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 0x118422e61a68e54c5e2e119c791d29807280bc20a8e1c40da2f7cb6a25c8efc4. 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/1091dc5c-787c-48f6-9d91-3ad30213f5dd.json and https://artists.proofprofile.net/proofs/artist/1091dc5c-787c-48f6-9d91-3ad30213f5dd.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 0x642302c2c2bf3bdc4c92d52cadae27a09865901642f4643d02c043be108b9415. 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/QZES62354008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26d73139e92a3daa5a354797751d5c3c25759b6705c7b7cfcd3fa83842f9180. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZHN52316602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72925d43a81df2804026ee4da2a64d109a7b3a33d81308b83a701e66af7d2527. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:22:15Z), 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/QZHN72341896.
THE CHRISTMAS ALBUM: Secure the Christmas Border
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4ae398f3d3853cc177685a6819bd842f2d3fbff52ffc9c627ae8bced106874. 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/QZNWV2364772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2657370b495b23b097a86b7f61022aedcdeca80b5e37f69d98288fbc19016e2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZTAZ2320976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a84ed5d20d7df37bce955322ad5a95110044a74944edd430a62078865da0535. 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/QZFZ62456607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4087548feaedf64684285994445a90080d6cee35c4f78b42c7f86d46eb2d9787. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:25:31Z), 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/QZMEQ2423993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb71b63c5c93465a7f96d4b3291dd5ac4e0a5533963bba574a8295ed1031eeb. 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/QZTAW2405111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9a2f1a7a6ee912f911e372e2fc146c0aef86825490baed9d606a4a7b2a4e64. 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/QZTBA2404190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8ba97eb9efb59a5c4b28b354da49ab40cd0466938856fcdf5f0e4523d43767. 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/QZNWU2432467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888b8c03eca6693f35cff6a5a72f43c3aaa891b450da1050b9b557d91804bdcd. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZWFT2475164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347bd190540170c525d4094d20ef67ba010c735cc06ed890daf4328303d98fb4. 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/QZWFT2475166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194f01859bc5c89c7f5373c7d0e80944cc93dbd605a5d382dd7dc5fcc41d28e2. 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/QZWFT2475169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4372bb649577f14f6d11ddba147830931c603dc309480dd7f420340f3ac533dd. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZZ7W2475104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f6376ebeeff9a51c1a941154522bf699061c7e0bacc531fbe06723548e0421. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QT3F32433866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacafa0b35dd72820af1dbd135eb5bf2fffe4524590003a84811a4d7331219821. 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/QZQAY2514782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db866e7206216321bece451f74e75ffd81babe66218d4f0ce2919c931abf8f2. 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/QZQAY2586164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e6c93f9ad728d32157d317a6378e40ea444c9b6383f3fa3eb8e26dd63d0928. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:45:54Z), 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/QZQAY2541688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b40295ddc36be5885ce76f5bf242f59f8ee9891364cc0683b2075088c9225b4. 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/QZQAY2572785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6599b72cef337be7fd113ab0f4454ef62bfa80ae6dff30f8f96de2eca92f7f9f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZQAY2547831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c314247f4e619bcdc5628dde7b18605acf8693e7b3c3c5c620530b46658b20. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZQAY2582981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c810d33ef75c2c9c416deb630f841e6f36a0d4c76574fcecd72a862cd6a7e6a. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZQAY2599458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04c783dd2167f779f708a21846e684ed7b7be78de1360dd9f29a178bd48f75a. 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/QZQAY2597751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eadbdb9f642bcc79c5c3b84cd203050c7009b70d3ce4696c08badd3ff062661. 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/QZQAY2599521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157219c404add78dd9f0f2fde29b1c0b33f602c784968ea6aa24462a80a86b3d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZSYP2512376.