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 0x898d05ab4b0f2e3444d4cbf2dfcf42a8712cf8d3031dc4ee87b36348d3b3c3ea. 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/c626652d-6c1e-4782-8eb2-ec5ff178530b.json and https://artists.proofprofile.net/proofs/artist/c626652d-6c1e-4782-8eb2-ec5ff178530b.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 0x78fa7afd915c279df98ac5c337e535eb73afe66a9a247d897ee9eda6106840bc. 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/ESA012517427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0e68a1ca6b7a520795d29a3852aca2f0cfdb23c82e4e2ba5c308655aefff68. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:33:49Z), 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/HKG731741193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0099f3046b7134595890b77e898f9e02fe9539681e5033e7b110c2ad500b73. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/HKG732117528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edfc49307c4790a54d421fd2b27f3e8e925ebc086e7e3bf4a1b340ef21c5573. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/HKG732331610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecd549b937e7f920eae3a26487148369a63ac1ee306e079b1ede06f103f306c. 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/HKG732331622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecdfa4a40225accc5ff091f989f3096ac1b447ae8789277394b370745070d42. 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/HKG732331620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe718e7cf308418bfbcfb8b485332729926a9b39b8a11f0e2ab9faa9836c400fb. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/HKG732331609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa0947447c039e7b2c6460bc3f185e03159f4d5add53f40651036b51e6bb29b. 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/HKG732331613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b00ae6426a00e5f00054ac03f60d1703120e5435ba15660e342eae9f8505156. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/HKG732331612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d1a27ead784b9f447fe5d53ffe63096b38375ebdee9faedbcad2f975687f42. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/HKG732233312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332348e0647977a8693d5efad36a886fbe7b8817f90121ae5b2116567ad16655. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:03:27Z), 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/HKG732286043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf261e335095c6a44e17a13ce95a357d2795020361244955dead63e993f7c78e2. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/HKG732294032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe143f0a94fdf00f034b2fc3cf6bae6647e42239569dc080ab0ccb3aefafd9b4. 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/HKG732324421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19e1d890fc7651c7bebe17d0566d642246dce7f944ab5d962fcc95d1504a222. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HKG732324424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fa70e1a9a4db1a2d2a78a63829a4e9f553fd11f90545580f55960042df40ef. 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/HKG732324423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440e4f4ceb84ef9a677dc937ce2587306c1c49fdac296cfa69df2fa8da5db0b8. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/HKG731648795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5121d3168a6c961f9f0fa2a446c76c89219e1a5f5f6318149d89e348547797. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TWJ012302902.
我無法做到的是 為你寫最後一首歌
我无法做到的是 为你写最后一首歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ba692ce65c36753c1c2fdf30d7e72985746100faee6cb0a1d6bafeab88d45d. 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/TWJ012302903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ec3b5a3eed967621bfc73cc175674d1e05231f12e32d39bce91f5a9896c20a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TWJ012302904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b51765f067ba95ecf9cf983c635f26ffe24454c67550f53a2559851083af525. 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/TWJ012302901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c073fe2c58431a18a6b92ee1d0d433c20dfa2f533c9f3c8d51d7393f5c8830. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/TWJ012302905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb798d6e581d48af4e65bad5cc7af677996e771413cee10ff41f8cc167ec4b118. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TWJ012302910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bad027facf4405ece3e43e5a495021499eccbb8a896e35901a8e8ab15f877b. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/TWJ012302912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac49ccfa498b2c3ec33c79d3f1c4f1280111ef608e21d692025ab65a0d8bf41. 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/TWJ012302913.
我无法做到的是 为你写最后一首歌 - 伴奏版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9eebec661b72902978e2f95fe338dbf9da528a9bf337ab50006e5a614744637. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:11:19Z), 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/TWJ012302914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c073fe2c58431a18a6b92ee1d0d433c20dfa2f533c9f3c8d51d7393f5c8830. 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/TWJ012302905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2043c4988a55814d0b2665e6333a115553f8f7cb3d77255f3dda45a793b668. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:29:48Z), 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/TWJ012302906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6bbb6e9c715342454ac9873a8f326818ebeae1d9129cdb1768c3a543ca7045. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/TWJ012302908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab746998a8912c38a51f9586f6e5e099f23573bcf14bfbad2e8509958d8ba67. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/CNZ632301291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefec7e71e6295e3bd0bd5990ee52144e53bb355a6590b191ce5867df24be9cd. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TWJ012401307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e233395df900467e497f1b4eb868ac572af0998127fe6b7c9244ce8613e59b3. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/TWJ012401301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6296cd3917cb45d6a01a6d0d709a958f99bc791be69f3acc70abb87612e8d4f0. 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/TWJ012401308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a16fa6f092b9ca80117f5d0f9f457350a88ce40ec41417e8f61237080bb0d7. 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/TWJ012401309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35690bfc69ca9df28dff9a0d09b82b7d130eba75579fdfb6dadfec7d10b2dabd. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/TWJ012401310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd979e20bbe341762cadd65b336c606b27a35e81df81ef433e23b11ee62552b. 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/TWJ012401303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1539804f34e286e1e3ae881f0837be3f033e83b7c3cc1a94c41e6d1776bfc626. 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/TWJ012401305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46a72d0533ca00aec0c63cedc95f8c8e4a7a512dd366673a5d6e5bf5962d279. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TWJ012401313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d7f39ffe32d0481bb6e1f80b348a7aca52301ab192ed345ea7cba7d24d7085. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QT65Z2593386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cbdb7d85de3bf948138a1b8a585983b4768628ceb296f3539a276a84e713af. 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/DGA082288759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d9fd1013c8a2413834ecff4be2112d70e64dc8c8cbb47308c2a9fd0ddda940. 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/CNZ632201039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e27dff949330b28c9edb8201400d6ff70ca0a2bbfd5f70186341fff8a7f7630. 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/HKG732292141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838cd1a001163f3cc21d9cc82a29fbfd5a4f7395b4b987ff0ae69f97d9f89ba5. 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/SE6SA2478531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b919b13602510902e84eefa2f8883924dacdbf8124c16cd0dfd427cffd2ffe. 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/QNSM12402251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0262997aa385994c944a70ee5101cac0e553fff28c62695382f8c0c8418a91. 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/QNSM12402252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87164937edcbc362873f76f96af0333e9663bfb47a2aa9fdd7942ff267cc08fd. 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/HKG731401543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc014d7f5c4972e910a33a649c264cd34a9d9b57d26042f835165ac5659215b. 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/HKG732313800.
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