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 0xb2c41ee45463f9c1225c03d57e12b1fe9bc3ad725db7d5e97a7800f57f1728a9. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10bc3358-9150-4a05-9d44-ed776ccd3173.json and https://artists.proofprofile.net/proofs/artist/10bc3358-9150-4a05-9d44-ed776ccd3173.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
小編成レパートリー・コレクション Vol.11 魔法の鍋
小編成レパートリー・コレクション Vol.12 火の伝説
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 0x7a4c4a5c011ec941e519493c162010cef4946316d493f57f0aebf3419345303b. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:25:09Z), 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/JPCO01912810.
小編成レパートリー・コレクション Vol.13 鬼姫/チンギス・ハーン
Ray of Water 第3楽章 「Journey to Harmony」(Advance Release ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1e67457a725966f499ef19cab751051a2cb2695de50a1fa37e2391702cdf77. 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/JPCO02006020.
小編成レパートリー・コレクション Vol.14 白馬亭にて
フライト・エターナル～アメリア、聞こえていますか？
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef66a9b081091a415c0843324f726b46d7a0a119af9295d203a198699937dce1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCJPW2304738.
小編成レパートリー・コレクション Vol.15 ハルニレの木