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 0x0077ad83336e24fa2316f9c0dc50a951b2758b04714e5989fcd962a56f9fec27. 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/247e9bb3-84c0-4979-9ba5-956b0e9f3328.json and https://artists.proofprofile.net/proofs/artist/247e9bb3-84c0-4979-9ba5-956b0e9f3328.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 0xe829c5c811a4d9bd30dcb4a8f2372eb447be2b998cd9108ffea6641d965307f5. 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/6ToPc0rgvAmZlWe6hrM8Vc.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/6ToPc0rgvAmZlWe6hrM8Vc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3ba0e9d3515d97ab264bff276c650aa644064259397078880aaefcabe5b815. 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/3lZPTZ45ShYGGG70gXWcdo.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/3lZPTZ45ShYGGG70gXWcdo.
{"copyright_id":"0x69721c196fce8ced33cd59b518f9d359238be5a7db372bd36993e7cd73717cdc","isrc":"DEPI82410351","name":"Eshgh Ke Nist Ke Jange","registered_at":"2026-06-29T18:01:46Z","spotify_id":"7xKOJI4T5AfFvCXs0gGx8g","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69721c196fce8ced33cd59b518f9d359238be5a7db372bd36993e7cd73717cdc. 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/7xKOJI4T5AfFvCXs0gGx8g.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/7xKOJI4T5AfFvCXs0gGx8g.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51234f7b79603a0928230b0584cf1524551352698b78a14506bbf59b1ea62546. 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/0i6jkPdA4vvH6cceg9ZWbr.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/0i6jkPdA4vvH6cceg9ZWbr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebd36506196fe487399fdf16c9b5fa17dda5143814bafc1cf832ff19587debb. 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/7vHC8JeYRbhdwH6phf8A2p.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/7vHC8JeYRbhdwH6phf8A2p.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5452ce7e0b4879f7c1f114680d6adf87368e4c65083649c6a45fbe00737950. 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/0KMDo8bcyoSuALfFPmQkK2.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/0KMDo8bcyoSuALfFPmQkK2.