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 0xc9435181debd6c127d2c9e2248edacf4471a929fcb110576676fa0e26b7dbd14. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e2ba05e-26a8-4ab6-b1e9-923ffcf2cb8a.json and https://artists.proofprofile.net/proofs/artist/1e2ba05e-26a8-4ab6-b1e9-923ffcf2cb8a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
A Collection of (Mostly) Love Songs (Sort of)
Chopvana, Classical Rock: Nocturne in F Minor, Op. 55, No. 1 / Smells Like Teen Spirit
Justice Medley: Safe and Sound / D.A.N.C.E. (Piano and Violin)
La La Land Piano Medley: City of Stars / Mia & Sebastian's Theme / Someone in the Crowd / Another Day of Sun
Piano DJ, Vol. 2 (Muse Medley): Hysteria / The 2nd Law: Unsustainable / Stockholm Syndrome / Butterflies and Hurricanes / Uprising / New Born / Knights of Cydonia
Piano DJ, Vol. 3: High School Throwbacks
Piano DJ, Vol. 4: Ave Maria / Ballade Pour Adeline
Piano DJ, Vol. 5 (Rod Gab Medley): Tamacun / Diablo Rojo
Instrumental Thrice & Circa Survive Medley: Blood Clots and Black Holes / Silhouette / Your Friends Are Gone / The Difference Between Medicine and Poison Is in the Dose
Instrumental Brand New Medley: 451 / Me vs. Maradona vs. Elvis
Instrumental Thrice, Circa Survive & Brand New Arrangements
Phantom Bride / Change (In the House of Flies) / Rosemary / Diamond Eyes
Words in the Water / For Miles / Of Dust and Nations / Hurricane
Daisy / The Quiet Things That No One Ever Knows / Jesus Christ
To Be Alone With You / For the Widows in Paradise, for the Fatherless in Ypsilanti
New Levels New Devils Medley: Yas / Nasty / Death Note
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 0xe5bd6890f02affd4f3b7eac497022694ba343bf87b311e51a228efab5f35d75d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2118025 — a six-check JSON result.
Twinkle, Twinkle, Little Star (LoFi Instrumental Reharmonization)
Canon in D - Solo Piano (Pianote Arrangement)