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 0x50adba541e66693f13bc6003fab6af9edc7bfdb815861c4aa34d25273adb956d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36e715ad-c316-4652-b6a3-edc8fcdb3463.json and https://artists.proofprofile.net/proofs/artist/36e715ad-c316-4652-b6a3-edc8fcdb3463.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Backwoods Company - Live from Bonnaroo 2014
Spotify Sessions (Live from Spotify SXSW 2016)
Help Me Out - Live from Spotify SXSW 2016
Goodbye Song - Live from Spotify SXSW 2016
Happy Again - Live from Spotify SXSW 2016
If You Don't Love Me - Live at the Ryman
Don't Ask Me to Change - Live at the Ryman
Lonely Is a Lifetime - Live at the Ryman
{"copyright_id":"0x4db67ff709536a2feef7ce41e049c8bbbc022eb868f668f1b1183a4ed3df59ab","isrc":"USRE11800191","name":"Two Broken Hearts","registered_at":"2026-06-29T08:17:15Z","spotify_id":"5M8pFyozbhsS4QNxsSE2Jl","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 0x4db67ff709536a2feef7ce41e049c8bbbc022eb868f668f1b1183a4ed3df59ab. 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/5M8pFyozbhsS4QNxsSE2Jl.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/5M8pFyozbhsS4QNxsSE2Jl.
{"copyright_id":"0x2f63cac0ccd4fddb1cd449bae149e54d0fe4b4ff916336c8355303148c8a0ace","isrc":"US27Q2152112","name":"Another Sunny Day","registered_at":"2026-06-29T08:19:47Z","spotify_id":"11uKDUpcGfwKqQ9XGOnZ0Z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f63cac0ccd4fddb1cd449bae149e54d0fe4b4ff916336c8355303148c8a0ace. 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/11uKDUpcGfwKqQ9XGOnZ0Z.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/11uKDUpcGfwKqQ9XGOnZ0Z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0acaa331e58644d26e7500fa213935159649a7c0641ec77babb208bd5ccd57cd. 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/6oKsohKAKLVaUveSNSvAfh.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/6oKsohKAKLVaUveSNSvAfh.