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 0x44c8c5e510e42b70a4b234b8be6f72c33a37ff17e047a7086653491889fdc47a. 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/989254c6-e406-4b16-9cd9-6b13b563cb3d.json and https://artists.proofprofile.net/proofs/artist/989254c6-e406-4b16-9cd9-6b13b563cb3d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xbc1d689abade7d50fe1b6bd5a708bfadd2fccfed1fed88e4c53a1b70dff4eb22","isrc":"QMPKX1800745","name":"It's Okay to Dream","registered_at":"2026-06-04T13:46:27Z","spotify_id":"26mM36KDga2uHuqc8hRw7W","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 0xbc1d689abade7d50fe1b6bd5a708bfadd2fccfed1fed88e4c53a1b70dff4eb22. 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/26mM36KDga2uHuqc8hRw7W.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/26mM36KDga2uHuqc8hRw7W.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865b07f274d45bd962897294dcef9d260579efc997a4fd9e52bd0b3015054176. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0OrxUBA5JghHjUarBa2Vjz.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/0OrxUBA5JghHjUarBa2Vjz.
{"copyright_id":"0xf3bc7edf27dbdf41cd5800f86559ef4032af82b2bcde9ff958efc1cda327b88d","isrc":"JPV502100430","name":"Calm As Day","registered_at":"2026-06-25T17:29:06Z","spotify_id":"5qJoQmF7ej5IQdEHEcuWvG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3bc7edf27dbdf41cd5800f86559ef4032af82b2bcde9ff958efc1cda327b88d. 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/5qJoQmF7ej5IQdEHEcuWvG.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/5qJoQmF7ej5IQdEHEcuWvG.
{"copyright_id":"0xf3bc7edf27dbdf41cd5800f86559ef4032af82b2bcde9ff958efc1cda327b88d","isrc":"JPV502100430","name":"Calm as Day","registered_at":"2026-06-25T17:29:06Z","spotify_id":"6O7h2vpsK3FJxPLhD7R6tT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3bc7edf27dbdf41cd5800f86559ef4032af82b2bcde9ff958efc1cda327b88d. 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/6O7h2vpsK3FJxPLhD7R6tT.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/6O7h2vpsK3FJxPLhD7R6tT.