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 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 0xc1c4be02bb3cc631bfd39e7b758382ad809e5c9e07eddee1c44074eb438dbec4. Chain 2 (Bitcoin): anchored in block 953707 (2026-06-14T23:22:21Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7cce5ded-361a-47ee-aee2-09ae1b3ba77d.json and https://artists.proofprofile.net/proofs/artist/7cce5ded-361a-47ee-aee2-09ae1b3ba77d.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 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 0x76f3670925ecee1f91f108a6d2778bc0169aa4f06c80964a6fbb289d54001491. 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/BRVR10500397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456dbb3a97c694abcbda69402de31fcdc796bdd1130027b22a68296c0a97b234. 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/BRVR10500424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f6b2f8b06cb95106d3fad9b1a1227b2b003cb1486125041cb5a3d7377e9b91. 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/BRVR10500693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2f9539c4331950f42cb9a8d340067189ef8b92ef12573a98f4bb74d9b5a912. 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/BRVR10500752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e431fb181faa7e3d78b62bfdc0cfd7b0f04f90aac3e61909eed7f5a0957738. 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/BRVR10500904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc444862073b584728cfd2fee1b6d26e76cbf0d4b50b0e93591a0374bb391540c. 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/BRVR10600130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52675ab9a52b1cb6cce1401ee29b1e46268b5c9f7e799c37aa51c1f45fd0f7ee. 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/BRVR10600174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe233a2d766a67feca266b1fda16f447f0a3fe5b9812734ff3056f140a6184ac4. 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/BRVR10500929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cfa9f328bfe8bd76a414b5464ee73aad0b990a346a207ae1dc96fef65bd972c. 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/BRVR10500917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4922a1355297fed7865f7b2bf98e0adf52a89c766e98dc862c179157107fc70. 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/BRVR10500540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eace16cad38d365bd461e101352dee1ebedc78b5f5a283eb08ed7691b6f8e6b. 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/BRVR10500303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb01e93622cf5862b096c0ea76d1f4f5fbb33f090a3816c92f8e2bf186f7227. 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/BRVR10500681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151f7e9ccc813c92ff054226a7234d7097795fd35f9e9d9002e2294ccacfbd23. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/BRVR10500408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3d560d16a4fa8c18fc611b2957f5f4ddc3f6f3b30a78302af713f962eb60f4. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/BRVR10600034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb21659a599265460298688a62f50ed0f0a598d0c273d2914a9c78e46720c69. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USDY42152640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9e34836a628f68204f5841f71a574ba4f7da92f9cecd5a70ecddaea8e878d7. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USDY42152648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11623ed71735ff045fe62f10de4f79661904fadaa77dbbdec96123a964e60f72. 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/USDY42138092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f238a10a1a707111b49a9da0314ff60e3065db9f28382b81de11200f944fd8. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USDY42138094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2387231e3bddecc08575e05925289d299ba750419432ea4427c78139f696d8. 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/USHM82046096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aab9e8b055498ebb725924d696e389ef6157c9350d4ce64a57251ee68d968ce. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM82046097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d971b849f34855de41d332b42a9e447151bd729d93ede3e795070adf930fe8. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22094328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f6bc6e78842f0392953ee3f892d4c30a2dabba9b88b911d938eb3b492735f5. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BRACT1601715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171dc9a918038984cae4411df6a2e42f45f1c8b27f0eb8727d1fe533c564022c. 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/BRACT1601718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5a1f90e3ce11730eec002059ace1c8638bed5a3755ce7b208c03b273c24af8. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/BRACT0700765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf051c3455ea74cce336028f1bc7f8808f627e9d85a65d7e97f881cca5d5d2be4. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BRACT0700766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfc1c812e3fdb91a566dbd88c745a71b609a218b92015aa837a9a46709ae857. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRACT0700776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19e048f9a763af3402cdd207c15a8214134f29bb59d1c07dd1ddde2e12dbb02. 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/BRUSA1100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8a3fc0b453fee4764e4a5a884e65af420eaf0f31a4198dcad98e14dbaebf28. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/BRUSA0800245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c67d7864186a22b4f8c4dde4c2aea04e97a858d214adcd910e636dd0c50ef8. 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/BRUSA1700979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7080f04e488c3507f039fb0d451222e9acdd1764182a5eaa9ca200369616b3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2470853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa8aa3916bca0082be8f31c310cf4369c585ee1ae0fd0f095c606c43740f439. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USL4Q2324492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde60655bed2b87c280e7780dc53050c8ef9acb60892742bbb2506667c38c15df. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2116874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265fa92e6842ce1e13e5d1a3429657ea22b6301d65902580931b42da5b7ebbdb. 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/QZMZ92036635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5714cc13dd480c080592996f41582a2ce30faa6b6fffef205433ba78d42b38. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BRTMV0800076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5a156ca278f9d372d093979ff6d77a83e77d67a2c3595b35bac3a4f5aa7dd1. 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/BRTMV0400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72cf90cf6abad4a5688c4b835a28d3841c90e3ff4e3a20347d2ffa22445cc81c. 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/BRACT0300749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa12c72292d8a9805d778d874c98f82d1a2b4172096465677dd323ce94b4743. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/BRACT0700924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c1e4dd3b27bd64ee601e361ade4aec1e1de80220a5324246576fa87d5dcfc6. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/BRACT0800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfc1c812e3fdb91a566dbd88c745a71b609a218b92015aa837a9a46709ae857. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/BRACT0700776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf0ef22423cf86aa90cbe1e03834daa0260c38a32d4349654923aa098867ccb. 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/BRACT0501072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bdcfa1532e84b42b96d5dea7e9070da251679c43d0af1093e04fcb70834da0. 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/BRACT0500900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02a27af1f447628be5bba8fc265940b648f50202cf755d2bbbfba1ca49867ed. 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/BRACT0800091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7db95fbd941a6b72f274bca78e615c95d6fde59296763992d13619ddd2a063. 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/BRACT0700770.