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 0xf5f5cb8ac346a192e2d98fe9fe74d6408c1e45cbe29b01f6296299fcbc024355. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d95f8a8d-9b81-49c0-88a7-bd64a408d00f.json and https://artists.proofprofile.net/proofs/artist/d95f8a8d-9b81-49c0-88a7-bd64a408d00f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xeb84e1e2cf9d4024a44cd539bf90dd9bf1ddf8c90b937dab852764fbb03960ea","isrc":"USAT21906102","name":"32 Shots","registered_at":"2026-06-29T15:41:15Z","spotify_id":"3LLs1fY1jQcxwtHt4CPfGr","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 0xeb84e1e2cf9d4024a44cd539bf90dd9bf1ddf8c90b937dab852764fbb03960ea. 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/3LLs1fY1jQcxwtHt4CPfGr.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/3LLs1fY1jQcxwtHt4CPfGr.
{"copyright_id":"0x56b6df8a6739c768fd92d8300c55b9e1e0fff567c32c9982fc3e6bcd3182cd35","isrc":"TCAIW2421899","name":"Look How He Came In","registered_at":"2026-06-28T19:30:12Z","spotify_id":"6txUIb6WpFZP88RJcoReMa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b6df8a6739c768fd92d8300c55b9e1e0fff567c32c9982fc3e6bcd3182cd35. 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/6txUIb6WpFZP88RJcoReMa.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/6txUIb6WpFZP88RJcoReMa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432a88a4a1d5e39393e74d016128e77951bdd23e1173fd466a0693ac9d4bfb61. 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/0FpjgTQ0E434zWML1MBs3N.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/0FpjgTQ0E434zWML1MBs3N.
Kill Everything (feat. DB Omerta, Marko WalkinTrap, Beno & J3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920df18f774d9844bfad8429c53f563142863a7dc7f11f2824d7da3d4687aadb. 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/3RLf7CDg5iGm7xQaaaZpx3.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/3RLf7CDg5iGm7xQaaaZpx3.