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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9392df9e2781dcab9a6f266b8aa3bcfe5180d3a3ddd17fc7dc6e3689dc8f16. 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/fd6e6e9b-8265-4d89-9794-bd07f863b506.json and https://artists.proofprofile.net/proofs/artist/fd6e6e9b-8265-4d89-9794-bd07f863b506.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
「ら♪ら♪ら♪わんだぁらんど」（アニメ「ぷちます! -プチ・アイドルマスター-」テーマソング）
THE IDOLM@STER LIVE THE@TER COLLECTION Vol.1 -765PRO ALLSTARS-
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d33528b9a890710efd30a7831a408367a4156f1f29248714f925edbede9dd0b. 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/JPI101300563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8cc9c1b61ff260bdef13e797fc5aa100244be74fb8f7ea79a6a352d17d228b. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/JPI101401456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abf8ed3de8e6b0243c530f198e726158c1176dd8144c392692a745d12a8a462. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/JPI101300885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1f7cd5df1b84ff3bc8583d10a2f459e45ccd4676f08f736cd05f0321bbddac. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/JPI101401457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253aecda142b5b42a374d4f4087afc48038e4a851ec5a469d4caffd8676c7366. 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/JPI101301571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e254bebcc13a3db025c93c89752e892333647aba903d2ae5e20f8db4878ec1a. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/JPI101401460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd020bf357283574f0d7366e84e999db574009110a8e6edfc16a1e90ac36921a. 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/JPI101401819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ef40329aa0ecd48988d801bec13dd73441a650b3c0ffba6b9161f92e64ade2. 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/JPI101302095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e464b9faa43bbbb668e045f0043b2dc1c1344e569fa698643c4f8e75c5a053e. 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/JPI101402320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8c8032de84ee5dcfb06bf870dd59f1f78f837975c896e0a12b440dcd9f91b6. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/JPI101402704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c47a3827da0a2f9e4fe6ddfe3988637b502510d85ed0399da64a09344cc600. 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/JPI101402707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e59714af9a52b10a7fdb4f3e4464a6fb6889710c8cf208700957b37ae5c5a8. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/JPI101402714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f178aa200b2636a1f704422447116aafd2c3dfcc98aa284881890587a99f70e. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/JPI101500277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597a288b34259470365f86cbbfcca2bfd15edd0103bbad7e7fab82245fdd6c19. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/JPI101500287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed7efdd699f66104eeddafd9f53d7a8b35e774f9d9f9a80dd807918a23b4aac. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/JPI101400874.
アニメ「ぷちます！！ -プチプチ・アイドルマスター-」エンディングテーマ マキシシングル
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae316104b3299e365da34cb346ade5cf5a5d12986453574275fce28c8e80a63. 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/JPI101301339.
THE IDOLM@STER 765PRO LIVE THE@TER COLLECTION Vol.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5238962b7d09e6c505b9f646ae8be4c32c3e30950dfbbbcf8a96645327b6b8. 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/JPI101900889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bed7bd0c59af69023e3b21ade20b07cff2a78616dd7502cc8c4f1c552c58ed. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/JPI102102496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671a4a396c2dd5278440f3da86dab82b03ae975648d99115b7e3fc989b7ffea2. 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/JPI102201895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa334c00b2bb8898c79ccd349d8648618ee01c650f6af5a2b47a809a13c1973c9. 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/JPI102103138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd421c84a85ea04b45029b72d4971a6bbc2f346f9e6bc4a9baf6b15a96e94b414. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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/JPI102202150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d455fa408a6e110d1e1157cd2610096c427577a1e6fb325474a95cef504ddd. 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/JPI102103142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ab233731aaa40abc80c680cadd418a90a5a3807724f743590463111ad34e18. 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/JPI102202581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99da3b4fe648bf7799967bceffd6e8ad52052777140368e1eb9bc17f15a1537. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/JPI102103477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1757855f0a4775f1c0fd9c2e54afb50c4bdce294fdb48a9a88118634f080d311. 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/JPI102103984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18566b976ce6b7761748d9c416eb5206e6249607a337994041f52f8a26e2622. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPI102200386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5685be8b3cb33a125ef32bd295c0d459d70104c237d781c3f35f62b29708e0ac. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/JPI102200769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0d8b7a17ca400bbd7b47a2b378cdf59148d344132581738bf8cc166d5eec54. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPI102201054.
THE IDOLM@STER MILLION THE@TER GENERATION 18 765PRO ALLSTARS
THE IDOLM@STER MILLION THE@TER GENERATION 18