1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xc56e8229941da5773a0d387418a865ce13468f4adc1ba39e48dfd419e84a66e1. 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/3bf93583-546d-4104-9e1f-f1aa021f5dff.json and https://artists.proofprofile.net/proofs/artist/3bf93583-546d-4104-9e1f-f1aa021f5dff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
TVアニメ『ガールズ&パンツァー』オリジナル・サウンド・トラック
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 → block OTSBitcoinBlock must exist at that height 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 0xddd2eb90fca0ea271c7032901073aeb05314e2350fa02422aa2bc4815102b204. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/JPI101202892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f999753000fd26ade3e5de86659c7010c48329e22f3aab251e3e355dcd5f4d. 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/JPI101202893.
学園艦は今日も勇壮に海原を進みます!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0b0d219d96990e7bc6e9da71252fa445133325fc4852a0fab8519c7ef05af2. 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/JPI101202894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e167101520adcc014938d2fb512c1d11ac72fd9e126ba297b55b6aa853e266. 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/JPI101202895.
戦車の知識では誰にも負けません!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1936cc044a4542256336460558879b9472d1bb3c927fdfc3a4c97ef585cf4158. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/JPI101202898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fea76a98673cd50c5c26dc87ffaa2864b45b28b905afe761d8f16c20ed67581. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:41:08Z), 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/JPI101202938.
戦車道とは女子としての道を極めることでもあります!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a792999e94a4dabc29fd97be7e4eaf93a775a04c6c79048f3f3aa10d14a8666. 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/JPI101202904.
生徒会、悲壮な決意とともに進みます!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db9a57691a1bb49b955f8d1523afeb579b8a2fce9848aefe8d1196c2061bb30. 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/JPI101202905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f0c3332dc679ffcccf3f663f0eb629465355ecfb14c231d265861361880b74. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/JPI101202906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6470ff72100fcd34612a06eab276797816d3622bd144548c1e5acbd9e4d1da5d. 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/JPI101202907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb24c94fa892c8ec80fe736d424c9a568e0db1bcdd0b633b3ee0f75977730adf. 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/JPI101202913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6bef5092cce6d2a366fbe8100b01c597ed72e96a9866b0c9b60cbf1a7c9f2c9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPI101202918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cd745936ae674de571bd24d9f5671c9ad0d5ca7f3026aadf807da0b2cef514. 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/JPI101202923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7544d6bb4b961d560023501e033c61f8e05d994c5d92cf05fcad0d53d3cc09. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPI101202926.
TVアニメ『荒野のコトブキ飛行隊』オリジナル サウンドトラック
OVA『ガールズ&パンツァー これが本当のアンツィオ戦です!』オリジナル・サウンドトラック
秋山優花里のアンツィオ校潜入大作戦です!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2675b9742bd55672c82d8bde8d68862ea4f64e286415cc7e7c0dbb836f30f011. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:19:12Z), 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/JPI101401493.
これが本当のアンツィオ戦です!メドレー1 (模擬戦〜試合開始)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82f7835c4ead6a5d18d0f017767c45f677c1c2fbd3dc65cb9b09e9e91c40f28. 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/JPI101401494.
ガールズ&パンツァー 最終章 Episode1-3 オリジナルサウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740d4bcc6af487ba52afaa4b273f3617ee7f34f77d643c9fe5243ddf1bddacef. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/JPI102100964.
パンの耳を揚げたのは美味しいんです!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e2252e2da8772b80522bbc6f6c1899ad0f14f833bfb029645ff28de1c08205. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/JPI102100965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe477906c1da76ebe2b4f0c04ecf22d3871a9374684753a6295239e3d44db1180. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/JPI102100966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8017a2ea75192372e06df155b7128e382ea858998630632e11eb58988c28df49. 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/JPI102100967.
ボコミュージアムの閉園の時間がせまっています!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebc2b55a8e1f11e3c1f38d315ef6f78011053037d2626e04c65460afda5d5cc. 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/JPI102100968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189a27383667da68ff00354bccf5134fd320707294c4250c8bf33b51e407408e. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/JPI102100969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bff13e39d865e7fb6b39294e750e90f54349f73e62efc1c7205a5165254aae0. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPI102100970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f55c675c37e43809a470723c47506f87bae02ca6789a54e17b4bcfdcf63499. 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/JPI102100971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768ce91e4bfac5abb85434427ae4da8763211715179e94ed354084c95bd1d9b0. 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/JPI102100973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ae49f11e60d07d47b34cb28ee34cc72dc37cfa3cbbb8d2ab807d13bbab7bf0. 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/JPI102100974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011b8b459055f914b755fbc45563147cf0870e35282d925c01a57d97e482d0a6. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/JPI102100976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafdc71b75d1abddd2f83cad574dbe47b9d0d253bf23e8163f10f4531c309da99. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPI102100977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ac74f18d7e1bebd5c720a3dc639f92e47dca590770ae1cd8eb9937edab9979. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPI102100978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc60d60e511e53f2c68c8cfa64a5e929bed39d5a5d3a12b9a91cc8d996457ab. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/JPI102100979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc1335d70b3913e8b05b611e0d0f6a991fe98ba34e0519fb10ec3c78b64d1d6. 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/JPI102100983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf320c183438aae45bc8499433765b9531652da7e37ed72c7186ecde79ad47b95. 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/JPI102100984.
TVアニメ『TARI TARI』ピアノアレンジアルバム presented by L SCORE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d75997826670713ab1227bdcd288de7bbf03d887808276be2ea2e7dd1f7621. 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/JPI102203359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4dea8d78e430078b52e71b2e6881797a7822e54a0939561ded56e0c226b073. 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/JPI100903460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743f2daa332540a5d9758d914145db813ba78b6a7e999fecc5f4d40588b1b783. 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/JPI100903456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874966f71b75e90a58f779a1c45e5505d2225bfa6023222a0793f9f3beb7bdf7. 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/JPI100903461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67cec01f4b5d6b60156561f135ddf2fce6dde79b3c4dbcedfcf8b3fbf63c2cc0. 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/JPI100903458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7aef5b0b7ae9e61f3bbea5a2d30096716b63a71df21b4bc1c24fbc73a87258. 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/JPI100903459.