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 0x206664531782ca9b80ec529e1ddc003395af59ecaffa57f71a40da24e7b676e8. 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/4263bf0d-3037-4b9d-98aa-2fed7f1776cb.json and https://artists.proofprofile.net/proofs/artist/4263bf0d-3037-4b9d-98aa-2fed7f1776cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Zora's Domain (from "The Legend of Zelda: Ocarina of Time") [Remix]
Welcome to the City (from "Deltarune: Chapter 2") [Synthpop Cover]
Last Day (from "The Legend of Zelda: Majora's Mask")
Windy & Co. (from "Conker's Bad Fur Day")
Mt. Chimney (from "Pokémon Ruby, Sapphire & Emerald")
Mauville Melodies: A Jazz Tribute to Pokémon RSE
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 0x2007601c6f7562042c84edeb6c122428287258c93d9c6e90f46de33a4fe4fec8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZPJ32178602.
Koopa Castle (from "Mario Kart 64") - Ska Cover
Skario Kart: A Ska Tribute to Mario Kart 64
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e50b7bd634aa28b1dca6c4b29fe9c33f410bcd139ef7bc71a1fb8e58ae3b12. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZPJ32127303.
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
Theme of Moonside (from "EarthBound") - Lo-fi Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35080a293c495de2a93216fef18ab7142ae5e4e04b9979200d1d1d6301cb9831. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/QZPJ32192829.
Termina Field (from "The Legend of Zelda: Majora's Mask")
Milk Bar: An EDM Tribute to Majora's Mask
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4bd1e8736c79960dc7a9765533d4fdf573f2e3234156c1f8f88c65b887f3f6a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZPJ32289004.
Torvus Bog Subterranean (from "Metroid Prime 2: Echoes")
Wave Beam: A Synthwave Tribute to Metroid Prime
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc109101cbd5af68e850034f4d929d4e89451e0074442a43698b2126e679841db. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QZPJ32324371.