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 0xa75039e774c7b92b4a690e19661f2004fe4d50030c1e349d0e55a9fc2a1b4715. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce1c9876-4156-4aca-a9b9-793d78c3239d.json and https://artists.proofprofile.net/proofs/artist/ce1c9876-4156-4aca-a9b9-793d78c3239d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
TV Anime “Binan Koukou Chikyu Boueibu Love!” (Original Soundtrack)
「Fairy蘭丸～あなたの心お助けします～」オリジナル・サウンドトラック
ヤマノススメ サードシーズン オリジナルサウンドトラック
Happy End (feat. HATSUNE MIKU) [Mysterious New Vocaloid P ver.]
Happy End (feat. Synthesizer V AI Mai) [yamazo Ver.]
花野井くんと恋の病 オリジナルサウンドトラック（Complete Edition）
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 0xeb6ac97c074bc9d8e3d59a1290c3d56163bc1b0db8b8e7362267883813ed2c43. 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/JPX892400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511d0ed829a3737ba9fd76611e25fd60265e2aa74d6aae719bc365821c340944. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:42:29Z), 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/JPX892400128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24f351b17124832a35f365ba3b82143cc2fda2960186374a22dbbbb49b9dbc2. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPX892400135.
Cute High Earth Defense Club Hi-CARA! O.S.T.