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 0xa15e64033a6d9496f86664da7fb604e24c0e4e95e76587f8be61fac1bdd1be83. 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/23aded1b-7f5d-4cf3-961f-dd23f1465763.json and https://artists.proofprofile.net/proofs/artist/23aded1b-7f5d-4cf3-961f-dd23f1465763.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 0x17bf48bfa9c089cadaf563863179f6c3ae27b17fcef186bad6e5fd9d0155f3e1. 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/3cZXqmGFcsSxinltf7pTtj.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/3cZXqmGFcsSxinltf7pTtj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e54f64e00a0faf7067694d9668532036ce508a5f2fa6cfd3d8c70fc31c9132e. 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/14SshuC0WXo3YqBap7Z9TY.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/14SshuC0WXo3YqBap7Z9TY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c4c184ecfad15c22783b710521809c8d14181a96c66c86a1c191a9f73ef341. 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/7LdGWEnBPB4PMgv2zBIk6h.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/7LdGWEnBPB4PMgv2zBIk6h.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eefa725ca7548f19d140754689116a69217a88c84e793aa30cc37e1329840d7. 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/7L0HVrHBzB6COOCWTDj2TD.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/7L0HVrHBzB6COOCWTDj2TD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9299753ed071293a2f06c502e34dc9a0afddc5d772622e2a9b08414e76385a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2lrcmi89xbUTAO2061ENru.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/2lrcmi89xbUTAO2061ENru.
They'll Just Love You (feat. Danny Elfman & Sextile)
{"copyright_id":"0x70e0732bcc0a2ab0516b0e0a87c45fcb1c99fe15e68a6c0a4f95ecdca4cca373","isrc":"CADE72400120","name":"They'll Just Love You (feat. Danny Elfman & Sextile)","registered_at":"2026-06-18T03:01:58Z","spotify_id":"2sThVpMXZXLxWhFkZUs5i3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e0732bcc0a2ab0516b0e0a87c45fcb1c99fe15e68a6c0a4f95ecdca4cca373. 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/2sThVpMXZXLxWhFkZUs5i3.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/2sThVpMXZXLxWhFkZUs5i3.
{"copyright_id":"0x70e0732bcc0a2ab0516b0e0a87c45fcb1c99fe15e68a6c0a4f95ecdca4cca373","isrc":"CADE72400120","name":"They'll Just Love You (feat. Danny Elfman & Sextile)","registered_at":"2026-06-18T03:01:58Z","spotify_id":"68EBA7NFUprC24YYACRPlZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e0732bcc0a2ab0516b0e0a87c45fcb1c99fe15e68a6c0a4f95ecdca4cca373. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/68EBA7NFUprC24YYACRPlZ.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/68EBA7NFUprC24YYACRPlZ.