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 0xbab44f78f03a411bd98dc7f39e83072f37ae9fdbcc3ce1539afea000a7b110c6. 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/7d81c225-daa6-4fdd-a35e-d6ea157661a1.json and https://artists.proofprofile.net/proofs/artist/7d81c225-daa6-4fdd-a35e-d6ea157661a1.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 0x12f343e4e3cafb2dcb1d239eb467d187a3530c56939754ce5eee7085e955bdb0. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QM3DF2001721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ec4b98f7f80bca470d2a321d18df7324c08b3e992e42526fa3f0d7e5aad70a. 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/USANG2116772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d15c69ffec22a4a0c3da812edd3d8964fd962a5fd4e5b3c1ee8ac923c8dca8. 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/QZTVM2108637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1e7f4dd23c00d935d515c056290b7023c685b079e357668efee4c0330b7a6e. 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/QZHZ52267341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2deb41cb2eae9f3c3d5b12082bd256190599b208f3396217cb839fc6510bbf67. 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/QZNJY2286310.
Set Live Reggaeold #1 (Reggaeton Old School) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47fa907771de9780ab51f4606b87bd79eec2b7a9cff0ab36148afe2e3ab49d7. 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/QZW9L2376395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d31ac6bfa61b11ac9834eea2bb99834e6474e069cb2ae04d50c53093c155c6. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/ARIXB2313764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325a5081f7443277d78b4e658d764cb362fd1208c42deab7ac1085334df66412. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QZGLM2409206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5b9b8a4d8515f80b8c2f1ab41c73127726cc38d046a9d9f181a4e0b3d2da00. 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/QZGLM2455382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b286d853afabdaab6de969911f49bfedb23152b6bb3a551f873d7e6e1f22cb3. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:11:32Z), 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/QZAKB2382255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf81d2a25abc2a67bb1b19c5a9338a4d65cd52f09fe7ea547300ae7c25ce8215. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:22:25Z), 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/QZAKB2383355.
Set Live Reggaeold #2 (Reggaeton Old School) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b427c539e5bb2639426939f9268285cf7d29570a1c79fe83b9691246c1141a. 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/QZAKB2416167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae676765c09b6e5cbd82dea418b9e5a308851a08fab618ab9c4cb0b449f48ec. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:51:30Z), 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/QZAKB2419886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2ff0da77b1a039f5adf7ccbe8da9a505e48834bf5e2afd69e84decda874ca0. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZAKB2427891.
Baila Morena + Candy + Perdoname (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de55978d23d0d4ced74baebb91b384f196b9828fc52eb232637ed2e91bea01c. 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/QZAKB2451679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f8b61e4aa218af9703ffab56d387be30154497de7aea2c8c2d1401d2802df4. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZAKB2464210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4703a959446126b53a89153c43a939884b667253478ba461f90f63342e4f45f9. 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/QZAKB2475392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b80b325426ab86c485857fd0038b7f8302ae8b228083310645a3f6301892bb7. 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/QZAKB2528144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534cec330193c33c43d119852165bb5a5697266fdcfecd8a4a44dd6edbec39f8. 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/QZAKB2528143.