Yi Saenggang (; born 1936), also known as Lee Saenggang, is a South Korean musician and a leading practitioner of daegeum sanjo, an instrumental style of Korean music played on the daegeum, a large ba
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 0x68c3bc034bbea907b13a4c711a3a0026fc98c336de8db4209fb07926608c41d1. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee2545cb-c79a-4d8f-822e-e8a2355aca27.json and https://artists.proofprofile.net/proofs/artist/ee2545cb-c79a-4d8f-822e-e8a2355aca27.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Korean Traditional Folk Songs with Peeri
Korean Traditional Folk Songs with Danso
Lee Saengkang - Daegeum Garak(Tune) of Deep Sorrow
Korean Traditional Folk Music for Standard Dance Vol. 5
Korean Traditional Folk Music for Standard Dance Vol. 6
Music for Korean Traditional Dance Vol. 9
Music for Korean Traditional Dance Vol. 8
Music for Korean Traditional Dance Vol. 7
Music for Korean Traditional Dance Vol. 15
Music for Korean Traditional Dance Vol. 14
Music for Korean Traditional Dance Vol. 13
Music for Korean Traditional Dance Vol. 12
Music for Korean Traditional Dance Vol. 11
Music for Korean Traditional Dance Vol. 10
Lee, Saeng Kang The Original Form Daegeum Sanjo