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 0x743cbd199a68a97af23da001cca41adb3cc213068a7630c140154f96623830a5. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/54adb9a1-cc46-4e61-8e1d-330fd0174715.json and https://artists.proofprofile.net/proofs/artist/54adb9a1-cc46-4e61-8e1d-330fd0174715.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Thrift Shop (Originally Performed By Macklemore)
It’s Going Down For Real (Originally Performed By Flo Rida)
Club Going Up On A Tuesday (Originally Performed By Ilovemakonnen)
We Them Boys (Originally Performed By Wiz Khalifa)
Now Watch Me Whip & Nae Nae (Originally Performed By Silento)
I Ain’t Got No Type (Originally Performed By Rae Sremmurd, Swae Lee & Slim Jimi)
Baby Can You Blow My Whistle (Originally Performed By Flo Rida)
She My Trap Queen (Originally Performed By Fetty Wap)