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 0x81e0075faa6bad4cb09b9165b734057a0e4c155026b3675719b70a01ef9bf895. 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/3b0eb911-6548-49f0-b41f-bd513dc08f12.json and https://artists.proofprofile.net/proofs/artist/3b0eb911-6548-49f0-b41f-bd513dc08f12.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 → 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 0xa54c5b3e4992c503eeddf2c3c8cd22f4622bc9f47ab03cda5c288ff50971d737. 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/BRAPI0900774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e20e45877b2836c32fbb3bc01c1008c5c46ecaaa4ccd4c12842f174d3c91d59. 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/BRAPI1100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579aafa6a380b39358d01b5e31fa8bed8b7b4832f2fac8e8c45c45fbbffe5809. 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/BRAPI1100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79bf011871ffc75e17ea706d7f5a0bde34b29c41050ee479c56ed613eeb22b7b. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/BRAPI1400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f009bac885d35774994dc7e165c23c19a98a57a082756320bbb32bcd653ef4. 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/BR06U1500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0352ce0217d8c94230abaf8c37979d99738471a24860e5dcdbebd34e9db90053. 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/BR06U1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1669f8ef2c9a9b3f39556bae9e68bed91b989358c8f402de4d2fbd8adcc76c45. 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/BR06U1800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0dcd9f1250a8a10be60660ef1ef94ae088bbdbead620c5f457eab2674c30526. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/BR06U1800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe603e89da11085eaf430f892cf22936b93be094a890f85bf25b2a172019bc010. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/BR06U1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c0b62cbe135b5018fafe3c771ee0a16a425f294bc74f07008d05474d51ba27. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:28:14Z), 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/BR06U1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb251a760a264fcef4682c8b80407ba22a3fdeb8a33ddbd576d53d143cb8f95ee. 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/BR06U2000003.
Livre Acesso - Em São Paulo (Versão Estendida - Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459ee466d309c0fc45587f1f46d2cbcd09e18ecf06f3fb594c25189f27699674. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BRAPI1100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec42c0ef0df0cdbfae740c7f67b08eb3708e93d5ea389e56b8cb9d5f462ce613. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKMSD2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8769af55164efd3d31ed1641c7847430f5a951a703400dcf648a5db7a1942c93. 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/BKMSD2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf953f86512f613d3d96a14b7835bd0511a967a87b9f32ce3d3acd122ff6895f2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BKMSD2300001.