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 0x55ddcfc2fa9af89d26b9503efb3454aafff3a55f44435a60b2e48db7a2584d8b. 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/2775f8f0-e987-43c7-9ec9-cfecca8d9f6a.json and https://artists.proofprofile.net/proofs/artist/2775f8f0-e987-43c7-9ec9-cfecca8d9f6a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
THE IDOLM@STER SHINY COLORS WING COLLECTION -A side-
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 0xeb56036612bb39a41e402c9c9e58d963e0c4e1dc790b4c2b15d0d8780880789c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203036 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb1ebab1c28f1332cfd9db7f2226c7c9c2da150ee17f84b8efbb87a5ffefd06. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203037 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3bd7021ee886e1b41c9f57d41ea35997ceefed6c4cbf35fd9b693c782c9a85. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI101901177 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc22be7487a68d59ba4afd42749dd08bad6d778a8b2657cb4794d9acd27a75b1. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203041 — a six-check JSON result.
THE IDOLM@STER SHINY COLORS WING COLLECTION -B side-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5511469177da6784cb6d1cb43b0b31d70172b1c7dd745fc2694b0cffdc73e9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203136 — a six-check JSON result.
Nando de mo Waraou (SHINY COLORS Version)
なんどでも笑おう【シャイニーカラーズ盤】
なんどでも笑おう - シャイニーカラーズVer.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb213ddee9ebaf6de7808540a520bc24e3b7f09573c58585a34128ec7bd34e533. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102001227 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c2114a40aedd0147842cff21665089bacd6e39c0da8d9391fd0013a0241683. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102101781 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039a5e29a3e37b89fed7b3ce0fae3ee02c642446fb123d0db3517b922ff1d6c1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102101778 — a six-check JSON result.
THE IDOLM@STER SHINY COLORS OFF VOCAL COLLECTION 01
THE IDOLM@STER SHINY COLORS PANOR@MA WING 01
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd4e5e66ec59e7a1e770163b057e09a9cd3bdb50fcb7af2c5650bbd7a5757bd. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102200500 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fc95fc2a2657581d667521135f07b116aa646a3e52ce6eca3ed436ea40dd7d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102200501 — a six-check JSON result.
THE IDOLM@STER SHINY COLORS OFF VOCAL COLLECTION 02
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3ca0c629e4de6effda00876c957c166fde139626610957a762a2bdfc6b690b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102202379 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4df4870110e694ce172ccabe9690209639f9f190fe305b3497f308a0a040ac. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203038 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb56036612bb39a41e402c9c9e58d963e0c4e1dc790b4c2b15d0d8780880789c. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203036 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5814a115c4c3934ab5b5616e38633742a55fa7019d05634c496b44fd698d52c4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203012 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb1ebab1c28f1332cfd9db7f2226c7c9c2da150ee17f84b8efbb87a5ffefd06. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203037 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf01ef698714ca3a2741a93af1af40beebcf0efb7238bfd404224cd06f117e6. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203039 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0f286c637ad5e72e80fe8ff5a2269f950c4643d048712f9b77347136108098. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203040 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc22be7487a68d59ba4afd42749dd08bad6d778a8b2657cb4794d9acd27a75b1. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203041 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5511469177da6784cb6d1cb43b0b31d70172b1c7dd745fc2694b0cffdc73e9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203136 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c000f2ca725f8abe4f9cc7f9dcafa9b7548612f1d6fd9aa403e47ec783cbf2. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203134 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623527f892c0f804d7341658a09b4d3ecfb0ed8bf60b77e9127ebc10de807517. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203135 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac06d6a91addb3b434f3389ed29c28f62c5f4a9f098a950d817d0e2bba4f3de. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203137 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2e812ac0c01c402b1cad17acb134bdc474d5cfd5db6d5804f83ec1b37ea6ed. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203138 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a410fc73cc6f4526a2eab241d4e389536b72d06388cd423a120893665adbb4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203139 — a six-check JSON result.
THE IDOLM@STER SHINY COLORS BRILLI@NT WING 01 Spread the Wings!! (2023 Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff368817fb7a8d638279020ad1015ef976af361ed9dd65991678caec231cb92c. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203010 — a six-check JSON result.
THE IDOLM@STER SHINY COLORS L@YERED WING 01 (2023 Version)
THE IDOLM@STER SHINY COLORS GR@DATE WING 01 (2023 Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0a4e3a1c1fc8e593c9f00bccca77583615d91ad8f5a0f4cd2ae231b882b7dd. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203019 — a six-check JSON result.
THE IDOLM@STER SHINY COLORS FR@GMENT WING 01 (2023 Version)
THE IDOLM@STER SHINY COLORS GR@DATE WING 01 (2023 Ver.)
THE IDOLM@STER SHINY COLORS L@YERED WING 01 (2023 Ver.)
THE IDOLM@STER SHINY COLORS BRILLI@NT WING 01 Spread the Wings!! (2023 Ver.)
THE IDOLM@STER SHINY COLORS FR@GMENT WING 01 (2023 Ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3daf568235f0ac3626327cb04fcc0ec758ffce7788972f7a930c3a5efc974ff. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102203015 — a six-check JSON result.
THE IDOLM@STER SHINY COLORS Shiny Stories
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c2c620e34dcb0e271044484532dc11a014e30fdfc9864726074dc1f687148c. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102301505 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654e7fbdb5f38cad071ab64969bf4c6db3131061938c550d610701c9901c5bbc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102300831 — a six-check JSON result.
THE IDOLM@STER SHINY COLORS Song for Prism Hoshi no Koe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e02d4cb7faaa3d2d58b004a1058cb36c63e0aa83e98707ba688b3f4b5b5a303. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102302090 — a six-check JSON result.
THE IDOLM@STER SHINY COLORS Song for Prism 星の声
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b3c74b294082d310e6a261699afb5287080e5e2b3c3d436791f74f4d098ba2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102302314 — a six-check JSON result.
THE IDOLM@STER SHINY COLORS Song for Prism C'mon! Join Us / 愛なView / サマーサマーオーシャンパーリィバケーション
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83c8b5d695128a09716739985ce5d9270d93c5db8a6ff2a6e8a4b80b97b246b. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102403099 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825abac59f86c029af944576a5fd85238be81fbd5407c84befddbae6b4d882fb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI101802196 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be8d23b724d3bf46c4b072e8b714b890ea80d7438185749a99fd10457b13dc0. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI101901307 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7aedad5adf2e8c485b2ccd636d74bd339b81f33b1d0f6bdf498145504d5499. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102001151 — a six-check JSON result.
THE IDOLM@STER SHINY COLORS -28 colors- COLLECTION
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b87c7e48835456d5a398867e305efbca7c46d9847d065965386465af6a53286. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102403566 — a six-check JSON result.