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 0x25c1e0899fa1e4fe1c205a3ef473fb4020063c3b1b0652dcf53419e587b72835. 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/ebfad129-7717-46aa-bebf-3d91bf80d9f4.json and https://artists.proofprofile.net/proofs/artist/ebfad129-7717-46aa-bebf-3d91bf80d9f4.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 0xbafe762fd8c63cb942954a7513862c0510e77af7d5e5845e70070aedc96d2a63. 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/7wsUtgAqx4SIMdYdnJDMcr.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/7wsUtgAqx4SIMdYdnJDMcr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c545fa2a18995891b504ef7ce4bb88d3996743c11ae37ead97216be282c1b79. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0mqtY2T9IVGld83Wg39hKe.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/0mqtY2T9IVGld83Wg39hKe.
{"copyright_id":"0x5401b1ead981189a55e60365d5d3355e4643d447f157caff346c126bc1dafced","isrc":"QM3DF2243809","name":"Turanım (Slowed + Reverb)","registered_at":"2026-06-05T04:13:48Z","spotify_id":"09CbZ8nJQxZWkDLj3HuJVF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5401b1ead981189a55e60365d5d3355e4643d447f157caff346c126bc1dafced. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/09CbZ8nJQxZWkDLj3HuJVF.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/09CbZ8nJQxZWkDLj3HuJVF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafe762fd8c63cb942954a7513862c0510e77af7d5e5845e70070aedc96d2a63. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2TXE1ZvlNmelUXMRwcmM6z.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/2TXE1ZvlNmelUXMRwcmM6z.