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 0x774c8d55e6e9f1348da7b41f7c360ee6b8cd40dd1c12f42df597f54544e3694b. 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/674d6186-9a79-4292-afe8-93e459a2feb3.json and https://artists.proofprofile.net/proofs/artist/674d6186-9a79-4292-afe8-93e459a2feb3.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 0x9893463802905e0382383e9de9a202040babbd61e21a7cf950c0d80a04e6fb3c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZHZ42203040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6adf3bced315aa2bd429619889ab57d3855f3a05b0af2785df4556f4029682. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZHZ42203044.
Louvores de Sax e Trombone - Paz Seja em Voz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b2640cf56f26b05bbd89a84d65fafab894c91454cbdf30c4e097dd8b4753cd. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:36:41Z), 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/QZW9N2204755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99339d8435f4eb639e500501ddb3760d25f590f3432214f80285b02ad68f7d33. 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/QZW9N2204757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70e3a32d5bd9135c93f684879b0af55d2e39e46260c5d7d60a5e9fc5023cf99. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZW9N2204758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073abfb162c95842d29f515cd0ff1c27a169a7cad43995dd557a53dd8115e0bc. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/QZW9N2204761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefe9ea894fbe4bf7bfb8dc3f918da5306f753c103ece1d5f250dfd86c54ac23. 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/QZW9N2204762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282451e816dfa8f3b9a0d9f93e41130a79fca26da930ae03add6b852bf75965d. 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/QZW9N2219777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766fa89a5c4a4c1debca850d0b4d048381710f224fc86822df3ab06970435709. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZW9N2219778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6679e70612df8840f886def10bee91d17bf2d1f3ac323b82c887a88993efaaf. 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/QZW9N2219779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39322622af3f501e320008cee61cbac06874c8b577bfe3e7bf2ef24909dae06. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:50:05Z), 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/QZW9N2219781.
Tocata Em Campo Limpo - Se Fores Tentado
Luminosa É a Senda - Tocata Ccb em Piracicaba
Tocata em Freguesia do Ó - A Família de Jesus
Há um Lindo País - Tocata em Pirituba, Vol. 2
Sinto a Voz Divina - Louvores de Sax, Vol. 3
Há uma Pátria Perfeita - Tocata CCB em Enxovia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd843037d4e4d3fdee9cb151f0785b19144d7b795fb32458aa1c100a42f5819f3. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:29:30Z), 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/US7VG2301945.
Nós te Louvamos - Louvores de Sax, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4020d938e0c4e3ac67ea383946edee38dc9dd2d53db62613138b110d5a95c25a. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:03:53Z), 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/QZ5AB2333666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a5f98128c35ed14286663f5a892b8b8e66a89b6cabbeb66dd7c3ae3e8ae962. 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/QZ5AB2333667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f207c7aadfc0dfa931b7e2196090aeaecdf31ceec8344653cde45e3939648f0. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZ5AB2333668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896210670577a0a2b92008b3dc63719a8da89a00169c101fb8e8b00ea2423f3b. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZ5AB2333669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420a853d53c58f9582ec2fc690bcf0ac3206db9b84e10a56d59dc740e2997a73. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/QZ5AB2333670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb53040f508748c9f48fe270178a3e32102fd31137e92d1df9341bab1be9a122. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:29:54Z), 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/QZ5AB2333671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b0f581fef2ab9678f015224c83a4bc5e9c66f3e5966e1d6e8aedc5e9319d39. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QZ5AB2333673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b88b45efe18652412e30a57c2e3b13429168998fc8cb4a885d4fba33c06aed. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZ5AB2333674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304bb8ba14c3a266dbde1bbfdb320f277033f94381f157e0cd07ebe0de57a008. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:41:22Z), 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/QZ5AB2333665.
Tocata em Piracicaba - Um Nome Precioso para Mim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2264cf6c2c48a7f51ff879aada247d6f8b38a6a7b6ab444956e09e7c8d0f3a1. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/QZGLM2398576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b721f30c75461fc267593fba8f24f2240970ccd3383b3b53ceaa55e1805848. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:54:13Z), 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/QZGLM2398577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d8c7bfb36bff40a1f0eb35ca46c52356f4b9eb65dfa6f21e0eecc9e9cb42ed. 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/QZGLM2398578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34da64bb68c0bc2019ca80d85f0a02f85e257c31902cab8de9dc2d529030001c. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:43:36Z), 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/QZGLM2398579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd804f4f801c291b93502139a30e8ca72bc62dea983d4ad08db4355bfed0b22. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZGLM2398583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa141f2ee30a66fafb4dce82a7522217851ba0fc1edb6eacbacec64966a9c748b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZGLM2398585.
Hinos de Louvores Instrumental - Sax e Trombone
Tocata em Brigadeiro Tobias - Mais Grato a Ti
Tocata em Araraquara (Acústico) [Ao Vivo]
Tocata em Piracicaba - Conforta Meu Coração