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 0x6181759a06dd4de6d35379fc83e9826cb88c511c78ae138fcd0f4065e96f1da8. 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/ed072345-3d9c-4071-8bf9-0bf75ce7806b.json and https://artists.proofprofile.net/proofs/artist/ed072345-3d9c-4071-8bf9-0bf75ce7806b.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 0x2b450c199512523d5f8ad034e9c9106d4ed7dc9cfa0b3e1d9628980393996b2f. 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/1MUrfVHCHFY0YTWtYeU042.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/1MUrfVHCHFY0YTWtYeU042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46e057bf4c2c735c4e613a31a7bf68e434bee54b406cc15ceb44c173e0c0d45. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7iw1VY13TPigyIK5oXxgiD.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/7iw1VY13TPigyIK5oXxgiD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15279c1e4db012349113a950def26b68edacc7a3f8e01bfef672a4648b6b110e. 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/5Hz5lRyI1Lgn4SpubfWK4s.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/5Hz5lRyI1Lgn4SpubfWK4s.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977e4e04d9b4748a665b548b88a961b578a37492bd65d0f3c27716ef83cb9e6c. 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/1y2INHt4pzxhj0dsBgq6pK.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/1y2INHt4pzxhj0dsBgq6pK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4800a5803e04f5939a5349f5ebe2115434c43c123005a33cf5d302974e63909. 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/2lzdMuqZvkhNmbYg3fUJlY.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/2lzdMuqZvkhNmbYg3fUJlY.