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 0xff1f422f4cbe56df7ea7fa3489e8b6d7f73245bdab12a745f712ece85bdf7e4a. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36153fb3-fcd6-4d99-8dba-4c4d0b13cc13.json and https://artists.proofprofile.net/proofs/artist/36153fb3-fcd6-4d99-8dba-4c4d0b13cc13.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hansel and Gretel, Vorspiel zu Act I: Daheim
Opernchor des Deutschen Nationaltheaters Weimar
Hänsel und Gretel, Vorspiel zu Act III: Knusperhäuschen
Hansel and Gretel, Act I, Szene 1: Suse, liebe Suse
Hänsel und Gretel, Act III, Szene 1: Der kleine Taumann
Hansel and Gretel, Act I, Szene 2: Holla
Hänsel und Gretel, Act III, Szene 2: Bleib stehn!
Hansel and Gretel, Act I, Szene 3: Rallalala
Hänsel und Gretel, Act III, Szene 3: Knusper knusper Knäuschen
Hansel and Gretel, Vorspiel Act II: Hexenritt
Hänsel und Gretel, Act III, Szene 3: Hu, wie mir vor der Hexe graut!
Hansel and Gretel, Act II, Szene 1: Ein Männlein steht im Walde
Hänsel und Gretel, Act III, Szene 3: Auf! Wach auf, mein Jüngelchen
Hansel and Gretel, Act II, Szene 2: Der kleine Sandmann
Hänsel und Gretel, Act III, Szene 3, Knusperwalzer: Juchhei! Nun ist die Hexe tot
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12077728d3397dc8366fb9e139bfbed6ca88cc07d5c386207ad9250d7e06681d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA141483807.
Hansel and Gretel, Act II, Szene 2: Abendsegen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b7967d0f43bc46a06bf919c69a60160d9c3b2c2f1c7d9a1963df4c2080994b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA141483708.
Hänsel und Gretel, Act III, Szene 4: Erlöst, befreit!
Hansel and Gretel, Act II, Szene 3: Pantomime
Hänsel und Gretel, Act III, Letzte Szene: Vater, Mutter
Konzert Für Klarinette Und Orchester A-Dur KV 622: Allegro
Konzert Für Klarinette Und Orchester A-Dur KV 622: Adagio 1
Konzert Für Klarinette Und Orchester A-Dur KV 622: Rondo
Konzert Für Klarinette Und Orchester A-Dur KV 622: Adagio 2