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 0xa954bf788cd7cd4a5b481b7858245c7f9ffa39e567eaa2b46e31825292b395ca. 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/4f6e578b-4700-4e2e-8ae8-125869e787c7.json and https://artists.proofprofile.net/proofs/artist/4f6e578b-4700-4e2e-8ae8-125869e787c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xff336d0994e46c1017d4be3ee3066d2adf1a71386fe305455ff56dcc741874d2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1K1Hr4lUYJ8OwziQQVeBbS.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/1K1Hr4lUYJ8OwziQQVeBbS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46640227e5adf2ec72c8b7ff3b5954f28e0dbe0a869961281d715d2ecdf170e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/75C7h6fQKusr5n0t37ewlr.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/75C7h6fQKusr5n0t37ewlr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec76acb8f405da4f5557e00b2d872535a46593a1936679507cb8a55d5b4e3fb5. 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/3KyJa1ub5Qqkv5MJV30uKd.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/3KyJa1ub5Qqkv5MJV30uKd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff336d0994e46c1017d4be3ee3066d2adf1a71386fe305455ff56dcc741874d2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3rrotc3xgUqzHKeKUQ8i6J.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/3rrotc3xgUqzHKeKUQ8i6J.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec76acb8f405da4f5557e00b2d872535a46593a1936679507cb8a55d5b4e3fb5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/64GqY4X8YZbufm8kk62NoB.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/64GqY4X8YZbufm8kk62NoB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46640227e5adf2ec72c8b7ff3b5954f28e0dbe0a869961281d715d2ecdf170e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/34sqa8rxvXquTj9ZJMWBEe.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/34sqa8rxvXquTj9ZJMWBEe.
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