1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x0b73a99bec12d95b82c9f3a87561cf2fbccfd41dd3206cd81d205e8c44f386cc. 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/f716fc4f-666c-4a40-9ac9-7cbe883beb70.json and https://artists.proofprofile.net/proofs/artist/f716fc4f-666c-4a40-9ac9-7cbe883beb70.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Alex Cohen - Ao Vivo (Ao Vivo No Rio De Janeiro / 2003)
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 → block OTSBitcoinBlock must exist at that height 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 0x101202170ccf7e462bc59dc7b0f86b0cd6d13ae148ab3b6857ec6d28b147965a. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:51:03Z), 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/BRVSN1300001.
Seu Melhor Amigo / Espelhos D'agua - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514c2f6f95cc83ee07b84f593178d97b9a7b48101d0fd227afd1c5b7f9829dad. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BRVSN1300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fbac5a303595c84f864fe94dcf56dc39eba6c3d2e102b4751b524340058589. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BRVSN1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb42573666d3312a8a0fabd6b084445cde540a75e2113ae26f72e131dfb53e0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BRVSN1300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde9d1544a479a3f1d1df862bf21d73f6b262ae071bd0e43b410202ff831229b. 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/BRVSN1300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363c4fabf1eba842da7e5e3b53f716c909f893dfce319f7136e35a169c0409bc. 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/BRVSN1300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d8f245f95f20503086e61288e9912c55b01e9bdf9a2c1ecb83a6ff338c8ac6. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BRTMJ1700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2009f48ae056b77b471ce5831e3dbb9e2fb9e7c325047f51ddb81c45d92d2917. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:22:01Z), 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/BRTMJ2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1194535970f5ad2d54746d2da282caf5a8b7f85f1ba1a291d9edc85ec897c94a. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BRTMJ2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ca00ac0da1b27367b1ec52c8e6e31075fc94f749fc3947dd544a411ffe4d07. 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/BRTMJ2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d67f498b492fa8465c51db7be296a52dc07f588addf062d31b171b9922be2a0. 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/BRTMJ2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3d4ab9e56e4289b489c5b94bf00a416305ce468be1bb2afb2d6c8f649e58c0. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/BRTMJ2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d9f10d9a63da7225dc544443037f48232990e7dc013da10a839e4ca9a2f93c. 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/BRTMJ2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5993cc90588480a80daeb95e7107e2d24ee8a1a3e28632903ab3b2c09bc6c08. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BRTMJ2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c17d4ba1cfdc58e7ac08b3d89703aca4e269e013b53fe4175a367d5c487a74. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/BRTMJ2400034.