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 0xab91d497207e6e2ca87de119810b3a10416bcdaaa285e5b240d90540a6202f53. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7251ac0c-0171-4398-83f5-318a40d709ea.json and https://artists.proofprofile.net/proofs/artist/7251ac0c-0171-4398-83f5-318a40d709ea.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 0xd12ff74518a62deca7fabd90fba129c5a27a2ee1c1df8f973dcfe5d31190c359. 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/23uVLkSRIWNUat4sBniX0S.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/23uVLkSRIWNUat4sBniX0S.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f5172b6e5f427bda8e32ed6b8776e507d412ad8d7e42ea2193f27c5e6644ea. 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/48SKFG07FghE3edNR1DP2K.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/48SKFG07FghE3edNR1DP2K.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4d772feb0d11060ab7cede52fd896c999b6e9e62a22677836b0b625d8585ae. 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/7p5chQsiDt4zo3PSMlUpcx.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/7p5chQsiDt4zo3PSMlUpcx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154b35bfd33f4892e352a9e64978e18de4be5564590abd90b5f1a27bed6b231e. 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/46Vo9PvaLRXeEjcgMhDUpF.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/46Vo9PvaLRXeEjcgMhDUpF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cda6f484bf5bc00b280de62678e80e0b8f605d5abd7b17b034046439dceb98f. 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/2S3ouc43YxPVvtjEzKkxkw.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/2S3ouc43YxPVvtjEzKkxkw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5688d9a93d0f3f496151d8da30862ccf11f28c9b5a2fb851058f454bff35ad95. 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/5NyJnGZ1wVS1NysgS8u5tn.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/5NyJnGZ1wVS1NysgS8u5tn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc633dc2ff2301c7534ed8ee9f821b8c9e06691a41f1ed401d749d0331278804d. 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/7LSXPBSMObXxqGekoeSPRH.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/7LSXPBSMObXxqGekoeSPRH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3c267f15321c2efb0ab78e5ca7a50795d2e79dfa83356dc6daa1e1b1a6b968. 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/7yBQAqxvn0MCbt4aS0p8VH.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/7yBQAqxvn0MCbt4aS0p8VH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84883f7be20f01c4661785dc75bf4edd7e949aa925f0fe54addf9ee3f257caa. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:41:31Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1BY4scEKdNjsnz7cje9Bj0.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/1BY4scEKdNjsnz7cje9Bj0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed9e084ddb8ac2ab732d1ab41012d882a4a5cd27eb925cf05a8555f06a38069. 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/4r8O5U28DgRvFUaYahYYEP.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/4r8O5U28DgRvFUaYahYYEP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd315d01c8dbc426a53e9f7e23e373498a7025d3098062601da2755580e238d9. 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/75DME9o2g6Wyj9HUUcquUR.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/75DME9o2g6Wyj9HUUcquUR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626899a359404758f43dec278455309dc4a4fa7f7db2199f77378d3d8642e98b. 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/40aRrBhreadB8OO2XvHbzb.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/40aRrBhreadB8OO2XvHbzb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43f752f143245531993ded857902e2475113c4ee4fc95bb27e2f19cb367eb50. 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/6KZiG17LxUky2VUChktXDx.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/6KZiG17LxUky2VUChktXDx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ff9b9ec5c9c99796726da10b5da5d05d8815531b28ddc46ea1794e122917a2. 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/5to6KgUkDRsFXz9OTxGcEI.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/5to6KgUkDRsFXz9OTxGcEI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2497b0c1639b29cb81a3c24777ae7a9e20e405efefb17a53d0e202981c61b570. 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/1rXFDzxFG7l4dZc7kL5cRR.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/1rXFDzxFG7l4dZc7kL5cRR.