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 0x369b7c7aca753d881c4bdaed1ebebe146c45d545cb8c5377574048cee3bc3862. 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/1c72449e-75b2-4aa0-8221-999dc9a1684d.json and https://artists.proofprofile.net/proofs/artist/1c72449e-75b2-4aa0-8221-999dc9a1684d.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 0xecd3f01d266114111c47600c7da012bf64e243e626ecb16cda67965b900bfc6b. 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/1oQfQVgSOVJXrvFX2Faah7.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/1oQfQVgSOVJXrvFX2Faah7.
{"copyright_id":"0x17feb212a850d3e71b2311c1fc112bbd74e5a6128fedb1ffc3be8023f83af7ad","isrc":"QZHN72171938","name":"Step into Love - Nigel Lowis Mix","registered_at":"2026-06-21T10:35:39Z","spotify_id":"18uXfsI8OSG43MM5wM949y","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17feb212a850d3e71b2311c1fc112bbd74e5a6128fedb1ffc3be8023f83af7ad. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/18uXfsI8OSG43MM5wM949y.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/18uXfsI8OSG43MM5wM949y.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595c203aa0b9846ad1ea2b0986ea2bcafb47fcf8813ebc3e1e9ccda49fe092d0. 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/1mA8CXTW56U5TNkpiE7AuI.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/1mA8CXTW56U5TNkpiE7AuI.
Love Life (Morgan State University Baltimore House Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9001106997831bcfcf44d3f5268326f4d03db358834cd1cbe0ab95da0a8cf02d. 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/4yc8zYOS8t2vWfU65mOU1S.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/4yc8zYOS8t2vWfU65mOU1S.