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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e109b6a43313f33ab207ad91042b8db8d3855bf07e03a4bd4aa99f92526dd5. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d237e1c-a7cb-4eda-93ac-4f6531a47545.json and https://artists.proofprofile.net/proofs/artist/3d237e1c-a7cb-4eda-93ac-4f6531a47545.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Maghihilom At Babangon Muli (Instrumental)
Baguio Hymn: Baguio Haven For All (Instrumental)
Baguio March / Beautiful Baguio (Instrumental)
Leni Robredo, Ating Pangulo (The Final Cut)
Leni Robredo Ating Pangulo (Dance Mix) [Karaoke]