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 0x0c64b576aae1cdf17f2973c071a12dbd3da146a513c9df4bf31dcb5b7ebe39f9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0bc3243-96a8-40ba-8c8c-38d7292ffc85.json and https://artists.proofprofile.net/proofs/artist/b0bc3243-96a8-40ba-8c8c-38d7292ffc85.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 0x73b6e4ff0258400a63acbe165297eb54187c5e159e1861717fea6698db498dc2. 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/QZTAW2345670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c0590d3aeeefcda288e4d03649c40e675dea6894443bfdcc4e56271bc00434. 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/QZDA52313054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466cd440534e9bf6ee277b93f355885a6b0b559c6c8c9e524fec6f866026ebcd. 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/QZHN32368601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55b64bc4dc3173ed1fd8d49329d6247a92df799884baf8d643156820885582c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZTAZ2265697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d998369b892b206d92155bff1a8f15b126eaff7e7f10a2dec4ec1880a7460cd. 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/SE6TI2376850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86d4951ee0626ecd5170a4c67105ff9515d1d500eb304286154fc618ec69cfb. 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/SE5752358315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55273c07095699dcd91cb65421bd346457e2d9a0b13cb37a326d7cf590af3a4f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE6XY2343370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1db5144d85cc4e7f843a42902190462555a1c046d05f66b9dec2c8f2e6ad8a2. 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/SE6XW2398612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be0f00d6bf2dc5e519200f3c002a4d268d124ee4bf64de0a9f067f5407024a7. 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/SE5BU2358308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97294f49e002fe3bc526e928ab7da82ee1cfd281e7db179bd38bc3eae62ec11. 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/SE62M2249532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bc421a2f29d87fc8b83338469a0c40c221e64c9e3afc8a57359273dd5067b8. 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/QZNWS2153238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4136c51072fe49e0229ff680ddc1fad6b7c991eaa88eee7166a424590be4a2cc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZGWW1987264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e3c86ed8f37b00f3ce7398f0ddf6e946b390cf0b053e8d4c7dba1100f6de17. 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/QZ22B2086127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2738aceb5446dcb53e322a930a3015abea7df0879550ff965fe221ecee8d64a. 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/SE5752412515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2469b3c44796e173a68464e1269d9347295b2da77a4d65e7638a4d1d1381fcb4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZTBD2303778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57cdb626e798eecfd6b73395039872b840ee534e2ded28b9e8434b459eb65fd3. 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/SE6TI2380781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0605272d0c7b81f37fcb992e18b3c8835ea726c573f8a1db2c4c428bfabf972a. 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/SE6I32375854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cfcbea03f7146f09056bfd7f26fa31d1564df4dfbc207cea11f5991b395114f. 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/SE6I32345685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930e78b57d72231a7ce67132227c3328f20ee46fe4b2581e723f3fe1f3a38c0c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE6I32324473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06733a54c59980660d102e46083170a8f514ecd7cfc366b59576c6402c42baed. 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/SE6HN2457083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b15f64263f17cb2f9be6e16259f88a2139dea0810d619734fe25183035472e7. 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/SE6HN2425945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209b6f9eb8533709cc68c494092f4b15e28a967f08d7fbbaa54e12000cd9588a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZK6G2486238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50abe487d8a870ea1cdd0e74b4affbfec203c8d4911c7fdb6601a85ccca92fd2. 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/SE5752464498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4712e0630b12f69ffdbd4dd76a7cfb5978884a91fcce789681c8f94b2d8618. 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/SE6I32482873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa8d2615d4839e85b33422a337e8c24e6dd6b4e328d0db6bcca77ef29fcf42c. 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/SE6XX2358998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1c6a59f79be5bc4fdbfac265bf09e0dc2baef86dc3353c5f82fe7f7c94a257. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/SE6XY2323719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc041499dfe76c0e0ba014686b95a0ac0ef20cbfb608424697d6073beb717a23. 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/SE6SA2383690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ad3751469ae3627b0130a7e31879efced5a88d1d16a2f77882914d9213e928. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/SE6SA2352074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f8a78e5597e9059044668b07cc8c56ef4948ba630b58a67b740333b72fe614. 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/SE6TI2373370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5763c5d36e924cd3cbaf6cd5ee29e020bbddac9db9d04a5f1d69f74b5a2bb3eb. 