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 0xf8c825ea8f32421b9bf615e6ed7fb8737c80ebec0c7ade35319f2e1d12427f09. 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/7d912e1f-0ff6-47c4-bcbc-45de083d3162.json and https://artists.proofprofile.net/proofs/artist/7d912e1f-0ff6-47c4-bcbc-45de083d3162.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xc5fe3ec62e3c45325695a03c9fb5a27af72e4bbf4355620a27d69070ba7efb5a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEK270960007.
Böhmerländer Klarinetten-Polka (Solo f. 3 Klarinetten)
Spiel nochmal das böhmische Lied (Polka)
Ja wenn's am schönsten ist... (Abschiedspolka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42e2d688cee70c1200aef9531b66a487b92099381fde7655a34dce3aa63cbfa. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEK270990004.
Deutschmeister Regiments Marsch / In altbewährter Treue
Zwei Mexikaner in Böhmen (Solo für 2 Trompeten)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9958924f150a37c8807545c644823101625a618a0ffaa52f2d6c18345aced0. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ATT250217810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa07031d977a3d43995854576fce73d04cdb258fe55e90b40eb086ecfe45f28. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEK271060001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b51aadcacee326ccc15089272ca1a08238f83a48d413b803e2845ae3310844. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEK270980006.
Die Königstrommler (Bravour-Marsch für 2 Solo Schlagzeuger)
Weil wir seine Freunde sind (Gesangspolka)
Flügelhorn-Feeling (Solo für Flügelhorn)
Vergissmeinnicht (Polka) (Version Stilles Gedenken)
Max und Moritz (Solopolka für Flügelhorn und Tenorhorn)
Vöglein flieg' (Solopolka für Es-Klarinette)
Wenn das kein Grund zum Feiern ist (Gesangspolka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1097012cd84bd7fa9c89d47041e93ec97810a7d17bacfb8fbef5f3ac1a74fc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEK271140002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dace696b21bed8254140f1c25d71889b364ba771664778976bae3b52e874cb3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEK271140016.
Vergissmennicht - Version "Stilles Gedenken"
Hoch' drin im Böhmerwald (Solo für Piccolo Trompete)
Der Tenorhorn-Gott (Bravourpolka für Tenorhorn)
Weites Land (Konzertmarsch) in honorem Ernst Hoffmann
Eine Holzgeschichte - Solopolka für Flöte (Es-Klarinette) und 3 Bb Klarinetten
Eine Karussellfahrt (Solowalzer für Tenorhorn)
Eine Runde Sache (Solo Für Klarinette und Orchester)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3f0ff8d48d8f823ecd703083f1c1d2c2915793ac20e9cd96b2a18d54ade7e8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ATT250216110.
Das große Blasmusiktreffen - Instrumental - 40 Superhits der Blasmusik
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0984209073b012625473e2412416797c45198133d232cf0a3c7ff6d32783c19. 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/ATT250217890.
Das große Blasmusiktreffen - Folge 2 - Instrumental - 40 Superhits der Blasmusik
Die schönsten Märsche, Polkas und Walzer mit Gesang