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 0xa0fdd3a08780125f8c9214e6fe290c7beafc54c3c92f3fe253d01a726ac62269. 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/608a3226-83f4-4ffd-a133-2b8b2d955f8a.json and https://artists.proofprofile.net/proofs/artist/608a3226-83f4-4ffd-a133-2b8b2d955f8a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xabec8247f4b47bb75695f4eeb0d466c89e762dfbd71de909d6339d7e2eeb96dc","isrc":"NLA959700190","name":"It's A Shame","registered_at":"2026-06-29T14:56:59Z","spotify_id":"46pWPWaXqIWtXrU1uwbH3F","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 0xabec8247f4b47bb75695f4eeb0d466c89e762dfbd71de909d6339d7e2eeb96dc. 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/46pWPWaXqIWtXrU1uwbH3F.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/46pWPWaXqIWtXrU1uwbH3F.
It Wasn't Me - Live From Oosterpoort,Netherlands/2001
Losing My Religion - Live From Oosterpoort,Netherlands/2001
Michel - Live From Pinkpop,Netherlands/2003
Hail - Live From Denk Aan Henk,Netherlands/2003
Searching - Live From Denk Aan Henk,Netherlands/2003
{"copyright_id":"0x5ac7f4a4123ebcd7b9e8f80519aa1d6f1adf945f81696a32dddb11a694a33b2c","isrc":"NLA950100032","name":"Love - Acoustic Version","registered_at":"2026-06-29T04:07:11Z","spotify_id":"2ljhzUYsTlorUizGiqjeJS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac7f4a4123ebcd7b9e8f80519aa1d6f1adf945f81696a32dddb11a694a33b2c. 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/2ljhzUYsTlorUizGiqjeJS.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/2ljhzUYsTlorUizGiqjeJS.
Nobody's Wife - 2 Meter Sessie Reggae Version
Break Down The Wall - Acoustic Version For Veronica FM
{"copyright_id":"0xcf71799f143fb480c0c33d7f346bed490f0ffd7d42229ce1985d10bbfef65ed2","isrc":"NLA950400052","name":"Falling Sun","registered_at":"2026-06-29T15:00:11Z","spotify_id":"0zOFHmdyTmRu2eC9uVFYNQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf71799f143fb480c0c33d7f346bed490f0ffd7d42229ce1985d10bbfef65ed2. 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/0zOFHmdyTmRu2eC9uVFYNQ.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/0zOFHmdyTmRu2eC9uVFYNQ.
One Word - Acoustic / Live From Wisseloord Studios,Netherlands/2005
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba92a041b0862a58658157207d0133560f52d943eb164132b68e86e6356b2723. 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/5aYFHcmjFYMVlg9Gzcwznj.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/5aYFHcmjFYMVlg9Gzcwznj.
Who's Your Momma (including smash hit Lost)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8148c3666d0fe9924006376a549bccc055d8ee652b4885fdeacf0b0080bf61. 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/76WYl1uoqqLhOra08R4K6Y.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/76WYl1uoqqLhOra08R4K6Y.
Sacrifice - Live At Gelredome, Arnhem / 2008
Ball And Chain - Live At Gelredome, Arnhem / 2008
Might As Well - Live At Gelredome, Arnhem / 2008
Everything - Live At Gelredome, Arnhem / 2008
If You Were Mine - Live At Gelredome, Arnhem / 2008
One Word - Live At Gelredome, Arnhem / 2008
Jerusalem - Live At Gelredome, Arnhem / 2008
If I Go - Live At Gelredome, Arnhem / 2008
Good God - Live At Gelredome, Arnhem / 2008
More Than You Deserve - Live At Gelredome
Ms. Crazy - Live From Toomler,Amsterdam,Netherlands/2011
Killer Bee - Live From Toomler,Amsterdam,Netherlands/2011
What Have You Done - Live From Toomler,Amsterdam,Netherlands/2011
Down & Dirty - Live From Toomler,Amsterdam,Netherlands/2011
Been Here Before - Live From Toomler,Amsterdam,Netherlands/2011
Better Off Alone - Live From Toomler,Amsterdam,Netherlands/2011
Jerusalem - Live From Toomler,Amsterdam,Netherlands/2011
Modern World - Live From Toomler,Amsterdam,Netherlands/2011
To Get Her Together (Including Live At Toomler)
For Bitter Or Worse - Live At Symphonica In Rosso
The Good Life - Live At Symphonica In Rosso
Pretending As Always - Live At Symphonica In Rosso
Three Days In A Row - Live At Symphonica In Rosso
Are You Lonely - Live At Symphonica In Rosso
Down & Dirty - Live At Symphonica In Rosso
Nothing At All - Live At Symphonica In Rosso
Modern World - Live At Symphonica In Rosso
I Won't Play That Game - Live At Symphonica In Rosso
Killer Bee - Live At Symphonica In Rosso
I'm A Cliché - Live At Symphonica In Rosso
Nobody's Wife - Live At Symphonica In Rosso
Fake It Till We Die (Podcast Aflevering 1)
Fake It Till We Die - Podcast Aflevering 1
Fake It Till We Die (Podcast Aflevering 2)
Fake It Till We Die - Podcast Aflevering 2
Fake It Till We Die (Podcast Aflevering 3)
Fake It Till We Die - Podcast Aflevering 3
{"copyright_id":"0xa6548e4fa09d6ffbbc695065af726a4b7bb654acc8e730b27d58135fedab31bc","isrc":"NLXA92100002","name":"Something Better","registered_at":"2026-06-29T14:57:49Z","spotify_id":"65sWzWaUHTyhPXzHIWp05E","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6548e4fa09d6ffbbc695065af726a4b7bb654acc8e730b27d58135fedab31bc. 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/65sWzWaUHTyhPXzHIWp05E.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/65sWzWaUHTyhPXzHIWp05E.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71cdb07725a4f67894e08677e5c444599e9531d629707bbe45fcf6733b2b022. 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/6Zdqcxtwx0TwkXhs7LwIru.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/6Zdqcxtwx0TwkXhs7LwIru.
Jan Douwe Kroeske presents: The Best of 2 Meter Sessions 1987-2009
Trouwfeest | Bruiloft | Là-bas, au Connemara
Jan Douwe Kroeske presents: 2 Meter Sessions, Vol. 9
{"copyright_id":"0x71d78fb8a41f59dd3b6c5a425aa6981465e20d4796cff9d4a39fb6d2f9b7f7d3","isrc":"NL07C1700412","name":"I Alone - 2 Meter Session","registered_at":"2026-06-26T23:53:54Z","spotify_id":"2ZzW9mXf2n4iNj4icRPEz3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d78fb8a41f59dd3b6c5a425aa6981465e20d4796cff9d4a39fb6d2f9b7f7d3. 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/2ZzW9mXf2n4iNj4icRPEz3.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/2ZzW9mXf2n4iNj4icRPEz3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d93e1d948c9abd835e167727d13c86550e3c526f9a08a70497d138e1a33caa. 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/0kQW438RAa27ixstP4bIhD.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/0kQW438RAa27ixstP4bIhD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2f4a462e7e173d319a5605511482bdb1809e00f9ed7674861e60e1b285288d. 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/0NDEHstGl9GcCBHAzLOqHy.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/0NDEHstGl9GcCBHAzLOqHy.