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 0x2205bb6ccf46e78af45d2e7eecce8a0533599f14980737b63152651045d68e60. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1958a90b-3fb8-484e-8ca1-fbbc21bf6e61.json and https://artists.proofprofile.net/proofs/artist/1958a90b-3fb8-484e-8ca1-fbbc21bf6e61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Popcorn Ceiling (Where'd It All Go Wrong)
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 0xf40b27ff4f853deea6662e43b62ef85bb1498b148c9bba91970c6cd05cee3c6c. 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/2GwviGEafScio0HDjnsPWN.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/2GwviGEafScio0HDjnsPWN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87886d37d7f10bbd7ed40fb5685522adca923c7c52a9ea008881eb64a4a5c628. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2OBcg2jIgCgKZQKKo2uOCy.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/2OBcg2jIgCgKZQKKo2uOCy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ed37b2db1fe36cef3f0f4725ff4631604ce64f39a0a2d9a895a04a661ce28a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/644y88i3U334LMhPoZTcDT.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/644y88i3U334LMhPoZTcDT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546d96b6d438c82651055c4e3e38594b77c75ec595cb2c03dce4da484f132c93. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/78kgHh6Mhv9kwrPK0Ba0jt.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/78kgHh6Mhv9kwrPK0Ba0jt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d2bb36ba38adac1dc1e3e58705afebb7e0aea075759312eca089000e4ef860. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3fUdGxzSWmWdGSwqtlbXh2.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/3fUdGxzSWmWdGSwqtlbXh2.