1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ca3bcf93d9b9be27bde04001001bbab448187a40abc09492520e21b75d3cf1. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ee79693-604e-4cd2-80f9-e22aa3e8acbc.json and https://artists.proofprofile.net/proofs/artist/6ee79693-604e-4cd2-80f9-e22aa3e8acbc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
When the Morning Glory Falls - Piano Version
Loneliness and the Future - Piano Version
I'm getting on the bus to the other world, see ya - Piano Version
Perhaps I'll be able to become the sun - Piano Version
What if this isn't a slave? - Piano Version
Being low as dirt taking what's important from me
If there was an Endpoint. - Piano Version
Fall 2022 Anime Piano Covers (OP and ED 1-6)
200 Million Centimeter Long Blades - Piano Version
Fall 2022 Piano Covers Compilation (ED 7 -12)
Under Mentality Piano Arrangement (+ What Sort of Ending Are You Wishing For?)
The Dissatisfaction and Discontent Disease - Piano
I Hope You Can Be an Adult Someday. - Piano
It Might be Painful, But I Still Love It - Piano
What Sort of Ending Are You Wishing For? - Piano
Playing Piano in the Shadow of Summer (Piano)
I'm getting on the bus to the other world, see ya! (Piano)
Perhaps I'll be able to become the Sun (Piano)
Being low as dirt, taking what's important from me (Piano)
The end of the rainy season (Piano) [Tsuyuake No]
Summer wind and sunrise (Piano) [Natsu no Kaze Goraikou]
The Dissatisfaction and Discontent Disease (Piano)
I Hope You Can Be an Adult Someday. (Piano)
It Might Be Painful, but I Still Love It. (Piano)
What Sort of Ending Are You Wishing For? (Piano)