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 0x5962a2b6137a1a6c88548618528dbaa45599d846e971d362771e75470bdc53a6. 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/e46050fd-2172-4fab-8137-d3b770543c33.json and https://artists.proofprofile.net/proofs/artist/e46050fd-2172-4fab-8137-d3b770543c33.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 0xd4fc06fcc529d926b581b3df76a5ed5a82c7a45e90117b3d3a9a6662ae0033c6. 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/TCADB1701382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1473392ad7ebf882453076f019e6dac093327fda93dcdd0eec447fbd7e879a. 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/TCADB1701384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47adb3670bf494c512446db87edc90d69dc3754079c4a1c047f4538422fbcfe. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/TCADB1701390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd54a000d27ac37fcc111ca8522d3f6d36f8154a9507682998007fd27aa4f99. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/TCADC1776513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a5a3a5997aa80e6472f6020c65b1495367a543eb262700a402d8795a2b0e4d. 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/TCADH1772223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb69731a419ea326c7c44c0bfaf9ad26751549756f20768660c074bb8516ddb. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/TCADH1772226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aec67f2796450207f5a65e9f543d05838b1a23ff36ddad61eab5860a2311aa5. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCADH1772232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4a6fafbb98d06abde766ee1aa2807a47a0b04fff3f7972e777f688869eee3b. 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/TCADQ1861055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb344f80ed9a76426d14586d88120a1ca94fe81c684729520688352ffd9a239b5. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/TCADW1898283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d76fc742c7d462a5fab50cad7cf8f41eb47f59e266ef1f3f3d3398903cb6c0. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/TCADX1817496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51544d6d2528b903a419ad65f70783fd164b61d94546633f90764ad929ee9cd6. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAER2003868.
Session 3 Yo no se Mañana + Bailando (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb2c21efe097b907318aee26456f0ffd468ea4b1baed458171b01ea983af4eb. 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/TCAFY2122731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576a5b56e9451cba54e7c6f7fe2b20fa85e980680a9af0d37ebcb0eb96d10e91. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TCAFY2122754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e69c5d59209a6bf633cc1df3a861d40f2786e71f17ce31f72591b0c7aa2824f. 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/TCAGD2204407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f6a126a350fa1661d6d9d3f8090db25520d200472f6de4fe85ae3fb8ea38b4. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/TCAGF2267542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90d18a939354601cc0594d95882ae9fd8141fd5bd177153f096a62ac6d48288. 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/TCAGU2330248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda57836bc58a615d4ec43cdd0be675a2d972c5adfe146f680929a1e56d6c7154. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCAGU2363487.
Con La Misma Moneda / Corazón Mentiroso (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536fb3a6cb322c7964d27e39b851a541286a85ee23a52b001644607ad490664b. 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/TCAGU2363496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fb56f0101c2b5ef62b89b528192e6d9a6e45ca8bb93a4541259d6da9e6958c. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/TCAGU2363548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5832c808fef6d0ba79b7a36825076995cfde96d439ac6183fc0f5164af26b29b. 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/TCAGU2363583.
Perdonarte ¿Para Qué? Si Me Amaste Tanto
Inocente / Mil Preguntas / El Amor De Mi Vida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d6a1bbd0ed8c85d473db7cbfaab41bae51272c843b8b88fbb305368355f77e. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/TCAIW2483385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e16b98188b008008561d935707ef2bb278c6abf90c5bba37357db9c3b2367aa. 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/TCAIW2483394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816b2c9b1d1d6453838cb1f30daf8c432e7676175f1fbd1624b50a0629bff14c. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/TCAIW2483412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c1ebadc704e117c507a43d08a920a3a3691b87f02b9c5bbd6a0a78d7d402b0. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/TCAIW2483422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19c158ddcabb6b42ed4b0dbf17a5fdd8e5f801819f779f53e3a49a5f4088a7d. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/TCAIW2483425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff64c340b202756756cbee4b573ffda1d1541607cfc8d8a0255635a8516e010. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/TCAIW2483438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308ab0bd5bb65c772369ed3211634180b1bb6561388f8cbc811e44457a0189f1. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/TCAIW2483447.