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 0x25be909e82925598bac68427967725197bfbb76733c7d94fffa240a03a0342c9. 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/e4387320-054e-4590-8441-9caf53f4e4eb.json and https://artists.proofprofile.net/proofs/artist/e4387320-054e-4590-8441-9caf53f4e4eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Alguma Coisa / Paz Enloquecida (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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d56fb67129ad2223269ea8804720d7ac017752198da6bf1ef820b144e42912. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BXR8W2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89dc3f9b26411657f13f9888a9c944386d09239e002b46c65ec97863307f1bd0. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/BXR8W2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a2e50cbf1ed4346cdfbe1291490708360705f89566f6a809354c5325ede64b. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:26:58Z), 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/BXR8W2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf744ba8df0e3261ecb42d740436e1bdc69a45a07e034f22faa524d5af2498887. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:30:02Z), 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/BXR8W2000007.
Alguma Coisa / Paz Enlouquecida - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5aa080a365c052113a66b4249b5752a4b48712db70d6819ae75ae061a9f67eb. 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/BXR8W1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15bba3db8861696477b19e07fd83ea641c6deeb1751024b872b38fdd73b53f9d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BXR8W2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c089aca3741124113a9a5e1e2d4ddeb752b521e22d8d1c9f51a66b4e71b751. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/BXR8W2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9134c453d645d15037e7cb0290faa6b597a08e5c17dcb8f793030aba837ad3bf. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:38:25Z), 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/BXR8W2000011.
Mariana Parte Minha / Dois Peixinhos - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1530166751bf67391c2592b5e9c31b73103de96e0c917a404fd9682880b3182d. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BXR8W2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1361601bc233c93554d060b016e2a429b1de06ef35422859de61675d365f8db8. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BXR8W2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43fcf717c981de860cae20393acfac3abcecbf2ed49c4c43d95ce849b62b4501. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:11:14Z), 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/BXR8W2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a123f3651cf04f106616744a15af277977c1ada04076cdc1caff6a030c642b. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:33:00Z), 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/BXR8W2000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30999fd80aeec2747b73fe74bce7fb344b3f0dda319dd95430749dd67ae10496. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/BXR8W2000016.
Marcelinho Freitas no Estúdio Showlivre (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea9ab6a028e3df07ab0cba8efacd68c481fb062751a8a17772221966c1ceec3. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/BXSSW2300499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2592e2579a143b0db6cb786e6b6d9cdf19706ed2203c7c1bdc59b319b7988afe. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:43:10Z), 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/BXSSW2300501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493cedc18919023c80a7210d3bef1e9f9d2d19729e24ddafa27d686349c9bae9. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/BC91N2400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a14c6be737b2891a2ef883ba423e3317a001193b1dd7b2d82ef4bce4357229. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:57:21Z), 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/BXMWF2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a204c46a64cbb3f60115283bcd2f7810a9c4d4b90fcc73fdd1d9ed95a3c0e4. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/BXMWF2400016.
O Som do Povo Ninguém Silencia (Tema de Final de Ano Transcontinental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122deede5b6e85f711d2d587ba5c1b6d45dff7e67436ec5ae840a58b8740f0c2. 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/US7VG1869255.
Alucinados (Ao Vivo em São Bernardo, SP), Vol. 01
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed31c94f292da1c11cc92e94d3f368c1974f25992ce7b83cb6b15ab6dc1927d. 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/BC1PM2200104.
Cigana / Marrom Bombom / Nascente - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44f0662b17840f9b9bf284c02732e9950e66491b234eb7a46b230de8a8e7eb5. 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/BXMKS2200523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44f0662b17840f9b9bf284c02732e9950e66491b234eb7a46b230de8a8e7eb5. 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/BXMKS2200523.
Cigana / Marrom Bombom / Nascente (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44f0662b17840f9b9bf284c02732e9950e66491b234eb7a46b230de8a8e7eb5. 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/BXMKS2200523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed31c94f292da1c11cc92e94d3f368c1974f25992ce7b83cb6b15ab6dc1927d. 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/BC1PM2200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a84a4d299a55a8fc63ce09e9f7bd67befe5da56453b3f3afb02c7a1ada99ce1. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/BC91N2400084.
Você Me Venceu / Paraíso / Nunca Mais Sofrer / Um Dia - Ao Vivo
Marquinhos Sensação 30 Anos, Pt. 1 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef08a47ac4e943cc01a42dd120feb054a509ef65053d0fb6da202d7e17380c23. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZGLM2276466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339333372793fba97460a24bf2e2edd4a30c3fd7dbede558ea9781935040ad0c. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/BKORX2500057.
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