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 0xec22f02307ee8321cda66d867b6a7c3b9defd55dd614bc74b814e6ffb637a558. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cd0e9d81-6f87-4ef4-8dd5-9b7e53936285.json and https://artists.proofprofile.net/proofs/artist/cd0e9d81-6f87-4ef4-8dd5-9b7e53936285.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
アイドルって言ってりゃチヤホヤされんでしょ？
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 0x4f833c541f52614f2265f390f798f08786759681c44d52fe6f5681a5ac12e961. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTBE2535015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7de56a12b4a0908709be59d87dfa103f07eb574cad7131ab04ff1c153aa35d0. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:38:38Z), 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/QT3EX2519650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546222a25f5be9d6244939a5f66eae8e7c5de48cbdcaf1f712c7afd560fd9c3d. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:30:08Z), 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/QT6E72590558.