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 0xe13822396d30c821c234a82ba3754a07aefeb9bc0e324ee70a1c241578c03d67. 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/f0e74f80-032e-42b7-9971-433a46259eed.json and https://artists.proofprofile.net/proofs/artist/f0e74f80-032e-42b7-9971-433a46259eed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x42667a5f2fe382d454b6536993d2cb0481827c9777852457612da31d1c60c489. 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/QZDA61965879.
Battle for Survival (From Shin Megami Tensei: Digital Devil Saga 2)
Main Theme (From "The Legend of Zelda: Breath of the Wild")
Final Destination (Frpm "Super Smash Brothers: Melee")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad49c9caca1c95e619ba790ac17cff5c439526c6df0a207eaebf172f16a69eee. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZFZ61912837.
Main Theme (From "Super Smash Brothers Ultimate")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673bce07b1d661c51b9027e16f189b1f532312f425510b022e816729b552778a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZFZ61912838.
Sky Tower (From "Pokémon Mystery Dungeon Blue Rescue Team")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a824f02a3a96cacee0463b95ea3536f65a9f15513e379e378a1bc7ca8291d7. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZFZ61912836.
Tokyo Battle (From "Shin Megami Tensei IV")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf68fd904965e65791867c9e5b6ab1bbaf00f1b3e0e172282925080220704b1c. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:09:13Z), 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/SE5751912729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403dc54718caec68aafbd5e56d1e3e4dad0184c60891cbd4fae31df3e6a88c58. 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/QM42K2167121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad49c9caca1c95e619ba790ac17cff5c439526c6df0a207eaebf172f16a69eee. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZFZ61912837.