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 0x2401f3f3e7bd743bc63cacf88ee526efbca5e24755b92ebd1bba51ea8d46453f. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de538d62-7d54-4bc2-a811-2964af2ce623.json and https://artists.proofprofile.net/proofs/artist/de538d62-7d54-4bc2-a811-2964af2ce623.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Trap Queen: Karaoke Tribute to Fetty Wap (Karaoke Version) - Single
Earned It: Karaoke Tribute to The Weeknd (Karaoke Version) - Single
Thinking Of You: Karaoke Tribute to Ed Sheeran (Karaoke Version) - Single
B.A.N.S. : Karaoke Tribute to Sevyn Streeter (Karaoke Version) - Single
Blank Space: Karaoke Tribute to Taylor Swift (Karaoke Version) - Single
Chains: Karaoke Tribute to Nick Jonas (Karaoke Version) - Single
Confident: Karaoke Tribute to Justin Bieber (Karaoke Version) - Single
Girl Crush: Karaoke Tribute to Little Big Town (Karaoke Version) - Single
Good Kisser: Karaoke Tribute to Usher (Karaoke Version) - Single
SomeWhereInAmerica: Karaoke Tribute to Jay-Z (Karaoke Version) - Single
See You Again: Karaoke Tribute to Wiz Khalifa (Karaoke Version) - Single
Primetime: Karaoke Tribute to Janelle Monáe (Karaoke Version) - Single
Love Me Like You Do: Karaoke Tribute to Ellie Goulding (Karaoke Version) - Single
Hold On We're Going Home: Karaoke Tribute to Drake (Karaoke Version) - Single
Hey Mama: Karaoke Tribute to David Guetta (Karaoke Version) - Single
Sugar: Karaoke Tribute to Maroon 5 (Karaoke Version) - Single
Talking Body: Karaoke Tribute to Tove Lo (Karaoke Version) - Single
Somebody: Karaoke Tribute to Natalie La Rose (Karaoke Version) - Single
2 On: Karaoke Tribute to Tinashe (Karaoke Version) - Single
Lay me down: Karaoke Tribute to Sam Smith (Karaoke Version) - Single
Fight Song: Karaoke Tribute to Rachel Platten (Karaoke Version) - Single
GDFR: Karaoke Tribute to Flo Rida (Karaoke Version) - Single
Honey, I'm Good: Karaoke Tribute to Andy Grammer (Karaoke Version) - Single
Style: Karaoke Tribute to Taylor Swift (Karaoke Version) - Single
Throw Sum Mo: Karaoke Tribute to Rae Sremmurd (Karaoke Version) - Single
Time of our lives : Karaoke Tribute to Pitbull & Neyo (Karaoke Version) - Single
Worth It: Karaoke Tribute to Fifth Harmony (Karaoke Version) - Single
You Know You Like It: Karaoke Tribute to Dj Snake & AlunaGeorge (Karaoke Version) - Single
Nasty: Karaoke Tribute to T-Wayne (Karaoke Version) - Single
Ayo: Karaoke Tribute to Chris Brown & Tyga (Karaoke Version) - Single
One Last Time: Karaoke Tribute to Ariana Grande (Karaoke Version) - Single
Pray to God (In the Style of Calvin Harris) [Karaoke Version] - Single
Not on Drugs (In the Style of Tove Lo) [Karaoke Version] - Single
Masterpiece (In the Style of Jessie J) [Karaoke Version] - Single
Linger (In the Style of Guy Sebastian) [Karaoke Version] - Single
Like I Can (In the Style of Sam Smith) [Karaoke Version] - Single
Glory (In the Style of Common & John Legend) [Karaoke Version] - Single
Elastic Heart (In the Style of Sia) [Karaoke Version] - Single
Cheerleader (In the Style of OMI) [Karaoke Version] - Single
Bitch Better Have my Money (In the Style of Rihanna) [Karaoke Version] - Single
Bad Blood: Karaoke Tribute to Taylor Swift & Kendrick Lamar (Karaoke Version) - Single
Feeling Myself: Karaoke Tribute to Nicki Minaj & Beyonce (Karaoke Version) - Single
Where Are U Now: Karaoke Tribute to Skrillex, Diplo & Justin Bieber (Karaoke Version) - Single
Watch Me: Karaoke Tribute to Silento (Karaoke Version) - Single
Cheerleader: Karaoke Tribute to Omi (Karaoke Version) - Single
Energy: Karaoke Tribute to Drake (Karaoke Version) - Single
