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 0x7efc05c5cfb1c8a553042c3288750c4576908bd3def5e5abf8075f1a34cba22f. 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/6381e9ce-263a-4ec3-9d85-522ebff869e1.json and https://artists.proofprofile.net/proofs/artist/6381e9ce-263a-4ec3-9d85-522ebff869e1.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 0xe7257d43ba845cf5c6a3341df24e4b541b02e822d33d0e09cc2d4f3b6a7a2a08. 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/JPCO06910280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9321757efeaf7ad36a6cfd2fc07fbc08e4a38769854d94e682f2c9da144db7. 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/JPCO06806630.
何があなたをそうさせた／いしだあゆみヒット・アルバム
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1ce5584d604b52668cabcace35c77d4bb99b51f5698768d246172ca60b434d. 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/JPCO06908640.
Nani Ga Anata O Sousaseta / Ayumi Ishida Hit Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fce999d001cc94cf4a670fbab58bf6e1243c1cab465472f160175dbd43dd645. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPCO06910260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd7ad73947c88f7316b7ea03ff9d3692dbec5057cc45b8a596f9f0db61da54b. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/JPCO07107370.
Ayumi on Stage (Live at Shinjuku Moulin Doll, 1972)
あゆみ オン・ステージ (Live at 新宿ムーランドール, 1972年)
Ayumi on Stage (Live at Teikoku Gekijo, 1973)
ドーナツ盤メモリー いしだあゆみ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e5a4171b3bf5d03d3b4b70dd481e5eecc9f9c21d3c1b2a25a1d5eaf8fb8fac. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPCO07751750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d05676481dd91fd7ca9816767f8d452c06fca697194e0e65ff95d8d78c4c572. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPCO07751760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5c8d55ed8307d2ea18f4e4591b8c4766c003debc000a49be1de07be3bc348c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPCO07751770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15c332f8b0790fcde2fd72cc8a7dc664ad9f224b05570a99b99a373a3dbcd22. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPCO07751780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af2122bc88b02b1b78e8868a078d6cd4cb91ac27fb3bc8fcb31360e04e4413b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPCO07751790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbc68b9cd600432475ac4f068cee29b2ec0592f60005fb515d548b13081fe6b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPCO07751800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63adedd510d090ae346bc5f173cffe8739a88de79cc9b55a6ba1e2911deae1b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPCO07751810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca15663bdf12945de1d3b1d6907839a5d254b34a2045fb1e2af6d449d6fd36ab. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPCO07751820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851387e6bc8092e5d5f6798cca14ecba051b94bcba8f4ef7b16ac6f4b1d7f756. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPCO07751830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d0d924ad73f8ebb104039c1f8d1265d4932bad8c4a305416a79bcf47617f51. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPCO07751840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb744268ae7eb871c365cd95f1a9c34ed6be7cf8a037baced5ed35d6d4a58e776. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPCO07751850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522d764b9e065f2b94e2276e96786cae5015e6f2c7a3ff56ad9d640ec8559550. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPCO07751860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea57e607bff2274f790102f6fcae8dcf9be2653d20ce345e2542a9f24750772. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:48:22Z), 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/JPCO06912710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34e376f55deb382e3c19b8b5b2fad36dcd04511e6c9179e148c7a1a38deb58e. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/JPCO06913220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fce999d001cc94cf4a670fbab58bf6e1243c1cab465472f160175dbd43dd645. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/JPCO06910260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe519213dbcd1e4f7f9b055e289f38c77b862a32c132c6516bde78ee1f8d8240b. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/JPCO07010560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce412d4e2ffc2e54eabcff4d8828267cfe5c2d9eefe4b159184cdf32acc9997f. 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/JPCO07008370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd7ad73947c88f7316b7ea03ff9d3692dbec5057cc45b8a596f9f0db61da54b. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:46:33Z), 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/JPCO07107370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0bd211876ade57f4ec1c0be70824cdcb98d59f7aa379a175d479075f4a2fd1. 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/JPCO07108470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7fb698a4241ac659b220f5bf349d34b288e757517db8a369da8e1969af1569c. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/JPCO07208400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1e752f07621ef75eef4641366cc1dfadfac7c729cd6e02183fc24bb2a238aa. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:33:20Z), 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/JPCO07307650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ddcd2eabe680be4142da664ed2c50c6dffc46dddf2af3740014d847660830b. 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/JPCO07303620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51efd9c50f3ee8898879fbd89cc31cc9257f4911c796d4a707eb26cdb98f880. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:34:27Z), 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/JPCO06806660.
“極上歌謡曲特盛”シリーズ いしだあゆみ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804b569fac736c646ea93e7641aba9e8ec1b270fa9389458e49e312fc8b2d333. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/JPCO07208320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0553639ae03acaddd086115f20f6563f0825251adbff75cfb58894055b62b5. 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/JPCO07208350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5a01ea3749b277d24324a2fafd3d89b344ead2da703132c5041fc275f77123. 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/JPCO07110950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f05a156c8a7f369491ac41213abc42681c9a6f4b648343dfcffb92ee273281. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/JPCO07208370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf34a79acd40d3fcc268eafc062f158ba1e47566ad294400972e9676391097e. 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/JPCO07208390.
いしだあゆみ・せれくしょん 〜シングル・ヒッツ & モア〜