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 0x69b9ac56e62c73734031e513966db64d0e8cd10f2d5728a42842e34ef3c4252c. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4856b241-d5d8-4310-a460-5e2e7953e0f5.json and https://artists.proofprofile.net/proofs/artist/4856b241-d5d8-4310-a460-5e2e7953e0f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fang of the Sun Dougram Original Motion Picture Soundtrack Collection
ウルトラセブン オリジナル・サウンドトラック〈ウルトラサウンド殿堂シリーズ〉
メインタイトル〜ウルトラセブンの歌 - TVサイズ
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 0x1f08045aeddbe21634a66b1e3a28c15a4434a2b60baeacf419caad5f66619cd6. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPCO06611900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86f08da3198a343469ce58cc95e9762dec97f4b53051c5c8e4aebf68a0c53a6. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/JPCO06611690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20031a66757cd93b917982dfce672539232012a589c56ca3c872b3add8f9c78. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPCO06611930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca53a788ae5c36f1e78ab9df1c17a4de5e1bb67d316dea40a87775f5b69aa27. 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/JPCO06611950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c4a7650fbfb2272e0eb4029d0313ee42e7997d2208a47dfe349922484f574f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPCO06612090.
帰ってきたウルトラマン オリジナル・サウンドトラック〈ウルトラサウンド殿堂シリーズ〉
メインタイトル〜帰ってきたウルトラマン - TVサイズ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce479a7c6fa29906dba0f0bce259bf95f2456f89761135e4c5f7ed795f32644. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/JPCO07120380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c608d5c22e7a5bd60aca801483e49af057656d5c9178a805a878051c9ff6e4. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/JPCO07120400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249af3b4790fc9e51f0445ef2032f78d317aea186e56450c272886a8fe53093b. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), 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/JPCO07111320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf774bf11af05b743fc51326ae5372b158a38ac4fe7051b26888df02a3f225bc. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:26:04Z), 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/JPCO07120580.
ウルトラ兄弟メドレー: ウルトラセブンの歌
Japan Maritime Self-Defense Force Band,Tokyo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8622b5317f5ea7206ac762cb9585d28ed9b2b12715e8ceb007e07b17ebd411. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPPO01614139.