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 0xcc79d9619d901379fe53b5d7915ac08ad6f86f72376a92bf5b70c84ab6f11622. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3c7fe60-1ed0-4a47-8f48-5647b494c406.json and https://artists.proofprofile.net/proofs/artist/b3c7fe60-1ed0-4a47-8f48-5647b494c406.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Karaoke Hits from - Sister Act - The Movies
Karaoke Hits from - Jekyll & Hyde - The Musical
Many Of Horror (When We Collide) - Karaoke Version
Karaoke Hits - Swing & Jazz Classics Vol. 1
When We Collide (In The Style of Matt Cardle)
Make You Feel My Love (In The Style of Adele)
Forget You (In The Style of The Glee Cast)
Your Song (In The Style of Ellie Goulding)
Ultimate Karaoke Downloads For Girls Vol. 1
Ultimate Karaoke Downloads For Boys Vol. 2
Ultimate Karaoke Downloads For Boys Vol. 1
Ultimate Karaoke Downloads For Boys Vol. 3
Ultimate Karaoke Downloads For Girls Vol. 2
Ultimate Karaoke Downloads For Girls Vol. 3
Sister Act (The Musical) - Karaoke Version
Karaoke Hits from - Blood Brothers - The Musical
Karaoke Hits from - Oliver! - The Musical
Karaoke Hits from - The Rocky Horror Picture Show – The Movie
Karaoke - Rod Stewart The Great American Songbook
Karaoke Hits from - Chitty Chitty Bang Bang - The Musical
Karaoke Hits from - Footloose - The Movie
Karaoke Hits from - Les Misérables - The Musical
Karaoke Hits from - Bugsy Malone – The Movie
Karaoke Hits from - The Lion King - The Movie
Karaoke Downloads - Mamma Mia! - The Movie
Love Never Dies (The Musical) - Karaoke Version
Karaoke Hits from - Cabaret - The Musical
Karaoke Hits from - Copacabana - The Musical
For Your Entertainment - Karaoke Version
Empire State Of Mind (Part II) Broken Down - Karaoke Version
Karaoke Hits From - Whistle Down The Wind
Karaoke Hits from - Joseph an the Amazing Technicolour Dreamcoat - The Musical
Karaoke Hits from - Miss Saigon - The Musical
Karaoke Hits from - A Chorus Line - The Musical
Karaoke - Mixed Female Chart Hits Vol. 1
December Song (I Dreamed Of Christmas) - Karaoke Version
I Want To Know What Love Is - Karaoke Version
Karaoke Downloads - Bill Haley & His Comets
Latest Charts Japan - Karaoke (カラオケ 最新チャー)
Karaoke Downloads - Female Standards Vol.11
Karaoke Downloads - Female Standards Vol.1
Karaoke Downloads - Female Standards Vol.6
Karaoke Downloads - Female Standards Vol.10
Karaoke Downloads - Male Standards Vol.3
Karaoke Downloads - Male Standards Vol.8
Karaoke Downloads - Female Standards Vol.7
Karaoke Downloads - Female Standards Vol.4
Karaoke Downloads - Female Standards Vol.3
Karaoke Downloads - Female Standards Vol.8
Karaoke Downloads - Male Standards Vol.1
Karaoke Downloads - Female Standards Vol.12
Karaoke Downloads - Male Standards Vol.4
Karaoke Downloads - Female Standards Vol.5
Karaoke Downloads - Male Standards Vol.10
Karaoke Downloads - Male Standards Vol.5
Karaoke Downloads - Male Standards Vol.2
Karaoke Downloads - Male Standards Vol.6
Karaoke Downloads - Male Standards Vol.7
Karaoke Downloads - Female Standards Vol.9
Karaoke Downloads - Male Standards Vol.16
Karaoke Downloads - Male Standards Vol.13
Karaoke Downloads - Female Standards Vol.17
Karaoke Downloads - Female Standards Vol.22
Karaoke Downloads - Male Standards Vol.20
Karaoke Downloads - Female Standards Vol.13
