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 0x1c3389070f98fc257d04f8fbee209f24cf0abcd10af10deaf3f00209cdbbd1c2. 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/1593172e-b98e-4ea5-91eb-cb39dd6e86a1.json and https://artists.proofprofile.net/proofs/artist/1593172e-b98e-4ea5-91eb-cb39dd6e86a1.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 0xe4d43c4ee5eaee8c1af8bed0ec7c321e1217ed4becf5a9168a4e32f9c2ee4a2d. 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/1aQQ10qcjNlzHKftEZf8uy.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/1aQQ10qcjNlzHKftEZf8uy.
{"copyright_id":"0xc788237eb3e84cfb0f78f1224bdac7b7f7ce2ee3efd585639a8ff70fa6156b75","isrc":"CA5KR2040984","name":"Butterflies - Khanvict Remix","registered_at":"2026-06-08T04:45:34Z","spotify_id":"2B1fDUS1MvCMn8ht4qhVgN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc788237eb3e84cfb0f78f1224bdac7b7f7ce2ee3efd585639a8ff70fa6156b75. 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/2B1fDUS1MvCMn8ht4qhVgN.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/2B1fDUS1MvCMn8ht4qhVgN.
Jungle (feat. Sodhivine & Rohan Krishnamurthy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ccb1bde311c45abb7880d6d6dd59be9da3bec6c19ebc20d36163a0d1c22f94. 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/55v7vmCC89zxy55xaFstwz.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/55v7vmCC89zxy55xaFstwz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3fbe68808c1006c788e20daf9bf31d5567cfc4b2765f3827f3bc1897f3726b. 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/07889puS13Hqpb1b6cBJJo.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/07889puS13Hqpb1b6cBJJo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3fbe68808c1006c788e20daf9bf31d5567cfc4b2765f3827f3bc1897f3726b. 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/0tRGGusnjMyq14aLoXg6kj.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/0tRGGusnjMyq14aLoXg6kj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2719d1c0c9f58ea1efb990dad09cd52f3548dd4ee441b0354b7a36aec15ab577. 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/51YDx5ctV3OD1uwk5NZkVx.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/51YDx5ctV3OD1uwk5NZkVx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0248ea47962a5bb74c35be23f69bf5372704e29180fbad6db1197c58d6beb9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4T67evW7uZv3lBR3fNfz1D.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/4T67evW7uZv3lBR3fNfz1D.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0248ea47962a5bb74c35be23f69bf5372704e29180fbad6db1197c58d6beb9. 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/0Wh6WKkKLml4GJXjVTs4uM.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/0Wh6WKkKLml4GJXjVTs4uM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2719d1c0c9f58ea1efb990dad09cd52f3548dd4ee441b0354b7a36aec15ab577. 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/5iAXthvmuVha52lRVIVp89.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/5iAXthvmuVha52lRVIVp89.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6b27a4dbd83700847ae8a2de037372c6fb8f056e5700d8891c2e399ae020b1. 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/6hzKhxDksnaAsOoJZf3tbE.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/6hzKhxDksnaAsOoJZf3tbE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6b27a4dbd83700847ae8a2de037372c6fb8f056e5700d8891c2e399ae020b1. 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/7zNVf1nO0eoFEgC3bUY5UL.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/7zNVf1nO0eoFEgC3bUY5UL.