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 0x89c311e357eaf4dc50a14c56f0c59cd3ece42e10eec1ab63009358927971eb45. 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/76a13f85-fbce-428e-8905-e02cfacca63a.json and https://artists.proofprofile.net/proofs/artist/76a13f85-fbce-428e-8905-e02cfacca63a.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 0x3bfd4ef2e1f5ed8e429e558795464ca26b1db609f707a72e16c4a8174030b888. 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/JPFH09301690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a16b2a0bc8799f77a049b2189def9f6da98049817d08a07bd86dad7ca4d4b8a. 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/JPFH09306750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81af51b16773fdb1523210f901c5ce071dfc2083b051a0b68d1b378108018439. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/JPFH09307070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56815f6aa7d96f9816e136c0e50943a6a82b88fca03b4e95382f3133725e1257. 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/JPFH09304150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae5887dce47bb7f75b62f3b1d0add9eaefed00d7482d57e42704c12a22658e1. 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/JPFH09403330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f054a5baa51a30b39cf80fea41b3db2a3b458275ce7f1bc987c76201e0f5f3. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/JPA800200141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e52606d6654702eaddff20e6798dfa9f9e78469fa6102f3719678c9c8df7f7a. 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/JPA800200123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaebab4296d8f762eca8a9d63bd14e7e582872821d2d865544b18bede5e8f3d98. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/JPA800200142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8482b81c2f7f02b8474c5b1067fbb8da9378566fb5618194c25173674c6a4b73. 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/JPES00202185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58cf21d2a6d599885a1a014406fe9cfaa52341bdf7e0e52fd1602b9b863de84. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:40:42Z), 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/JPES00202181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988a7b3106e33cccaaa6887a725cff74675dc5930e5eaeff16545b19e557c349. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/JPN300700726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c06890f03a3b3abf20e5ff96747639352a2d8bd648fb9549f7b1754dfd30a3. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/JPFH09304910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e50587c923b2ce55015bcab520ae5d6ec8de6670b1d97bb2ee22558adcd135d. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/JPFH09304920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc935e8f5818d6a79a69b5b84945ee5511d97506e383dd51b4d3f43922301b29e. 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/JPFH09304930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8161bc20cdf6d88305200a0b91fdd236592a323a362306d18f3621b2ab611a3f. 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/JPFH09304940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8bf58fe7a0c0a3844d9352c2c9c567522c7378860e3e8c8c06fad1a77356895. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/JPFH09304950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8bf84eb7fbb513decd3cd981ec3f65131d3abbea791e31f7cd44fdd3136345. 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/JPFH09304960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9623d329f087a691ebb140b6bf57f84858d705e3ea16aaf7bf88b9a6072ff0. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/JPFH09304970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d1f464ec724e5320f7734af179f5e62ac1a75b020de9e912cd7f71483bf70b. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/JPFH09305010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6cd2f6eb5c279b03ad306f405e37d1b8727a3da241fa3c49046263b1198d7c7. 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/JPFH09401440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171ca40980caf2cf55c473be4549dd8af5e0506439bb0cca0c5f23dde29b0bc7. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:53:53Z), 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/JPFH09401450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d492c1d4f1d7c1417ecedcfa25565f145224fb78679f5132bc0e4c1d1f0a675. 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/JPFH09401490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca915f0e649021d71c416c1a160cceb188c7f20c2900f4293fb5e45a88cf53c. 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/JPFH09401530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb4367314557cecf5d53e75ac24ef589f093ecd10f688c35c6c8490944e7559. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:34:35Z), 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/JPFH09208590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a393853ffbb32d21c4bd055af9bf20cc4f46158eddbb76b734955869b3aae40. 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/JPFH09207010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cfea39ae351e05538f6a691a41be7ab277507bec07824c56e9bac35f695d09. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/JPFH09208600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6422d171147cbb35241c222b80c66261cc9007e01998ee05bfcc191240058389. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:09:57Z), 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/JPFH09208610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23eee20608e0f8bffe823f66b4ead5767b2c8b225e97a9b10918da1f3d415c5b. 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/JPFH09208630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8979a96817952086dec9a8690ac693465e88b436744b9773263c24ee482ece3. 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/JPFH09208640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247e0e4f61c65f164f703178a744ba24658bb3ac06929afad10b8f0a95e7b74c. 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/JPV701500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae4fc6813c007101beb50cb0c0b0b8f0875fbe2edaff3ed0faae282b19a8d08. 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/TCJPC2426892.
Knock beautiful smile (Complete Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd695392dcc39d5db3310d61aa4d7226d0e831b35ac8eefd6c77faa4066762167. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:53:01Z), 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/JPU901703738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d8d19545d5f0adfc6e8aa7a53f8e3ffb281875e25dfe27c9df8887b0fb4632. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPU901703739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe848785f1190f8a3ac5f590744f8a12ce96b5fdadf4db97d476caad5ba2d443. 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/JPU901703741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0664035d0f92b0aa3af34a1da744ea5e72021108d361da24a1798fe936e89289. 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/JPU901703745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d472d054e0d008fab7bc8b1c88b6fb075892d9ad3781bc7839bf910a3dd5f4. 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/JPU901703906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08bf2e75955bd7d7b0672fbf03b413b0370e76bdd13e1a061e70397a0cd85e8. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/TCJPI1965367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ba39b5dc27e18e190e7a52e96e466c333d2e163a8ce81d8b2650feb78e3017. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/JPV702000024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb7e043b720074ff9129f3b7214f84fb93e121d8d3d398132b1d57dd7f19411. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/JPV702300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b915e466d2bd942dff9e7a4bc9e1593fa9cefb58a1fac59f55297b790eb09e. 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/JPI102401572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9e52be050413b17a34bd188efe935738bc77d5f0759bea327cbfba46aea81f. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:29:50Z), 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/JPI102401573.