Karaoke Downloads - Male Standards Vol.19
Karaoke Downloads - Female Standards Vol.20
Karaoke Downloads - Female Standards Vol.18
Karaoke Downloads - Female Standards Vol.14
Karaoke Downloads - Male Standards Vol.11
Karaoke Downloads - Male Standards Vol.12
Karaoke Downloads - Male Standards Vol.14
Karaoke Downloads - Male Standards Vol.15
Karaoke Downloads - Male Standards Vol.18
Karaoke Downloads - Female Standards Vol.15
Karaoke Downloads - Male Standards Vol.17
Karaoke Downloads - Female Standards Vol.16
Karaoke Downloads - Female Standards Vol.21
Karaoke Downloads - Female Standards Vol.19
Karaoke Downloads - Male Standards Vol.23
Karaoke - Chart Hits - Most Downloaded Vol.2
Karaoke - Frank Sinatra - Most Downloaded
Karaoke - Classical Songs - Most Downloaded
Karaoke Downloads - Male Standards Vol.22
Karaoke - 1970's - Most Downloaded Vol.2
Karaoke Downloads - Female Standards Vol.25
Karaoke Downloads - Male Standards Vol.24
Karaoke - Chart Hits - Most Downloaded Vol.1
Karaoke - Swing & Jazz - Most Downloaded Vol.1
Karaoke Downloads - Male Standards Vol.21
Karaoke Downloads - Female Standards Vol.23
Karaoke - Swing & Jazz - Most Downloaded Vol.2
Karaoke Downloads - Female Standards Vol.24
Karaoke - 1960's - Most Downloaded Vol.2
Karaoke - 1980's - Most Downloaded Vol.1
Karaoke - 1970's - Most Downloaded Vol.1
Karaoke - Barry Manilow - Most Downloaded
Karaoke - 1980's - Most Downloaded Vol.2
Karaoke - 1970's - Most Downloaded Vol.3
Karaoke - 1960's - Most Downloaded Vol.1
Karaoke Downloads - Female Love Songs Vol.5
Karaoke Downloads - Female Love Songs Vol.2
Karaoke Downloads - Female Love Songs Vol.1
Karaoke Downloads - Female Love Songs Vol.4
Karaoke Downloads - Female Love Songs Vol.6
National Anthems - Karaoke Versions Vol.2
Karaoke Downloads - Red Hot Chili Peppers
Karaoke Downloads - Hannah Montana - The Movie
Karaoke Hits from - Tell Me On A Sunday - The Musical
Karaoke Hits from - Fiddler On The Roof - The Musical
Karaoke Hits from - Beauty & The Beast - The Movie
Karaoke Hits from - Hercules - The Movie
Karaoke Hits from - Jesus Christ Superstar - The Musical
Karaoke Hits from - Singin' In The Rain - The Musical
Karaoke Hits from - The Phantom Of The Opera - The Musical
Karaoke Hits from - We Will Rock You - The Musical
Karaoke Hits from - Sunset Boulevard - The Musical
Karaoke Hits from - Kiss Me Kate - The Musical
Karaoke Hits from - Bombay Dreams - The Musical
Karaoke Hits From - Saturday Night Fever
Somewhere Over The Rainbow - Karaoke Version
The First Time Ever I Saw Your Face - Karaoke Version
I’d Rather Be With You – Karaoke Version
This Ain’t A Love Song – Karaoke Version
The House That Built Me – Karaoke Version
The Cherrytree Sessions – Karaoke Version
Waka Waka (This Time For Africa) – Karaoke Version
Every Teardrop Is A Waterfall (Originally Performed By Coldplay)
Beautiful (Originally Performed By Haley Reinhart)
The Lazy Song (Originally Performed By Bruno Mars)
PriceTag (Acoustic Version) (Originally Performed By Jessie J)
Set Fire To The Rain (Originally Performed By Adele)
Turning Tables (Originally Performed By Adele)
Born This Way (Originally Performed By Lady Gaga)
Rolling In The Deep (Originally Performed By Adele)
Someone Like You (Originally Performed By Adele)
