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 0x8301dd798a3efe56a1e3b3c0805728aec7c6636ab2c406744272b5b2b8580796. 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/7ece61cd-19ff-48f2-9612-a8ec649b1527.json and https://artists.proofprofile.net/proofs/artist/7ece61cd-19ff-48f2-9612-a8ec649b1527.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x43099d9e63ef5878c75c04cdd218bdd65127beb0adc7ed826342c08e40f4fc5a","isrc":"TCACR1692579","name":"Last Farewell","registered_at":"2026-06-29T11:59:16Z","spotify_id":"6gngr8vFPaVcJj4HjqJ5kZ","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 0x43099d9e63ef5878c75c04cdd218bdd65127beb0adc7ed826342c08e40f4fc5a. 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/6gngr8vFPaVcJj4HjqJ5kZ.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/6gngr8vFPaVcJj4HjqJ5kZ.
Mechanism Pilot (feat. Lucy in Disguise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeffea40ad76fc8115a2577202f1e078fe4170eb43d53a8981b54eee2d8d94f3. 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/3Gf9xL1MGh7T7tr8CxnWar.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/3Gf9xL1MGh7T7tr8CxnWar.
{"copyright_id":"0xdbfcce4ece40ffb8f77531bbf04fb8e1e1b318ebfce537ebeb1045fbbd404909","isrc":"TCAEG1913823","name":"Space Disco","registered_at":"2026-06-29T11:55:51Z","spotify_id":"6RDS0TSrq0OI9SuIBBS25y","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfcce4ece40ffb8f77531bbf04fb8e1e1b318ebfce537ebeb1045fbbd404909. 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/6RDS0TSrq0OI9SuIBBS25y.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/6RDS0TSrq0OI9SuIBBS25y.
Shadow Light (From “in Search of Darkness - Pt. III”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18fedf695736ac5ca112296764dda9b09f9a9f3dc013ff7732644cb160abc077. 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/3PyvSF2RNG0LrxE5ufICxP.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/3PyvSF2RNG0LrxE5ufICxP.
{"copyright_id":"0x87229ddaf1b501952b2a5df68f0524d53a9878faddf6d04a3574dff6960dacf9","isrc":"TCADO1887987","name":"Miami Nice, Pt. 1 (Tonebox Remix)","registered_at":"2026-06-24T06:51:00Z","spotify_id":"3UC6qUa9RE4b6KtFc51oCz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87229ddaf1b501952b2a5df68f0524d53a9878faddf6d04a3574dff6960dacf9. 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/3UC6qUa9RE4b6KtFc51oCz.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/3UC6qUa9RE4b6KtFc51oCz.