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 0x439aad6c41c08e65dce1545f9cf501ed1e72196a51341bee358690a49e9b3438. 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/910e3e1e-baf5-4093-90fa-9edb39aa4158.json and https://artists.proofprofile.net/proofs/artist/910e3e1e-baf5-4093-90fa-9edb39aa4158.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x53141f9099650df11fc9b1a2247db89f2089def8b138f34aa60ac99db3200814","isrc":"QMGR31968818","name":"Caught Up In My Sins","registered_at":"2026-06-28T19:36:00Z","spotify_id":"4iqAHTndDINJ3PbvezgKwr","type":"track"}
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 0x53141f9099650df11fc9b1a2247db89f2089def8b138f34aa60ac99db3200814. 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/4iqAHTndDINJ3PbvezgKwr.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/4iqAHTndDINJ3PbvezgKwr.
{"copyright_id":"0xe264e6ac800832bcc946a31bbc94c3f3ac04e62e89bc5a8c9f4c76343fd95e7e","isrc":"QZVEM1871175","name":"3AM In Cali","registered_at":"2026-06-29T17:12:50Z","spotify_id":"4EKNijWIRbk7PmFiqYQdRB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe264e6ac800832bcc946a31bbc94c3f3ac04e62e89bc5a8c9f4c76343fd95e7e. 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/4EKNijWIRbk7PmFiqYQdRB.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/4EKNijWIRbk7PmFiqYQdRB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198b1f26bd1e134abbd098361e33785839c12959c1b5bc3024a2996ba2004efc. 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/6TVvpyA0EeS4fZZb9ai6Km.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/6TVvpyA0EeS4fZZb9ai6Km.