1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x9fc591d9aefd68f96bcfd6f44feb5792623390101a007a87c054180d50adc0d7. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d41f7c7-3a6f-414d-891b-8663e6dd1064.json and https://artists.proofprofile.net/proofs/artist/0d41f7c7-3a6f-414d-891b-8663e6dd1064.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Arifureta Battle Song Itsumo Sentouwa Mendouda
Arifureta Battle Song Itsumo Sentou wa Mendou da
Thank you for playing ~Anata ni Deae te Yokatta~
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1676616b885240b5996b66bdb2c8d913a29f536c5e38a01b8213a1c755edeef2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6qsE0lWF27vNvsaOsbXziV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6qsE0lWF27vNvsaOsbXziV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1676616b885240b5996b66bdb2c8d913a29f536c5e38a01b8213a1c755edeef2. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5mvicCbhvfx4IkTZWvj0Cc.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5mvicCbhvfx4IkTZWvj0Cc.