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 0x6a111b50409066a61fd91dd18678275e7c59bea305095202520ecf8acd191d16. 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/5348972d-c437-4e0c-a0fa-76411cf50f47.json and https://artists.proofprofile.net/proofs/artist/5348972d-c437-4e0c-a0fa-76411cf50f47.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 0xd91ed65293350a312460d418585f9a70c66ebe38e5dfe1ed8729d542724c35a9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNJZ2335733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce3c420fe3840cfd2be1078fa71c44f38492159c35cc74fd24839add432648f. 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/QZNJZ2335749.
Pot-Pourri: Vou Beber de Novo / Circuito do Amor / Seguindo Seus Passos - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb466d15da0d2792b4f59cacdfddb12927c39285ddb3ff5cfb0a99b47bbff8646. 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/BRAPI0600353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3cce84adc6e814a50ad1be0add4cd95edbfae89d20da13cb8be6c611849f34. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BRAPI0600358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbf1b1b832e9ace43cf4c1ef2e5e607702b2d758d4e63ac799963ef09b3b086. 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/BRAPI0600361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee72e994c793c50b13722aab776a6efe2a133f2a3d0d7319d95e2f5e08154c39. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/BRAPI0600356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0556f59cb7768d55f823a71bea978ca4162b8795f1984cfc939246eb84c7693. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/BRAPI0600359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562965694dca8e9a84407ce24c6ae4caee0745f2544b8097049a5c2f8f593c76. 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/BRAPI0600362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e29d06a92cb402f3aa97024b4315d7030b6891a3ba34b68a94645406d0ab01. 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/BRAPI0600363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e82112f9e071670ead7f75c7719921f9ae6dacd3a0bdf312498fe6c826f81a2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BRAPI0600366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7294b1fbc96ff9c816fa26f1c628bd4e402b238242a58df560c7b1dc230f509d. 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/BRAPI0600354.
Pot-Pourri: Veneno Lento / Hoje Eu Não Posso Ir / Rancho do Vale - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9193b335f8c7e453c7df1ebae536f3d13e22e93030adac2e1ba53e7e175539. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:32:23Z), 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/BRAPI0600365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3369e4ef5a6a72fa0d5550a36e55f45e2fed93b43fad34c6fc6972a190716891. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BRAPI0600367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffa73d389a348c83706155d1750e416f9942622bc7844c4ce391ca8b2dc0030. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNJZ2389982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5c0818d68200a7dd2f253d46a8b410af6e4942b0358d4f442af3198d6433aa. 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/QZTPX2383613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd421a5e4ea42ca6c0e2929b61a81b303ac05f7089e20dbe07f6e2abbcd24b07a. 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/QZTPX2383601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c19d2243ca9e5c201376c5eee4fdb40cc93f796d3d21f3016521abc6456b331. 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/QZTPX2383603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf21a0a481a4188dcc114e3f38be54ac889307465c918bc6b198bade850c573. 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/QZTPX2383605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c42a179cb1b67b0aafdb4ff3d00e4208f7f350d7d7e34f30873fd469ce4add. 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/QZTPX2383608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e211d6fd2d4cab683f36663d2d0f6b7c7f1dbc19944487cab31793170083cbf. 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/QZTPX2383607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81c0379ba1e8395ee28fea857ad4c214d225f20ad9aa52bfff07141556192cd. 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/QZTPX2383611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b4e7503cd820ad8bf141c9379fcebb0ad619aa673092998b66be0b442cec33. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BXNT62401736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c1ef172eebfed451dc81faf6f839d69f75b555c1e8a94ac646c12f5a242633. 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/BXNT62401700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b4e7503cd820ad8bf141c9379fcebb0ad619aa673092998b66be0b442cec33. 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/BXNT62401736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c1ef172eebfed451dc81faf6f839d69f75b555c1e8a94ac646c12f5a242633. 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/BXNT62401700.