1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xc37d9bd8cd9bef5b5f12a04207049e95acfd466089cc3af34d6cf016205ab429. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/326a576b-467d-48fa-ae5f-300d454c6fef.json and https://artists.proofprofile.net/proofs/artist/326a576b-467d-48fa-ae5f-300d454c6fef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
いつだって世界にファイティングポーズ
初めてだよこんな気持ちにさせてくれたのは恋。
Stand～ここにいるよ～瞳に映るのは妄キャリMix
いつだって世界にファイティングポーズ(2015 ver.)
初めてだよこんな気持ちにさせてくれたのは恋。(2015 ver.)
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 → block OTSBitcoinBlock must exist at that height 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 0xeba722c0a11bc0da827d7f89dc002139ac37c2db28600c4ed5fd26dd87e5ebde. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPZ921413481.