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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678291d7a3748955fb157b65e86dfe1e81455721a5642996f93db23507bafdaa. 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/3a311991-09f4-4820-9903-48cd04990b74.json and https://artists.proofprofile.net/proofs/artist/3a311991-09f4-4820-9903-48cd04990b74.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d6cc00a205869938efae27eb304c21a11fa582e1c8477821fb09d4f6aae194. 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/RUA1D2429283.
Нас свяжут вместе (DJ Mix) [Версия для дискотек]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891f64f621c3f252f38c11efc540185d2b301b3760a26fadcae4f48ec5cf5413. 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/RUA1D2494171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd966a031852706d3bd403dd0cb8407919ea6064379a5287f9c389ebe8d929f3. 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/QZTPX2430516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe71910f8a01c295dbdd1e39e958bb3f3820d2bee4067327b073937ec733cf56. 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/QZW9K2429036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e768886fadae2cca15af6e8b7fe183a3d84cb98ea929fbc390ad436467f7a17. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/QZW9M2462481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ae364f231bc7445b14ecaf752d888704cd5c2d51a42abe4e9e18a4b1b76df4. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/QZW9M2403356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8364b23bd9742b6a9bf5b54a5b4d4a991892706202cf609a106ded54a4870ddd. 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/US7VG2582135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c26b1006c05800a1372ffcbb3b124d73e325c9845ed082133f1f73a6415515. 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/QZGLM2525308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2e00e20c864804f97874a0132f1dfc86b4476846def4b78570c2dd55308cba. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZGLM2534152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9e47930c8da0b35dd80ad31792b7e03abcc770e807d7e982d51bef72157fda. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZGLS2515253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b044bc2ecf2dcc30b153c95e7759e8cf0da7cc8ae854c4d7d13f2bf7d9f42d0. 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/QZGLS2539500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9b67139a7eae4272cfabd082b0ebac08f3b2327bcc8ea2c2595ba604ec4cec. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZGLS2516419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412487f242027abbe0a7d2c5c78d71d36ae85f557b2dc12ab82bf3543b7d8f3b. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZGLS2539643.
Я больше не буду (Brazilian Phonk Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9534c07ed026cea71eae25120ab07ea26e20b9bfa8031f0914aa3c08a2de718. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/RUA6Y2517248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767a3867d9ec5ea5943a2908bc42bbb07761cc0a6b1bed6ea4cd665b0a868194. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZNJV2535374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50357d2d95b09792a8aba0100cbdc273ef9bec722649284e350564bac3e6e119. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZNJV2511447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c1df686367379c86224fe1a59f19f78a09f124ca9980f48bafd91e1ff1b40e. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/QZNJX2536951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464014f7fefd5fb3d9d2a7db5e106e5b25ad9d0ed50252c8d6670b1e959daa4c. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZNJX2547490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a23a52687db2b2a33848b41a5811e8d87a0606bda6a403994adc39ce511247. 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/RUA6Y2543584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe124e2b301658535272189578943df06617353fbe53587cd5572d1e5056e5920. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T00:05:41Z), 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/QZTPX2570014.