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 0x3b12a91e15de7d46871466a84733fef8835abc8cf78ad69f1e0b8ed192e9ae44. 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/39fe93ce-337e-436d-88bb-79b10e8d1089.json and https://artists.proofprofile.net/proofs/artist/39fe93ce-337e-436d-88bb-79b10e8d1089.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Field of Hopes and Dreams (From "DELTARUNE Chapter 1") [Cover Version]
Theme of Onett (From "Earthbound") [Cover Version]
Mario and Peach's Theme (From "Paper Mario") [Cover Version]
Verdanturf Town (From "Pokémon Ruby & Sapphire") [Cover Version]
By Your Side. (From "Omori") [Cover Version]
Reunion: Mipha (From "The Legend of Zelda: Breath of the Wild") [Cover Version]
A Home For Flowers (Empty) (From "Omori") [Cover Version]
Snowy (From "Undertale") [Cover Version]
Bink's Sake (From "One Piece") [Cover Version]
Bink's Sake (From "One Piece") - Cover 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 → 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 0x6419328275274e442e5d11ae47ad995430b207e492cff360ca4cd9a5b77fbac7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZPJ32258789.
Fairy Flying (from "The Legend of Zelda: Ocarina of Time")
Winter Festival (from "Stardew Valley") [Cover Version]
Lost Library (From "Omori") [Cover Version]
Fallen Down (From "Undertale") [Cover Version]