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 0xc9359607b76ea8b43b56bc4e1d39c08f56524a25d0e3d32987e2909b622ae3d0. 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/2eca6eab-17f7-4212-b87e-7e9cbdeff30a.json and https://artists.proofprofile.net/proofs/artist/2eca6eab-17f7-4212-b87e-7e9cbdeff30a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sweet Memory - Live at Birmingham Odeon, 29th April 1983
That's Life - Live at Birmingham Odeon, 29th April 1983
The Snake - Live at Birmingham Odeon, 29th April 1983
Mockingbird - Live at Birmingham Odeon, 29th April 1983
Sun Sun Sun - Live at Birmingham Odeon, 29th April 1983
Blame - Live at Birmingham Odeon, 29th April 1983
April Fool - Live at Birmingham Odeon, 29th April 1983
The Entertainer - Live at Birmingham Odeon, 29th April 1983
Sign of the Times - Live at Birmingham Odeon, 29th April 1983
Baby I'm Yours - Live at Birmingham Odeon, 29th April 1983
Madness - Live at Birmingham Odeon, 29th April 1983
Slick Trick - Live at Birmingham Odeon, 29th April 1983
Crime of Passion - Live at Birmingham Odeon, 29th April 1983
Ci Ya Ya - Live at Birmingham Odeon, 29th April 1983
Indian Summer - Live at Birmingham Odeon, 29th April 1983
The Reason - Live at Birmingham Odeon, 29th April 1983
Burning - Live at Birmingham Odeon, 29th April 1983
The Clapping Song - Live at Birmingham Odeon, 29th April 1983
Belle-Issima! Sweet Memories . . . (Volume 2)
Belle-Issima! Sweet Memories . . . (Volume 3)
Sweet Memory - (Live at the Birmingham Odeon, 29th April 1983)
That's Life - (Live at the Birmingham Odeon, 29th April 1983)
The Snake - (Live at the Birmingham Odeon, 29th April 1983)
Mockingbird - (Live at the Birmingham Odeon, 29th April 1983)
Sun Sun Sun - (Live at the Birmingham Odeon, 29th April 1983)
Blame - (Live at the Birmingham Odeon, 29th April 1983)
April Fool - (Live at the Birmingham Odeon, 29th April 1983)
The Entertainer - (Live at the Birmingham Odeon, 29th April 1983)
Sign of the Times - (Live at the Birmingham Odeon, 29th April 1983)
Baby I'm Yours - (Live at the Birmingham Odeon, 29th April 1983)
Madness - (Filmed Live at the Birmingham Odeon, 29th April 1983)
Slick Trick - (Filmed Live at the Birmingham Odeon, 29th April 1983)
Crime of Passion - (Live at the Birmingham Odeon, 29th April 1983)
Ci Ya Ya - (Filmed Live at the Birmingham Odeon, 29th April 1983)
Indian Summer - (Live at the Birmingham Odeon, 29th April 1983)
The Reason - (Live at the Birmingham Odeon, 29th April 1983)
Burning - (Live at the Birmingham Odeon, 29th April 1983)
The Clapping Song - (Live at the Birmingham Odeon, 29th April 1983)
Sign Of The Times - Orchestral Extended Version
Sign Of The Times - Main Extended Version
Sign Of The Times - Orchestra & Vocal Version
{"copyright_id":"0xcecb0c40647d2e1706cadfccd229b5f59ab74f90e394b643c24ea6f5c61d1207","isrc":"GBBLG8400093","name":"Sign of the Times (Extended 12\" Remix)","registered_at":"2026-06-19T20:49:55Z","spotify_id":"3UN7X8Skcf3HZsiZTfTmZD","type":"track"}
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 0xcecb0c40647d2e1706cadfccd229b5f59ab74f90e394b643c24ea6f5c61d1207. 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/3UN7X8Skcf3HZsiZTfTmZD.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/3UN7X8Skcf3HZsiZTfTmZD.
{"copyright_id":"0xfe5066dc4a6242ac9011b582b53a8c267df8ac798e9243b19861f160e6fa82b3","isrc":"GBBLG8400091","name":"The Clapping Song - Extended 12\" Mix","registered_at":"2026-06-25T03:14:56Z","spotify_id":"663MpxYOOPtSRdCgDMFUBS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5066dc4a6242ac9011b582b53a8c267df8ac798e9243b19861f160e6fa82b3. 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/663MpxYOOPtSRdCgDMFUBS.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/663MpxYOOPtSRdCgDMFUBS.