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 0xb5533b54ade97b7f467c070ca564b9b060b691deaa158eb8969614c609af3648. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ef8235e-027d-4da8-bb62-2c28d16c2b2b.json and https://artists.proofprofile.net/proofs/artist/0ef8235e-027d-4da8-bb62-2c28d16c2b2b.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 0x61b5265d48710d871be8ba1546e293931016ec522f3863af9d7c466cf5905f0b. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:34:56Z), 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/BRAPI0601354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad611089c7dcd5bf2c312e81a19121043ec1cdcddfa1326de31fa6aaaa9f7043. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BRAPI0601353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aec3937ef343188ff0181402ca7bba1193ec74427f9af92870deb9cf06fc2a3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZF8D2501237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96033bf7282dd55362ff2823ea2367a1d714796020929fd93478004335c14122. 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/QZF8D2501243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2079b62f9746f8822ae20e1ccee2ec8386bb6c3d10b2ff4800386c6bf18407. 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/QZF8D2501244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a14b61c41ab232e3362e0397a5dc850874e66c3edbc0a64281fee868bb18472. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZF8D2501245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e96f9f9bde975e48efacd58a82440650b82798df305f744b1d9df9460ddb1e8. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/FR10S1844606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277fa07c06f0101d7678eef2bbbaf89d3cec70f2417fc77c7c126ae3034dcfe0. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:11:59Z), 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/FR10S1844617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7606d6e3779646e1bf245e2c89476c3ab51a4d6e339853f9fe9323b3b809efe. 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/FR10S1852807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73187e21fdc454b282e4116b3cf6fb74c44ce7bd96bc095b3386a71e789d676. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FR10S1852808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ca33682d780a99142384b3f06ee2d7e6a773f10beceb689fdc6c760a0c5330. 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/FR10S1852809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ae9532aaa61bc6fd73f63411d11cc214a70927dade5e2deb1fd8fdd93d844b. 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/FR10S1852810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac74df2dc68b3005831e66a67d378db0e61d4a63c6ed0f1a259b342c688bfef2. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/FR10S1852812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32007413e05d020351a5acc2b2dac6959e5aaef5510bb0013f2c4c1e35e4be57. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/FR10S1852817.
A Maior Fuleragem de Todos os Tempos (18 Anos) [Ao Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9499cce2de2bd92a121ffa05beb1c8d01fe03e5a5c47cdfde421f512b73b0718. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZ5AB2417060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd094cf2a23fde412d9974c891fb29b8b3d7e5fc8fdb88fe998fe4387ddcec586. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:58:17Z), 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/QZ5AB2417061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c796cc5e70efb23fd8b01330a24ecc1f0d4c0629748c474737d70f5abd99b1b. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZ5AB2417064.
Puta Que Pariu, Arrochadeira de Maluco - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8fe52d729f5dc04afefd5d358634f727f4311e17c9bdf48b7b4c807c0b800f. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZ5AB2417066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2aa9149f83d6b2abdc237d92635009cc8f23a57e980c2fbee87cdbbaca30bf. 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/QZ5AB2417068.
Piriri Pompom, Ninjas do Arrocha - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aadbb5441779ffe0e75cda67c78f14b5d7047da5e58ddb185542f03ed27979a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZ5AB2417069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfdb964ce9844fec6843934718a469ee10d85005095ab3fa8f4818d21358fb2. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/BXKN32300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b12f347bf32d6bbda7925353175776251fefe7a5b94c0830a4ac83985fcb0f6. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:02:34Z), 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/BXKN32500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde9c9a4872a5fee6a083dbfd2f697111adbf3cea45ca49222094132d23e333c. 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/BXKN32500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487130bf81524f6d34b11912e73f8d54b03e4fb7da163ee79060a0ae63e0fb04. 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/BXKN32500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b476aaad5058f41857719139f2da44726d881ce1a8e96d74caf7ff1579ed3ad. 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/BXKN32500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x727bdebb9431c7d04530a95d05cf2508bfc27b6bbf29438465acb8952c46cabe. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:33:08Z), 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/BXKN32500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab04d175b4b0d12658e88207bc4a97ec3cd1b154646a28a45789dcc4c392397. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/BXKN32500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28412f1b91be381b94d45bf12fd219fcf3778e59df8922e6dd2153dcc92cc1a3. 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/BXKN32500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9f0c0d245ef0251864e74b7400d944288620bb4ad5b1468b162192ea32f3ea. 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/QZF8D2500524.