1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb0d88dac474da74d2abd2a1809eefde383b3082ec23fe1decba952a3bf352bea. 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/7d1069e6-28eb-4a8a-9ef6-4d6673ad5586.json and https://artists.proofprofile.net/proofs/artist/7d1069e6-28eb-4a8a-9ef6-4d6673ad5586.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 → block OTSBitcoinBlock must exist at that height 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 0x722e3fb7d9f8c7d2c8052d5f001806b57ff4e05df472fd95cea99dd3b4e2c748. 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/INS182403116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668ec39ce81d85485faa3474b02d542b93fa0e2bd29323b3b1500695be8a56be. 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/INS182403128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d9d71e556847057917a3f11d3673697746e6314aa26f8e2b2c2cda2bf86e19. 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/INS182403129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce47e3fe2e66014497cb1a6b539b980a62daa5e1c6ef997f92f3ff7182d8ef79. 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/INS182403130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc577b65485ef20d14cf238bd5138e4e0f33c5a7978a99b9b3d2e83b73023a21b. 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/INS182403131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6e9908d29645e5c8feb44d6d526d3b831bc1883c3930ccc6895d2fa5c575c4. 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/INS182403132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2adb97407af8976feebec3c756926f1a0103143f87b3169d9375841ea6845b. 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/INS182403133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90c15d6e7a59ca4c07ac4c9574979f1be80e1ca1c58a7b17a3c449036cd93ea. 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/INS182403134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380d30adc6a183da2f750cfa53b275b98891c7603cc5ec56177e76e187bb9ab6. 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/INS182403135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014e8e32f78a31291864c11918edceaf61054db64f9fc48cc7f841b35845c498. 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/INS182403136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724421a008af1bd60be3614b7e15762c9540554e3bb4c5aadc7653fea328636f. 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/US39N2400697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd5409461a2e203881308aca286b909939a77155931e5e490762263c42c224c. 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/US39N2400698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfe963de26754f9e5176d45fdcff1e87051dd604f222227445ee468905c62ce. 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/INW262400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364bfeb59f154279b9c198981184c6118cddfbb66bec6e2825e431050ba69a07. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US39N2400702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3a84b05b91ec3968f4a16e28e98668f180df4682f98fd1264de8faf28f4853. 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/INW262400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca5c22cdf2ebf8bda3b2ff828ee158195b057d36e3fede027969de67f778238. 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/US39N2400699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712fdb9b55ed985ba08b7857f6cf74814d76efdd227e74d498343da13539f4b8. 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/US39N2400700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10f9a3235ec552e5401e4c1c3758c10db68ff45b1927840eb440536833eba35. 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/US39N2400701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a697cc634f8368f47800053f9eadac20b3816666a18efe8497f3e587288c87. 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/CHF032384458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091b0665a1358ee35863ff76a17e9137ff671b52c11b4218bc339011a061314f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CHF032402993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996648a321f65fb85825c75f00cd0b51064658a4cf00d41b9b15d14c41116f0a. 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/QM4TW2387846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb266db897008b1350fd3e4f19ec8c4b2e5c97782eeea6ffb8b92b55356aaeac2. 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/CHF032401012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14a7292369de2f706aaa6019ed8a50c7f541da75eba894b8243b33dce759e12. 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/CHF032402995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7be23f12665ad3fb6711d78934b887e71ddb5b73d1327fd8f263756a05ccb40. 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/CHF032402997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49aa401e0df7e758a7bf4f5bd1a2fcf4d7a2c8231ec8ec4fef9974c960f945c6. 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/FRX282269975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc191b3c820cba391b1c83744f6c3d18085ed16bfe6172773a0e0960af1152f3a. 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/FRX282269976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09503a6440b0a74f1230d9cb0654027feba92d02fd270512eb399e516fab78c. 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/FRX282269977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd648337811c3063007ba8cabc8d4f9425cae4da66e3e56d4e7d01c062f0542f. 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/FRX282269978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd113637d0ba5dccbefff3e6db2135516965f323d689c28aba51a4d6a3ecbade8. 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/FRX282269979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e7c5163160bf3b38d8f3912f62c51010e4b68fc0a1a7285fa31b227a7efaea. 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/FRX282269980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3a84b05b91ec3968f4a16e28e98668f180df4682f98fd1264de8faf28f4853. 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/INW262400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ead71838046a7bad3132d1723436b38ea9abc5b51de0d549e2df4ddab5a6a18. 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/QMFMG2328252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328e274008f46ae05f255a5fb3f4ab4059d83a78497ce9c37d11b0bfe803190b. 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/QMFME2346076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e731103be6e821fa4c0567a0a7baa8406b7ab6c91860cd395a7c2e017342c7. 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/CHF032405677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb266db897008b1350fd3e4f19ec8c4b2e5c97782eeea6ffb8b92b55356aaeac2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CHF032401012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996648a321f65fb85825c75f00cd0b51064658a4cf00d41b9b15d14c41116f0a. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QM4TW2387846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb431b1f21d6a84548b1ef0f2be37889f37661d34f5488a9e50f1c0b3ea373b92. 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/FR10S2400985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065a5272df958dd1cdfdc573d8e77423dafd71ace8ff2e7c3afe99034abd50d7. 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/FR10S2371758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad199a8f51c77f3d1fe225bd190a7e3d6d18fcefe21d6859f36c8d370a3d3ea. 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/QMFME2436194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a257d651b5085aa1df3cf47b4a55194fd0e51b9b9872fd874d22b182c43aeb2. 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/QMFME2436195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fee194ab0aa8463e97f90ea8accf8b1240c7d77700e6c77eaeaebcb794881c. 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/QMFME2436196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873bf1de1f97be5a8a46570d49c5ce388df6499c6975a6d9831d4dd426167985. 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/QMDA62497728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0268d54b58638ae945883e94755f683777aa00812d2a6a148d4ccb1978aed7. 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/QMFME2436197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6c53472cf6ee93ec15ddcbf5470b13ffc8ccdef05a898fb04c8bad6b68618c. 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/QMFME2436198.