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 0x5f9843f7a78fa9889107ae7fcfd06078fecf20b4ff3c607b20142ce5a50e583b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/615c2a6b-9b72-4cde-bace-4126272e4186.json and https://artists.proofprofile.net/proofs/artist/615c2a6b-9b72-4cde-bace-4126272e4186.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
People / Town Theme (from "Dragon Quest I")
My Road My Journey / Sueños de Antaño (from "Dragon Quest II / Las Aventuras de Fly")
Town Theme (from "Zelda II: The Adventure of Link")
Dire, Dire Docks (from "Super Mario 64")
Mabe Village (from "The Legend of Zelda: Link's Awakening")
Zelda's Lullaby (from "The Legend of Zelda: Ocarina of Time")
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 0xa0a5a82d38e1fa53cdeb72479f80de7d770e3de6a88015714868267bc7c1a623. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZMEP2593066.
Zora's Domain (from "The Legend of Zelda: Ocarina of Time")
Forrest of Illusion (from "Super Mario World")
Piranha Plant's Lullaby (from "Super Mario 64")
A Moment of Relief (from "Resident Evil: Code Veronica")
Vampire Killer (from "Castlevania") ~ lofi
Costa del Sol (from "Final Fantasy VII") ~ lofi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7519ff263216281e796c5ee3c0d45ab1d3f5e7b9b23d761b588a42f541fb55. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZZ7R2517513.
The Last of Us main theme (from The Last of Us) ~ lofi
Light through the Leaves of Love (from "Dragon Quest XI") ~ lofi
Shenhua ~ Sedge Flower (from "Shenmue") ~ lofi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902f4745049c641ee0a69f5a481499acb8362bb697b8534a12ac8586c82bc3d2. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZZ7X2567121.
Mary's Letter (from "Silent Hill 2") ~ lofi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82683b139b0d8dfd3b38d55bf27e6aece09960a18130700417b8d5e1b28966d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QT3F22599418.
Secure Place (from "Resident Evil 2") ~ lofi
Free From Fear (from "Resident Evil 3") ~ lofi
Lost Woods (from "The Legend of Zelda: Ocarina of Time") ~ lofi
Green Hill Zone (from "Sonic the Hedgehog") ~ jazzy lofi
Grass Land (from "Super Mario Bros. 3") ~ lofi
Main theme (from "Super Mario Bros.") ~ lofi