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 0x26214c6eb5fa81d4849874c6ac6acb208f829dc026f23e85f7dd0096c3c41413. 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/01c49352-cef5-438b-b65d-ee028d91787c.json and https://artists.proofprofile.net/proofs/artist/01c49352-cef5-438b-b65d-ee028d91787c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lofi Girl – chill beats for LEGO building
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 0x19913dd9ba8e79e091e1a0b03d4815f953f918da2eceb01085ef8b2b409a2fcc. 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/7yZLNobQ4ZEibMQOM9GxGz.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/7yZLNobQ4ZEibMQOM9GxGz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc6d1caf415729f915f68f1c92a8a5fd21a02a04040a1e600abdc0402c63611. 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/5QgMtqiGaRBH8HxEj7qKAt.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/5QgMtqiGaRBH8HxEj7qKAt.
{"copyright_id":"0xdb4b3d149671e2f4ef79f22e58d2e017bfdb2de36d9705b8018c43ff5aaf909f","isrc":"GBKQU2204511","name":"Last Call","registered_at":"2026-06-04T16:19:39Z","spotify_id":"4gD3spTaQIJfNNmDqjBJe0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4b3d149671e2f4ef79f22e58d2e017bfdb2de36d9705b8018c43ff5aaf909f. 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/4gD3spTaQIJfNNmDqjBJe0.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/4gD3spTaQIJfNNmDqjBJe0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f53738e05d58f5b34ad4912af4ba79421c1e350dafc1c3b6c94e939ba27eaf0. 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/4yJsn3ZYWrRXDlCWKPh4NR.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/4yJsn3ZYWrRXDlCWKPh4NR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783c248a4ce2db20df83866c533cf0ae088784d6c746380cb858e51b16579a3f. 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/3CIzgmlxg6zwjYvruaaw22.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/3CIzgmlxg6zwjYvruaaw22.
Lofi Girl x Chess.com - Chill beats to play chess to
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6f24bd1583bc12ad4af08a9d0f1629e6c00834a0dad5f8c6262cad85bf4912. 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/2nrnFl0Hjbs00XziQP9R8p.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/2nrnFl0Hjbs00XziQP9R8p.
{"copyright_id":"0x6d62be21ff246cd8d3fc15d4259bc9f8a408dcffa95c5b405ccdff6fff99ebb8","isrc":"NL1LE2001078","name":"Better, Together, Forever","registered_at":"2026-06-09T07:26:47Z","spotify_id":"4iz1E2hsHhFniY7cb8Kf1U","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d62be21ff246cd8d3fc15d4259bc9f8a408dcffa95c5b405ccdff6fff99ebb8. 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/4iz1E2hsHhFniY7cb8Kf1U.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/4iz1E2hsHhFniY7cb8Kf1U.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4b3d149671e2f4ef79f22e58d2e017bfdb2de36d9705b8018c43ff5aaf909f. 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/4WfwLflqd5Jeh9c7y6kH3i.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/4WfwLflqd5Jeh9c7y6kH3i.
{"copyright_id":"0xeec5fa1df58b02e01f1d22b88c7ab250afedfe9877e63f70cf0257e16ac31c3a","isrc":"GBKQU2101965","name":"Over The Moon","registered_at":"2026-06-04T13:20:06Z","spotify_id":"6mVhoEYxsGWBYIn2lnVU7f","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec5fa1df58b02e01f1d22b88c7ab250afedfe9877e63f70cf0257e16ac31c3a. 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/6mVhoEYxsGWBYIn2lnVU7f.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/6mVhoEYxsGWBYIn2lnVU7f.