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 0xf850dce13355a600ac6d2e1434986a875feedefa45a499059e3d98073eaf6bb6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6e62c73a-a658-4840-9fbd-abd5dfa7ebf6.json and https://artists.proofprofile.net/proofs/artist/6e62c73a-a658-4840-9fbd-abd5dfa7ebf6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Like a Glint of Light (From "Tales of Symphonia")
Battle! Dialga/Palkia (Pokémon Diamond/Pearl/Platinum)
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 0x72b33d3dfc0efab6e22535754ec982d0ebad832021f97df1d6d431c88e4cb355. 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/USE831517891.
Area 6 Guitar Medley (From "Star Fox 64")
Town of a Wind and Ruins (from "Tales of Symphonia")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c75ec51e2a3b4751640ae49defcc033a9182cafbcd321c167ac5749a28b0a11. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USE831565391.
Oath to Castle: Castle Theme (From "Super Mario World") / Oath to Order [From "The Legend of Zelda: Majora's Mask"]
Fi's Theme (From: "The Legend of Zelda: Skyward Sword")
Staff Roll (from "The Legend of Zelda: A Link to the Past")
Gerudo Town (Night) [From "The Legend of Zelda: Breath of the Wild"]
Bubblaine: Underwater (From "Super Mario Odyssey")
Objection! (From "Phoenix Wright: Ace Attorney")
The Spirit Tree (From "Ori and the Blind Forest")
Rival Battle (From "Pokémon Ruby / Sapphire / Emerald")
Waltz of the Boos (From "Super Mario Galaxy")
Grandma's Theme but It's Christmas (From "The Legend of Zelda: The Wind Waker")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed95f41578167ccc0f69f65b584e260ddd2c6aab31eff509798758a4c46bea5. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/QZ22B1851287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6b4677d1188748e3b583e9a08ee0cb3d20beef3759a0d2a41a6b67730b48ce. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/QZ22B1963553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296b7b2838e32ce6bb25c45d0a85d101f6e26894a30edbf530686326cd28982c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZGWX2010353.
Still Alive Tropical House Mix (From "Mirror's Edge")
Green Greens (From "Kirby's Dream Land")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce0cdf05c73126c75776b0eb449a5b79418618a7ca683bdfe99aebf61ffe6bb. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USE830928698.
Another Winter (from "Scott Pilgrim vs. The World: The Game")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb6bca58e41f67876b1863c2fd72a32a8837ab6aebb4d25b2a018a286c9e773. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USY281611831.