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 0xd3063cc7d5ad4326091529ae434d02d2cb657a52988731d733f8032028b89350. 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/eabd741e-f81b-4368-bf91-0c3f14ba10d8.json and https://artists.proofprofile.net/proofs/artist/eabd741e-f81b-4368-bf91-0c3f14ba10d8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Night in the Woods (Original Soundtrack, Vol. 1) [At the End of Everything]
Night in the Woods (Original Soundtrack, Vol. 2) [Hold onto Anything]
{"copyright_id":"0xaca5cf9dd5e0dce4fc53c3f49ab5014dde7362df4423c55e2f0a98448335ff87","isrc":"TCAED1903120","name":"Library Investigations","registered_at":"2026-06-28T19:56:50Z","spotify_id":"6j4v40o5ereKTYPxnT9BgD","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 0xaca5cf9dd5e0dce4fc53c3f49ab5014dde7362df4423c55e2f0a98448335ff87. 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/6j4v40o5ereKTYPxnT9BgD.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/6j4v40o5ereKTYPxnT9BgD.
{"copyright_id":"0x290e60c6837cf22c5b80c9854ce2cd7043ff4a58c98f9ef0eec8d82909a78fa3","isrc":"TCAED1903173","name":"Early Longest Night","registered_at":"2026-06-28T20:00:16Z","spotify_id":"3uwWdUZ7gPNbcqKNcX5VNf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290e60c6837cf22c5b80c9854ce2cd7043ff4a58c98f9ef0eec8d82909a78fa3. 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/3uwWdUZ7gPNbcqKNcX5VNf.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/3uwWdUZ7gPNbcqKNcX5VNf.