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 0xa0f0592cb0b59af714df4601295c6cf550f90ed5313b5b3a7693c72f3bc1820e. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/119aa2c5-6073-4663-8d07-6eaf75070736.json and https://artists.proofprofile.net/proofs/artist/119aa2c5-6073-4663-8d07-6eaf75070736.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ninja Gaiden 2 - Pain Does Not Exist In This Dojo
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 0x382b67632aad7f76aa89aa8f62ce7366c6e715a64ec9fea68555471d8cdf3732. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAAT1030797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ca0678ec9f879386e94f38978625dc028cee3f7f2de29404b883eaa477af80. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/TCAAT1030817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bc68981608e6d76e43207f35ea1da77449ffac5e2bbab0224b4b34d12fd4a8. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/TCAAT1030818.
Zombies Ate My Neighbors - Sunset At Zombie Beach
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c809ea9bee10e9e2b956e34105be57b6df93c0b0c8c23c1b23c3c606662d5e1. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/TCAAT1030819.
Cave Story - Fields of Awesome (feat. Stemage)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b38ebc4e8629ed0aea9e087735456597b41cade8dcb4dbe5d7c4d27616a206. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCABB1190891.