"Small Things" is a song recorded by South Korean singer-songwriter Yesung. It was released on January 25, 2023, as the lead single off his debut studio album, Sensory Flows, by labels SM Entertainmen
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 0x8dd85b7f8dc02d26c078b148a67e676c9f8cb110e5a3aa5602dddf4b76163e96. 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/bcb50f74-380d-4f3f-a67a-191ca521f9a5.json and https://artists.proofprofile.net/proofs/artist/bcb50f74-380d-4f3f-a67a-191ca521f9a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).