1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb1e06b6d3c30e981b3d629c4aa4f5a578f042e37beb3630210f4db3fab1e0a5e. 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/70a78c91-72fc-4e0c-a800-00d1b3aa9b35.json and https://artists.proofprofile.net/proofs/artist/70a78c91-72fc-4e0c-a800-00d1b3aa9b35.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 → block OTSBitcoinBlock must exist at that height 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 0x22b5997a09700b465509c32230a6fdcda5dd0b16995c49f3a6db9117e1b0ba30. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/JPTO00200815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9f64d2db13487d3514b46841e9299e29095ffa227b1f4ac960d8d0194cd33e. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/JPTO00200813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce2ea34fa806229087b432155b83c65a7289a037e3132f5b9373fdf6c9149c2. 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/JPPO01903190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e683f0bd42c5e35767a65fa01d7a6493361a248f2b2927d95421692196b8cc9. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:05:45Z), 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/JPPO01903192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3980bed68c70138a5cadf1e16925236ff64c98727d9a2764ae85fee46eca0591. Chain 2 (Bitcoin): anchored in block 957611 (2026-07-11T21:33:50Z), 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/JPTO00301243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc60378eb99b9ffbe26107159b11cbd28e183c4ed2b471d5caa198b413a14049. 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/JPTO00301244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593a6064ce38c6bcf6aa2eadef3b1febd30c5ac7c826a9bfa9e5fa0586b30d54. 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/JPTO00301246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b686bd22110ad2d67811c4a4f45b2ab4e6f10f47e21e4f67a9942c3f211ad68. 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/JPTO00401309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a6c1c77124343bd9e67fb35ad5a676d80e3b0940b17bd99d484808b4045948. 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/JPTO00502638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabb7a692712e7b00dda9dbef7a4f305eda8f88ce76f48a7a3f90b70023cdda4. 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/JPTO00502639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214089d46dd3e3b7ac2df0413f62038ba3fe377a9bdff5a84f21b7f13680e33c. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPTO00501850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9386a5540baf22f038f0c99023a6de70f8ea6976604873997a6d89c62c63b8. 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/JPTO00502640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84f2366d71550aab9ed1a827940b603852710483d9a795894b0c916367007fa. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:38:58Z), 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/JPTO00700578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537881e70595359d90d5514d622daef5843a9d77dc1914925138d6660208bd7a. 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/JPTO00800041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0e8c32b90cab850ec3f34c4df27188f53b017d06d990ba6196de24b8999385. 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/JPTO00900835.
彩-SAI-(前編） [前編 / fragment of terra mix by kiyoshi kusaka]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2cc6b30bfb833a4f8be3a16a7ed849eba8cb4b2186fd9e78397eb1d09ecec6. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:08:08Z), 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/JPTO01001449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684270206b5346aa5002ef7d8ddf7b167d38ad0babec41f73020f0da52b7103c. 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/JPTO01001450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa542ae22ddbae9d320b5c4af8c5facdb4bfe166b287af1b8faa9b2acf51cc638. 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/JPTO01001454.
Second line & Acoustic live at 渋谷公会堂20111013
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b7f786f5e4c2715484b79448b5f0904a43fae9b28882e2be5ce4bd2ed5b792. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/JPTO01101703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f48b290639dbcd0e475ecaddb5ac71a4c7c42d7c19b0a5906b41925c65694fa. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/JPTO01201884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b32ec171f5a6abc0436d19d9029f9fb2940071e8c419274b535d9e47a09d596. 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/JPTO01203456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5852e3c084aff3b7f84721e55467b7eeecbc3540c51200d6c4d3314f09094ca. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:35:29Z), 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/JPPO01354266.
ACIDMAN 20th Anniversary Fans' Best Selection Album "Your Song"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa450313c9319729349c97d353c7f5a7f043ff949b96c109aa0ca56f6194ba2fb. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/JPTO00400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e592ec4e59301dbb1a51c98e11f581c4da85da82597d28eb50377c71245420. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/JPPO01623141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7637098fe5a521e9541bb6c6e20a533ca26ef0ba09d8a74cf5e52649054f7f7. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/JPPO01706293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f6d9718d6fc0ae0d9badd100816d0196014dbdd46cef25b50ff21254a296d1. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/JPPO01706296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a2875f22808bdf85b1013a7c6adbe74d9bb77c4642eb3613e4ceba2dee3bd5. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:35:24Z), 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/JPPO01706297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa512a84b3b6128badb9c0ac82fb3e322748fe6daa78860004a898367b5cf2b97. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/JPPO02103914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe971b4d00707b84795cbb876c947708e834f61135ffef964a6941267406561c5. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/JPPO02103915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b6467ad4e1b6fb93723968d9e0f3175f49537eaf2f315438d7cfa2b62a8d62. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:04:15Z), 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/JPPO02001011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3a5b899d063f4049ef02eb8c93eed479a8c310c4de067942b436de4b654d76. 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/JPPO02103917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfab5fdeb7667f6cdf4663b6a369c0dc15b2ddfbafa8ec405bcddd9f810fad22. 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/JPPO02103918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193d9d6450d6634744e2cd9a9d6e85a366b40ec1182bea0a29112e58d741abbc. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPPO01904463.