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 0x4dd47731d9dde706e0fe606749e251d6748bb44c3c25dff48b54a2f9105f0003. 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/a5786df1-2d2b-4bb1-93bb-8ddd38211549.json and https://artists.proofprofile.net/proofs/artist/a5786df1-2d2b-4bb1-93bb-8ddd38211549.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 0xa35cf268e5e899469e791229c9e53afee6dabd93b9aa6dac35284723ebab3d8b. 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/3fEIMXp1PPz4fbtTCXnVbd.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/3fEIMXp1PPz4fbtTCXnVbd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374ddb331be419bc4fcb62154249bacfa22bdd86a851029f7bb2c798d17732e3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4xMf6lTA1lNQ3SVnoToW2O.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/4xMf6lTA1lNQ3SVnoToW2O.
{"copyright_id":"0xe69210a192bb5facbff77f1f423e1a28ae8f77aa61d9173bd25844a702625b5d","isrc":"USA2P2123362","name":"Let It Drip - Lowheads Remix","registered_at":"2026-06-19T15:04:00Z","spotify_id":"5XdKm3jY1JTarWMBGPYfzJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69210a192bb5facbff77f1f423e1a28ae8f77aa61d9173bd25844a702625b5d. 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/5XdKm3jY1JTarWMBGPYfzJ.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/5XdKm3jY1JTarWMBGPYfzJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e18ad9e435032415e4eb19f731970f6b8bb938f1824070669511031e0a74840. 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/5HQQEYA3xRJwXC5YkcTn55.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/5HQQEYA3xRJwXC5YkcTn55.