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 0x6e22ada42e1d7ac970a5c0504a8f7639fa631fb5e8a8926f37c33248bee82898. 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/b2d8f273-8467-4a43-9808-a274e46f5be6.json and https://artists.proofprofile.net/proofs/artist/b2d8f273-8467-4a43-9808-a274e46f5be6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Sound of Silence - with water sounds
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 0xbb42168d63f7d5d66bfbea282fd802caf26dc408b6863bbded51c18719915289. 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/0SGeXEV9v1FZECxM41ezIa.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/0SGeXEV9v1FZECxM41ezIa.
{"copyright_id":"0x2d4eac0a9497614b07a3669f4fdf4a11c36f9940aff1469c6ebbf3e2a5f4a13c","isrc":"GB8KE2425749","name":"Mystic Blossoms","registered_at":"2026-06-29T06:35:12Z","spotify_id":"5kCmrZW8tPp4cl3XxqVe25","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4eac0a9497614b07a3669f4fdf4a11c36f9940aff1469c6ebbf3e2a5f4a13c. 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/5kCmrZW8tPp4cl3XxqVe25.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/5kCmrZW8tPp4cl3XxqVe25.
{"copyright_id":"0x0a7f066e59e8da98f1bdf9f03cdcf8ab04caf84bd8d434d386462eca2022cae3","isrc":"GB8KE2427425","name":"Cradle of the Stars","registered_at":"2026-06-29T10:37:52Z","spotify_id":"7MMXZAHCYxGmUYqGE0HKZt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7f066e59e8da98f1bdf9f03cdcf8ab04caf84bd8d434d386462eca2022cae3. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7MMXZAHCYxGmUYqGE0HKZt.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/7MMXZAHCYxGmUYqGE0HKZt.