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 0x2527ec27daaa130a33293677d9673a183c003a5ae2b52ddbd13cfb565ad018bf. 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/b1174fc3-4773-45ff-a5cc-31f13aa289ae.json and https://artists.proofprofile.net/proofs/artist/b1174fc3-4773-45ff-a5cc-31f13aa289ae.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 0x10052591ecb209ec94582aa4ac39e665917c505e6a5826582f59c1c349be6c5d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USL4Q1937028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd379da2fc0b9dd4b2aa64893fa7af7a1df7edc193fb01413a815f1fe781979. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/USL4Q1937030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fbbd87b2aca9b8c226aa5e0a3452be1d3c07a5fc45c58b466bd8bf1ffea51a. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:35:50Z), 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/USL4Q1937031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d9f6ac8d7be9f9d2587da81dd64a8db8ae4ef96f84b1e6cb5d9faeee44bcce. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USL4Q1937033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4850c6385009e34c5ec3b9d49a5d21ff566c9f96a86cd8e88f45567fe277590. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USL4Q1937034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2f3ad57567369da6f827afbf28455607a34ed954453ccfe369f3a9db7c832d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:15:13Z), 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/USL4Q1937037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7aac07762f98334c20394521e9fbe0fe328bbf9b7fe286d760b1de86fb4a0ef. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USL4Q1937038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e681dfc536d4fe9b96a97ac78c7d860391de3be68237413ec1eb65f7e00d5e. 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/USL4Q1937039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca1dfc36842593bbf27a42ad4bcdc9a970533e0e78fe547d8c30d7069111faa. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:43:00Z), 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/USL4Q1937040.
Hayatta Herkesi Anlatan Bir Resim Vardır
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5e1aa5b7a0dfd8390ef6d07e3b28ce1fb650bffa49aad067f673fd91d378bc. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USL4Q1937002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0805f8eeedb9a4f2e8b7df8469807b78c5fd71433494c3827ae4538e7d0c2502. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/USL4Q1937003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bc06adbfbefa47a0de585abd240e0e10bee4a37c1cd44658d7904b06b8c75f. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/USL4Q1937004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b481c7e89d0d772287faa4008c026bf42c8c7607af1cfefec85a09f57352a7f. 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/USL4Q1937005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff34aea3bc1509d0f68049582ec1abcf277f15b9bc1bd14a2779ef7ce4a465c3. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/USL4Q1937006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6336d580cdab285a76b2c4c26f372bb7dfb1545144be8129ee885727105f6d. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/USL4Q1937007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10364074af90fa377ba4544fac89f21154c6250fdeb1af4514e9396501a99d6f. 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/USL4Q1937010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c1b6b161dd03a8aa7bc981f2a5312f76f2117e0455e006ee358b37ac9d59cc. 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/USL4Q1937011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2ca455261464e7c9ce467c14c92b5c1b99d18ecb5350ae58da3c510c1b2518. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USL4Q1937013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73daaa4c2909c187b9a2215b88e958828a44cf21f19339158946c639ad1250ec. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USHM21703029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af4dc03a8d080dfd5a89aa7ec0f8447352971aa6e53c090f983adbac21e90b8. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USHM21703031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7228e8ddc976e4d5aa9eaffe7f6c6b2fe92a3b3873d48ca662b22847dd5e2cc. 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/USHM21703033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ce5da45a19546c6bdb9cd409b4f56cf92032a0b3f28cdf4913b299f8e29108. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USHM21703036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad335982b8438fabe574f815f67dcd0bf447a8a1add4f33a286988dd44509c1. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:46:38Z), 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/USHM21703038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb077c6d1556711b9cf053d9ba72ad436e62f5673932a78b65682131db7d2261. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USHM81700446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e0b6135f12df2d6a82e59753dc2e35a28430728b1e7f6915e2288c3f699305. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/USHM81700447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5db7e45cf96ae634b0ac10005138d082caa9049dc6da4e9f1c3265fdb2bb359. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USHM81700448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a1c17f08ac538bd2117a0b4c2a82b4cb2d8bd588e85290b9c9962d232658df. 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/USHM81700449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e786b9f52d9630eeafdd05bbb46f81cba0fdf8d86680bfa0d7d1f888b0d923. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USHM81700451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d54b5a92853b2d48012821dd87e41e501229bbacac889c7ea61a82d9a71b86. 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/USHM81700452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9d5f410280aad04b591c9941b71e0d9972965ddef0f40d2902cf3eadfcb7a7. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:04:44Z), 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/USHM81700453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a3a86efec96eb716ab32b0b6ea1d25185ddec174a20ab66168cc2c4d247f99. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/USCGJ1610535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e0e46e9b9c1d2fd3458f0d7ac01150f7b658335d19dfc4e2d92de6f379f663. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/USCGJ1610536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c87ecc0c0e9e1d24fe5fc7ba30a73e0553fb14cf340d1e19db8e174736ecd5. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/USCGJ1610537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944f29cc07d2f991a99e57e64cc60b9f9bfe62452a2402a5eeeb9127d510ad8c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USCGJ1610538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3b5fe6c2e7c11e330d269d25437fd06088c315e9ca2b1e02d53710a8b8a8b4. 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/USCGJ1610540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d96d83be491b366c8a14b2ccee5310d17ff859fe587aa93934697594b64d2a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USCGJ1610542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a9d08806180e0fa8936ea651f95cbbcfc3d2031ca3699ccfef46145683a0b3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USCGJ1610543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c51832b993c2e51e3069cd1e9a4df8e809a9a3ac2855b8b7e9b715818760a5. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USDY42300218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2dabbebed54f2c812f936a2b49216b9d86e0502437b4071149fa640aace865. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:09:13Z), 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/USDY42300219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4a84a601edded5d5324b8a066affd65708b9d61649ec69bbb4c9e516d5011a. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USDY42300220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde83f0e9e2842968d35d647df33f51cef96290ea7528a0aa1077628f4c5ad706. 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/USDY42300223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da86a82c281b9060f81325d23fd1735faeaee64ceb4bdb93c384cf920c1030c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USDY42300224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7369f10f247f4cac1b57b4f78dcb13ecc29b96687da06a308dc22fc16fdb12. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:22:05Z), 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/USDY42300225.