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 0xffed2e600ba86829d384cfe75bdad4d25937f94bbfa0b8a6ef01d7912766bd3e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/faba35db-69bd-4fd2-aec7-2cc4d9b7f228.json and https://artists.proofprofile.net/proofs/artist/faba35db-69bd-4fd2-aec7-2cc4d9b7f228.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
キム・ヨンジャ ベストセレクション～情熱のバラ・北の雪虫～
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 0x393528676cbd25c34f6e3ffd13b4c6e31be0c224f8a2e0872cdb987e6d728930. 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/JPCR01101930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cea629b1fc5522c437e2dcf3a3e09caf7013f11a5d9e7807707355fe217bd29. 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/JPCR00704380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a8b027561068ae5a0dc0bad4c9385aea698f6b161f7bf2a2242509ddb08cbe. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/JPCR09510720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x727a770c219b06a834a4b3845685cb96360ad67d36d6721807e6eb1362dd184b. 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/JPCR09706560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae60c5be7543b7a8bcf9f53dd9648a6f546c1467430c0276a5967b497dad45ca. 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/JPCR00207340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779722657c703d5706aade35e2f5f737f5476ad5dca753b7bb0f4d5fff193da7. 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/JPCR00001910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4532918af864c32b81ddd5f5cbc1dd73855ab25914b0e489eed7d1a3736c09. 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/JPCR00304180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e04dbfd162b7d904cd08798da5f341c7e68f0be03d365848b7365058effb2c. 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/JPCR00900340.
30周年記念アルバム キム・ヨンジャ ベスト・レパートリーズ
キム・ヨンジャ全曲集 ～北のウミネコ・花ふたたび～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c98a0deb0b6017dff842b8ecf0026abd823a5d3a5026c9ec9a258e3e87f5cde. 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/JPCR01902240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30f28294ecd75af819cba3d73d1df4555ec7ffe9155fc0c0c2af72dbbabfd14. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/JPCR01803940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5ca85cd5d3884c09e7939a98ed15d069f780a1c52befd190ff28c3db2bef78. 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/JPCR01306260.
キム・ヨンジャ ベスト30 ～愛のBINGO!／酔いあかり～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d07ab7af6ee243749409e29a0727f995610fb63be41ff49a37115fb778c3e90. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPCR09715490.