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 0xf0009abb57edac63fd4f3b119efe2d9e0c3bd888ee2c2401abea931436e53405. 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/e1a26af2-a9c5-4b97-8709-927803f175ee.json and https://artists.proofprofile.net/proofs/artist/e1a26af2-a9c5-4b97-8709-927803f175ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0xed042b75d26ca6b10e0e76010c004e48049255917dfd96794082a6000727294b. 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/3uhpUCzLAlGB3EO8hY71Hr.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/3uhpUCzLAlGB3EO8hY71Hr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865120ba5a7d5ae983ce1db5a9729924b5773289e6828059143ee9703c3fe1fe. 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/5BukT1w7855Z4yvpQSvu1H.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/5BukT1w7855Z4yvpQSvu1H.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147af97997903f618f084a62231067fb3089f780f4e2c243b7224c3a5f0187bc. 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/01BY5NUbjAfMYwbo9Ijmrr.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/01BY5NUbjAfMYwbo9Ijmrr.