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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812016ddf1162d0156f87ef47727e5e2006b0a360d152a670560b4e8d5252851. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28dd85c8-ffd6-4f0e-8dcd-4a5c45f85a98.json and https://artists.proofprofile.net/proofs/artist/28dd85c8-ffd6-4f0e-8dcd-4a5c45f85a98.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kakkara Desert Theme ~ Secret Of The Arid Sands (Secret of Mana)
Divine Bloodlines (Castlevania : Rondo of Blood)
Night Fall ~ Holly's Theme (Metal Gear 2 : Solid Snake)
Light Of Nibel (Ori And The Blind Forest)
Dream Of The Shore Near Another World (Chrono Cross)
Fire Field (From "F-Zero") [feat. Draskon]
Stickerbrush Symphony (feat. Dacian Grada) [From "Donkey Kong Country 2"]
Windmill Hills (From "Donkey Kong Country : Tropical Freeze")
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8194f97c2dfc4b16a92d24cbd0d03e1cb7567ba758423e02283f32f5a64a43c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USY281615832.
In the Face of Evil (From "Hotline Miami 2: Wrong Number")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743153c8de578401beeefa89664989119567aaaba1c3e31e2c4fee4468c12704. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZ22B1838765.
In A Snow-Bound Land (From "Donkey Kong Country 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabeba0ac4d3647af86695e0982b6c3e4db078bc9d8e65cc2d5e8812c05cbcc17. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZGWX2143221.
Majora's Theme (From "The Legend Of Zelda : Majora's Mask")
Title Screen (From "Metroid 2: Return of Samus")