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 0x354c0958c0264a44e4149c8b0ffb41c93de579d0c23a32e97cf0cba8b6140e6e. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fedeee6e-f8f6-4190-ab44-19ccaf793730.json and https://artists.proofprofile.net/proofs/artist/fedeee6e-f8f6-4190-ab44-19ccaf793730.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Voice of No Return (From "Nier Automata") [Instrumental]
Unwound Future Theme (From "Professor Layton and the Unwound Future")
Curious Village Ending Theme (From "Professor Layton and the Curious Village")
Baka Mitai (From ''Yakuza 0'') [Ballad 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 0x98ac27997fdc1d37177010153a85e982c41c87a17d9e09a6fd526b86587033c2. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:34:46Z), 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/QZGWX2048908.
Professor Layton's Theme (From "Professor Layton and the Curious Village")
Unfinished Frescoes (From "Genshin Impact") [Violin Duet]
Qilin's Prance (From "Genshin Impact") [Orchestral]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e99ef9ed35ee27254f282bae348d0c51503ee0fd7ef74975ae1077cc28b961d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZPJ32225616.
Peaceful Hike (Qingce Daytime) [Violin and Piano]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3911f2121c276299865a45994169c68348307bc1d084e969f57c170f45c3c9a4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE6XW2401566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892f650dfd50d52e9cafd9af1a900314d8cbc96dc40f384c92cca17abd300901. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:05:49Z), 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/QT4K32520205.