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 0xf17a277d0ef5266a73e9f46b2803f4e598c943421e94e3507b0ea9e35309bf96. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b635130e-9ace-41ae-bb47-184ab21b59af.json and https://artists.proofprofile.net/proofs/artist/b635130e-9ace-41ae-bb47-184ab21b59af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Blaster Master Original Soundtrack Dark Remix
The Guardian Legend Original Soundtrack (Dark Remix)
Contra Original Soundtrack (Retro-Synth Remix)
Mega Man 3 Original Soundtrack Synthwave
Double Dragon Original Soundtrack Synthwave
Ninja Gaiden Original Soundtrack (Dark Remix)
Battletoads Original Soundtrack (Synth Retro Remix)
Journey to Silius Original Soundtrack (Dark Remix)
Castlevania 2 Simon's Quest (Dark Remix)
Mega Man 1 Original Soundtrack Synthwave
Mega Man 2 Original Soundtrack (Synthwave)
Double Dragon 2 Original Soundtrack (Synthwave)
Ninja Gaiden 2 The Dark Sword of Chaos Original Soundtrack (Dark Remix)
Mega Man 4 Original Soundtrack Synthwave
Super Metroid Original Soundtrack (Dark Ambient)
Batman NES Original Soundtrack (Synth Remix)
Golden Axe Original Soundtrack (Darksynth)
Gremlins 2 NES Original Soundtrack (Darksynth)
Rad Racer Original Soundtrack (Synthwave)
Teenage Mutant Ninja Turtles 2 NES Original Soundtrack (Synth Remix)
Mega Man 5 Original Soundtrack (Synthwave)
Streets of Rage 2 Original Soundtrack (EDM Remix)
Altered Beast Original Soundtrack (Synthcore)
Final Fantasy 1 Original Soundtrack (Darksynth)
Castlevania 3 Dracula's Curse Original Soundtrack (Darksynth)