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 0x61699b984814d7bc12facdec814d3d9b1c50bfc3325f972aea6e7b6aac32582f. 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/4f7a3057-1c33-4f49-9895-5d3d12769caa.json and https://artists.proofprofile.net/proofs/artist/4f7a3057-1c33-4f49-9895-5d3d12769caa.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 0xa8091dd7c5c19550712e21fa4c8cfa3563c998db6a24e6388ac3de45e5f4db70. 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/TCJPK2051922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee6ea971f151c0cdf2514308dfd2182bf3c8cbc1d7805a24ea4e2bda2f0871b. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/TCJPK2051909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8091dd7c5c19550712e21fa4c8cfa3563c998db6a24e6388ac3de45e5f4db70. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:35:57Z), 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/TCJPK2051922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc417baf0c73ccdeb34060e09b7030677892490d6eec965c375d1ff7d4460bbb. 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/TCJPK2051941.
進め！ラブリーアイドル ラプリエール
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a5cbaab494a5441833aa5d3da8daadf7af34a7e5768b41a2777d4235907a77. 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/TCJPN2173212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b8818f62c468a3c3316137d264271e048c661bb9499a433a862ee13d28ab64. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/TCJPN2173229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1ba4c03b338c058603f451da8beff7ff46b58583f47fa4348f0c42a8d2f6ca. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:07:32Z), 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/TCJPN2173209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a5cbaab494a5441833aa5d3da8daadf7af34a7e5768b41a2777d4235907a77. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/TCJPN2173212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b8818f62c468a3c3316137d264271e048c661bb9499a433a862ee13d28ab64. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/TCJPN2173229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f9107dda7efaf03ad73a11a2a4c6003b23a23ed6108f2e6f49ee4e8f093328. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCJPP2183163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd932ae29c25bfa1cf8ce9c1dd2b8c8362f78e431cd28238b206c8f17b06ce4a1. 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/TCJPQ2109921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd932ae29c25bfa1cf8ce9c1dd2b8c8362f78e431cd28238b206c8f17b06ce4a1. 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/TCJPQ2109921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee9ca787dc43bbef20f7be8702bdf176edb841789feb8331d34a3b6f87de0b4. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:50:33Z), 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/TCJPQ2286821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee9ca787dc43bbef20f7be8702bdf176edb841789feb8331d34a3b6f87de0b4. 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/TCJPQ2286821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a29543d8eb9bcff78b689f10f8be4a048a475697fc85d2cf9ed004828f6d1b. 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/TCJPR2216710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a29543d8eb9bcff78b689f10f8be4a048a475697fc85d2cf9ed004828f6d1b. 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/TCJPR2216710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416d8b45ccf229613a8172e18e643a9a266414310db0bd61372355d0d8572ea1. 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/TCJPR2280444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416d8b45ccf229613a8172e18e643a9a266414310db0bd61372355d0d8572ea1. 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/TCJPR2280444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52eca5c0e285154fc822509cf7dcebbd73704b644f35bd2ea43744846ddf0f2a. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/TCJPS2279119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abaf7a8865b05ae91e21b9fa05b9aba11014ea128ed26bb7df543635a430fcf. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TCJPT2203226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abaf7a8865b05ae91e21b9fa05b9aba11014ea128ed26bb7df543635a430fcf. 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/TCJPT2203226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7850c00e8c836d75549092b8c8bdf0ef59ce13c267f8a4483b7e2a36b687a0bd. 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/TCJPT2240796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3a19f45c301e40b29e94efc00200e34dd8c67c520d3375804dcbb03822b52c. 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/TCJPT2277734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3a19f45c301e40b29e94efc00200e34dd8c67c520d3375804dcbb03822b52c. 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/TCJPT2277734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa378a9c5afa2210077ad15673eca0c314719388f4f146dc8aecf4b77190c5115. 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/TCJPU2210765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa378a9c5afa2210077ad15673eca0c314719388f4f146dc8aecf4b77190c5115. 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/TCJPU2210765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58e58f0be0e33283e9199257efbe23a772b401374da28e822d31df5b35ce62a. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/TCJPU2352061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a56e044b14e3de0703d754b5ad23f1a659686434ea1bc29881da357dbe143fc. 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/TCJPU2388607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a56e044b14e3de0703d754b5ad23f1a659686434ea1bc29881da357dbe143fc. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/TCJPU2388607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ac112069a3945a017ebc56d0af6e5558ae02dcf388f2ee1df1924c5950a348. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TCJPV2321168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffff6d5c6177d04085ed62d255af29522ae36f8bded915b5f919c99ed3c4984. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCJPW2373274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc0442942625f96460f946a76c4c3d0435e71ff11cfe585f42c84b511bc3fb0. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/TCJPY2320336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269f2c9ffaa58a1c865275dc741dc4aa14ec4449e7643e587a8bf5348531f454. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:06:31Z), 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/TCJPD2418415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269f2c9ffaa58a1c865275dc741dc4aa14ec4449e7643e587a8bf5348531f454. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T01:59:30Z), 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/TCJPD2418415.