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 0x89a93f13a4c3f586d5f22a22710c3d3a05e75ec01e654eaa5a7fb0836922643c. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95550f32-c49c-48ba-af1e-3158b18b0c39.json and https://artists.proofprofile.net/proofs/artist/95550f32-c49c-48ba-af1e-3158b18b0c39.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Clannad - Dango Dai Kazoku (Cover Español)
Dragon Ball Super OP 1 - Chozetsu Dynamic (Cover)
Tokyo Ghoul OP 1 - Unravel (Español Cover)
Yakusoku no Neverland OP - Touch Off (Español Cover)
Dragon Ball Super - Blizzard (Español Cover)
Shingeki no Kyojin - Name of Love (Cover)
Captain Tsubasa 2018 - Start Dash! (Cover)
Naruto Shippuden OP 16 - Silhouette (Cover)
Shingeki no Kyojin - Requiem der Morgenrote (Cover Español)
Hunter x Hunter OP 1 - Departure (Cover Español)
Boruto OP 1 - Baton Road (Cover Español)
Black Clover ED 10 - New Page (Cover Español)
Fullmetal Alchemist Brotherhood OP 1 - Again (Cover)
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 0x430825111cee4e09e80860e77c1b54a8e59660c5673414d13662fd544bdf358d. 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/QZPJ32311119.
Amatsuki - Drowning in Love (Cover Español)
Boku no Hero OP 4 - Odd Future (Cover Español)
Dragon Ball Super - Ultimate Battle (Cover)
Dragon Ball GT OP - Dan Dan Kokoro Hikareteku (Cover)
Black Clover OP 1 - Haruka Mirai (Cover Español)
Dragon Ball Super OP 2 - Limit Breaker x Survivor
Jujutsu Kaisen OP 3 - Ao no Sumika (Cover)