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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9679ae0cb539a32ffe271760582797c393b43553fc6f26dd8d569da5e7c899f1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4ae6fcd-e9de-4485-b91b-a45295d7e617.json and https://artists.proofprofile.net/proofs/artist/e4ae6fcd-e9de-4485-b91b-a45295d7e617.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 → 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733623cef30b94d6e29b1545911433ca449e97f288eded58244db5bdff7425aa. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/BRLQM0800002.
No Teu Altar (Canções para Celebração Eucarística)
Senhor, Tende Piedade de Nós / Na Água e no Espírito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb6661446fce90e71bf88e76d1dc35593c15806228611543477372501a7083e. 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/BRLQM2000001.
Piano & Vozes 2: Canções Litúrgicas (Playback)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9567d7c70c2f32c82fab9dd58f771e6eeb590dfa9774072e6359a86d519541. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/BRLQM2000003.
Tende Piedade de Nós / Na Água e no Espírito / Tudo a Ti / Bendito Seja Deus / Aleluia
Que Todos Sejam Um: Canções Litúrgicas (Playback)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b65efdb8437798214134b2556747ff316696b9e5d4a9c7a1320bef4570d268. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-20T00:28:04Z), 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/QZNJY2005274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05532f4efdb0d60a1793b958aea63407c408107575882c388076ba6651a2b88a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZNJY2005276.
Salmo 50: Misericórdia, Ó Senhor (Cinzas)
Salmo 21: Meu Deus, Meu Deus, por Que Me Abandonastes? (Ramos)
Salmo 115: O Cálice por Nós Abençoado (Quinta-Feira Santa)
Salmo 30: Ó Pai, em Tuas Mãos (Sexta-Feira da Paixão)
Salmos Acústicos: Semana Santa e Tríduo Pascal (Playback)
Salmos Acústicos: Semana Santa e Tríduo Pascal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911e2980c080a47b250d6739d2d08e35e7ae563e27be009057d8deb7d213baee. 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/QZGLM2137310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2bd5bdabdb61bead24a9c1b0328b984a62d2102f9868b360d6df5276700df9. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:41:10Z), 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/QZHZ32138035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6413b2c70d06579c813be9912557d05951c97bbafeeee8d8137c4588ae405e4a. 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/QZHZ42134291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0478183fc82349f1daa5863330914f15603aa3d6a65054db754dbf4593b6c9f0. 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/QZHZ42134292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b0396d7cace965fcc8ae35969fca31237aa719125385cf869e23fb9aebc97a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTVM2154342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32c1f0e2d45b3881b72686c8cc77c48fdad7f45d7f6ab305f345d3e8ecc401a. 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/QZHZ32271244.
Sopra Espírito Santo (Ao Vivo em Aparecida)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90aff658f07465f9a985e0b9c171bc024379b421fc319284a7cfd7e1cfd6d150. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:23:55Z), 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/QZGLM2358609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e90fec81268dee1b4b93d9524ba32dfb7b0386934e97bebb374a57b69bf626d. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:26:16Z), 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/QZTPX2376306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e2845a2e0cad6d79643562b741d5f14a2a6054eb468715cbee62111c128d5b. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZW9K2456623.