I Know: Karaoke Tribute to Big Sean & Jhene' Aiko (Karaoke Version) - Single
Nasty (Freestyle): Karaoke Tribute to T-Wayne (Karaoke Version) - Single
Truffle Butter: Karaoke Tribute To Nicki Minaj, Drake & Lil Wayne (Karaoke Version) - Single
Post To Be: Karaoke Tribute to Omarion, Chris Brown & Jhene Aiko (Karaoke Version) - Single
Want To Want Me: Karaoke Tribute To Jason Derulo (Karaoke Version) - Single
Good for You (In the Style of Selena Gomez feat. A$AP Rocky) [Karaoke Version] - Single
679 (In the Style of Fetty Wap feat. Remy Boyz) [Karaoke Version] - Single
Back To Back (In the Style of Drake) [Karaoke Version] - Single
Can't Feel My Face (In the Style of The Weeknd) [Karaoke Version] - Single
Classic Man (Remix) [In the Style of Jidenna feat. Kendrick Lamar] [Karaoke Version] - Single
Fight Song (In the Style of Rachel Platten) [Karaoke Version] - Single
Lean On (In the Style of Major Lazer Feat. MO & DJ Snake) [Karaoke Version] - Single
Flex (Ooh, Ooh, Ooh) [In The Style of Rich Homie Quan] [Karaoke Version] - Single
Locked Away (In The Style of R. City feat. Adam Levine) [Karaoke Version] - Single
Hello (Originally Performed by Adele) [Karaoke Version] - Single
Sorry (Originally Performed by Justin Bieber) [Karaoke Version] - Single
Stitches (Originally Performed by Shawn Mendes) [Karaoke Version] - Single
Hit the Quan (Originally Performed by iLoveMemphis) [Karaoke Version] - Single
Cold Water (Originally Performed by Major Lazer feat. Justin Bieber & MO) [Karaoke Version] - Single
I Got The Keys (Originally Performed by DJ Khaled feat. Jay Z & Future) [Karaoke Version] - Single
Treat You Better (Karaoke Version) - Single
Sucker for Pain (Originally Performed by Lil Wayne, Wiz Khalifa & Imagine Dragons feat. Logic, Ty Dolla $ign & X Ambassadors) [Karaoke Version] - Single
We Don't Talk Anymore - Single (Karaoke)
Blue Ain't Your Color - Single (Karaoke)
Scars to Your Beautiful - Single (Karaoke)
Bad and Boujee - Single (Karaoke Version)
I Don't Wanna Live Forever - Single (Karaoke Version)
Chained to the Rhythm - Single (Karaoke)
Something Just Like This - Single (Karaoke)
Down (Originally Performed by Fifth Harmony feat. Gucci Mane) [Karaoke Version]
Malibu (Originally Performed by Miley Cyrus) [Karaoke Version]
There's Nothing Holdin' Me Back (Originally Performed by Shawn Mendes) [Karaoke Version] - Single
Wild Thoughts (Originally Performed by DJ Khaled feat. Rihanna & Bryson Tiller) [Karaoke Version]
Unforgettable (Originally Performed by French Montana feat. Swae Lee) [Karaoke Version]
What Are You Doing To Me (Originally Performed by Charlie Puth) [Karaoke]
Don't Be Afraid to Catch Feels (Originally Performed by Calvin Harris feat. Pharrell Williams, Katy Perry, & Big Sean) [Karaoke Version]
Hollaback Girl (Originally Performed by Gwen Stefani) [Karaoke Version]
Look What You Made Me Do (Originally Performed by Taylor Swift) [Karaoke Version]
Young Dumb & Broke (Originally Performed by Khalid) [Karaoke Version]
1-800-273-8255 (Originally Performed by Logic feat. Alessia Cara & Khalid) [Karaoke Version]
Rockstar (Originally Performed by Post Malone feat. 21 Savage) [Karaoke Version] - Single
Too Good at Goodbyes (Originally Performed by Sam Smith) [Karaoke Version]
What Lovers Do (Originally Maroon 5 feat. Sza) [Karaoke Version]
Thunder (Originally Performed by Imagine Dragons) [Karaoke Version]
Bank Account (Originally Performed by 21 Savage) [Karaoke Version] - Single
Havana (Originally Performed by Camila Cabello feat. Young Thug) [Karaoke Version] - Single
Gucci Gang (Originally Performed by Lil Pump) [Karaoke Version] - Single
Feel It Still (Originally performed by Portugal. The Man) [Karaoke Version] - Single
