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 0x0eef9a45b324c87cdf48799d134b69eec08a4e4c2fc88e9e7afafe089f0966e1. Chain 2 (Bitcoin): anchored in block 953954 (2026-06-16T14:18:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/25357eb1-f6b6-41d7-a812-477da6d112a4.json and https://artists.proofprofile.net/proofs/artist/25357eb1-f6b6-41d7-a812-477da6d112a4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Acacia (From "Pokémon Gotcha!") [English]
Kaikai Kitan (From "Jujutsu Kaisen") [English]
Kaikai Kitan (From "Jujutsu Kaisen") - English
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 0xce190bf3cde5eacec93f6ae2112f4ac5c9b4b9cf3879fcdb6a5a0ee45fd9a3a4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZGWX2052907.
Homura (From "Demon Slayer the Movie: Infinity Train") [English]
Central (From "Boruto: Naruto Next Generations")
Lost in Paradise (From "Jujutsu Kaisen") [English Version]
Breaking Dawn (From "Noblesse") [English Version]
Kaimin! Anmin! Suya Rhyst Seikatsu (From "Sleepy Princess in the Demon Castle")
Grandeur (From "Black Clover") [English]
Baku (From "Boruto: Naruto Next Generations") [English]
Beautiful (From "Black Clover") [English]
Answers (From "Boruto") [English Version]
Hollow Hunger (From "Overlord") [English Cover]