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 0x085a1170cd64178ebdedd4ac93d28c9fb49439bb2799f2c58de76bac78101911. 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/5290db07-ecb2-4c4f-bb44-1e4cbff0f45b.json and https://artists.proofprofile.net/proofs/artist/5290db07-ecb2-4c4f-bb44-1e4cbff0f45b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tejano All-Stars: Masterpieces By David Lee Garza
{"copyright_id":"0x55eaa2b8176d6f6cbc4a76d75521656118f0082ea3b525d1ab910c0c2a839ac7","isrc":"USEL19600045","name":"Mi Pequeño Lucero","registered_at":"2026-06-19T12:21:17Z","spotify_id":"5vwmFaQjkSvAhh5Dn4adB4","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 0x55eaa2b8176d6f6cbc4a76d75521656118f0082ea3b525d1ab910c0c2a839ac7. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5vwmFaQjkSvAhh5Dn4adB4.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/5vwmFaQjkSvAhh5Dn4adB4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c98f455851af44725ed81fac4cc072c13897a97e231de609e3f379ad8b2515b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2RrlRUUylNHaTQjSv4NnbX.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/2RrlRUUylNHaTQjSv4NnbX.
{"copyright_id":"0x55eaa2b8176d6f6cbc4a76d75521656118f0082ea3b525d1ab910c0c2a839ac7","isrc":"USEL19600045","name":"Mi Pequeño Lucero","registered_at":"2026-06-19T12:21:17Z","spotify_id":"154HLvZhbWl0diAngwPMGI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55eaa2b8176d6f6cbc4a76d75521656118f0082ea3b525d1ab910c0c2a839ac7. 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/154HLvZhbWl0diAngwPMGI.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/154HLvZhbWl0diAngwPMGI.