The Edge of Glory (Originally Permormed By Lady Gaga)
Telling The World (Originally Performed By Taio Cruz)
Chasing Cars (Originally Performed By Clare Teal)
Swagger Jagger (Originally Performed By Cher Lloyd)
When We Were Young (Originally Performed By Take That)
Jambalaya (Originally Performed By The Carpenters
Glad You Came (Originally Performed By The Wanted)
California King Bed (Originally Performed By Rihanna)
Run The World (Girls) (Originally Performed By Beyoncé)
Brighter Than The Sun (Originally Performed By Colbie Caillat)
I Need a Dollar (Originally performed by Aloe Blacc)
The A Team (Originally performed by Ed Sheeran)
Rolling In The Deep (Originally performed by Linkin Park)
Don't Cry For Me Argentina (Karaoke Version)
As Long As He Needs Me (Karaoke Version)
The Christmas Song (Chestnuts Roasting On An Open Fire) (Karaoke Version)
I Wish It Could be Christmas Everyday (Karaoke Version)
Where Are You Christmas? (Karaoke Version)
I Believe In Father Christmas (Karaoke Version)
Thank God It's Christmas (In the Style of Queen) [Karaoke Version]
Santa Claus Got Stuck Up The Chimney (Karaoke Version)
It Came Upon the Midnight Clear (Karaoke Version)
O Come, All Ye Faithful (Karaoke Version)
Do You Hear What I Hear? (Karaoke Version)
Once in Royal David's City (Karaoke Version)
I Saw Mommy Kissing Santa Claus (Karaoke Version)
God Rest Ye Merry Gentlemen (Karaoke Version)
Merry Christmas Everyone (Karaoke Version)
I'll Be Home For Christmas (Karaoke Version)
The Shepherds Farewell (Karaoke Version)
Rudolph The Red Nosed Reindeer (Karaoke Version)
Let It Snow! Let It Snow! Let It Snow! (Karaoke Version)
We Three Kings of Orient Are (Karaoke Version)
Rockin Around The Christmas Tree (Karaoke Version)
Hark! the Herald Angels Sing (Karaoke Version)
Do They Know It's Christmas? (Karaoke Version)
While Shepherds Watched (Karaoke Version)
We Wish You A Merry Christmas (Karaoke Version)
Merry Christmas Darling (Karaoke Version)
In The Bleak Midwinter (Karaoke Version)
Good Christmas Men, Rejoice (Karaoke Version)
Santa Bring My Baby Back (To Me) (Karaoke Version)
O Come, O Come Emmanuel (Karaoke Version)
Happy Christmas (War Is Over) (Karaoke Version)
All I Want For Christmas Is You (Karaoke Version)
Here Comes Santa Claus (Karaoke Version)
Have Yourself a Merry Little Christmas (Karaoke Version)
Ding Dong! Merrily on High (Karaoke Version)
Christmas Medley - Band Aid - I Wish It Could Be Christmas - Merry Xmas Everyone - I Believe In Father Christmas (Karaoke Version)
See Amid The Winters Snow (Karaoke Version)
I Wish It Could Be Christmas Everyday (Karaoke Version)
Wonderful Christmastime (Karaoke Version)
Rabiosa (Spanish Version) [In the Style of Shakira Feat. El Cata] [Karaoke Version]
As Time Goes By (In the Style of Rod Stewart and Queen Latifah) [Karaoke Version]
Beautiful Liar (In the Style of Beyonce and Shakira) [Karaoke Version]
You'll Never Walk Alone (In the Style of Gerry and the Pacemakers) [Karaoke Version] - Single
I'm Alive (Dance Version) [In the Style of Celine Dion] [Karaoke Version]
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c020314453cd44457613b53058a9391aa73e66ab8ab7b1303f0d3c08417378. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:33:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6R21410326.