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 0xcbfe8ee4df2ce70c7da77e685c5b2be770adc11302638864ef5c67fd3eab0968. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19aca428-af7b-4ad3-b60e-f528be2954f0.json and https://artists.proofprofile.net/proofs/artist/19aca428-af7b-4ad3-b60e-f528be2954f0.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 0xf86615bb87bbc062c172873c19e22509d4c2e9776bd237297284a98a697a6e1b. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/SEYOK1210058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72eb1ce2d22c4d7c62b8fd8b6a5a89ddc3850cb4b0c42dd5cdc95d9c1c3f16bb. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/SEYOK1210063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4e066dba14fafaa8b36928c3a70753c714e3fd964cc75870ec8834b6562d5f. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/SEYOK1218821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41660367453a3e5290a8b9c4269252d30bb7f43233e0f9d5e1fddeddd923a43. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/SEUM71301885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6455dffa3b649bbd17dd7b0b32a62f752ed32196b5adf0ff45728c0b89f5141. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:44:54Z), 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/SEUM71301886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892b005a878ccb1759d39a8dd5b901ad1825f94022b1d930d0f0c73543ef50cd. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/SEUM71301887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400d88106063ec62b6c18cfb8d35cbf70c744135664577575c64411360a9c290. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SEYOK1425366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7378807831e727dcc32e0625cfe22c9ca2d8fd7000bacf821fc8a2f8beb6bc8d. Chain 2 (Bitcoin): anchored in block 957895 (2026-07-13T18:41:29Z), 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/SEYOK1425367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee01b337a123b25c3f64fb39eaf11f72793eb79d1441859b2f3817594b7f863. 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/SEYOK1425369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4947790d1c26c52683943884e0c521906acd54ca5d50d8aaba41177ba7622bf. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SEYOK1425371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91a5793ef897812711422c45309c16e54924efed15e27322320623368b4805e. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/SEYOK1425372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8315c070a718ab337b2893994267499d36ceb677a6b23ab2eeed54d6b65ad0. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/SEYOK1425375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafbd8a6395868acb58680c3e480bbdfc4f192f80bf157434a825ed0df48e75f. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/SEYOK1527326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91f3cb5451b7d3073bb490952f79f053cf6475812684ac9f51e3c7026b47c0e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/SEYOK1619758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03568aa2ed78306914b9a6322049e327c2b1f9f184526d37b772537141e7430. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:31:44Z), 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/SEVWR1701801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9252a96ee93bfb3477dcbe3be24227e93f7e9e8c3b5911519f35ef1166874cd. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/SEVWR1703501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85cbad1742212d9751a2379adb1b2d23c24919245d9217f139e168116b8f82f. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:19:39Z), 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/SEYOK1804605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3ac66a1a00b4616c9aa9fedba4da967fea44b5b437e65dabc2519cc3a18a38. 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/SEYOK1829990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0311845450a88b24df88c13543e23d38ea7c16ea58fb0d30c96be507693684a0. 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/SEYOK1813254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8dcf94989c7702a407658be760827786bf7a8a3dcb84ef75f2811940ae3f8e. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:53:29Z), 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/SEYOK1829991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85cbad1742212d9751a2379adb1b2d23c24919245d9217f139e168116b8f82f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/SEYOK1804605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70d8d643a2e0ad082f4d1d786c061a0fd9b21f560bea6037ff32f7bc90e1895. 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/SEYOK1829994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2a465cb9ef7ca9c4be895b241e1c11e5b0c8df284a22935525ba86959386cf. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SEYOK1829996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54da964c1c152c8eb736118f174a4a3eea734798b47b19daab6ef01b44e47d1d. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:55:11Z), 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/SEYOK1921438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe993341fa2222c677e42219e76580aa0550020d1232d27b5fbf8a04774c3ac13. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/SEYOK1949404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bc881f06190f53e6a544fe1ee80aa07e5fba10a970371db21e9821ef330291. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/SEYOK1901219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36b791ef562776c65708052ebde42148da7e414f48e545e1183aa8fdb369aac. 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/SEYOK1934201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392d69626347cc2bcd0606e52ee7d886f0ab2bc003c348c20bf160318a290a8c. 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/SEYOK1949409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cffcc4cce55a3da8a3c1c6a552f3bb478aafc0be484ec05935ebca48b77111. 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/SEYOK2155737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefeb3419e175d9c4b9f0c1e52045e8f771a36326a7e99a4bfbedd34923d03bae. 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/SEYOK2120157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924994203d07267c4ae8b663a154a1b975b288f3b27c62d27a2872597ead5c91. 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/SEYOK2049899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ceea70b02894dd1083260255aa4b861d2562fe9536b30680e007ee699b3ffdd. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/SEYOK2305838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53dfa888f2a1e496bc6504f11da1cc695265019b2b30e6a44e392fd3cf0919a. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/SEYOK2422935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92bb521e1ba6dfd31e4006acf340941f0fe15754a4df18c9e75116cf3625cdea. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SEYOK2301227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09df30245a412c09cb9b85c5984428981c9901ef512af9cad19d84bbcb891694. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SEYOK2404692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb932e93357b5fd5175ec4bcdbff46a12d7166b77e1d4c27186214398293af1. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-17T00:12:27Z), 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/SEYOK2428916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2766c0e9e3568aa289abf6947b6b7df14d7995d5c53594e552efed92b2bab0ce. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SEYOK2408076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5a66fc1dc69cf4808ae9795250ca83fc26ae2411f94ba51091e7dc403e8ac3. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:40:34Z), 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/SEYOK2428918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c965552d4aabf5b744f4bb1c5964923cf57cb4b211026b51555bd1794ad3872. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/SEYOK2413793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07d1e5671d617d6c83dbbb19d7cf1227a6b4a14945ec71f2ef1cd9927277643. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/SEYOK2333701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533b0fc935ed5c22221c6a85db13789bc02d477d75dd11e95a75499ac209d0c3. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/SEYOK2316581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1c04a25cdec83e81111838931622901ac58f32c29f12ef7fcfd39614dd71d4. 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/SEYOK2428917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe908041397e7f1455b4e4becb12696f1b2d98b647613fb0b638fc8a9d9ea192a. 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/SE6SA2438059.