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 0xe0fb3977906bff238703b55a50bebeaa431e8397d7391a4a0b88d0c75a671edf. 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/e4b2f6ad-038c-46e1-8088-f66c59c9459d.json and https://artists.proofprofile.net/proofs/artist/e4b2f6ad-038c-46e1-8088-f66c59c9459d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
角聖子のすっぴんライフ～チルドレンズ・ソングズ
角聖子のすっぴんライフ～おやこの名曲クラシック トロイメライ
角聖子のすっぴんライフ～ピアノなひととき
ピアノできく あなたの思い出メロディ[昭和編ベスト50]
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 0x5e130dd7a6c01eecad4193e01065fc1ed36a9a83cce5847af4f3ba90ddbc68a3. 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/JPKI01620383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4f0ad25f29fe8475c893897c0882d2368c69e466db551aed39fe8f35a1486b. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/JPKI09819170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d4d9088a02204c83ee9cc6966612192953091a4d522605945031c3b5d4b227. 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/JPKI09819180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1178d10fea13ec9dbef6f8e1a9ef66bf183d36ccf5c9e9e6011d0271efa95f0e. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:08:11Z), 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/JPKI00602834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea9726857eb09d55936874e55ea997f05c236a89d51aedb5c6d5e623a0d42de. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/JPKI09819200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc938e5461addc975b6e8380b87e716a1d9c53c0ac5fafb682a2ff2f5b095777. 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/JPKI09819210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab2f69b71884c001ed94b38f914c43761c319dbbf284957b933816061884974. 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/JPKI00602837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c93211ea0789462b51b5d93635da29dfe2efb26550027f5a2cfec1932e56db. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:44:48Z), 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/JPKI09819090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bbe2040cc2e86a622a4c36da48776fef270a8110d5886b7ab1f3eee61bd458b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPKI09719210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9e8d361e11991825752e86ab4eb558a919c9fb5890f83edcef4d2b90da04eb. 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/JPKI00602858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7399d8334303bb3066895c67b29fde8ba6d365f02cb80e9420f867aabb254574. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/JPKI09819220.
ピアノできく あなたの思い出メロディ[平成編ベスト50]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcf9b66774fba060675d6456b7b1e7e34e5fe5afc3a0925aee3f66844ded5e1. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/JPKI09818790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66277ff0e663bf808568b7eaa6d84d4a062c9cddaf9aa04192af9402ce0ab625. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:43:03Z), 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/JPKI00602881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822a7bd0b05148f1b0f0f83059bbf25887ddbb279392fd741cf18fc286d388fa. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPKI09819060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4288a631fd24df00e865c00da138aee8708fe4b08e3a0ce56a017e8955587c52. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:03:37Z), 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/JPKI01620393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9349e5a24ed96720adcdeddb47473fb9a72740777a1ff0024c7e46eff6fec1b0. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:18:58Z), 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/JPKI00602859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b903567326cb90cafc38daf4eae4d3d98101c5fa1d94614aab0411d9434f23a. 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/JPKI00602860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6de8688dcc01491c6551b3c8a07c6d8e987c684286d2993654a71af28aec40. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/JPKI01620433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809e4f4be9f245d49585944b3043ad1f8f1426f474257ed176c01d4989d4b1b0. 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/JPKI01620411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2baee6566f70da51af2539cbada267f96205ea87d89d78ce87fced03bd98a80d. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:34:34Z), 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/JPKI00100680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011f744c4fb5af150bcb132cf56fbea61f6e12562f0b39db3d47627f7bcc11d1. 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/JPKI09616650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a34222e0f99be14edee381f43326a26e36b771242cfcbdc542130ff48717063. 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/JPKI09803350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46696ad628366e56bd3f67d2a08bc31524ee03f9df7034e659edb70bf54b9f26. 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/JPKI09902950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73dd1dcd8c8fa365c7d403eb97b68d930ffebbaa74978d6cc0e6bf47a3f091d7. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/JPKI01620454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4ce679571c9133dceeedb854596aa38a7f98d95b843a142f532029acb9872a. 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/JPKI00507711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33e653d2e1caa83c3e4027acb3a06c7e639c6c05d399fe8301bbaf9e729a942. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:30:16Z), 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/JPKI09917040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf854f1e402051207c03bd99b1cd65ede8494afe073aa65b42dd4b85c6b32d162. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/JPKI00507695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a357aed4d6e638c6dd8086ffe725e5ec51c7ec5050a8e5e2f6a8c58979350eb. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:28:45Z), 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/JPKI00811180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84a93c98d1192aabbb9467fc714193cf8f5a2b0dc2633e1bc9f128dc59fb84c. 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/JPKI00602900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7905e1c0dcc9a96e46a7b35e727118cc7851bc2bf3e9310d6941c39af77c26b. 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/JPKI00507702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90a1ff59172bdf763b0c3e26d61d47484edf9b4ee0462b3147d6993b3a059f8. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/JPKI00507708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ddfa1c33685025d2906e60ac44ad8d58b8dcc46cf5981c937cc376247f7d5de. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:17:54Z), 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/JPKI01620484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb1ea5cdcb042d0ff52683f26f58186b88579234f8038c3fcba718e2eb09111. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPKI01620480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064959b7a563003c0161a3e881a3a408ef2169857590794679d91308fa37d5e7. 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/JPKI01620481.
角聖子のすっぴんライフ～ポピュラーミュージック
角聖子のすっぴんライフ～歌いたくなるJ-pop
角聖子のすっぴんライフ～ロマンティック・ピアノ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8289edf913af93bdfeb7919c3dd3602fd05b8462ccf8ee626037acd29c89b5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPKI00227076.
角聖子のすっぴんライフ～なつかしのフォーク&歌謡曲
角聖子のすっぴんライフ～ふるさとのメロディ
角聖子のすっぴんライフ～ピアノが歌う母の歌
角聖子のすっぴんライフ～ピアノが歌う旅立ちの歌
ピアノできく…韓流ドラマティックメロディ
ひな祭り〈桃の節句〉3月3日～節句や行事に聞きたい音楽まとめ♪～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494c2285696cc634d659c08b1de0f54001771a2d0dfb74f53cc759ca03788d23. 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/JPKI09818080.