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 0x44b0d398685e710d7ed85f2e9199ac16f10a25ddd5beca73a61ac90c89925289. 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/aaea7641-bba9-426b-8574-c586401bb986.json and https://artists.proofprofile.net/proofs/artist/aaea7641-bba9-426b-8574-c586401bb986.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
映画音楽夢コレクション DREAM ~夜霧のしのび逢い~
映画音楽夢コレクション ROMANCE ~男と女の詩~
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 0x61843029d8bcf388d5e9f8614e5e4720bad259d57b06fcabb52c36b0d59ba211. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG921001782 — a six-check JSON result.
映画音楽夢コレクション POEM ~ある愛の詩~
映画音楽夢コレクション MEMORY ~恋人たちの曲~
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b7c130599117cc6c8a266777a2ccc6b1081bbc124b89467d5dac00f238f9a4. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/JPG921001768 — a six-check JSON result.
明日に向かって撃て~雨にぬれても
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a76b38238349199a1a6de4fd19d097c85f90539ab3791f26749966f9d4ebfd. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/JPG921001771 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15085e45d56debb414effb3acc9c60908c349df2f9f1ebff9ac35e48e5861097. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/JPG921001773 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf374708af9dd52a28d8c655c818be9e01823381df2a54606190791aae3495f3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG921001774 — a six-check JSON result.
映画音楽夢コレクション LOVE ~愛情物語~
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52bc0961e97d6a7fd719618d65a60cc7ae276e2b7b973534bc3eb6b661f0b4f. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/JPG921001805 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205bd26fb1703826ce6174d12aa4b7330ad14b00e25c129acd8ae162f812cf02. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/JPG921001806 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b8be45cd890d9929d0ad339727d8cb2684f08e11cebb2fabe64c10a21cf7b3. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/JPG921001808 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5c7ca1a536b41abdeacdf6a87b463c5e13a7fc28863fa9c451be5c88920233. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG921001809 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883ae86955b3a27b3b54156f99f4680eca870d7933fb176da4af3cd0d1b76022. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/JPG921001811 — a six-check JSON result.
映画音楽夢コレクション EVERGREEN ~帰らざる河~
映画音楽夢コレクション HISTORY ~ベン・ハー~
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1185b3bc427ad4d2e6a8e4bb0a2f390d5dd4e8535a7ddff057354cc20186005e. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/JPG921001872 — a six-check JSON result.
映画音楽夢コレクション ANGEL ~禁じられた遊び~
映画音楽夢コレクション ADVENTURE ~史上最大の作戦~
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7666b846aeba6d2aad90c4567bdc913df4832eb3defc78bf0b56c7c6e5e1a51f. 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/JPG921001978 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa875a055c908183020b4116777aa9857ddabc28d3d04d38ab048fdba49e53110. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG921001983 — a six-check JSON result.
映画音楽夢コレクション ACTION ~ダイヤモンドは永遠に~
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f04f3bdda421dfaec2c6b628ab1d7df4ef014b70a8f4538459b86ef6e0dd68. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/JPG921001941 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68fbe51b6c2f0b7da4fa2854f12cedbaff175b5ad127de0822846c9933dcf985. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/JPG921001950 — a six-check JSON result.
映画音楽夢コレクション EMOTION ~白い恋人たち~
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea7614bd32d61c7eaf01bd7a1916cbc9418376451261ec033d72b07d3f1ad32. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG921001966 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82dbc9bdf958dc7a8dd9485c20fcedab7a186965f61f914991ec38215c7d279e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG921001967 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f14e20ccb9fcfc7a96eefdcd06b9eae9e801173921d69de59e704d5e39081b2. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/JPG921001968 — a six-check JSON result.
映画音楽夢コレクション WESTERN ~夕陽のガンマン~
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4307381ac93eec03c5dd711a3eb6eff34810687c4a7daac3a1963eef91cb9a26. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG921001900 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc977d8fd1c0e991fadf7b03dc8f99f6d62feb919e00f5a94da8994b98611607c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG921001901 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4c5b7c2ac95c95dc35f8c0b68d1c090a855f35b4b001f91b5de721dbd55c8e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG921001902 — a six-check JSON result.
映画音楽夢コレクション SUSPENCE ~暗くなるまでまって~
映画音楽夢コレクション MUSICAL ~ウエストサイド物語~
ウエスト・サイド物語~トゥナイト
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068fcf27237f56137c466031f8a4c683959b415bc89e26c52097e59f75d9a3e5. 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/JPG921001905 — a six-check JSON result.
マイ・フェア・レディ~踊り明かそう
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5ec4a85be74e36393ef0761cb14eae8b60caab426d5edbd7c3aebf2dc4b610. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPG921001907 — a six-check JSON result.
屋根の上のバイオリン弾き~サンライズ・サンセット
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7577efa117f51f79d9883c7a854f3283523f18dd88df482fa081bf1ee86c6d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG921001912 — a six-check JSON result.
映画音楽夢コレクション GLORY ~ジャイアンツ~