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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a70199ebc6e6f99213b423307b00c26e916cdd36628ade79c5aeb8ff479f9a7. 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/0a45d6a4-c3ca-4e9c-a020-0b36f15a7543.json and https://artists.proofprofile.net/proofs/artist/0a45d6a4-c3ca-4e9c-a020-0b36f15a7543.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mix Mañaneras: Hechicero / La Ladrona / Dos Más y Me Voy
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9c6db14bba660c0a3494a1670c3cd42233cfd00a0cd7191492846ee84bac21. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZGLS2096039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a45ebbfaea30d167a046f7b6162d780a38c306fb1e290c769cfd3e098c38021. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QZGLS2096041.
Mix Tu Juguete: Prohibido Amor / Tu Juguete
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca68d483d14df6097ad15cf3a71c51b620e98abf1b8618f4769d0595b70d08b. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZGLS2096042.
Mix Campesinas: Quiero Tu Corazón / Qué Tienen Sus Ojos / Agua Cristalina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ac27d2955223394cecc1d07856f9fa099272b60fcf1785eaed23c2dd883769. Chain 2 (Bitcoin): anchored in block 957632 (2026-07-12T00:10:15Z), 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/QZGLS2096045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe583088ba21fb59f6b40a2bcec008c3c2fab9f643f4978ebe3363c321ef383c8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZGLS2096046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2475f918f9589bbeb7a047b80461878f3d94d8865727170813d62280e2996e96. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/QZHZ32017885.
Mix Chachachay: La Botella de Aguardiente / Huayno Chachachay
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17a1a5a08e2e30167ad41ddee58f0af15f83e8e22fef7be17f25a2fbf140ca6. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZHZ42037755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8687ec20fc963fb3092213e357ff2905693a201f80a4c1c85e9896c0c7eb2931. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T15:41:47Z), 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/QZNJX2043335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b10bb3ab55aca11863b00babafd0cc45f34c5a0bcd17b022451a6a6bbe4aa7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHZ32160839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2353e9fe3271d44abdae9bdc24159e2ca428736674dfe68054e8c9433c6fbc91. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZHZ52247801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bd33db92e2391ad83f3fd13b2e41580273d86964273c39693ef354d5e855c6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHZ52247802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c639afd05843bb72dc6776bcacd7a3a20355d84dbdb5c60266758d749189910. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZHZ52247804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b60d2ff71ade0c6217a585c1b36aad6a6d8e7a7c28083e57a5f1babe5e9d265. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZW9K2271006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3348502468796503146c48ad83327c2ba89cc0c945728aa5f32f6285f999e43. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QZW9K2271008.
Celosa Amantes, Traigan Mas Cerveza, Celosa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c179ab0eae7bf0d86d8443f6e712006d6b168ba7663bc1ee3064608e85a5a37. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QZNJX2315310.
Feliz Aniversario Parte 1 (Si Me Llego A Morir/ Mi Guitarra/Campesinas/Miraditas)
Feliz 11 Aniversário Parte III (Cajamarquino/Licor Amargo/Una Cerveza/ He Decidido Olvidarte)
Feliz 11 Aniversario Parte II (Taxista De Amor/Hoy Ries De Mi/Enamorada - Sirenita/Mix Mañaneras)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd078222320cfbfea05aa2e39ab2f707194462b3157eb7d8e655e07dfb2152c. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZTVM2418267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9547e60200b331e401590e6d3ec87cf18f315a65016fcb98bd6a81c9149115f8. 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/US7VG2580534.
Mix Jalqueñita (Tu Borracho Yo Borracha/Jalqueñita Decepcionada/Hija de Cunas Pobres/El Pacae)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd718dc8f9abc05319d082805e6217e764e11f832fddfaf9e301434ec211eca8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZNJW2553619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b40eeb8e193ef74229160477cd1b24a61fef92b182ab2e801dff4dc755f77a. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZNJW2564795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab5989503dcc4ae6c8fde74c53e4bd541e9fda338cb0902945ef3726fb11b24. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNJW2564479.
Mix Chigripanos (Mi Amorcito/Gatito De Hambre/Lorito De Pluma Verde)