カトリナ・グリーベル (CV.天城サリー)
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 0xd2e3db14284239973ddf302ccac7255abbc0c26477e2d58497d1cc34f47c7c92. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2292e9e-8aa7-40fe-8370-8ef56bd37f94.json and https://artists.proofprofile.net/proofs/artist/e2292e9e-8aa7-40fe-8370-8ef56bd37f94.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 0x987ab9fd0ab6913f38e772b7ee210ac43f9c117e0581aa3dcf2b6cfe5a028b8f. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/JPI102302322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d79e4bcf3242ee5eac119d5803b301dca295ba8441e69105e67cfee43b4f01d. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:40:18Z), 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/JPI102302344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1e232c791cfcbe1bc25b8fd18fde77a992281042b93523be6e1cb73ca64f17. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:25:20Z), 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/JPI102302345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee25f89b05964f908533b6a1c7abc69c8e821d5d8f3bb6472fc1aafc0a2bc3f1. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:45:02Z), 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/JPI102302770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35ce370782d8dcd7c39e082af67fea5711ccec4ff1a02af26af79b5354939f9. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/JPI102402683.
ティンクル・ティンクル・ティンク！
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cba07855d36fe552619ed78a8c0cd47ec4c4a052f4c623a08e9c299f172b093. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/JPI102501188.