{"copyright_id":"0x49e38df77fdde27216dff23ee4e6eeca3bcb6ac6eefddbd57d4d28bfab35e6f8","name":"Nakano Azusa (CV: Ayana Taketatsu)","registered_at":"2026-06-14T06:28:19Z","symbol":"NIM0367104","token_address":"0x71a90c5f4119aab2df50c1a996509eb30af67586","type":"artist","uuid":"1363eae6-d884-406d-a93a-ca558e03ce30"}
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 0x49e38df77fdde27216dff23ee4e6eeca3bcb6ac6eefddbd57d4d28bfab35e6f8. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1363eae6-d884-406d-a93a-ca558e03ce30.json and https://artists.proofprofile.net/proofs/artist/1363eae6-d884-406d-a93a-ca558e03ce30.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x39cb898fce9c76f2b90c580ef4d5516664f245cff6158629ca23079451c7c343. 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/JPPC00902306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76508392951172aac98315f66797bde170d88449d7ef7e7b96ba3c0d81024fd3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPPC00902307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1839bb8d5c48665040f6b7711f8b32d71a9170aadc4215e6e7e69ed92c1e26b. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/JPPC01002534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2b630027897dc8444678dcfe83ce2badc85d901614dbdc7e313df6db2b5cc8. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/JPPC01002535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c0f600731f81761c786de4a7bdd071df7b957a2490c5e2f798b9d1c92b95c2. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPPC01002536.