5a29.json and https://artists.proofprofile.net/proofs/artist/a5972909-87c9-46d0-a37a-8a23907c5a29.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 → block OTSBitcoinBlock must exist at that height 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 0xf23b16ea70df5478e112753c2ba5087558e72bec8f2669abb74facb74e50b253. 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/MXUM70803231.
Popurrí Repasando A Fito - En Vivo Desde Monterrey, Nuevo León / 1998
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1982a7fea78baf67fac80aac1d4fe79eb59b7cc3bf638bdbc86eebe6387091. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:38:04Z), 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/MXUM70803050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c759f5b269889ee06748e7aae306d70a7ba21e670ad14f8acd5653c5dff4480. 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/MXUM71001344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4a12599d8d09b102075172fba80e85bde86e137b187fa85602a6d22b0c7ba2. 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/MXUM71001351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c8b4c91938fc657be5f48a490b8c7df53d2fbd3984597a88fe8b10a19445ee. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:21:49Z), 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/MXUM71002494.
Me Ando Me Ando / La Vida Chola / La Alberca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186e6d41a741da6ee22b9d649d16d545c8c20791d71a60d35e1f443eea1729e9. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:41:19Z), 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/MXUM71002992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc2b9bfa3bb08080d086b16f36efb77f0fe7e83d61c1951f70aebcc5a2e5c02. 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/USJ931170216.
Popurrí Cumbiatón: La Popola / La Gasolina / Oye Mi Canto - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2cc0ee9d4f6b74c0e0404743a62035f3a606582e2fe49229b01b6758d26a65. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USJ3V1269060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9d28ccdd8ba160066a12567ffcc4a89c3e1e2eef7782d65f87cf6eba8378c1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USJ3V1269057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112c50cd2c6f70f1ab8ff5972c2153f7eb5899afee862148f38f017a91c821fd. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/QM6MZ2157318.
Popurrí de Aniceto: La Cumbia Rebaja/El Machito
Popurri de Fito: La Gallina / La Güera Salome / Agüita De Melón / Columba / Juana La Cubana - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f17b8eaf3e6dfbfb5ad77bfb0d5dfa4f7cc25eb83b7b820c3ca2325d6535f5. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/QMFME2333372.
Popurri Las Chihuahuas: Cumbia Del Sol / Baila Esta Cumbia / La Polka Cumbia - En Vivo
Popurri de Fito: La Gallinita/La Guera Salome/Agüita de Melon/Columba/Juana La Cubana - En Vivo
Popurri de Mike: Tiburon A La Vista/La Rajita De Canela/La Cosecha De Mujeres/039/Grande De Caderas/La Banda Borracha/Soy Mexicano - En Vivo
Popurri Carbonero: Martha La Reina / Leña Para El Carbon - En Vivo