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 0xc2980813273d2372323ad9c3239e4ec33d2c11e7edbb082b096eb8cc223d8b8e. 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/6aad682e-f7f1-4929-b9ef-6362192603b8.json and https://artists.proofprofile.net/proofs/artist/6aad682e-f7f1-4929-b9ef-6362192603b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0xb2755a3d546d83c23e2905f8efd208d9b11c99f4edf54b2ed696b172e3935d4f. 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/JPI102300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca9a247fb325dd16097251122970643e4dd27732e9f63d9f241385cb91d65bc. 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/JPI101801961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760c90dca3b61b6a40217cf7a38a8681d9488399bce2821391f174c1ffc281ae. 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/JPI101701274.
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インヴィンシブル・ジャスティス
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3cebc1394b1a1d5f706d52639153329fadb7aef1514b791791616cfdc649fb. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/JPI101701275.
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THE IDOLM@STER MILLION THE@TER WAVE 01 Flyers!!!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2fcb70f1b1a336df05c4ca95825e077bda1832e462f1fa4e797953293a941f. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/JPI101900726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9889e9168f6dcc212b96d4ad3108cacebf87704f0b9cdb1cad17ada4bbf830f9. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T08:02:01Z), 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/JPI101900980.
THE IDOLM@STER MILLION THE@TER WAVE 10 Glow Map
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c01f96a6d3e6f00b4b0ddecf97eb60d1f2676bed54c7229d3c7fa6db478c294. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:43:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102000907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef18f7782daa87ce66711783a58a94419d879ea30158153fd12d98ec684aff5. 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/JPI102000906.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c989d93fb76d30bb5cd729271f50c22dd1fd85e361c3beae5a9dc28cfacc8eb. 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/JPI102101668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8a990fe7b5937a1d1fd8ce867be8a290d24765d75cc015aac7d4e9cf892653. 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/JPI102101669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1557996bb4a6711d478ba8bfcb52a40ddc8aa7fa384c0bab77a88f7867b9c581. 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/JPI102101671.
THE IDOLM@STER MILLION THE@TER SEASON Yume ni Kakeru Rainbow
THE IDOLM@STER MILLION THE@TER SEASON 夢にかけるRainbow
Yume ni Kakeru Rainbow (Brand New Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca9a247fb325dd16097251122970643e4dd27732e9f63d9f241385cb91d65bc. 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/JPI101801961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797850b1aba38be2a0125fbc6580bb1af7b51f8902ad3faae35442e0fbd10175. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/JPI101701273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38338e9d68cef5039fdd3a980279ff990efef3d59a338ec5e251230c5a028941. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:58:40Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI101901089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8009fef4428cb20ebc51d0a9b92861ba222f36d3e86e03d6621c412b89a343e. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/JPI102000815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d0fc4ba4bc288923597da32cfcc26a2e0a3a38e80bd5f9f02bfedbc8f0adae. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JPI102101391.
Yume ni Kakeru Rainbow - Brand New Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c48c33a7d289705d8bff61f3dab7f14d8d4efeb925a2170ff66e036c8f95d15. 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/JPI102201896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07c8cb3b7414c6069631e6497516fc89de86d56c95bafbbec9a82f3f11e396b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPI102300071.
THE IDOLM@STER MILLION LIVE! "Good Sign"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e8e59d18777f322191015d1f4aa2d74ff7679580023189c5e675cae25880bd. 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/JPI102301245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ed6fcb69f807d80caebbbb5602cb06ea1c41539033167712d8973a04f52487. 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/JPI102301066.
THE IDOLM@STER MILLION LIVE! 7Days A Week!!
DIAMOND DAYS (765 MILLION ALLSTARS ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e34e52e1f7151058d59ef9f49a3d4a25292c8f03c8162c6972823ab85ed9c4a. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:22:51Z), 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/JPI102401554.