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 0x05ce21d1115bc5c9d9a0ab7e6ab990cf1245983e1155482baa3f116070285299. 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/d7654d22-aa6e-41ae-9ca0-3ff1d6766167.json and https://artists.proofprofile.net/proofs/artist/d7654d22-aa6e-41ae-9ca0-3ff1d6766167.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ao Vivo no Forró do Zé Bonitin (Macaíba - Rn)
Ao Vivo no Forró do Zé Bonitin - Macaíba - RN
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 0x5cf40fabf5691f4f31c4bb50d0a8eb5aa02a25bd056783137dcc136cba9e1c17. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:49:30Z), 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/BR90B1501301.
O Hino do Galo da Madrugada / Frevo do Galo - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8ddd9f7027cf4a16427d55380d60946cd8226d68ab31a640e8326d3fafd76a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BR90B1501310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e59f38ad758a94760d42dbb5cc074fb0d9058e66be2c059abb462182efbcbc. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:17:05Z), 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/BR90B1501308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0e00734995a642f34925a1289b0369576994188cf5cb4dcf9287d58ba4e673. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BR90B1501354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695ce4eff24f96ba31eb8a6579ea141448c93ad75d4f06f4e07c63901ea2143f. 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/BR90B1501326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bc653b742091c821b5ef083b84d7a0db2e7407fb72779f8f77419540f85b6e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BR90B1501322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4704900e40c810cabc968c8f46b7391936dffa23ba0cb0f2cf4ad92c74d9a74f. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/BR90B1501324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ee549efcba2c4a0e9359ce08c59ab65ad64b85c723309a698b4d5c05ce8e99. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BR90B1501331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf09a465b95f4f2c8d2dedeed74b8fd5a94979559811a20e82cfcee7a98ff53. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/BR90B1501318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aee707ffe8d8bf8e782b2fa9dfcafdaa69b6cd7fbcf223f6c7a965ded94219f. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/BR90B1501332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc0846f733af1b32e847df5bdd715acbb8ae017b13d88dada37a5aeb91d4ec3. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/BR90B1501334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cfc5f4c5069755fed0bce89ad6c22155c103da0d0457a3328575a510647b2d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BR90B1501338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306f18a73e3c1f3cd295d49066e2429676914906f172a82d515e1ccf0725d905. 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/BR90B1501340.
Come Dorme / Casa Casa / O Mais Querido San
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ff5a83f44931e5d0ec66b98d36e1f5ccbc54c73d91ab546cd1b5468a03a059. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/BR90B1501341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b14f08dd0746f84f19330d7c628f23b226c2e0b5ae8fb004a5d88ca389c887. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:18:22Z), 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/BR90B1501343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a94d6bb488f2f5677c0c9612e96abefc1d7533c752c5b88ddc030ddb1ca97c. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/BR90B1501344.
Modelos de Verão / Passei no Vestibular / Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7779c7232a4c47e38ce75bc27afba550e107b31fb007d1a0865c3bc846c1cd. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/BR90B1501347.
Turma do Funil / Balzaquiana / Garota de Sá
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c97653ae03b813ac96e8d2f03a026e10dacecd44823b94554c631d38da7278. 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/BR90B1501348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe401b4a08d257dbd6ee682fd4072f4769371f2fe19dd26a0d6f21510a709b83c. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:03:53Z), 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/BR90B1501350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8146cebb467e1194e48a43949fe29fb0f8e738e0507f043cd94c4a699434d7. 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/BR90B1501352.
Ressaca / Cabeça de Mulher / Esquadrão de Aço
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872b8f755284b2d45a00d18786965cec3f5b2e240c3a9f5b221e68bdf8889acf. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/BR90B1501396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0dd1f95c3c11c9498e177d3617e2318f904301efafd820606295179e984ef1. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/BR90B1501398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde791312f5638c7f07f5dc234e78cee0ef026047967568600053b19b63355323. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/BR90B1501388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90d96d1715a86eb395a7d334842b415cbb5d4cf6cf3f72aa89ed342f869ced8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BR90B1501400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aba9efe78a88d473c6ff34202ae80257bfb43279976acc09c355788d5669f5d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BR90B1501411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73989452a7217232a35f2a986c14e7d94c8b1e89ec31c569fb5b20a961368fdd. 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/BR90B1501408.