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 0x9c7c7c5fc33b142c36229c10e4ba57ffc1edba547d163c13293c29dcb6272c74. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/482ca72b-8fed-42d0-945d-a19fe86ca2f3.json and https://artists.proofprofile.net/proofs/artist/482ca72b-8fed-42d0-945d-a19fe86ca2f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ビターチョコデコレーション(超学生 edition)
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 0x453ab0d959056fb476f116d6656adce05d4eb0d1eded5e01a06a0e71b4da8bb5. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/JPPC02310010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971ddf10b5bd9c5ac8f34b78d6fdc3734800f2e41f2645bd17a32c9c074738e7. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:21:12Z), 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/JPPC02312471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab4dbdc329503248248fd233f728869c636645a408657b673a620e596482f82. 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/JPPC02311578.
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永久アンフィテアトルへようこそ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469ba45f522d0565180d352148efef82c26b8bf6f000342a4dff6fbd5df97b20. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPCO02405250.
Teyvat Film Festival: Genshin Impact HoYoFair Music Selection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6b50e0632c23a9d36adbbb49b5347a63e2dac67a455a0b8b1ca047e5f54e7e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZK6Q2490799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa350caf950fc34fd89da16768d4f7286b59d420edbe9bd10aa15a7f6c3c2663b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPPI02302450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a4a886d9653310f9149a1ecfacd67c237775dcee7b7f6d66625ad7c84678f9. 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/TCJPT2248672.