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 0x1edb035c530e35184734a03929da00195993f5f168836a6ae4afe14d29182d43. Chain 2 (Bitcoin): anchored in block 954556 (2026-06-20T12:14:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/af7226bc-2ef0-4415-afcc-b79cdc239c4e.json and https://artists.proofprofile.net/proofs/artist/af7226bc-2ef0-4415-afcc-b79cdc239c4e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
流星のタイムカプセル ～Live with happy swing orchestra～
幸せのおすそわけ ～信じることは素敵なことよ～
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 0x3c57ea2099da92a941d0a249986da33166e96c6e30a44bcefadff144184c946c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPVI00708660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdcb37707d1e3130a04a82e370d28fc506f50462fe6eb5888c5770a7d0013c5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPVI00713160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fef9cdc3edca6913c072a0eaf4691c4d18fcb41acc672e09f3cb2bf16129ff. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPVI00606180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ceb94d64b310fab173c901845f97829ee606e629fd4ba942b6fe64eb909944. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPVI00705810.
ひとりごとみたいにアイシテタ - swingin' singin' playin' ver.