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 0x920f6985d7e65658e0e99197c027f1c142beb64956e2a049992949a6ea8bf3e6. 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/9c1bbc7b-85ce-499c-807e-122e952a8874.json and https://artists.proofprofile.net/proofs/artist/9c1bbc7b-85ce-499c-807e-122e952a8874.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 0x3ea75cf61c55f9e6e29cd3a685bf26586e994a8fc92605a594c99ad60cb76a1f. 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/BRL5B1000134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b19b8dfcbf4dc1e1f3d2628330040d1be7e97ed08547f136bd83bc3a642b59d. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/BRL5B1000127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d658e26ab155f2661a85dc6d9c2aa9668dfbfac0c87d6b40911c3251bb7e7b8. 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/BRL5B1000138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecc6b2cc24d0a894bf4ccda96ea3eff5bea799e7115eb02f954af22fd6be9e3. 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/BRL5B1000131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad8f529da609e8eee8471c7c7247e6ab4b9e8c6c82f4610862b7bbb52d42787. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BRL5B1000132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cafa0a2eb2f36bef0c4a14aad39033866e2dd16421db3e327ef7a67389c58c2. 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/BRL5B1600029.
Além do Rio Azul: Ministração e Profecia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb2e43cbd244a5f6a6d9f52100ed1f1fc40c2abc307e24cda5e88f04b92c74e. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZHZ62049923.
Não Vou Dividir / Fidelidade / Campeão Vencedor / O Rei Está Voltando (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6346b4c79a684284b86fb18a98d969938e1a91bf587c3a6d9242347b60d36d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:51:15Z), 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/QZNJV2062808.
Madeiro Lavrado / Alma Cansada / Cem Ovelhas / Divino Companheiro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbe9c1ac0d8709b3545bc8ef77e9d637391522ab66874f87db8a84eeb21371a. 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/QZNJV2062812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea3e6856ab1a5213a6ec83de194574ab85951209258a073f64d9bfe76a7cbca. 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/QZNJV2062813.
Ele Vem / Além do Rio Azul / No Céu Não Entra Pecado / João Viu (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d9f9ca5479234651a55074534edbbbba6fe3075973b53d55fe7c63c381cd9a. 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/BRQEJ2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83c4c2810ba65b4aa8408d81e662f81692498091cb488db9a239139e7299a74. 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/BRQEJ2200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15ee34a1c7f14137d160dade471d843bacb9b70a2a2c797dd494109e4ec8f3d. 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/BRQEJ2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe046a6dde03190c3185061bbeeb2a32a9a79ffb4da00ba89db8f33761ccb03f4. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZTVM2340981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18cab4c380ffa393e41ef5d637cbb5853e1f9eda74621a7ab601a3acc154f5f. 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/QZNJX2403305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784d3bf30caac8bcbe22d73dd0e20ea42b73e74ef8ed992b24e1fbe0064e80b9. 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/BX7LB1800019.