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 0x1271b13636ce396d3aa5bed20337a802d205ee098687de632e6350d327b37c01. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62cdec2d-eb42-4a03-b689-10a96cb41731.json and https://artists.proofprofile.net/proofs/artist/62cdec2d-eb42-4a03-b689-10a96cb41731.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Unforgettable Lover, The Wish of South and North
Kim Sang-hee Solo Book; Father (Papa) / The Man in a Yellow Shirt
Kim Sang-hee (AMAZING GRACE, Love song in the Rain)
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 0x8da8d93c66239dfdfa35a14d3b7c071daffe322d942d88982eedd65025829d42. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/KRRAR1717924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844500b8e0a75173de6a519bc2dee749bdbdbe71880bf127c6822f538685084a. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:31:14Z), 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/KRRAR2009871.
Kim Sang-hee Solo (Still, White Memories)
Single Album of Kim Kim Sang-hee Don't Give Me That Sorrow, One Heart
Single Album of Kim Sang-hee I Am Leaving on Night Train Me Waiting
Complete Collection of Kim Sang-hee Original Hits
Loved You Deeply/Waiting in the Linger of My Mind