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 0xdb5f06b0fe098b6500662bb0683bbc2dfc4fdf5692730936bbb0167340be4e01. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72a4b86c-22ad-4af0-89c1-241d9cef1cc5.json and https://artists.proofprofile.net/proofs/artist/72a4b86c-22ad-4af0-89c1-241d9cef1cc5.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 0x8939235a7cd58cb8e5855309c8f81d22adf9656ca01c7597615c3200b37c16da. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRG981800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c4123f08b450ba736a5e1c9a30eeb89f265489648a317e2314e6713ab8a1f6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRG981800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073ff762ff6eaa2be5e9f1309603ccdafb02a068a2dfad37462650e31838b972. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BRG981800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f82664f53addb962b80acd37afbe4c38d2cf6fedf0d8e2738bf6f704c35f68. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRG981900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b55404f40a5829bec0d832404f263b86ceddea2d005ee3e2a00e23d0838b8a. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BC0C52100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396a06b7c9655b945d3dd0b0627c2bbebf7878099340f87366a695a1c140fa14. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BC0C52200006.
Nossa Voz (A Mão Que Bate o Tambor É Feminina)
Suite I: Fear, Resilience, Hope (Medo, Resiliência e Esperança)
Suite Ii: Peace Not War (Acordos de Paz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ea343bc81a28d1ff53ee8a93935865e17aea38368eb79c837a63dd6267daca. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZNJY2163869.
A Maneira Correta de Chegar e Partir No. 10
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6543821a168a1ca1f63b9119847b6fd1e57cb05599907b83dadd91e31b5f09fc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BXGZQ1600010.
A Maneira Correta de Chegar e Partir No. 1