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 0xa81e2e20e99b6d24da3c5122027108e7373a28915450241af7faaa32a903fe7c. 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/2271e54f-380f-44f3-8328-1706e48fc4e4.json and https://artists.proofprofile.net/proofs/artist/2271e54f-380f-44f3-8328-1706e48fc4e4.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 0xc587bc857f27b7950b1ea1a84256064a9c724c375db0a3cab148ad0605e41d22. 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/054h6g2VMeQiEflvzATqDB.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/054h6g2VMeQiEflvzATqDB.
{"copyright_id":"0x3903e45a379909fecdb6c528715f022cbeac95b57e2aadacf2c72c82e93f2e3f","isrc":"QZQMB2104102","name":"El Culichi De Sonora (En Vivo)","registered_at":"2026-06-05T22:28:38Z","spotify_id":"2LWZokpomMYPTtzbTSMya9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3903e45a379909fecdb6c528715f022cbeac95b57e2aadacf2c72c82e93f2e3f. 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/2LWZokpomMYPTtzbTSMya9.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/2LWZokpomMYPTtzbTSMya9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9370e5038667010c15cc726055ce51644dc8857395d6d2d5f93cbae2ef28f8ab. 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/0xO4o6Vr3gFxJir04U2ACz.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/0xO4o6Vr3gFxJir04U2ACz.
{"copyright_id":"0xd350b407872ac010d6579d5188e79bfeffc8dd64335a69811df0f3d9fdc30ae5","isrc":"QZQMB2104123","name":"Chamaquita Linda (En Vivo)","registered_at":"2026-06-05T22:27:17Z","spotify_id":"5hfKaW4R6hOQX4gYND0JHt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd350b407872ac010d6579d5188e79bfeffc8dd64335a69811df0f3d9fdc30ae5. 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/5hfKaW4R6hOQX4gYND0JHt.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/5hfKaW4R6hOQX4gYND0JHt.
{"copyright_id":"0x309f6d868b4e45f6ba90c5a94d2ae52a3f79577647d15e8a0cfe3c9733445a9f","isrc":"QZQMB2104127","name":"Las Higueras (En Vivo)","registered_at":"2026-06-05T17:55:36Z","spotify_id":"58NfZRcYD94cJwtNNGC1lS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309f6d868b4e45f6ba90c5a94d2ae52a3f79577647d15e8a0cfe3c9733445a9f. 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/58NfZRcYD94cJwtNNGC1lS.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/58NfZRcYD94cJwtNNGC1lS.