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 0x2b98d4fe2e6b6107cf1b90fd53d84cb9d6f10119a0b37a578d8d7244081f90e6. 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/ab651f70-530e-43c2-9f14-ff1d54267b2e.json and https://artists.proofprofile.net/proofs/artist/ab651f70-530e-43c2-9f14-ff1d54267b2e.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 0x01420e96174f7f1d2c953d667107176118908614ccdf8c85e48e297e7b4e2d77. 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/6EXeVO1ziO5lgNd9vZxfLa.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/6EXeVO1ziO5lgNd9vZxfLa.
Ain't No Sunshine (Dub Mix) - bonus track
The Great Rocksteady Swindle (Deluxe Edition)
Working Overtime (Live at Sugarshack Sessions)
The Slackers Live at Sugarshack Sessions
Spin I'm In (Live at Sugarshack Sessions)
Information Error (Live at Sugarshack Sessions)
Statehouse - Subatomic Sound System 12” dub mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9dc9d3d32c7d1f1daf6df77f07065548ec55b0a71bd415ecc3b9625e18d21b6. 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/0ysJ168TeGwpsJ641kzNh0.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/0ysJ168TeGwpsJ641kzNh0.
{"copyright_id":"0x5e767fd5e39a5bf3aed2a74a52bc20ba3f298933296d1fba947ca8d631ba85cb","isrc":"USHEL0302203","name":"Have The Time","registered_at":"2026-06-24T18:21:17Z","spotify_id":"2xjh7wIEKdJZpQWQgyqAKt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e767fd5e39a5bf3aed2a74a52bc20ba3f298933296d1fba947ca8d631ba85cb. 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/2xjh7wIEKdJZpQWQgyqAKt.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/2xjh7wIEKdJZpQWQgyqAKt.