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/SE6XY2302944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf0dd4e2349e5f5ecc97cbe3971a727a1067424874b1b342bf0f48758dd5139. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE6QE2367313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2509e1b9177beb7d2857c0d606309e9dadcda69a838446497f2999b853e800d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZDA82329735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868a1fa82e527e910d8c51757a641ad843df916bde46fa80d20dc29453092863. 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/SE6SA2217628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9906a110e96e4d44d8f17feeb81be615d36053d904bb8238c52c4976a21adc. 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/QZNWU2262879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3603be2a425135b00528398fd4e22a87f6b3d9e0fe84f40080acfb9d24f588. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZPJ32185920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaac45ea373b6973427546cd6b7ffc90de0485a5b81ace07004e6b6c9c3fc355. 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/QZMEM2290150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eba44528469dc586b5cb84e02b827e1d86ba54f70a2a3b5121be676e5116206. 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/SE6HN2485933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebed0f61f15ec3e02f5b3204dde3e2cb7532628aaa84abf38c19489c623d29d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE6SA2433409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55c31965e5d2137319a39264e08afe7e7d6f9163a9ce56866ae58fe606bcc5b. 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/SE6SA2424429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3b550bfdf14886bd2c539c0e853f2ccdbee872d5cad0681dd8f976345f1657. 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/SE6I32452578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ad4cb3b1a640744da2b09f862a2da90118cc57471190959eefed6f3a5e7bdc. 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/SE5BU2574231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11d959bdd9a242e7605eec9d6e8a7a0c04af20a5f4bbec49356421ae67dc0c9. 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/SE6XX2501906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aca4e05f6ec267ffcf3910326c8b86d247bfe4acf0d8af720ff0b23dbd3a1eb. 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/SE6XX2512071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb4d97a0fd637abfcb023b99b82cb066c62fcdcf4452babade12164c2c99dc6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE6XY2590075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549d044c043646dc42609f84db01fae1c56391596359ec21297247bf9089ae61. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SE6XY2581492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a6b44b55a5109aa6b7d04f6a69de8619986408641eed597fc900d3eefe624f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE6XY2535347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5f11a96528c1280d112be005f8e0e78ad38efad14e8d6433afaa579e452428. 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/SE6XY2534575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9339553a8b2ea30046f4aecb047c96958722db595a7738a213a9a4a1c92a6b. 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/SE6XY2519533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cf9564540ee5943dc83807537cf85c6f06a36afc7a577619b2d33e3a3eb9dd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE6XY2511272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b53e004d2c0f129e46876d38d2846914b95f796b2f78792fee23612941176a8. 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/SE5BU2516508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6192a8869479c7b50146f396fb3fd498a6a4b04e98705ab1debec2eba676304b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5BU2562478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03b885f2a2a925b366f6d760111b1e9272a79a570ef1301bd287dec5c769953. 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/SE5BU2565251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98345966132bf916cc9692970aa8e18caebff4bb2a1500a4d75be7767d58a043. 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/QT3EX2421037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f80fa2bb5953f4d9c120ed0a4920ac3a556560e56a71018bbb11e01c4c03ea2. 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/QZZ7S2470026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84e7846f4bbc5b369af15555145112cd7d536a2a4d65cc0d23db52469775ba9. 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/QZZ792468697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2decfc979e71894231fdab7f023fe44f58b69d73602e9716741e9327aadfdf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE6SA2456411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18cc99d206708848b689de0e663c6c4ae176c074da92c1b5d03c97d54a361a1. 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/QZWFX2432449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b15d6233174ac913da33066095728f9440c39a3f4d9e3d77ca6d68fc7dd43f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZDA82221671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a69d131b8d2794016245580fffda41a34545fc703e499b26ee7afbb6608a74. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZNWY2103573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb28ee8394aa64002fb1561d79f74df477c0cea536600ba3f0b4b76c305ac5b. 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/QZHNC2167495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd82b3edf3c726e273a9eef601cafdc8342e0e7bfc2c236f0025f642491e1df. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZHN52331101.
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