{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:RZABYULMONOFUWSTHJTMUDKKB5","short_pith_number":"pith:RZABYULM","canonical_record":{"source":{"id":"2507.20896","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-07-28T14:48:07Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"6e47a654c188313e2ae93a5991fa40267a2a02278210ac36e3c98c8eb39ccb21","abstract_canon_sha256":"2632ba2efdb81beecf3aee8717159a2443d8ecd4effce8ce213e51edd036220e"},"schema_version":"1.0"},"canonical_sha256":"8e401c516c735c5a5a533a66ca0d4a0f6fee2229f6a9656257bdb30e6cae141b","source":{"kind":"arxiv","id":"2507.20896","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.20896","created_at":"2026-07-05T11:44:27Z"},{"alias_kind":"arxiv_version","alias_value":"2507.20896v1","created_at":"2026-07-05T11:44:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.20896","created_at":"2026-07-05T11:44:27Z"},{"alias_kind":"pith_short_12","alias_value":"RZABYULMONOF","created_at":"2026-07-05T11:44:27Z"},{"alias_kind":"pith_short_16","alias_value":"RZABYULMONOFUWST","created_at":"2026-07-05T11:44:27Z"},{"alias_kind":"pith_short_8","alias_value":"RZABYULM","created_at":"2026-07-05T11:44:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:RZABYULMONOFUWSTHJTMUDKKB5","target":"record","payload":{"canonical_record":{"source":{"id":"2507.20896","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-07-28T14:48:07Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"6e47a654c188313e2ae93a5991fa40267a2a02278210ac36e3c98c8eb39ccb21","abstract_canon_sha256":"2632ba2efdb81beecf3aee8717159a2443d8ecd4effce8ce213e51edd036220e"},"schema_version":"1.0"},"canonical_sha256":"8e401c516c735c5a5a533a66ca0d4a0f6fee2229f6a9656257bdb30e6cae141b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:44:27.714627Z","signature_b64":"xgVGSc1xIYFMpqrpEt1uRhsH3KfdLTrSkdxNMPHfj9EfLDG0+SPhwgFu2yiY6VleN2AjYkiXmp6X/KWp1uUEDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8e401c516c735c5a5a533a66ca0d4a0f6fee2229f6a9656257bdb30e6cae141b","last_reissued_at":"2026-07-05T11:44:27.714037Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:44:27.714037Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.20896","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:44:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QRE/hBPoqaoUIfzlfZKevEZxkyjD2mM4TcsOSQMBQG1R8dV1Z0UsCsXlGU0W+zUVM1aRWb8LmWYT6QBFTKsRCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T16:57:59.191472Z"},"content_sha256":"5c0e57cd57953c78fe72b55a3c04b006fd2e3906ef97d3057364436724f12a1c","schema_version":"1.0","event_id":"sha256:5c0e57cd57953c78fe72b55a3c04b006fd2e3906ef97d3057364436724f12a1c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:RZABYULMONOFUWSTHJTMUDKKB5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spectral tuning of hyperbolic shear polaritons in monoclinic gallium oxide via isotopic substitution","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"physics.optics","authors_text":"Aditha S. Senarath, Alexander Paarmann, Andrea Ardenghi, Christian Carbogno, Elena Gelzinyte, Felix G. Kaps, Giulia Carini, Gonzalo Alvarez-Perez, Jakob Wetzel, J. Michael Klopf, Johannes T. Margraf, Joshua D. Caldwell, Karsten Reuter, Katja Diaz-Granados, Lukas M. Eng, Markus R. Wagner, Martin Wolf, Mathias Schubert, Maximilian Obst, Mohit Pradhan, Niclas S. Mueller, Oliver Bierwagen, Piero Mazzolini, Raghunandan Balasubramanyam Iyer, Richarda Niemann, Ryan A. Kowalski, Saurabh Dixit, Susanne Kehr, Thomas G. Folland","submitted_at":"2025-07-28T14:48:07Z","abstract_excerpt":"Hyperbolic phonon polaritons - hybridized modes arising from the ultrastrong coupling of infrared light to strongly anisotropic lattice vibrations in uniaxial or biaxial polar crystals - enable to confine light to the nanoscale with low losses and high directionality. In even lower symmetry materials, such as monoclinic $\\beta$-Ga$_2$O$_3$ (bGO), hyperbolic shear polaritons (HShPs) further enhance the directionality. Yet, HShPs are intrinsically supported only within narrow frequency ranges defined by the phonon frequencies of the host material. Here, we report spectral tuning of HShPs in bGO "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.20896","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2507.20896/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:44:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MbY8B93HhSbvspMOaNQv1fmoYHpwx8axC/UevTALIQDvDIOziDSR2/cWyxbiO4C0c0n1A19KL2XJLDsSDxJ4DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T16:57:59.191852Z"},"content_sha256":"ac4f82f7c38c73934e2c2781940899b5530aaba39f745e3b7eaa0090ba3181e5","schema_version":"1.0","event_id":"sha256:ac4f82f7c38c73934e2c2781940899b5530aaba39f745e3b7eaa0090ba3181e5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RZABYULMONOFUWSTHJTMUDKKB5/bundle.json","state_url":"https://pith.science/pith/RZABYULMONOFUWSTHJTMUDKKB5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RZABYULMONOFUWSTHJTMUDKKB5/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-06T16:57:59Z","links":{"resolver":"https://pith.science/pith/RZABYULMONOFUWSTHJTMUDKKB5","bundle":"https://pith.science/pith/RZABYULMONOFUWSTHJTMUDKKB5/bundle.json","state":"https://pith.science/pith/RZABYULMONOFUWSTHJTMUDKKB5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RZABYULMONOFUWSTHJTMUDKKB5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:RZABYULMONOFUWSTHJTMUDKKB5","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"2632ba2efdb81beecf3aee8717159a2443d8ecd4effce8ce213e51edd036220e","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-07-28T14:48:07Z","title_canon_sha256":"6e47a654c188313e2ae93a5991fa40267a2a02278210ac36e3c98c8eb39ccb21"},"schema_version":"1.0","source":{"id":"2507.20896","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.20896","created_at":"2026-07-05T11:44:27Z"},{"alias_kind":"arxiv_version","alias_value":"2507.20896v1","created_at":"2026-07-05T11:44:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.20896","created_at":"2026-07-05T11:44:27Z"},{"alias_kind":"pith_short_12","alias_value":"RZABYULMONOF","created_at":"2026-07-05T11:44:27Z"},{"alias_kind":"pith_short_16","alias_value":"RZABYULMONOFUWST","created_at":"2026-07-05T11:44:27Z"},{"alias_kind":"pith_short_8","alias_value":"RZABYULM","created_at":"2026-07-05T11:44:27Z"}],"graph_snapshots":[{"event_id":"sha256:ac4f82f7c38c73934e2c2781940899b5530aaba39f745e3b7eaa0090ba3181e5","target":"graph","created_at":"2026-07-05T11:44:27Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2507.20896/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Hyperbolic phonon polaritons - hybridized modes arising from the ultrastrong coupling of infrared light to strongly anisotropic lattice vibrations in uniaxial or biaxial polar crystals - enable to confine light to the nanoscale with low losses and high directionality. In even lower symmetry materials, such as monoclinic $\\beta$-Ga$_2$O$_3$ (bGO), hyperbolic shear polaritons (HShPs) further enhance the directionality. Yet, HShPs are intrinsically supported only within narrow frequency ranges defined by the phonon frequencies of the host material. Here, we report spectral tuning of HShPs in bGO ","authors_text":"Aditha S. Senarath, Alexander Paarmann, Andrea Ardenghi, Christian Carbogno, Elena Gelzinyte, Felix G. Kaps, Giulia Carini, Gonzalo Alvarez-Perez, Jakob Wetzel, J. Michael Klopf, Johannes T. Margraf, Joshua D. Caldwell, Karsten Reuter, Katja Diaz-Granados, Lukas M. Eng, Markus R. Wagner, Martin Wolf, Mathias Schubert, Maximilian Obst, Mohit Pradhan, Niclas S. Mueller, Oliver Bierwagen, Piero Mazzolini, Raghunandan Balasubramanyam Iyer, Richarda Niemann, Ryan A. Kowalski, Saurabh Dixit, Susanne Kehr, Thomas G. Folland","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-07-28T14:48:07Z","title":"Spectral tuning of hyperbolic shear polaritons in monoclinic gallium oxide via isotopic substitution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.20896","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:5c0e57cd57953c78fe72b55a3c04b006fd2e3906ef97d3057364436724f12a1c","target":"record","created_at":"2026-07-05T11:44:27Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"2632ba2efdb81beecf3aee8717159a2443d8ecd4effce8ce213e51edd036220e","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-07-28T14:48:07Z","title_canon_sha256":"6e47a654c188313e2ae93a5991fa40267a2a02278210ac36e3c98c8eb39ccb21"},"schema_version":"1.0","source":{"id":"2507.20896","kind":"arxiv","version":1}},"canonical_sha256":"8e401c516c735c5a5a533a66ca0d4a0f6fee2229f6a9656257bdb30e6cae141b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8e401c516c735c5a5a533a66ca0d4a0f6fee2229f6a9656257bdb30e6cae141b","first_computed_at":"2026-07-05T11:44:27.714037Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:44:27.714037Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xgVGSc1xIYFMpqrpEt1uRhsH3KfdLTrSkdxNMPHfj9EfLDG0+SPhwgFu2yiY6VleN2AjYkiXmp6X/KWp1uUEDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:44:27.714627Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.20896","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5c0e57cd57953c78fe72b55a3c04b006fd2e3906ef97d3057364436724f12a1c","sha256:ac4f82f7c38c73934e2c2781940899b5530aaba39f745e3b7eaa0090ba3181e5"],"state_sha256":"c890a75c85633883c8d8ce383d990663da5bcb792b3754438fdb18e7fdb495a3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a/EnMc/Lmi2COM7E9j0iNJP8YnVyI0Hw66l4NCy9CBMJ0DvUmFLuP+FMbCk0aNElWouEH7aSsYrMJfkMIqwlAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T16:57:59.193878Z","bundle_sha256":"726e5fcf15e03abb99329cad599fbb10e01449fc3473c6a71deccbee84c6d4cd"}}