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 0x160770cb5051b0e1a163e048549d5f3646caa7fefabc651a35495f1e6c68394a. 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/2d0850b7-3cb6-4907-b5f6-fd59d7d5c85c.json and https://artists.proofprofile.net/proofs/artist/2d0850b7-3cb6-4907-b5f6-fd59d7d5c85c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
永遠の絆 (『劇場版 転生したらスライムだった件 紅蓮の絆編』主題歌・挿入歌アルバム)
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 0x91950cf2b646bf3c2e0e0c813d04909d37743801302b8624178e2b018ee6cdad. 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/JPI102201951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f74560560789c642b7a59c59741219a761c9272f8d5cab236a7a34d3cd315b. 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/JPI102202476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3116891a6ad3160dddd5890e083a74adb2a3b2ec7f7746c9e3340199865e06ac. 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/JPI102202477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef42abd9c06bc4e0f4765da74732f57a5e7a46fe83f5e210457ec47191dad4a. 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/JPI102202182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa947403af92ac57d65dfdc940002509dd75397a6883a48bb77e09556a3f09516. 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/JPI102001454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef42abd9c06bc4e0f4765da74732f57a5e7a46fe83f5e210457ec47191dad4a. 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/JPI102202182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6c519a0ae222d32b774ad064d546f0a285451d2ee167159648db8f0b182896. 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/JPI102301771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982388eaaaf6354194cf37518a7383fefed4a540ff9aa2da09d88b5181647b2d. 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/JPI102301772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71b46eea4b4764ed776efb0e0ddacf169dca3ec742616acd4d93fa7773d63a5. 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/JPI102100467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5594f4ab0c9fd87f9cdedbaca12a5fdce014c797a8dc4464b927f84c3c897759. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/JPI102101458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa961a899678481a24680d602a6e7a2627c114d82301812ca4bb4bbd39f7e5abf. 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/JPI101902198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23e61b0909253389c18f9a1235f11804739e9bead8dc50fcda594ff14a4f028. 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/JPI102100468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5594f4ab0c9fd87f9cdedbaca12a5fdce014c797a8dc4464b927f84c3c897759. 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/JPI102101458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23e61b0909253389c18f9a1235f11804739e9bead8dc50fcda594ff14a4f028. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPI102100468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71b46eea4b4764ed776efb0e0ddacf169dca3ec742616acd4d93fa7773d63a5. 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/JPI102100467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71b46eea4b4764ed776efb0e0ddacf169dca3ec742616acd4d93fa7773d63a5. 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/JPI102100467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa961a899678481a24680d602a6e7a2627c114d82301812ca4bb4bbd39f7e5abf. 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/JPI101902198.
『キミとアイドルプリキュア♪』主題歌シングル(TVサイズ)
キミとアイドルプリキュア♪ Light Up！(TVサイズ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e24b8dbe89ddcbe325507560c60cb8138cc1ac393b69e33fe8ed62464e07e18. 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/JPD602400723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2253938482b0523dec87310c22ad7cc80ab9ccef41667503776e6dbbf581fa. 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/JPD602400724.
『キミとアイドルプリキュア♪』主題歌シングル【通常盤】
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057b799a284595914fb6fa3c2dbd553d20a6769d33346a726935098acbfac4ca. 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/JPD602400718.
キミとアイドルプリキュア♪ Light Up！(オリジナル・カラオケ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9d6b3f934bd164281d489797c6cf6329db561bec287f03af8fa74a7cd0f326. 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/JPD602400721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e24b8dbe89ddcbe325507560c60cb8138cc1ac393b69e33fe8ed62464e07e18. 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/JPD602400723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2253938482b0523dec87310c22ad7cc80ab9ccef41667503776e6dbbf581fa. 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/JPD602400724.
TVアニメ『転生したらスライムだった件 転スラ日記』オリジナルサウンドトラック「転生したら日記の音楽だった件」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3625783f143016e584f2f9de1b10dedb68d5f5e958c95a579ee9b963d23a36a1. 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/JPI102101252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f5c0110c8c46820e839f6a976b52509df8dc89ab2d12aae179755c4ad9c04d. 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/JPI102101253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e87a1f2fcdb8f5cfdab4a33de5ea7b60e753ca68484b6918696dedfdab5401. 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/JPI102101254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93c3b247fc373a14a1d02a90cf2098a68015008111249f3bb4a0bb492036107. 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/JPI102101255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf400ab42704915ab49821fa770db7dd0130b059ddc4b4c5a09e0c0ebde1225a8. 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/JPI102101257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4efe88055cfd97e0b39ec214bc2cd4522d921579ff6f7e1c9bcc222706c7a0a. 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/JPI102101286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fd6ef095ee09b3c6feaeca5889824309ca82b4bd3d8df928b6c19f3ba1ec21. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/JPI102101288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c513a77a92ebdaba249d943be9d921ea0704782394ffc688547c6f21bd308c7. 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/JPI102101296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc661f73611424e045a2aae13aa558cf99d75124cc20dfec4814828375e355bf4. 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/JPI102101270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622fc643561555a3967c8b91c6923fe8f2216622513d5a0010f63e156ab60776. 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/JPI102101298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb311cb10cda40af7a6224305813ba1561b299935c7928c5aac4892b0445f54a. 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/JPI102101300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42b77e4ac054c06741d067ade31bf0a3fc1b39de4db93eba3b7147ef49e2995. 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/JPI102101278.