Katzenmusik is the third studio album by the German solo artist Michael Rother. It was released in 1979 and includes the single "Katzenmusik 9" b/w "Katzenmusik 2". The album was recorded between Mar
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82abf12907d216575daaa80715e5f4b7d5f00b1159e93e538e7e5fe1bec382d7. 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/5de413c8-cf2b-4741-ad78-c64ba096b8b8.json and https://artists.proofprofile.net/proofs/artist/5de413c8-cf2b-4741-ad78-c64ba096b8b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Eine Stunde beruhigende Katzenentspannungsmusik
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868256a8401a8d6165fd9b2ba06efed49492eaa969485e39306735d857e4722b. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/QZFML2145801.
Beruhigendes Klavier mit zwitschernden Vögeln
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66a7da30b565fe90bb2695d9cb637361f07edf6c9c04334e1c28e4d3a89d112. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZFML2145802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f036709d7716b765f297ee390d6c2e9ccf50ff4b0f2991ba6f97e7a329252a4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZFML2145803.
Entspannende Lieder für die Katzenschlaftherapie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964dfc7b7b0a8302fe85c43f3d3fbc7e07b02854327bd16e71d4750fa6ff555e. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/QZFML2145811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d3258d176851d0280ae50e12b41ace026a3960420e6607bbbbd944f1495cc7. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/QZFML2145812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd9f83cff5dd668b9b0049a2c58c57123cec9a1360091d3c3d851dd77aca866. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZFML2145813.
Eine Stunde beruhigende Musiktherapie für Katzen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95711ff5fe7bd1d5d1c30a80c5c4ee1c90380fa75d7ad9afdd800b81082991c0. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZFML2145821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9cd4d336db4d43c851a1f7b4a91c7d8a157602f216895b125ca818199a84a0. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZFML2145822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952bc73d2850d3c01b1c9b781bba810ace28d7e54f48815471646469014dd5fa. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZFML2145823.
Zwei Stunden entspannende Musik für Katzen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646e9ed394bea7b2d20b5a20f5496582eb3e9dc1279b5cc655d7e800d3b996d9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZFML2145831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff085065b3773337712ba4989273d3d48f9e8561c1d298fc4fed296041fdc6e1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZFML2145832.
Friedliches Instrumental mit zwitschernden Vögeln
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f69abfc2209efb20c521d74d8537ba45aa383907c99c3cdc3f84db7cf81cad. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZFML2145833.
Beruhigende Schlafmusik für Katzen während der Abwesenheit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00156b083754403043b8902fac8df42a110a76790e555b239f7e6a0f6af2113. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZFML2145841.
Friedliches Klavier mit zwitschernden Vögeln
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501a84ce7e427c8c19e9a1f391dc7ddc93b88e069ed49acbd39e1e8921a0fcf7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZFML2145842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff87c4f3076b31d83fd969806084861843b3bd23cc1a5f61673e90b0b9e7a91. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZFML2145843.
Entspannende Klaviermusik für verschlafene Katzen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29e6538ba5223f449607f12f0fb23876f23656f70be53a6c532fad77b2197ee. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/QZFML2145851.
Hintergrundambiente mit zwitschernden Vögeln
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d36f456a42571cc6604a522295aa332c34de6de72d92d24adce002c75618b8. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZFML2145852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e460dd551752f8727b01d40ff00bdc644d074d3ab365ac8f2c0c14de638011. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZFML2145853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42956519af76365b919858eca5e7788287913b7602fdaa7a680942c25b4c9852. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZFML2145861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb125a4a9cc346e4ee2109f96c414d39a5968f760ac57c618f0a54ec2de42cb. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/QZFML2145862.
Ruhige Geräusche mit zwitschernden Vögeln
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8b41498bf02c453bc8a1f102e253bdcbb00ce37948e565c9bcb4b28e2654ad. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZFML2145863.
Labirinto Celestial da Terra: Dança Estelar sem Fim
Die Krallenherrscher: Bastion des Abenteuers
Kronentiger: Ein Edler Rastplatz für Majestätische Miezekatzen
Regale Pfoten: Majestätische Katzen und ihr Erhabener Ruheort
Die Pfotenmonarchen: Festung der Phantasie
Felines Majestät: Palast der Verspieltheit
Königliche Samtpfoten: Ein Prächtiges Heim für Majestätische Katzen
Königlicher Katzenhof: Die Regale Residenz für Majestätische Miezemeister
Feline Kronenpracht: Schloss der Zeitvergessenheit
Die königlichen Fellnasen: Ein königliches Kätzchen-Dynastie
Kater des Hochadels: Bastion der Erfrischungszeit
Katzenaristokratie: Schlösschen der Abkühlungsstunden
Katzenminze Residenz: Majestätische Felines' Königlicher Ruheort
Königliche Katzen: Festung der Entspannungszeit
Katzenminze Zauberpalast: Die Königliche Oase für Herrschaftliche Katzen
Katzenminze Palast: Erhabene Katzen' Königliche Rückzugsort
Katzenkraut Schloss: Majestätische Felines' Königliche Zuflucht
Sternenlichtkatzenburg: Die Glorreiche Bastion der Majestätischen Felines
Sonnenstrahlkatzenherrschaft: Die Strahlende Festung der Majestätischen Felines
Katzenminze Festung: Regalische Felines' Majestätische Ruhemöglichkeit
Katzenminze Festung: Majestätische Feline Residenz
Katzenminze Anwesen: Herrschaftliche Behausung für Majestätische Felines
Pfotenherzen: Treues Reich Der Haustiere
Haustierhimmel: Kosmische Sternenschätze
Pfotentreue: Von Herzen kommendes Reich der Haustiere
Vierbeiner Utopia: Liebste Wohlfühlstätte
Haustier Zuflucht: Liebster Glückshimmel
Healing Paws: Spa Escapade for Feline Zen
Aventuras Literárias: Perscrutando os Recantos Secretos da Biblioteca Universal
O Abismo da Ficção: Um Refúgio para os Espíritos Inquietos da Imaginação
Paisagens de Sonhos Infinitos: O Santuário da Mente Inquisitiva
Gekrönte Katzen: Königliche Lounges für Majestätische Fellnasen
Fürstliche Miezen: Ein Königliches Domizil für Majestätische Stubentiger
Hochadelige Katzen: Ein Erhabener Rückzugsort für Majestätische Samtpfoten
Gekrönte Katzen: Königlicher Ruheplatz für Majestätische Samtpfoten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b33c2d8da2b1e41f100dddc010a67cb3c9bae095910c0760a4f7bf19e4643d1. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/DEUE22389846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf239d1b8620c1afab54448322e42c6e5865ac570b5d3e99d2e102a49b8ce688e. 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/DEUE22389852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f8c72434e214867bb4a2d5c0d3f11317fc262526ff40b02d00b55c2f529ec9. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZZ972468003.