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 0x2b63b2caad4526e41e8b84e0f3ee4d3b613c60286bcc4261aa2c0c988efd63da. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f6c73a2-4fd4-4c03-abcd-697027161f29.json and https://artists.proofprofile.net/proofs/artist/7f6c73a2-4fd4-4c03-abcd-697027161f29.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
あいをぎゅぎゅーっと!こどもがうたう身近な歌あつめました。～すこやかな成長に寄り添う50曲
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 0xeb516af37a26d8c2e13e776e8cb6d58707547a5f3aab959b716390016fcfa69f. 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/JPKI02111361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd5e6a77833e7bddf838535c3bb897ccb9a06e22d61afd339146f61c71420b1. 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/JPKI02211424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9922d5d1f0245e04f9ca6b5d5267cde21a6cb4945aa5078ce104a181534cdf3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPKI02211611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72308cbae8d5b0df53ef7a7a88b4bd0b17d8960b1b4ba96cf1198ae9b7723e3a. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/JPKI08794611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa554df778616265082353a27711c623b645146d529b501f4424a8d68dda273. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPKI09316870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf220c9cc1e1db1fa08f067647d6f55d0845204896cbaa1765c2f506d2af598d1. 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/JPKI01410421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c5e63d75d8fa023a4623f73840ea2ecbba8e818d6e2a17eff82f3ec995460d. 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/JPKI00401249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996191d0609ae03276047806d7c461a9489822c25fdafe84f99d8957788ae1ae. 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/JPKI01312528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6f11a9666bdd37c9431e83dc0a8c356a3c2ae77706718a7362c58a45a7a58d. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/JPKI01411212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657f2dd82c7b315a8b2d85a652dc1144233c04ed4f73dc8896119de11f251768. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPKI00910428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6359cdbdafc6f893c84c14a4d6dbe5428a22994b335c53591084c688111684. 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/JPKI02211431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570222ae1b55ee134efee2d8756d62ede385aea50512118635bd202de73e3be4. 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/JPKI00509039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3122bf1c6800367e2d8812745dfb3b0ce56b2515ed224259a02c07fb3fa09c05. 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/JPKI01814008.
家族で歌えるファミリー・ソングが大集合! はっぴー・ふぁみそん 50音順(は～わ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75dce8b314cccebc1a95cd870525c7959e3ddf5290ae34b92b390c527ae1eaf. 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/JPKI08589439.
ハム太郎とっとこうた～ハム太郎とっとこうたつづきでちゅ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5650ac555b20d2e69c7bb0367111b862b8327d172fc9e2dbaf41499e239094d. 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/JPKI00306603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adeec46ae7ab2248a41c82d7e07ec46cb1bcf1c921833597662c5f6d86b4ffe. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/JPKI00000270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9179a74c503d513ccc669ac662644dc34b53821edd364fe5aa48274b6d832bf. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPKI01114145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68babc323be68fcc60260db52c63e0916d71991066aa41eed12aa2ff278b4eab. 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/JPKI01810160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7bdb667e69c86c091ea87ba1b78553de60857d1b31bfd98802f162824e0784. 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/JPKI00815129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78623f9095cd3b74f9ab05ad65d9a410f06b020768b8826518842f8297e361b3. 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/JPKI01512347.
～赤ちゃんもごきげん♪たのしいリズム～ベビー・ヒットソング
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84d4687871af9da0a46d78eef07823770aa9f3e0b2058103018df3d610280e3. 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/JPKI01116472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef376f1865ca78b10c0345867dc228217029f4a6fa17a4d8e978b5a87cfb686b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPKI01217397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b265069a3fd31f99aef89c5ac501886c5d382e4ffef202c681d80a6b29c3cb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPKI01314157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65967edcb29a4997d9b09c8c225d9ecf48ec14aabd8572c835e0ebb0f565ce81. 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/JPKI00911863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3ab9829bfccdcad68d6b8a4e0a1981675a4c738651facfbecf8136c4130891. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/JPKI01615195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaac111f133ebafb2411f66e1088c9559ca082cc7a0f65e0de1d41115a5535fb. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/JPKI01519220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32194513a0a9838be4f9920a569136b11dd661f36f7484fd02f7b00295fff28f. 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/JPKI00605187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5079c8fc48ed3c47458b55a6976b59cf308db78d86ae32397e92ede8a5fd1ba. 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/JPKI00810134.
