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 0x66d205adecc56842e87f2f61048c0df413dd06cc393a92891dff0f23578dd9eb. 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/3b5718c6-10aa-4f84-947d-6df7a862869a.json and https://artists.proofprofile.net/proofs/artist/3b5718c6-10aa-4f84-947d-6df7a862869a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
TALINGHAGA (feat. Acel, Lougee Basabas-Alejandro & Hannah Romawac)
{"copyright_id":"0x4ec09aa97ff0d67a9d0d12fdb26e3bea561ef64ae5f0990bc329a60cd92a96f0","isrc":"PHW012000008","name":"Awit ng Bagong Taon","registered_at":"2026-06-06T05:26:30Z","spotify_id":"5d7hceIWVILdxMyk7PF1YW","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 0x4ec09aa97ff0d67a9d0d12fdb26e3bea561ef64ae5f0990bc329a60cd92a96f0. 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/5d7hceIWVILdxMyk7PF1YW.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/5d7hceIWVILdxMyk7PF1YW.