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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761e1c7691be000a779f182e0e7707b3fc0648c008c654cad2600671a2cb8130. 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/bf0e3d3a-60eb-46bd-ae10-386433dffe60.json and https://artists.proofprofile.net/proofs/artist/bf0e3d3a-60eb-46bd-ae10-386433dffe60.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Tender Feeling (From "Sword Art Online")
Title Theme (From "The Legend of Zelda: Ocarina of Time")
Emotional Anime: Piano Collection, Vol. I
Think Tenderly of You (from "Sword Art Online")
Sky Clearing Up (from "Weathering With You")
Video Game Memories: Piano Collection, Vol. I
Snowdin Town (from "Undertale") - Piano Version
Luma (from "Super Mario Galaxy") - Piano Version
Verdanturf Town (from "Pokémon: Ruby & Sapphire") - Piano Version
Revali's Theme (from "Zelda: Breath of the Wild") - Piano Version
Toy Day (from "Animal Crossing: New Horizons") - Piano Version
Resting Grounds (from "Hollow Knight") - Piano Version
To a New Adventure! (from "Mario & Luigi: Bowser's Inside Story") - Piano Version
Through the Sea of Time (From "Pokémon Mystery Dungeon: Explorers of Sky") [Piano Version]
Through the Sea of Time (From "Pokémon Mystery Dungeon: Explorers of Sky") - Piano Version
Through the Sea of Time (From "Pokémon Mystery Dungeon: Explorers of Sky", Piano Version)
Through the Sea of Time - From "Pokémon Mystery Dungeon: Explorers of Sky", Piano Version
Autumn Festival (From "Your Name") [Piano Version]
Autumn Festival (From "Your Name") - Piano Version
Hollow Knight (From "Hollow Knight") [Piano Version]
Hollow Knight (From "Hollow Knight") - Piano Version
Lost Girl (From "Deltarune") [Piano Version]
Lost Girl (From "Deltarune") - Piano Version
Video Game Memories: Piano Collection, Vol. II
Dragonborn (From "The Elder Scrolls V: Skyrim") - Piano Version
His Theme (From "Undertale") - Piano Version
The Amazon (From "DuckTales") - Piano Version
Main Theme (From "ENDER LILIES: Quietus of the Knights") - Piano Version
An Unwavering Heart (From "Pokémon: Black & White") - Piano Version
Ashes (From "Halo: Reach") - Piano Version
Mipha's Theme (From "Zelda: Breath of the Wild") - Piano Version
Guile's Theme (From "Street Fighter") - Piano Version
The Witch's Breath (From "ENDER LILIES: Quietus of the Knights") [Piano Version]
The Witch's Breath (From "ENDER LILIES: Quietus of the Knights") - Piano Version
Adventure Through the Light (From "Made in Abyss") [Piano Version]
Adventure Through the Light (From "Made in Abyss") - Piano Version
Spring Wind (From "Clannad") [Piano Version]
Spring Wind (From "Clannad") - Piano Version
Spring Wind (From "Clannad", Piano Version)
Spring Wind - From "Clannad", Piano Version
Goodnight (From "Pokémon Mystery Dungeon: Explorers of Sky") [Piano Version]
Goodnight (From "Pokémon Mystery Dungeon: Explorers of Sky") - Piano Version
Goodnight (From "Pokémon Mystery Dungeon: Explorers of Sky", Piano Version)
Goodnight - From "Pokémon Mystery Dungeon: Explorers of Sky", Piano Version
Main Menu (From "Pokémon Super Mystery Dungeon") [Piano Version]
Main Menu (From "Pokémon Super Mystery Dungeon") - Piano Version
Main Menu (From "Pokémon Super Mystery Dungeon", Piano Version)
Main Menu - From "Pokémon Super Mystery Dungeon", Piano Version
Snowbelle City (From "Pokémon: X & Y") [Piano Version]
Snowbelle City (From "Pokémon: X & Y") - Piano 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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca672f821531fa618d732ad5493cff72d7502a8f477dfa1d8c2bfd4233423742. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZPJ32164977.
Spirit of Fire (From "Halo Wars") [Piano Version]
Spirit of Fire (From "Halo Wars") - Piano Version
A Bewitching Dance - Mizutsune (From "Monster Hunter Rise") [Piano Version]
A Bewitching Dance - Mizutsune (From "Monster Hunter Rise") - Piano Version
Wild Battle Music (From "Pokémon Legends: Arceus") [Piano Version]
Wild Battle Music (From "Pokémon Legends: Arceus") - Piano Version
Wild Battle Music (From "Pokémon Legends: Arceus", Piano Version)
Wild Battle Music - From "Pokémon Legends: Arceus", Piano Version
Viridian Forest (From "Pokémon: Gold & Silver") [Piano Version]
Viridian Forest (From "Pokémon: Gold & Silver") - Piano Version
Grandpa's Theme (From "Stardew Valley") [Piano Version]
Grandpa's Theme (From "Stardew Valley") - Piano Version
He's a Pirate (From "Pirates of the Caribbean") [Piano Solo]
He's a Pirate (From "Pirates of the Caribbean") - Piano Solo
Zelda: Breath of the Wild - Piano Kingdom
Great Fairy Fountain (From "Zelda: Breath of the Wild") - Piano Version
Prince Sidon's Theme (From "Zelda: Breath of the Wild") - Piano Version
Flight Range (From "Zelda: Breath of the Wild") - Piano Version
Tarrey Town (From "Zelda: Breath of the Wild") - Piano Version
The Champions' Ballad (From "Zelda: Breath of the Wild") - Piano Version
Escape Through the Snow (From "Pokémon Mystery Dungeon: Rescue Team", Piano Version)
Escape Through the Snow - From "Pokémon Mystery Dungeon: Rescue Team", Piano Version
Escape Through the Snow (From "Pokémon Mystery Dungeon: Rescue Team") [Piano Version]
Escape Through the Snow (From "Pokémon Mystery Dungeon: Rescue Team") - Piano Version
Lit(var) (From "A Silent Voice") [Piano Version]
Lit(var) (From "A Silent Voice") - Piano Version
Surf (From "Pokémon: Red & Blue") [Piano Version]
Surf (From "Pokémon: Red & Blue") - Piano Version
Ginpatsu no Lullaby (From "Hunter x Hunter") [Piano Version]
Ginpatsu no Lullaby (From "Hunter x Hunter") - Piano Version
A Tender Feeling (From "Sword Art Online") - Piano Version
At Our Parting (From "Sword Art Online") - Piano Version
Friendly Feelings (From "Sword Art Online") - Piano Version
A Tiny Love (From "Sword Art Online") - Piano Version
Gracefully (From "Sword Art Online") - Piano Version
At Nightfall (From "Sword Art Online") - Piano Version
You Are Not Alone (From "Sword Art Online") - Piano Version
Reconciliation (From "Sword Art Online") - Piano Version
Dance of the Moonlight Jellies (From "Stardew Valley") [Piano Version]
Dance of the Moonlight Jellies (From "Stardew Valley") - Piano Version
Gold and Oden (From "One Piece") [Piano Version]
Gold and Oden (From "One Piece") - Piano Version
Overture (From "Stardew Valley") [Flute & Piano Version]
Overture (From "Stardew Valley") - Flute & Piano Version