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 0xd4289f5f9ee3745d141c8b822db2afc9e705ff301d68c64d07ebd87c1e914e90. 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/ba989c24-c28b-4b2b-9589-0300cd0348d8.json and https://artists.proofprofile.net/proofs/artist/ba989c24-c28b-4b2b-9589-0300cd0348d8.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 0xad0c330969a00a3740ae702613f3b138da92a3e893e816e708a36a0699cf0fac. 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/3hMLWuAxchIiAeRboWGZH6.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/3hMLWuAxchIiAeRboWGZH6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498edd74d391eb168788840c967be988bc5af2b69972447f83a6cc85711ca4d3. 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/64oNKYVKzOY7zT50xiolIQ.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/64oNKYVKzOY7zT50xiolIQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc240580b077a07b2acd17f7c7a4e4457eb0be654c5639bc98a082c0a2ee144. 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/5sbxz9GKSYZNO2nhOgZE5j.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/5sbxz9GKSYZNO2nhOgZE5j.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bc14fb572677c451bcc7223dc9b791bdaf8dd8166699f160b1c4e21be74eff. 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/0z40FQFfw0Nnp8rKrv9T8o.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/0z40FQFfw0Nnp8rKrv9T8o.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9f1979553290dea7946cb3d6e899c0b462e3886a0df48ff5136efe5be0de32. 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/7h4NVD2OTWlfDbgMdUPhSG.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/7h4NVD2OTWlfDbgMdUPhSG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2f5538d5d24bbdf1cbb7091d61e656ce127c4c6ada0bf0dbbca618918a2514. 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/1BClN9BPyL1bk5GfcAYvKU.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/1BClN9BPyL1bk5GfcAYvKU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4703718069b0092c6285aa644661a774dcdf707d50d8651c22ecd3c7622e3b74. 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/77sETM0LOgcf6xp2JjacYx.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/77sETM0LOgcf6xp2JjacYx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9aab343c330d6fddf7245d651b24c595633c5c4148e6cfa584de28f9460840. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/12DyIOoN80HnUAiGwNry4N.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/12DyIOoN80HnUAiGwNry4N.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9021e3867dc2dabc4e1927e6c4de4db33b224766d3ad0a0c6f250f6f5e225159. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5EnfFvpCny3PdL1d8rLGTT.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/5EnfFvpCny3PdL1d8rLGTT.
这世界总有一个人等你(DJ沈念版伴奏)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a920ae256bae1d9c9ce4c447831d8559a272c07cf5d956e219ad5b9566edcb1. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/27wekAv6Zl7hQORj6fFSXN.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/27wekAv6Zl7hQORj6fFSXN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a80065ee8bb04b2927e6c997e3a60ed389f66facaa78dcf1c721d6e46bf9cd. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2qn7QWT5SXb9czFdd2t3WC.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/2qn7QWT5SXb9czFdd2t3WC.