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 0x846ef7e7d925cd58762fcd4f9da4a1cd5a10d12d029021003e1b00c4c274c450. 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/b9c17018-5a1a-4ca0-8bbc-397711c56878.json and https://artists.proofprofile.net/proofs/artist/b9c17018-5a1a-4ca0-8bbc-397711c56878.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
柳家喬太郎落語集 アナザーサイド Vol.1
柳家喬太郎落語集 アナザーサイド Vol.2
落語の大学 - 〔収録〕平成20年8月18日 お江戸日本橋亭
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 0x7f8a88585d1341bba7f6d2afb02aef47a7f3023c7c26f3c7473a262e12187570. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:28:05Z), 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/JPCO00839300.
鬼背参り - 〔収録〕平成20年8月18日 お江戸日本橋亭
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657eb0ad6bc798b36df074a7a282bd8386167d4693e7c60ee0865a62ac26f065. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPCO00839310.
柳家喬太郎落語集 アナザーサイド Vol.3
柳家喬太郎落語集 アナザーサイド Vol.4
梅津忠兵衛 - 〔収録〕平成26年2月22日 三鷹芸術文化センター星のホール
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc142ba140c42b26edd02e8c6eca6a3eb673c0131727440e5fc62b43ed7eb1115. 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/JPCO01408310.
猫屏風 - 〔収録〕平成25年9月28日 三鷹芸術文化センター星のホール
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c895e06c67816df85978c2af1114596df52e43dd8d9c51011b8d837da5ee9ba. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPCO01332950.
柳家喬太郎落語集 アナザーサイド Vol.5
ついたて娘 - 〔収録〕平成27年8月29日 三鷹市芸術文化センター星のホール
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7fa05499f24ce6b2009ce5a2f7d0b87f134202d1ccbcd0a004da44a7ee990b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPCO01544560.
柳家喬太郎落語集 アナザーサイド 二廃人／サソリのうた
柳家喬太郎落語集 アナザーサイド 極道のつる / ウルトラ仲蔵
極道のつる - 2025年2月1日 三鷹市芸術文化センター星のホール
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53bcbb46035d3d3d9b40895f0bd168dda65a234fe11224644a1f2a24fb2521a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPCO02508030.
ウルトラ仲蔵 - 2025年2月1日 三鷹市芸術文化センター星のホール
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dad80e19ba221885adddf1e98ea813d34622cfdc223662c4e18f845b34bbe13. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPCO02508040.