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 0x5a6d256e947c65483bb74084ade7e3d402c6dd78b9e6a477a97ace806dfd7609. 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/2437d853-f50e-4766-a341-b9799925924c.json and https://artists.proofprofile.net/proofs/artist/2437d853-f50e-4766-a341-b9799925924c.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 0x01db9dcc006d92f8f9969c1895e907d99dc3eb3da3382ec04b10a4e8d729b951. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:08:40Z), 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/BRWOS2100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7213266512cd49ef65980646542c238c5faa6c1a0f0d7af620a96f87d9954c8b. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/BRWOS2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25ebb8dc252ef2224314a6a36c1edc1dc721b4a17b444dd961ba9b823a97038. 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/BRWOS2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4edbd3a859c02356d6ed48f21907e5a082c7f47fded6cb7750c09942a922e9e4. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/BRWOS2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca56e557b4f93accedbb3dbd531a7c63ef29e50dbf21f02590024c9270d0f1e8. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/BRWOS2000010.
Todo Mundo Vai Sofrer / Tijolão / Cem Mil - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b901ed4fe80027c8eca3b60ab6b030643cc93909c22e68adaa1419c45d5f4e3. 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/BRWOS2000012.
Vou Ter Que Superar / Ser Humano ou Anjo - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db8d5bf0528672413250d87d2064148969e735634dd92a68902b3c1cfd630fd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BRWOS2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e469213ae957e839fb8a81e02a63fca953def9e368df09b0120cba29840f2e1. 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/BCBOR2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2b0c8cf02c0a1ba13bfce93c80b16eb481ab04e43473a1a88c9bcc652c00d1. 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/BCBOR2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfdc95fb885eec410e0a5fd83089465c01ac4a901a5f8ec44c08c34e4b07d194. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BRWOS2200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06135b9ec79822e1c114708e53df19024a83e6ce3bc54a20534f9b54697dfdc. 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/BRWOS2200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9da9cd2828fe80984659e157e2daf973ca6ec8a390665456834b367c06f4bd4. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/BRWOS2200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eecfdd529b1b7f3321f0db8c9f974c77dcf999239eaf1b20d3e2ebac46bae2b. 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/BRWOS2200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd168931cdf17d3e3727a844bdd7fa0eea565058105eeed1acb4580966c09d305. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BRWOS2200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2ec66beee891e9a8af855a3a9b5f79cfa52bde591886353057997076768ed3. 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/BRWOS2200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06135b9ec79822e1c114708e53df19024a83e6ce3bc54a20534f9b54697dfdc. 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/BRWOS2200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c568d10770583e1f6447aab049b45ddbdbaf8b627e626aeef65af3b631cddf. 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/BRWOS2200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f9030397552deed25fde65f71412411f31a377ea803f66537f11c4e4876e97. 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/BRWOS2200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40b287e6fccfc2b114877669bfdd14541e784972c18c3246ee7d5f39132e0c5. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:26:09Z), 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/BRWOS2200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2ec66beee891e9a8af855a3a9b5f79cfa52bde591886353057997076768ed3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BRWOS2200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06135b9ec79822e1c114708e53df19024a83e6ce3bc54a20534f9b54697dfdc. 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/BRWOS2200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b24281dd0900b9d80d38d514e5e6b8b409520d0b0244f5b25a83ef08ed236e. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/BRWOS2200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c568d10770583e1f6447aab049b45ddbdbaf8b627e626aeef65af3b631cddf. 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/BRWOS2200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09982367deb12d2712d00d06c49e8b1565ef54359269545ea6416f61a18bc22a. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/BCBOR2400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f4172fc051c4d39918d84b061dda3eb544fc5a7dd22a0a7d58c0d73afe853e. 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/BCBOR2700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1fe1b57382dceaca39cf60f9048a5d8efaf356a6145dc24ff59eb6b17902976. 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/BCBOR2400006.