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 0xf5eed96a798f3bfe838012504d2367e8548cb81eefb775a0f133d109464aa910. 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/4656a61e-3e8c-4a82-a125-b9aaf7678988.json and https://artists.proofprofile.net/proofs/artist/4656a61e-3e8c-4a82-a125-b9aaf7678988.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
イリヤの空、UFOの夏 サウンドトラック
Anime " Jibaku Shonen Hanako Kun " Original Soundtrack
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 0x29e23e2ebfea2cd84db3a5cec9c3fd92efd438f956e114349c1bbf1c2102ef54. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPC02000344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc9795ca676d90fe259f9db6ed7a4b283a231a32908aeee4efcb7bc1105219f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPC02000345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82da884483aa56fca509acc11afb9ee47e165f0586f33a87617ec091e27e7396. 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/JPPC02000346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad20c0a97733c68e4d8bf97da0b8c6b583d1eb6d18dc21196e46b72ab86ae6e. 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/JPPC02000348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a052ce543c3e0bab3280061b8fb30a8a1a5ba325fc5048d7b69177a9df11e27. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/JPPC02000323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c95ee77528811d7d72e1435481028771497529dd3846731c6aa47d54dfdbf30. 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/JPPC02000324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e6807371d38684262d865452ded979e3b745715fc338820d587ccaf586b2c3. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPPC02000349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46c90d80e914737c7471b6996a79e942152e84a7816fefb60e8a582f4912848. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/JPPC02000350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8a26f0a406eb127ba526f9110ee10d9298ebaa205b5922b9fb6d50f4adb403. 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/JPPC02000351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe08b22dbd7c604521d937d5b17b009f5e87f15bbe3fc694664261ebb772c8a. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/JPPC02000326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826a284d27fa7d088d9256a44d4e8e26d96c1bbf67fca53eb56187925998c067. 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/JPPC02000352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a65009009f43328c6e632fda267e57132fe51146b7063c0b0f96e3955a6214. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/JPPC02000353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da0a363be7ca5bcb3c8b7397e81ade504cf8cd00573363aa5b7948edfc3b99e. 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/JPPC02000328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd548699501908c8392b3af1d6e3949e2e9c36c69581a8060b34c801bd52f01. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/JPPC02000354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6f842dae85a444d152cff4dd585c8961676612cda6f36ac458ca2d8d938a87. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPC02000329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9368a4ad72d938b5b421f1773da67a691dd0854cd666b7104e11d4737f60de. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPC02000356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11cab9a3c1b4e6a08b2daad1b8c1b5ccb02e6749974812f62372c7636f03eae9. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPC02000331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d404cb4bf02255d45f3bf5fbaf509907130d714a7a815976a019a5710ae5ad. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/JPPC02000332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c415315c0b1c0e429de4f16164ae9f8d0aa0c6a1b8b663457de92536730f196. 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/JPPC02000357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80245bda38c123ac5a2e692b2c9b1745d28c7127d49ee189407415ad2e61a11b. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/JPPC02000333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662ce40faebcfeb06a6748874b805a83a264753c71abc432a9ca98ef3f713c44. 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/JPPC02000358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fc63e67fc5ac0ae877b827c920d9b8c81b46146dbc64ba2aeecc8961ca0919. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/JPPC02000371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3530fcdf6204345552a618b7a1062894fe35d2fc07a2fb16c13dcbb1c49fae. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPC02000335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cacdb677e8189e06e324714e2b9edf66de8b28b9ce57d5a2953427cfd74421d. 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/JPPC02000336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6794a6da7fc3f4a252f745199ba0792b827f1344fec07776605753f41ca03317. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPC02000337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b63e892a9deef0b689ebb4640d691b5a92b377997213706c59b734db676363. 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/JPPC02000338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01dc0dbed994b14269f8f04c027481a2480cb4ec2ae3be490558da5f2ec154e. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPC02000339.
おしりたんてい オリジナル・サウンドトラック
アニメ『地縛少年花子くん2』オリジナルサウンドトラック
Anime"Toilet-Bound Hanako-kun, Vol. 2"Original Soundtrack
『素材採取家の異世界旅行記』オリジナル・サウンドトラック
Twinkle Stars(映画エンディング主題歌version）（オリジナル・カラオケ）
映画スター☆トゥインクルプリキュア 星のうたに想いをこめて 主題歌シングル【通常盤】
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828c59862f60426acf378538752e95244a8c1bd03c89fd21b9c77866b4d10d25. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPD601900212.
『映画プリキュアオールスターズF』オリジナル・サウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bfe8956cf70e4c2fef6aeb3ebe941205480e8ed4dc7ec9dd873bd18ff3e17a. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/JPD601600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2d7fd1f064e4ca6defe5161c09c06b3b9c728f832e2369f228be640ccd55f6. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/JPD601500135.