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 0xce3319754b12e8df0807d3447ed32964b11562af0399a82f67e591c5c4337e00. 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/4ea8d8a1-84ae-4087-8b9f-f4cedde1e806.json and https://artists.proofprofile.net/proofs/artist/4ea8d8a1-84ae-4087-8b9f-f4cedde1e806.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
THE IDOLM@STER SideM ST@RTING LINE-02 DRAMATIC STARS
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 0x3f89bdf211e8e4dfd11b347381647ddbc1149d4c03cbd6aa665ff7f516f447e9. 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/JPI101500450.
THE IDOLM@STER SideM ANIMATION PROJECT 07 ARRIVE TO STAR
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7e8b31da06f4547cd37138c8899d0ac3b7aebffc845847ee2eff112cfe30ad. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:19:56Z), 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/JPI101702887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d5d826ba590c6b63d3c26b51f1c39c72ea24e71cf510fff2f585005aeefbfa. 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/JPI101902174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c26c3be537179d165224acdd90a68b842ecaca1ded6803029bd2af41ec32ac. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/JPI101902175.
THE IDOLM@STER SideM NEW STAGE EPISODE：12 DRAMATIC STARS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a741869de27a920238d01b9289e1b7f80f63bc3297a62559136462ec231956. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPI102100338.
THE IDOLM@STER SideM NEW STAGE EPISODE: 12 DRAMATIC STARS
THE IDOLM@STER SideM GROWING SIGN@L 14 DRAMATIC STARS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423e363bd2242156693bcf6d5adc8d56971dfd8d4cee28a826dd6d8f59971b03. 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/JPI102202137.
THE IDOLM@STER SideM 49 ELEMENTS -16 DRAMATIC STARS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ee22d46c70770404402142e73baa6bed49e9ed3fd9c152eb66206f130d17c4. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:41:46Z), 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/JPI102302084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb616d8ba2fab0dd07951f34bc9d11c9d49c7d531930f60ae000aca5562e6f521. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPI102302085.
THE IDOLM@STER SideM F＠NTASTIC COMBINATION: BRAINPOWER!! DRAMATIC STARS
THE IDOLM@STER SideM F@NTASTIC COMBINATION～BRAINPOWER!!～ DRAMATIC STARS
Study Equal Magic! - DRAMATIC STARS Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba178ebbabc3cacadb9b67c07133e5d8bd169054dab40929e5940588d919b2b. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/JPI102301932.
THE IDOLM@STER SideM F@NTASTIC COMBINATION～BRAINPOWER!!～ S.E.M
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b70835b5b754a62e1522b58ad7ce51e5676432eabfe181b6a28b98503a0101. 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/JPI102301931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2781906e1b73f0ea30c3c2fed4ff9d228c3472a17466048bfecf57bd09640eb. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/JPI102301935.
Beyond The Dream - DRAMATIC STARS & S.E.M Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1360f6c94b305532eda1ca13b0c5cbcfa89e49337c4e60564d5e97fedfbe772f. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:53:37Z), 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/JPI102301936.
THE IDOLM@STER SideM F＠NTASTIC COMBINATION: BRAINPOWER!! S.E.M
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0ed564930c6ba9551bf6cd9b401370002a06be35813660e1bd8f0e0f03edce. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPI102400163.
THE IDOLM@STER SideM CIRCLE OF DELIGHT 13 DRAMATIC STARS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d9d77fb73406e6e6ec27847acf2b028f0be4232096ff27fcd45ba864cbba9c. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T13:55:35Z), 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/JPI102401482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa959a7fc58c06af8b3fefdd79e573d88167ec4fd9a80a64680f14b572163d518. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/JPI102401484.
THE IDOLM@STER SideM 10th ANNIVERSARY P@SSION 01 DRAMATIC STARS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82f5f8b061ddde6b7e3dfdb84c79fb9123633f175e95cbdeb1677111fc8a987. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:06:00Z), 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/JPI101700161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda9c1df86e8b5fb339a040f1bf3be6d47b215e250289dbf8b5c2ac8b333bc84. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/JPI101700162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d101031906e35a129ad56ec7f177193af4f1e20f6b774edf131765597ba0f8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPI101700163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d60585484c2dafaf65f300b48a3db019c465539369741f8ed4937c0d62d4b30. 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/JPI101702886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfcffa929792e13859def0802976ea923492e597b6fd05e42e1f28abc23f011. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/JPI101902172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa959a7fc58c06af8b3fefdd79e573d88167ec4fd9a80a64680f14b572163d518. 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/JPI102401484.