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 0xa017dd94b117a5933dbf29dda05922b256912670234b9697dbd8d756a7fbbb88. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47014601-2792-4f99-b6c2-a73d6cca2381.json and https://artists.proofprofile.net/proofs/artist/47014601-2792-4f99-b6c2-a73d6cca2381.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Moonlight Legends - The Sailor Moon Themes
Game of Thrones - Season 2 Theme (Stark)
High School of the Dead (Main Theme Season 1)
Highschool of the Dead (Main Theme Season 1)
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 0x6dae79df8ab08013e46593fe75a68d4c7f204d2746c4ddd38d095961485d0340. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:29:24Z), 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/GBW2K1110098.
No Place for No Hero (From "Borderlands 2")
Carry On (From "Call of Duty: Black Ops 2")
The Rains of Castamere (From "Game of Thrones") [Lannister Mourning Mix]
Almost Home (From "Oz The Great Powerful")
Radioactive (From "Defiance Trailer") [feat. Millie Appleton]
Passages (From "Pacific Rim Trailer 2013")
Theme of Elysium (From "Elysium Trailer 2013")
Theme from the Wolverine (From "The Wolverine Trailer 2013")
Theme from Desolation of Smaug (From "Desolation of Smaug Trailer 2013")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263b8625ea2bf6ef8e4727e97824cfbc1065a58324c81854d380ae9a2252587c. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:53:52Z), 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/GBW2K1112013.
You've Got Time (From "Orange Is the New Black")
A Beautiful Cruel World (Ending 1) [From "Attack on Titan"]