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 0x33c8ab3cb3f0adb94afaf2583d6bc65b5fe80574c5f78ed68796101beee96574. 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/375ae502-fe72-41eb-a80b-bb656c94d32e.json and https://artists.proofprofile.net/proofs/artist/375ae502-fe72-41eb-a80b-bb656c94d32e.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 0x6adc845501515887a3521766ea1cb58b497014cc04931b577f900962c532ce42. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCABN1338657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d67bb7beb3cdef6ea4f1cf87413a43cb5c83c85a7020adcf0911f4b6ac29c5. 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/TCABN1338658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48f54ef5fce9e581de6098f5bcfcf2ce1b34a949211c2440e5545b50f8fe965. 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/TCABN1338659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022de40426f1648820d116acc8aa6c724e5005884f728eaaf39a7a0b29db2806. 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/TCABN1338660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b622b2dbb7cadba59ba10398516b582c42417e6c8b85a35fda46fe72791e02. 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/TCABN1338661.
Another Endless Morning (In the Sanctuary)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf215b26693c8ca0595eaa195aea63ea0d41a393f2331eca863a7942a83532cf2. 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/TCABN1338663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193699949ec598b6d418cb621f7d2c47e7932628ca3882a70b260d49df86af52. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCABN1338664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505cafff581bc66339a1ffbe77e97ca0a3ff6cf20b77550662d9ae4025f1e541. 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/TCABN1338665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b038f19e826d231e8df6369551bce939b277830fed29cc1b467c84098459a0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCABN1338666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327b549b2835b58f862d8daf1d9247363447f59d4be51905943bad4e775bab4d. 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/TCABN1338667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43578e7502c61e52295788b1c534f4e9fd75a8b1fb1cc268693e98666f5b4878. 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/TCABN1338668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0d17874fbfd1876136de0f8176fd74097bdfff2a4c9dd036ac6541c2c89d58. 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/USTCC1076447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f5950895643f67464c5f81d4403a027ec03fd0bf762904e8f9adabc867c63d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USTCC1076448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6628593f2be93382e82b3e57284d7677ecc9da8fd123e33804eb7b86367131b2. 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/USTCC1076449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b62aa372f5942fd218f9abde955d7bc44d4243c73c043e006fd007ea35bdfd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USTCC1076450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a81c4db88be2be3bf0e41ce760c8f04484af6e32c009c2ab1041408b29b3f8. 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/USTCC1076451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a3ff3478ad067be537eeeba134c6efb79678f843bf5af9ad970a551aebb729. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USTCC1076453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c27d7386ca56fd479db30608ffe35bdf26f587d7ff55f55f77556f2bfdc740. 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/USTCC1076455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f933015300143065a7633e1c3f0f6d1bc1ca659df488d965976832fdc907b6d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USTCC1076457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3b61ed7a6d5db09666e9ff7e8c6417c42c39dde1414a97307e17d15ffc4825. 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/USTCC1076462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957d092c951b33c6db218fb9192a923d512b2279bdac847c2a19f0d222bcd3a7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:16:32Z), 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/USTCC1076463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd5008084ea9ddf07cae508d15059dc5f310e98bbf1d811c7db696e389adb6a. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/USTCC1076454.
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 0xdba8797518a5d5fa76cfc262c01f5c94a058e7f5eac142353f4851c0e0b88df2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCABX1471859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b92bd1ae1a7c9676e9ac0d96c20668194e7d89341b749608f7a169e71126fd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCABX1471860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2894c12433dd105e20d7730b5108f0f98f6648c6cd45bf37f82d655a4ef4897. 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/TCABX1471861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1fd35ae724704276175f29004fe352ba4110bde1a041dc7a420a8329d7c925. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCABX1471862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05c3bb0f94600fb58032dd9f2aad952221d05293c3e0edb5a1efd6d1bbc99f5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:55:43Z), 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/TCABX1471863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0107354ba2248a6b9723aa3d0cf9b0b27c089ff8db4af9cde71091e02e9ca86. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/TCABX1471864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5191b483677d308873917a31b4e577139271362eb1a7bb19b6c5fc075b98ffd. 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/TCADJ1755893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7e6afb89e7a2f442936d93223b0c8bd952bade78e245151b98724fca3c021b. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/TCADJ1755889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc222ff575a9a6ae42b0fb15a547dfcf57fa14663436e90de25c7c18e7fbc0404. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TCADJ1755894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c56f9075899aa6091be2a48179e26c490c8670f2330eb21863b3724e190f60a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TCADJ1755895.