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 0x4698e3a102daa810a5ec8df16737715fd7158b9d423ef57344bab9219e899ed2. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c8547df-9cd7-4741-a91b-07a81ef96042.json and https://artists.proofprofile.net/proofs/artist/1c8547df-9cd7-4741-a91b-07a81ef96042.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
SKY Castle, Pt. 3 (Original Television Soundtrack)
Letter To Dolphins (Unhappy is not me anymore)
Letter To Dolphins (Unhappy is not me anymore) - Instrumental
Unstoppable (from “Decoy, Original Coupang Play Series Soundtrack, Pt. 1”)
Loneliness Always Follows Me Wherever I Go
Loneliness Always Follows Me Wherever I Go - Instrumental
Dear Hongrang (Soundtrack from the Netflix Series)
Let Her Stay (Our Movie : Original Television Soundtrack)
Let Her Stay (Our Movie : Original Television Soundtrack) (Inst.)
{"copyright_id":"0x75cf6b4e94672300f72e0a1bf796efe2ad4da83f726ace063bf207cf1458e148","isrc":"USL4Q1943275","name":"PHOBIA (feat. ABOUT)","registered_at":"2026-06-06T11:30:31Z","spotify_id":"47kKkChCK2vJjtKw0Bvczy","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cf6b4e94672300f72e0a1bf796efe2ad4da83f726ace063bf207cf1458e148. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/47kKkChCK2vJjtKw0Bvczy.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/47kKkChCK2vJjtKw0Bvczy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2c6e77f287647c59d5bab1f4e4d8437ebe9b6bdc89b8062354445cf93ae5f4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/16JVt047q42nGnZowaEdD2.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/16JVt047q42nGnZowaEdD2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363ba0197e80aa828b855583a4e167f7a8e18fd8332c1304e86a5f4de0cfd7bd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6HjXGhR4ze3VFqSbr0niUY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6HjXGhR4ze3VFqSbr0niUY.