Joshua Weinstein (also known as Precision Tunes) is a New York-based music producer. His pre-release cover version of Maroon 5's "Payphone" made #9 on the UK Singles Chart, selling 34,492 copies. The
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 0xf99992f23f4274c856de96914e0b5b0e1a8cb90b9b1b814feee24131fa18978e. Chain 2 (Bitcoin): anchored in block 954028 (2026-06-17T01:08:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3843319d-caae-40b7-af9e-a4dd5a987a84.json and https://artists.proofprofile.net/proofs/artist/3843319d-caae-40b7-af9e-a4dd5a987a84.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Can't Stop Me (Afrojack & Shermanology Tribute)
Live My Life (Far East Movement feat. Justin Bieber Tribute)
Where Are You (B.o.B Vs. Bobby Ray Tribute)
Boyfriend (Justin Bieber Deluxe Tribute)
Dance Again (Jennifer Lopez feat. Pitbull Tribute)
Right By My Side (Nicki Minaj Feat. Chris Brown Tribute)
Crew Love (Drake Feat. The Weeknd Tribute)
Both of Us (B.o.B feat. Taylor Swift Tribute)
Let's Go (Tribute To Calvin Harris feat. Ne-Yo)
Work Hard, Play Hard (Wiz Khalifa Tribute)
Make It Bun Dem (Skrillex & Damian "Jr. Gong" Marley Tribute)
The Fighter (Gym Class Heroes feat. Ryan Tedder Tribute)
R.I.P. (Rita Ora feat. Tinie Tempah Tribute)
Turn to You (Mother's Day Dedication Justin Bieber Tribute)
So Sophisticated (Rick Ross feat. Meek Mill Tribute)
Goin' In (Jennifer Lopez Feat Flo Rida Tribute)
Beauty and a Beat (Tribute to Justin Bieber feat. Nicki Minaj)
Good Time (Cover of Owl City & Carly Rae Jepsen)
New God Flow (Instrumental Tribute to Kanye West)
I Don't Like (Chief Keef Feat. Lil Reese Tribute)
We Are Never Ever Getting Back Together (Tribute To Taylor Swift)
Girl On Fire (Inferno Version Salute to Alicia Keys Feat. Nicki Minaj)
The Boys (Tribute to Nicki Minaj Feat. Cassie)
Finally Found You (Tribute to Enrique Iglesias Feat. Sammy Adams)
Locked Out of Heaven (Tribute to Bruno Mars)
F**kin' Problem (Tribute to A$Ap Rocky Feat. Drake, 2 Chainz, & Kendrick Lamar)
Everyday Birthday (Tribute to Swizz Beatz)
Rest of My Life (Tribute to Ludacris Feat. Usher & David Guetta)
Nobody's Business (Tribute to Rihanna & Chris Brown)
When I Was Your Man (Tribute to Bruno Mars) [Instrumental]