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 0xea10cb81804d9bf50b7f5b73e890dafd94f8f73435c356b6bd9fa6ce5fb767bb. 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/9b03e163-70de-4489-9a04-ae0dc37a51a9.json and https://artists.proofprofile.net/proofs/artist/9b03e163-70de-4489-9a04-ae0dc37a51a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
プリキュアオールスターズDX 3Dシアター主題歌&メドレー
スイートプリキュア♪ オリジナル・サウンドトラック2 プリキュア・サウンドシンフォニア!!
「スマイルプリキュア！」主題歌シングル OP:Let’s go!スマイルプリキュア！/ED:イェイ！イェイ！イェイ！【通常盤】
「映画 スマイルプリキュア! 絵本の中はみんなチグハグ!」テーマソング きみという未来/スマイルプリキュア!メドレー
スマイルプリキュア! オリジナル・サウンドトラック1 プリキュア・サウンド・パレード!!
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 0xb8682a553d5725110fe99cecfebb75dcfddd2cdf60463adebc73113ad17f0f12. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPD601200011.
ハートキャッチプリキュア! オリジナル・サウンドトラック1 プリキュア・サウンド・フォルテウェイブ!!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105798e384c76e5881800b4e201d9ea5d4f8d57562ca4d5f591c2d1216e99fcc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPD600904463.
ハートキャッチプリキュア！メモリアルアルバム
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd526cf695a595214a2330fefcdcbc59fe7aab79a0c1df47c46bd12cf7c56fd3a. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPD600904430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53b2890204b220344ab518b866ff26c192943b206d5a7ea5c6b4ba512072777. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPD600904536.