Sojin may refer to: Sojin (Shinto), an ancestral deity Park So-jin, a South Korean singer and actress Sōjin Kamiyama, a Japanese actor See also Sōchin, a kata in karate Soo-jin
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246ad32f2543434c244591b807e729763313dcba26e8d97959cccc9b83e755ed. 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/3765ee1c-d0d4-423b-ac18-a254bdd16afd.json and https://artists.proofprofile.net/proofs/artist/3765ee1c-d0d4-423b-ac18-a254bdd16afd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
욕망의 불꽃 (Music from the Original TV Series), Vol.3
Flame of Desire OST Vol.3 (MBC Weekend Drama)
DEUX 20th ANNIVERSARY TRIBUTE ALBUM OST Part 1
family2015 (Original Television Soundtrack), Pt.2
Reply 1988 (Original Television Soundtrack), Pt. 8
LIFE (Original Television Soundtrack), Pt. 2
Close Your Eyes (Original Soundtrack From "라이프"), Pt. 2
I Don't Wanna Work (Original Soundtrack), Pt.7
I Don't Wanna Work 2019 회사 가기 싫어 (Original Soundtrack), Pt.7
Hidden Masterpiece Re'born Episode.6 Close Your Eyes
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541b9e7a7c2e345379548c7f35aab190e37e29fc993643810d6a625d056bc34f. 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/KRA381210908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e52c8425143f5cd5744a7ef51a54e618ebafc68957f0c1f88e82d5ee5f8a04. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/KRA381211263.