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 0x9f6418995f5628755effd9a4c0627c82c7cca627c3565a921936fc81c0180e1f. 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/7ba06b1d-e5d5-40b0-a345-24b89db4b411.json and https://artists.proofprofile.net/proofs/artist/7ba06b1d-e5d5-40b0-a345-24b89db4b411.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 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 0x08a7134dbf999f7750f3f8421c93325e856ca05a3747d51fe3b0e1ad1e5edf26. 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/TCACM1696314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc382316c088e72d695381e6e7ddb25d2222165d38cdbd2f722dfb108a2ce8f89. 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/TCACM1696311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23cbed0c3ce2a60309fac38ff428e2395268e666ecd411916ae6a8d2bced8b9. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/TCACM1696313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56e27cd73ebee07a6289be36a234dc08860a2933de0c1649370d1dd0d4ee7cf. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/TCACM1696317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfedb49a25914f9fd9938e48b13ac98b12cd72741ec74f223c965cb15a330651e. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/TCACM1696318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00fe27f22518e06016349996b2cc058cc5694ae3b0227080ec5f39e71325a4e8. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/TCACM1696319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5768473e23146b62f3bda11a167c8d755510ef266d442e35a5144ff2cff492d6. 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/TCACM1696323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b6901aebd1515a546ee8064ed4084a5bf3796c24b60295eb798562c1044cb5. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/TCABL1390413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7a74bfe26e52a74ccea713d9cf1b8714706f6e63bd9006f10b9693e361733b. 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/TCABL1390417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8750897152df6736392cf8d013606cb13477d90f14f10344cc23a3d6d5eb6b. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QZ8CY1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27eb9ded78173d3124b75e6ac41c2da8329027e4b63ac8b8fd6c796c4caa63a0. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZ8CY1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984fb8ecd07833374a9a86e4fa9a6f4ea0ba69c8e2e49363aa1bccd4e8a69a39. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZ8CY1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5548b763b60fb6d821aa28c4b6716b264d7c35a7741b02a4b8a0cd501404af. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/TCADD1787298.
Ramon Arellano (El de Colores) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34800f287b93917384fd309f856cbd6224937000373588ff7bf921f6172c28ed. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QZ8CY1802003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b3a475614e30294c27e778df66accea8a0c1e9197b8a41fff1cf65be99bd94. 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/QZ8CY1802005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372b3ca3ba5f6d7faf260059d4b828493b6e7c28e506d3689260f7bdd2216bf7. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZ8CY1900062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26749759b3f03b869b7d809e1b8a5c94157103e9e5cc45d5602c543878449464. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZDQH1808970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963aa1d3990987b2810ae3fce003ecc6284324e76a88f30f921809eb20a2a735. 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/QZDQH1831649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed343db73a2ab322c7e3d8b4e89f414849bdbb111cd3519abf7fccdd910efb9a. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZDQH2253008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa63906ec3b1ab51866f32b4a6beb1e30d763cd20d973767e42d31989b41e585. 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/QZDQH2362577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d25ea8fdfd18f4e2175f8c6a2d104de351f25a782c5dfa1d0a8c65321cc7ca. 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/QZDQH2368795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cf3c2919a876ef6ae65f47a38fa4d7ec7565357cf8338c5756a119178dadd3. 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/QZDQH2372660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b6e10979edceea93b875d5f1de87233d71fe0e2baf035b20c1202f228e7ade. 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/QZDQH2376981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a190ae5a3cb5da19cee92f1176b330f48c13d48e659e8751b7f00a2709502d. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZDQH2384250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54425d1300b65155fa1ad87ac752095b81c65c1ba382b671701a854c1507626f. 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/QZDQH2391213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da72dd86fa43eb1765ec66ef353798666b70d16a7d1f5ed03336309ff629a6c. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QZDQH2411583.
Mix Alterado: Sanguinarios del M1, Carteles Unidos, Sangre En Mis Venas, Ojos Tumbados, Ondeado Y Decidido (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08288c2781bb4e06aee9089cc0c61dd061eb8529fc155062212f5ef3931e19b4. 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/QZDQH2271643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb9668c84d014b172459e0a46281e16dacf1e8357e7c5f687cc5e13a75d510a. 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/QZDQH2420009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb9668c84d014b172459e0a46281e16dacf1e8357e7c5f687cc5e13a75d510a. 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/QZDQH2420009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3c6f5ddc51418b25548805354a4e7ba8c99c48b9362e36c73b740faeb1c1f8. 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/QZDQH2422106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d6de679849b707e000e6b108ec3e607fe86da622277a15db5969ca9453172c. 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/QM6DC1538011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66666e81b9d1affb3d0dec8005d0f4643ca39f581248221f4788329567189c23. 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/QZDQH2509762.