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 0x0a12f4264c349346999da96cab63af33c5e514315ebbdaadea80545069b024b9. 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/dbe47bb7-54cd-4a98-acc2-9602b116d420.json and https://artists.proofprofile.net/proofs/artist/dbe47bb7-54cd-4a98-acc2-9602b116d420.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 0xfb394f298fa4694acc0aa306306e16e9b7c98e8c34f526da5cd31e12263ed834. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6vX1XY9HFyGA7z3jh9MiGb.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/6vX1XY9HFyGA7z3jh9MiGb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467f2577cd80f436876cbab1faf70022d57709e7e1c1e385efb727771cef796f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7wZgeUKoaoUwhidY72oZvU.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/7wZgeUKoaoUwhidY72oZvU.
Turning: Turning Back - Live at Berklee Performance Center, Boston, MA - October 1982
Beyond The Night Sky (Lullabies For Guitar)
Now and Then: Folk Songs for the 21st Century
Now And Then - Folk Songs For The 21st Century
Shortening Bread - Live in the Studio - E.S.E
Single Girl - Live in the Studio - E.S.E
Goodbye Pork Pie Hat - Live in the Studio - E.S.E
Bury Me Not - Live in the Studio - E.S.E
Medley (Round Midnight/Little Rootie Tootie) - Live in the Studio - E.S.E
The Water Garden - Live in the Studio - E.S.E
Swing Low, Sweet Chariot - Live in the Studio - E.S.E
St. James Infirmary - Live in the Studio - E.S.E
Christ the Apple Tree / Once in Royal David's City
{"copyright_id":"0xfbe9b994923ff6185387f1a2083d672aa06bce08b47c35e7b581cef2400151e2","isrc":"USWH10200048","name":"Christ the Apple Tree / Once in Royal David's City","registered_at":"2026-06-20T06:54:27Z","spotify_id":"0HwfiEeV59NOiBvzVWbku0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe9b994923ff6185387f1a2083d672aa06bce08b47c35e7b581cef2400151e2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0HwfiEeV59NOiBvzVWbku0.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/0HwfiEeV59NOiBvzVWbku0.
{"copyright_id":"0x040ea60b5375cb587d1316113ce2914ae93fb0b4a4d7b51b5cad1fcebfa7ef98","isrc":"USWH19501046","name":"The Holly and the Ivy","registered_at":"2026-06-19T11:57:50Z","spotify_id":"5a7R2QVbaro9TGBuy8ND7l","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040ea60b5375cb587d1316113ce2914ae93fb0b4a4d7b51b5cad1fcebfa7ef98. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5a7R2QVbaro9TGBuy8ND7l.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/5a7R2QVbaro9TGBuy8ND7l.
A Quiet Revolution: 30 Years Of Windham Hill
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb394f298fa4694acc0aa306306e16e9b7c98e8c34f526da5cd31e12263ed834. 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/7hC9B4J4YIWWyLVB3Rblj8.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/7hC9B4J4YIWWyLVB3Rblj8.
Clockwork - Live at Berklee Performance Center, Boston, MA - October 1982
{"copyright_id":"0xe56ad9ce4e1189994112dc489059201a8f2976ee126b5de3656226ae309705b7","isrc":"USWH18301048","name":"Clockwork - Live at Berklee Performance Center, Boston, MA - October 1982","registered_at":"2026-06-24T02:39:29Z","spotify_id":"01uFEYRR7mXgKdyHdGCYN0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56ad9ce4e1189994112dc489059201a8f2976ee126b5de3656226ae309705b7. 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/01uFEYRR7mXgKdyHdGCYN0.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/01uFEYRR7mXgKdyHdGCYN0.
Narada Guitar 2 (The Best Of Two Decades)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb394f298fa4694acc0aa306306e16e9b7c98e8c34f526da5cd31e12263ed834. 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/6lFgrleBV3n2aJ4IMjsiBg.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/6lFgrleBV3n2aJ4IMjsiBg.
{"copyright_id":"0x3f7fac1f6ab8a314aa50beb53efc6f6f1d548e6d56e0afc6ea5724d3688c98a3","isrc":"USWH18301057","name":"Turning: Turning Back","registered_at":"2026-06-20T06:54:01Z","spotify_id":"52jhjm7djxs9xldKh39iIl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7fac1f6ab8a314aa50beb53efc6f6f1d548e6d56e0afc6ea5724d3688c98a3. 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/52jhjm7djxs9xldKh39iIl.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/52jhjm7djxs9xldKh39iIl.
{"copyright_id":"0x040ea60b5375cb587d1316113ce2914ae93fb0b4a4d7b51b5cad1fcebfa7ef98","isrc":"USWH19501046","name":"The Holly and the Ivy","registered_at":"2026-06-19T11:57:50Z","spotify_id":"71UPvM4Y0dgA6yexAsIVGe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040ea60b5375cb587d1316113ce2914ae93fb0b4a4d7b51b5cad1fcebfa7ef98. 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/71UPvM4Y0dgA6yexAsIVGe.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/71UPvM4Y0dgA6yexAsIVGe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467f2577cd80f436876cbab1faf70022d57709e7e1c1e385efb727771cef796f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6OuGf5ss7gzs1ftbnFoyh6.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/6OuGf5ss7gzs1ftbnFoyh6.
{"copyright_id":"0xbb912fccf85fced9322dd502c835ca1bbb6a02ed7da9be585bf1420ef8b1cdf2","isrc":"USWH17901013","name":"Variations on Clair de Lune","registered_at":"2026-06-27T03:42:36Z","spotify_id":"4o6lxt4i8tnSUgnHTRZVEe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb912fccf85fced9322dd502c835ca1bbb6a02ed7da9be585bf1420ef8b1cdf2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4o6lxt4i8tnSUgnHTRZVEe.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/4o6lxt4i8tnSUgnHTRZVEe.