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 0x982d875e2329f0303427d4e54b25354b2facdec9f2cefd272de5dd2a3c630dd5. 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/6bc4e168-679c-4de9-b2c3-f6f8899a312e.json and https://artists.proofprofile.net/proofs/artist/6bc4e168-679c-4de9-b2c3-f6f8899a312e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x8e5eca0ef4f97371973dcc244b50ebe6a29a35841b38482f4af283e6cefb5ee9","isrc":"USAT21102310","name":"I Didn't Mean It","registered_at":"2026-06-05T11:19:20Z","spotify_id":"41xcAb96dNISEkbC9Ji0Rp","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 0x8e5eca0ef4f97371973dcc244b50ebe6a29a35841b38482f4af283e6cefb5ee9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/41xcAb96dNISEkbC9Ji0Rp.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/41xcAb96dNISEkbC9Ji0Rp.
The Twilight Saga: Breaking Dawn - Part 1 (Original Motion Picture Soundtrack)
{"copyright_id":"0x8e5eca0ef4f97371973dcc244b50ebe6a29a35841b38482f4af283e6cefb5ee9","isrc":"USAT21102310","name":"I Didn't Mean It - Soundtrack Version","registered_at":"2026-06-05T11:19:20Z","spotify_id":"2tsfrXrljBVa0fCXyQoISy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5eca0ef4f97371973dcc244b50ebe6a29a35841b38482f4af283e6cefb5ee9. 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/2tsfrXrljBVa0fCXyQoISy.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/2tsfrXrljBVa0fCXyQoISy.
{"copyright_id":"0x8e5eca0ef4f97371973dcc244b50ebe6a29a35841b38482f4af283e6cefb5ee9","isrc":"USAT21102310","name":"I Didn't Mean It","registered_at":"2026-06-05T11:19:20Z","spotify_id":"0hFnyzOt7BKELBy8k3emTS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5eca0ef4f97371973dcc244b50ebe6a29a35841b38482f4af283e6cefb5ee9. 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/0hFnyzOt7BKELBy8k3emTS.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/0hFnyzOt7BKELBy8k3emTS.