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 0x2577b3edfb561e8acaa536e6030605a77ee4415af8bd8b79a579a707567ac4ea. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f084dcdb-3bc9-40bf-8d71-0548f518860a.json and https://artists.proofprofile.net/proofs/artist/f084dcdb-3bc9-40bf-8d71-0548f518860a.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 0x2921750874638e27490af5cfb3f3b84dd694276da980b80ea45c0c256b315d47. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/MXB711800256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdcc265da8a96e0fb7fa2cc9d3c1e01932875e9e077f4d6e09feb1e24292258a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/MXB711800271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707ac9978e46e85d2d0bfc182f06101440298cd58f25df9793ef85de232d8412. 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/MXB711900094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b8cda4e4ff42147f4b3ab25cc9fca77eac824b8f40f45b1c9781aa8540f0bd. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T18:00:24Z), 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/MXH152100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2b7c1cd29b4ff0a0e8fe441d89f9c2faf375b52576f64f6cd46c150d59f083. 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/MXB712000156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201ae59563e9f2572d7f8479037d32c3360f4625f0eda4459d4969bc35695aea. 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/MXB712000186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5bb8fbf429b1c406aea261ff236a2afcd154b4a4997f8c51a3439054977510. 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/MXH152200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e88f4563d11ab0285da0c7969532c883419511876585537ee05b34036c4abdb. 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/MXH152100436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338044298bb5dd974e9ef3e147965bcee31b0c429f869dea96e152e1371cf128. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/MXH152200352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2dd9d0caf7f2831a50f1c5d74afca54b7bc1b4254c9f955edc100bcc972738. 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/MXH152300038.
Norteños D'Acero: Éxitos Pesaooogritomachín (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54c97338eec6863fc3a7dc5509fc77c515352c004afaa3a21909767c3c2bb8c. 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/MXH152400122.
Mano a Mano: Puras Del Mero Mero Del Corrido (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f4ec1db28c5fa42071c6f9462a9c8e9cd6d1011886cced9270268d10ad3c2b. 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/MXH152400194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb8c48504de00d033f1a98d0d5e65e466a0f295cb595ec4794795e4bab0ff4b. 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/MXH152400191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203fcfc16b1a04ce62fca6bf696268060e7f2083c6582f812f802becf5ee9905. 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/MXH152400406.
En Vivo desde Las Banqueteras con Los Reyes del Camino
Palomeando - Peda Destructiva - Parte 1 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf511e4aa03f914b2b5d193923e16afbe17d6d76100290f2fa804dd07f4518d56. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:44:32Z), 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/MXH152300578.
El Pájaro Macua (feat. Los Nuevos Federales)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa1a2dfdd5076431cdd1ccfdfc002db2f430b57875e81e22d1c85a9bfb21ff2. 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/MXB711800122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9bf7389fbcf9dfa931ce3e2f2dc1fea0ea3addef16d1dc6927fd4c77ab8f6c4. 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/MXB711800125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4491fd95cfc9f113cdcd454f457fdde08d8c17ecf02f414dac0509256e88c9d4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MXH152400139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc664e9a1e385b6edfdff78673e5b3d292c5f1064c222e19b8fef015ceb66060a. 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/MXH152300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08aff677c225466bd7f3e7d548d9dc3bcd9faec4695d4f8ee7ef3978cea61234. 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/MXB712000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069d810d3b0d92db74c7e3ffefa5ece646d863eda80ec5c987a493dbbecfa4d0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/MXH152300569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b464d56dea00182484de30b56b543b6be6f2a43d0a5a087bdb0a53b8cde9c88. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/MXH152300584.
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 0xbe8b84170c6565a3bf0dbcacaaf3511c922b008a1d876f19f622fc40c8fe1d7c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/MXH152400131.