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 0x66c00fb186708d8b286f8026d71b9e893af55e561204ec057929c284a3860899. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9eb5e61e-3fff-45fe-b679-c107764cfd33.json and https://artists.proofprofile.net/proofs/artist/9eb5e61e-3fff-45fe-b679-c107764cfd33.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sorry (Originally Performed by Beyonce) [Piano Karaoke Version]
Write On Me (Originally Performed by Fifth Harmony) [Piano Karaoke Version]
All I Ask (Originally Performed by ADELE) [Piano 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 0x724c4591db7447dc439cc7addd13eea2daf33456df3dd086e2ec496b40e1805b. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/USE831566225.
Moonlight (Originally Performed by Ariana Grande) [Piano Version]
Side to Side (Originally Performed by Ariana Grande & Nicki Minaj) [Piano Version]
Treat You Better (Originally Performed by Shawn Mendes) [Piano Version]
Just Like Fire (Originally Performed by Pink) [Piano Version]
One Dance (Originally Performed by Drake) [Piano Version]
7 Years (Originally Performed by Lukas Graham) [Piano Version]
Change (Originally Performed by Christina Aguilera) [Piano Version]
Kill 'Em with Kindness (Originally Performed by Selena Gomez) [Piano Version]
Tears (Originally Performed Clean Bandit & Louisa Johnson) [Piano Version]
Not Today (Originally Performed by Imagine Dragons) [Piano Version]
Crash (Originally Performed by Usher) [Piano Version]
Close (Originally Performed by Nick Jonas & Tove Lo) [Piano Version]
Sledgehammer (Originally Performed by Rihanna) [Piano Version]
Body Say (Originally Performed by Demi Lovato) [Piano Version]
Rise (Originally Performed by Katy Perry) [Piano Version]
Make Me (Originally Performed by Britney Spears) [Piano Version]
Cold Water (Originally Performed by Major Lazer feat. Justin Bieber & MØ) [Piano Karaoke Version]
Let It Go (Originally Performed by James Bay) [Piano Karaoke Version]
Setting the World On Fire (Originally Performed by Kenny Chesney & Pink) [Piano Karaoke Version]
Three Empty Words (Originally Performed by Shawn Mendes) [Piano Karaoke Version]
Closer (Originally Performed by The Chainsmokers & Halsey) [Piano Version]
Mercy (Originally Performed by Shawn Mendes) [Piano Version]
This Town (Originally by Niall Horan) [Piano Version]