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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907140c913e10087e0277108103e9fda36ab2018d182591456dbf0817eb55201. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8c30d71f-cf4a-47bf-be37-38c9e68753b0.json and https://artists.proofprofile.net/proofs/artist/8c30d71f-cf4a-47bf-be37-38c9e68753b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Piano and a Pair of Cellos Had a Head Bobbing Contest
Kick It (2024 Paris Olympic Theme Hopeful)
Noah Invites Moses to His Luxury Yacht Party to Celebrate the New Year
Between a Rock and a Harder Place: Mother Russia (Remix)
Famous Dreamy Classical Piano with Background Ambience, Vol. 1
Famous Dreamy Classical Piano with Background Ambience, Vol. 2
Calming Angels Sing with Peaceful Piano (A Stroll on a Cool Night)
Famous Classical Piano with Background Ambience, Vol. 3
Maple Leaf Rag (Classic Ragtime Piano Yamaha Grand Rendition)
Medan Sunset Serenade: Chill Beats from Indonesian Streets
Victory Lap (2028 Los Angeles Olympic Theme Hopeful)
Grand Central Terminal (Lofi Piano & Guitar Chill)
Dynamite In My Shoe (Dynamit in Meinem Schuh)
Mozart: Lacrimosa from Requiem, K. 626, Arranged for Mandolin