はる なつ あき ふゆ ビュ～ン!季節のヒットソング
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28a320672f87c48c1d11705e1ead4118f6b6e956334d7ea4b92caf7e76436c7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPKI00406350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf2243baa4df0920fd3252ce134901af06e1dd5e345edd19686073d5ee5c8c8. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/JPKI00815132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b57b10f85992faee097b93a39e422f36621bf5af33a61659e6b30602324fe5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPKI00815203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db55f7a54294ead164290eba23658a16ea016c1504ad4515383fa0accb6c213. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/JPKI01016508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f77b006ae1aee077e2ab3547bc238c90e8b4617088e0a93395f86141f0a0aec. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPKI00406349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3acd269fb00a40652ed8b1c1e6271849ceb5dacfb247e638a1b3b7a8a19fb45f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPKI00910848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2e59d185b95a191529f966c8c52014e52ff00fe46e00d777869e1daa81a8e8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPKI00406982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca893e1474f888e7ee306aff192311d9d1be538e56feb5d326d71c0cd01ba6a. 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/JPKI00406366.
入園・入学 はるはるキッズソング
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e8dbf89a2a3918146d3364150a19f7594a02e7b65bc3db87cf86e4ea00aafb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPKI01212481.
雪の日に聞きたい歌～節句や行事に聞きたい音楽まとめ♪～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6509a197d6d4b414bc3844a72a26f35b23409b98795aa6ad1fafc5511f0b52. 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/JPKI01820243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5e150cd2b72980b758ddc499a07f8483410409f9ef7e112b92a7f0ada51ebe. 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/JPKI09010840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9140b29fc89585297734c8f9b27a2ef37593851a951634bcabffcfded3b3df. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPKI08898731.
家族で歌えるファミリー・ソングが大集合! はっぴー・ふぁみそん 50音順(こ～は)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b628a91648c11f7cbc12e68908a5b48ec39c0fdf4e28adfc16a4dcaad8070d. 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/JPKI09519950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b16364cf82952586c5fef4d07953d905e5ca1756c9e637acfa00f791601884. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPKI00506965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2529e41828003fbd852ec2240d0eade1922c94ad5b8a64da3587e0c3a070e4b5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPKI01818324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffdcb47dbeacf534d573140a4430e9aaf98f9f619126528388d236669bb1cb8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPKI00048570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a82523c8bd2c1818c5f6b3021bbcb6bcf3943af970ee682240f2b4c6fdc0976. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPKI08075783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c82d76ae7454c5462f673039522de5b95fbbddd185e3faafffd2628de8ce18. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPKI08589704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5cdebdd53f369775d351fe56f9de4d821bd42ecb5c60251b6cf2a1800c64aa. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPKI01814005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8833f7c030ba08ff12130347ea04d7c44da5a14bb552b3bafc10b51734d57ff9. 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/JPKI00910846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40951f0866ad2381f9b865bfccdcda132d055564115112401e0df5d5e30fab9. 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/JPKI01720341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ed055a71e00b8deb99b53817e9106db5fee5c645f9fef4548ba498240769bc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPKI00605219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57504daa3682d078b0e44409e554c1b6d351af40cb65b02ee3153d7c85e2c9fc. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/JPKI02110669.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
あつまれ!のりもの・ぼうけん ヒット・ソング～令和キッズ ノンストップMIX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce58bb5a163ae5d4626fbe9d531d9dc541e27b8c09e446e93dccd304c9c4a55. 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/JPKI02313100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe33d394974922ec7d42dd2417fd41ffdcf4c166ff3b9b7592b22e5ddf2417c1. 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/JPKI02313092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c2c51a64665f6453090e7969bb31cefb124df8a2fa909e4bf234aa72e41aa1. 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/JPKI02313578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4e744362aba985f070b746116a112a633335828a9c3fcfec361aa83260c109. 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/JPKI00914919.
きかんしゃトーマスのテーマ2(SL走行音入り)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e9d3f27aae333499491cc13bfeacabdf016e7502f47509c9cdbea813a5d932. 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/JPKI02313585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda76ebffe2027bddfaa5a1cbbb9199c978b3771f2256ed673297ffe2e83a1575. 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/JPKI00605227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6662b413bb55171340830be468c5b5228b69c4f130ac818cfae11ae67eca5dab. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPKI01615196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9309f20636253156b60353144f2069fd76027e814e64b55331d20a55a4f4596a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPKI01512351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c21a88fae4d993cd419de9ad21d3965ca12efbeb9945998f0d1a3381957ed4. 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/JPKI01317500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e20d23cc2d5db19cf501f9a1b894a9a3e211b33608ca5b7bd46478c209fcb3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPKI01116470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6678b95af23a25329eaae0f593f00de9c26b4f87e0c682739b26e24e726ef1f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPKI01116476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa66e811b43b24c716857007f33d11cded8d91c6b570717060e7894ed4155fd. 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/JPKI01115395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951a5b95d7a18b20165082a3300ba8f3213678a861246169f3e0e68857da5eec. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-21T08:51:12Z), 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/JPKI01512348.
あいをぎゅぎゅーっと! ニコッと♡キッズソング ～ニコットマムズ・セレクション～