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 0x02c4f5f0032af1a433b7fa2d0ad8908e48cf3de826d9d972b015ec764cfad738. 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/20661312-e860-4859-a50e-bf1d87fa640c.json and https://artists.proofprofile.net/proofs/artist/20661312-e860-4859-a50e-bf1d87fa640c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aanraking (NPO Radio 1 Lockdown Sessions)
Aanraking - NPO Radio 1 Lockdown Sessions
Yentl en de Boer de Serie: Aflevering 1 (Music from the Original TV Series)
Yentl en de Boer de Serie: Aflevering 1-3 (Music from the Original TV Series)
Yentl en de Boer de Serie (Music from the Original TV Series)
Aanraking - Live in Diligentia - Den Haag
Ik zei dat ik ging - Live in Oude Luxor Theater - Rotterdam
Mens zijn - Live in Stadsschouwburg Velsen - IJmuiden
Hoe zou het met jou gaan - Live in De Maaspoort - Venlo
Mama is moe - Live in Posthuis Theater - Heerenveen
Concentratie - Live in De Lievekamp - Oss
Mysterious Girl - Live in Theater De Lampegiet - Veenendaal
Jij zit in mijn hoofd - Live in TAQA Theater de Vest - Alkmaar
De slechte raadgever - Live in De Kleine Komedie - Amsterdam
Hij heb tegen me gezegd - Live in Schouwburg Amstelveen - Amstelveen
Het is begonnen - Live in Koninklijk Theater Carré - Amsterdam
Het hoofd - Live in Schouwburg Het Park - Hoorn
De laatste dag - Live in Stadsschouwburg Nijmegen - Nijmegen
Hubbelbubbelprik - De liedjes uit het boek
Dansen, dansen, dansen (reprise Hubbelbubbelprik)
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 0x23f361cbeaa8a31240e5ae2e507972442a257af7834d3162755f13d3f0631d27. 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/6QLiBIOQaeI8v7keKkfHxR.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/6QLiBIOQaeI8v7keKkfHxR.