No Limit (Originally Performed by G-Eazy feat. A$ap Rocky and Cardi B) [Karaoke]
Perfect (Originally Performed by Ed Sheeran) [Karaoke Version]
Bad At Love (Originally Performed by Halsey) [Karaoke Version]
God's Plan (Originally Performed by Drake) [Karaoke Version]
Meant to Be (Originally Performed by Bebe Rexha feat. Florida Georgia Line) [Karaoke Version]
Finesse Remix (Originally Performed by Bruno Mars & Cardi B) [Karaoke Version]
All the Stars (Originally Performed by Kendrick Lamar & Sza) [Karaoke Version]
Psycho (Originally Performed by Post Malone feat. Ty Dolla $ign) [Karaoke Version]
Stir Fry (Originally Performed by Migos) [Karaoke Version]
Pray For Me (Originally Performed by The Weeknd & Kendrick Lamar) [Karaoke Version]
Freaky Friday (Originally Performed by Lil Dicky feat. Chris Brown) [Karaoke Version] - Single
Sad! (Originally Performed by XXXTENTACION) [Karaoke Version] - Single
Walk It Talk It (Originally Performed by Migos feat. Drake) [Karaoke Version]
X (Originally Performed by Nicky Jam & J Balvin) [Karaoke Version]
Chun-Li (Originally Performed by Nicki Minaj) [Karaoke Version]
No Tears Left to Cry (Originally Performed by Ariana Grande) [Karaoke Version]
Plug Walk (Originally Performed by Rich The Kid) [Karaoke Version]
Be Careful (Originally Performed by Cardi B) [Karaoke Version]
This Is America (Originally Performed by Childish Gambino) [Karaoke Version]
Boo'd Up (Originally Performed by Ella Mai) [Karaoke Version]
The Middle (Originally Performed by Zedd, Maren Morris & Grey) [Karaoke Version]
In My Blood (Originally Performed by Shawn Mendes) [Karaoke Version]
I'm Upset (Originally Performed by Drake) [Karaoke Version]
Yikes (Originally Performed by Kanye West) [Karaoke Version]
Girls Like You (Originally Performed by Maroon 5 feat. Cardi B) [Karaoke Version]
I Like It (Originally Performed by Cardi B, Bad Bunny & J Balvin) [Karaoke Version]
Lucid Dreams (Originally Performed by Juice WRLD) [Karaoke Version]
In My Feelings (Originally Performed by Drake) [Karaoke Version]
Nonstop (Originally Performed by Drake) [Karaoke Version]
Bed (Originally Performed by Nicki Minaj feat. Ariana Grande) [Karaoke]
Taste (Originally Performed by Tyga feat. Offset) [Karaoke Version]
No Brainer (Originally Performed by DJ Khaled feat. Justin Bieber, Chance the Rapper & Quavo) [Karaoke Version]
FeFe (Originally Performed by 6ix9ine feat. Nicki Minaj and Murda Beatz) [Karaoke Version]
Big Bank (Originally Performed by YG feat. 2 Chainz, Big Sean and Nicki Minaj) [Karaoke Version]
Barbie Dreams (Originally Performed by Nicki Minaj) [Karaoke Version]
Youngblood (Originally Performed by 5 Seconds Of Summer) [Karaoke Version]
I Love It (Originally Performed by Kanye West and Lil Pump) [Karaoke Version]
Without Me (Originally Performed by Halsey) [Karaoke Version]
Money (Originally Performed by Cardi B) [Karaoke Version]
Thank U, Next (Originally Performed by Ariana Grande) [Karaoke Version]
Happier (Originally Performed by Marshmello & Bastille) [Karaoke Version]
ZEZE (Originally Performed by Kodak Black feat. Travis Scott & Offset) [Karaoke Version]
Drip Too Hard (Originally Performed by Lil Baby and Gunna) [Karaoke Version]
Mo Bamba (Originally Performed by Sheck Wes) [Karaoke Version]
Shallow (Originally Performed by Lady Gaga & Bradley Cooper) [Karaoke Version]
7 Rings (Originally Performed by Ariana Grande) [Karaoke Version]
Thotiana (Originally Performed by Blueface Feat. Cardi B) [Karaoke Version]
MIDDLE CHILD (Originally Performed by J. Cole) [Karaoke Version]
I Don't Care (Originally Performed by Ed Sheeran and Justin Bieber) [Karaoke Version]