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 0x2dfb81fd488724250a1df7e9d234fb38cac1062b2c6c232b5f1f67f2efe6d97f. 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/76a0ddd1-60b2-4787-9a76-a55dc055aacf.json and https://artists.proofprofile.net/proofs/artist/76a0ddd1-60b2-4787-9a76-a55dc055aacf.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 0x75f2cfde359a31d122f129ae4865a3f0929e6733446569e3ea9ae387621ae257. 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/5I9J57mnTlQoGmRjJleeuV.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/5I9J57mnTlQoGmRjJleeuV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286a64c00d4ebf07a6e17aa4a9d96ba966b0a16f5f5c47e6457be58ce42efd50. 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/0AxCCtFJSon4e7p5ikxqVj.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/0AxCCtFJSon4e7p5ikxqVj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55890baf9d342369f0cbfa87f762bc425cddfd11e16c7ab124a9b8a2bcb0493. 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/1QCJotDwcBq4xIepCNoycE.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/1QCJotDwcBq4xIepCNoycE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55251fc7caaa2f245fd65a4c36f1336a5fd74dd4d2d5327d789ad8b7a1b9dcaa. 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/0mN4DNilFlp3TYWUHCVU0G.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/0mN4DNilFlp3TYWUHCVU0G.
{"copyright_id":"0xdb0b80a03b0ef058bc0c23193e3af12ed85584591f8e666667d3cc7ecf3bec8d","isrc":"CA5KR2438009","name":"Pal Bellakeo RMX","registered_at":"2026-06-26T20:50:26Z","spotify_id":"32Dcv5ntvD4s9cmASEbbtj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0b80a03b0ef058bc0c23193e3af12ed85584591f8e666667d3cc7ecf3bec8d. 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/32Dcv5ntvD4s9cmASEbbtj.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/32Dcv5ntvD4s9cmASEbbtj.
{"copyright_id":"0xdb0b80a03b0ef058bc0c23193e3af12ed85584591f8e666667d3cc7ecf3bec8d","isrc":"CA5KR2438009","name":"Pal Bellakeo RMX","registered_at":"2026-06-26T20:50:26Z","spotify_id":"3PsZYamEqUtcpzpBqmQAAi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0b80a03b0ef058bc0c23193e3af12ed85584591f8e666667d3cc7ecf3bec8d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3PsZYamEqUtcpzpBqmQAAi.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/3PsZYamEqUtcpzpBqmQAAi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb6415dd90608a5bca29df1d6bac19a0bff0e7278a0e341814ee81e449fd5e2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6rOCJkeYK98PKs9wwJ6D41.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/6rOCJkeYK98PKs9wwJ6D41.