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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c63c5b168ee068a280c5ef8a7e2df98f23dc407f1386d6706699ba54fdd4fdb. 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/11bd070b-44a0-4904-a2b9-de755036715c.json and https://artists.proofprofile.net/proofs/artist/11bd070b-44a0-4904-a2b9-de755036715c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Corações Psicodélicos (feat. Os Ronaldos)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5a0f267ffb5dde488a9e1b94d4c4c32356ad5098ced2ab509a8b3c2a622dd9. 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/BRBMG8400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c0bd94e28a165b57b91b9dd57f5920234c241e28463359e284d4882e61a767. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRBMG8400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5a0f267ffb5dde488a9e1b94d4c4c32356ad5098ced2ab509a8b3c2a622dd9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRBMG8400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467d73636cbd6cc660d0d918dd658448addbf766989626c4d316c5c055e8405f. 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/BRBMG8400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9168d741acaf706b83b9d345d2925c2ddae1b903b9bf177100a0bb32efdd5ba6. 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/BRBMG8400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1575c5dff2f5dffa43ad573c73c52d2f1cd47542d5434bf732160196bd833e88. 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/BRBMG8400046.
Os Tipos Que Eu Não Fui (feat. Os Ronaldos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54e38b031afacf1b3e10926fdc6b84c0b60297e3525ceb1d48a5ed23e97996f. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/BRBMG8400045.
Ronaldo Foi Pra Guerra (feat. Os Ronaldos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b0ac3c5d2eec00de9fe9319c973b40fa4abc5a0b0087b5dcae118e1c9b2b0f. 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/BRBMG8400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c0bd94e28a165b57b91b9dd57f5920234c241e28463359e284d4882e61a767. 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/BRBMG8400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5a0f267ffb5dde488a9e1b94d4c4c32356ad5098ced2ab509a8b3c2a622dd9. 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/BRBMG8400024.