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 0x17f97d00d348fb16e834de1f4ba6a2396158d708088f367e82c301eb0782bde8. 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/bcb7051f-8ae9-4361-a161-ee2bc7341997.json and https://artists.proofprofile.net/proofs/artist/bcb7051f-8ae9-4361-a161-ee2bc7341997.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Karaoke - Hits of Whitney Houston Vol. 1
Karaoke - Hits of Diana Ross and the Supremes
Male Karaoke Hits of the 50s & 60s Vol. 3
Help I'm White and I Can't Get Down (In the Style of Geezinslaw Brothers) [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 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 0x592af737cadb4814cb69e0a90b881ada038d29f047b819126143f5ffd4aa8f7d. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USA371611017.
Male Karaoke Hits of the 50s & 60s Vol. 1
Karaoke - Hits of Whitney Houston Vol. 2
Male Karaoke Hits of the 50s & 60s Vol. 2
Male Karaoke Hits of the 50s & 60s Vol. 4
Karaoke - Hits of Michael Jackson Vol. 1
Karaoke - Female R&B Hits of the 80s & 90s Vol. 1
Karaoke - Male R&B Hits of the 70's Vol. 2
Karaoke - Male R&B Hits of the 60s Vol. 2
Karaoke - Male R&B Hits of the 60s Vol. 1
Karaoke - Male R&B Hits of the 70s Vol. 1
Karaoke - Female R&B Hits of the 60s & 70s
Karaoke - Female R&B Hits of the 80s & 90s Vol. 2
Karaoke - Hits of The Blues Brothers & Young Rascals
Karaoke - Male R&B Hits of the 70's Vol. 3
Karaoke - Hits of Ronnie Milsap & B.J. Thomas
Karaoke - Hits of Tanya Tucker and Wynonna Judd
Karaoke - Hits of Kenny Rogers and Eddie Rabbit
When You Say Nothing At All (In the Style of Allison Krauss and Union Station) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4730b11f97b53b16003804d666b9d99cc95cf102933f12c695c1ca0e3323657c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USA371612179.
Karaoke - Hits of Glenn Campbell and Hank Williams Jr.
Karaoke - Hits of John Michael Montgomery and Dwight Yoakum
Karaoke - Hits of John Cougar Mellencamp
Karaoke - Hits of Crosby, Stills, Nash and Young
Female Karaoke Hits of the 80's and 90's Vol. 4
Female Karaoke Hits of the 80's and 90's Vol. 3
Female Karaoke Hits of the 80's and 90's Vol. 5
Female Karaoke Hits of the 80's and 90's Vol. 1
Female Karaoke Hits of the 80's and 90's Vol. 2
Female Karaoke Hits of the 80's and 90's Vol. 6
Karaoke - Hits of Bruce Hornsby and Don Henley
Karaoke - Hits of Reba McEntire and Patty Loveless
Karaoke - Musical - Hits of Les Miserables
Karaoke - Musical - Hits of West Side Story
Karaoke - Hits of Lori Morgan, Kathy Mattea and Robin Lee
Karaoke - Broadway - Hits of Phantom of the Opera
Karaoke - Musicals - Hits of Fiddler on the Roof
Karaoke - Hits of Paul McCartney and Hall and Oates
Karaoke - Hits of the Righteous Brothers
Karaoke - Hits of Kool and The Gang and K.C. and The Sunshine Band
Karaoke - Hits of the Four Tops and the Temptations
Karaoke - Hits of New Kids On The Block and Others
Karaoke - Hits of Harry Chapin and Gordon Lightfoot
Karaoke - Hits of Smokey Robinson and the Drifters
Karaoke - Hits of Lionel Richie and Los Lobos
Karaoke - Hits of Paula Abdul and Amy Grant
Karaoke - Hits of James Taylor and Loggins and Messina
Karaoke - Hits of the Everly Brothers and Others
Female Karaoke Hits of the 80s and 90s Vol. 7
Karaoke - Hits of Bruce Hornsby/Don Henley