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 0x540081af93a593204b2e078c5bae2843ec6389da0371c78f187b711d532389e4. 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/29efb9bb-d306-40c6-9e14-15bf6c7acbf6.json and https://artists.proofprofile.net/proofs/artist/29efb9bb-d306-40c6-9e14-15bf6c7acbf6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Intercessão (feat. Fernandinho, Asaph Borba, Nívea Soares, Gerson Ortega, Nelson Bomilcar, Christie Tristão) - Ao Vivo
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 0x76f653e590032bc5df9ee2a264036708e520b7a4f48210b065506da5a89f98d0. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/BRDHH0600010.
Tempo De Buscar (feat. Fernandinho, Asaph Borba, Nívea Soares, Gerson Ortega, Nelson Bomilcar, Christie Tristão) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf61c3b056c7068cfb3ef1a2379c64b0d11fab37f2c9068d8d4f0ffba8f2adb. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BRDHH0600011.
Gratidão (feat. Fernandinho, Asaph Borba, Nívea Soares, Gerson Ortega, Nelson Bomilcar, Christie Tristão) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc685fad8f20645ae1473fcc297260b6add3635ef4ceb08eaa20fe88c99f7c552. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/BRDHH0600012.
O Que Fazer (feat. Fernandinho, Asaph Borba, Nívea Soares, Gerson Ortega, Nelson Bomilcar, Christie Tristão) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c94aa5e64dd3d3d5189e7771769e76d7c98fd50b67637d782876b4042b72e1. 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/BRDHH0600014.
Jesus É O Rei (feat. Fernandinho, Asaph Borba, Nívea Soares, Gerson Ortega, Nelson Bomilcar, Christie Tristão) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646e8138c992396288421cdf585961553de7db6f16a860cf61a63c931c2ac01a. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/BRDHH0600015.
Adoradores (feat. Fernandinho, Asaph Borba, Nívea Soares, Gerson Ortega, Nelson Bomilcar, Christie Tristão) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad6b5091ce20e7b2aa0bba489581150fae804a86bacc079364c72674b562919. 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/BRDHH0600016.
Louvemos Ao Senhor / Magnifiquemos / Hosana / O Motivo Do Louvor - Acústico Ao Vivo
Comunhão e Adoração 6 (Acústico Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492a4185f1de35dfa1f222720aabcfe33bc21563862d5f73a92ce67a558e675b. 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/BRAPD0700010.
Orquestra Filarmônica de São Caetano do Sul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a8e410526329adac75fa19da80ef6fe89c2a14aa5bb67e1585ecbeacd6a6bb. 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/BRAPD0700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f782b1291e3571e1286b36a0194ff8dfd3e39cd5b86dc33dc2b0fa98226d77b. 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/QZ5AB1799968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667195198b6d8835696e5cb5a7aa41e0da20e2d9a8d7030f01127d29df0a1670. 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/QZ5AB1799974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab72ba5ba4bdfb95c69445275722a5d4f7455cf99e55242173168da91fdf43f5. 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/QZW9L2238887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289243c8e2c749915926fb60f9b01d0891aa05b57a87fa001badb51bebe82153. 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/QZW9L2238888.