{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:EEIXY2C6RIPSCQXPWYENSAI6PX","short_pith_number":"pith:EEIXY2C6","canonical_record":{"source":{"id":"2510.25124","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2025-10-29T03:01:12Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.str-el"],"title_canon_sha256":"ae14c7cb3ee817d9e34809d53a19a0ff2aec55cc9a1a239442b2fe9bc4837850","abstract_canon_sha256":"ff611376864f5ea5318f7893b6bd4bd22ad6992ec7e9b6d17b7673d5460630b7"},"schema_version":"1.0"},"canonical_sha256":"21117c685e8a1f2142efb608d9011e7df30d5bb093122b538e56250be684035f","source":{"kind":"arxiv","id":"2510.25124","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2510.25124","created_at":"2026-06-23T01:11:58Z"},{"alias_kind":"arxiv_version","alias_value":"2510.25124v2","created_at":"2026-06-23T01:11:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2510.25124","created_at":"2026-06-23T01:11:58Z"},{"alias_kind":"pith_short_12","alias_value":"EEIXY2C6RIPS","created_at":"2026-06-23T01:11:58Z"},{"alias_kind":"pith_short_16","alias_value":"EEIXY2C6RIPSCQXP","created_at":"2026-06-23T01:11:58Z"},{"alias_kind":"pith_short_8","alias_value":"EEIXY2C6","created_at":"2026-06-23T01:11:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:EEIXY2C6RIPSCQXPWYENSAI6PX","target":"record","payload":{"canonical_record":{"source":{"id":"2510.25124","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2025-10-29T03:01:12Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.str-el"],"title_canon_sha256":"ae14c7cb3ee817d9e34809d53a19a0ff2aec55cc9a1a239442b2fe9bc4837850","abstract_canon_sha256":"ff611376864f5ea5318f7893b6bd4bd22ad6992ec7e9b6d17b7673d5460630b7"},"schema_version":"1.0"},"canonical_sha256":"21117c685e8a1f2142efb608d9011e7df30d5bb093122b538e56250be684035f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T01:11:58.382523Z","signature_b64":"GCKtfhN7SgFChfphiHdRM/uthhsR86fY3zhdVzfTGQ1Syov4P0UddL/0KKKt9VQ8yuC+MtRdKfdKalaa1wVkAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"21117c685e8a1f2142efb608d9011e7df30d5bb093122b538e56250be684035f","last_reissued_at":"2026-06-23T01:11:58.381950Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T01:11:58.381950Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2510.25124","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-23T01:11:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IIMWNIJgpoiLFEn3dGWB/EeB9gMKCR2DJzuPxqRs2fvVkqG63nJaw0+i1XCTL7UDOI3mQhs4P0Ytr6czgpMAAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T19:13:46.888728Z"},"content_sha256":"684aa623985aaf2004036af1b52e92e79c3f614d14485c42a81893ef9249fd56","schema_version":"1.0","event_id":"sha256:684aa623985aaf2004036af1b52e92e79c3f614d14485c42a81893ef9249fd56"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:EEIXY2C6RIPSCQXPWYENSAI6PX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Contactless cavity sensing of superfluid stiffness in atomically thin 4Hb-TaS$_2$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"Collin Sanborn, David I. Santiago, Feng Wang, Ha-Leem Kim, Hyunseong Kim, Irfan Siddiqi, James G. Analytis, Kenji Watanabe, Luke Pritchard Cairns, Qiyu Wang, Ruishi Qi, Ryan Patrick Day, Su-Di Chen, Takashi Taniguchi, Trevor Chistolini, Zahra Pedramrazi","submitted_at":"2025-10-29T03:01:12Z","abstract_excerpt":"The exceptional tunability of two-dimensional van der Waals materials offers unique opportunities for exploring novel superconducting phases. However, in such systems, the measurement of superfluid phase stiffness, a fundamental property of a superconductor, is challenging because of the mesoscopic sample size. Here, we introduce a contact-free technique for probing the electrodynamic response, and thereby the phase stiffness, of atomically thin superconductors using on-chip superconducting microwave resonators. We demonstrate this technique on 4Hb-TaS$_2$, a van der Waals superconductor whose"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2510.25124","kind":"arxiv","version":2},"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/2510.25124/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":"2026-06-23T01:11:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l6uJ092YvPgZQNJXVAGIfE6INwecWja3Xb2kxOr0FysmWmX6OQl0el2kwtP8muMKyhcwi2gz9ikPl1tVqvGWAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T19:13:46.889110Z"},"content_sha256":"2d873040a1afe86babb239d4917014151c754d1703ae87ad461024f8e3615b1e","schema_version":"1.0","event_id":"sha256:2d873040a1afe86babb239d4917014151c754d1703ae87ad461024f8e3615b1e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EEIXY2C6RIPSCQXPWYENSAI6PX/bundle.json","state_url":"https://pith.science/pith/EEIXY2C6RIPSCQXPWYENSAI6PX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EEIXY2C6RIPSCQXPWYENSAI6PX/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":"2026-07-04T19:13:46Z","links":{"resolver":"https://pith.science/pith/EEIXY2C6RIPSCQXPWYENSAI6PX","bundle":"https://pith.science/pith/EEIXY2C6RIPSCQXPWYENSAI6PX/bundle.json","state":"https://pith.science/pith/EEIXY2C6RIPSCQXPWYENSAI6PX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EEIXY2C6RIPSCQXPWYENSAI6PX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:EEIXY2C6RIPSCQXPWYENSAI6PX","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":"ff611376864f5ea5318f7893b6bd4bd22ad6992ec7e9b6d17b7673d5460630b7","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2025-10-29T03:01:12Z","title_canon_sha256":"ae14c7cb3ee817d9e34809d53a19a0ff2aec55cc9a1a239442b2fe9bc4837850"},"schema_version":"1.0","source":{"id":"2510.25124","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2510.25124","created_at":"2026-06-23T01:11:58Z"},{"alias_kind":"arxiv_version","alias_value":"2510.25124v2","created_at":"2026-06-23T01:11:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2510.25124","created_at":"2026-06-23T01:11:58Z"},{"alias_kind":"pith_short_12","alias_value":"EEIXY2C6RIPS","created_at":"2026-06-23T01:11:58Z"},{"alias_kind":"pith_short_16","alias_value":"EEIXY2C6RIPSCQXP","created_at":"2026-06-23T01:11:58Z"},{"alias_kind":"pith_short_8","alias_value":"EEIXY2C6","created_at":"2026-06-23T01:11:58Z"}],"graph_snapshots":[{"event_id":"sha256:2d873040a1afe86babb239d4917014151c754d1703ae87ad461024f8e3615b1e","target":"graph","created_at":"2026-06-23T01:11:58Z","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/2510.25124/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The exceptional tunability of two-dimensional van der Waals materials offers unique opportunities for exploring novel superconducting phases. However, in such systems, the measurement of superfluid phase stiffness, a fundamental property of a superconductor, is challenging because of the mesoscopic sample size. Here, we introduce a contact-free technique for probing the electrodynamic response, and thereby the phase stiffness, of atomically thin superconductors using on-chip superconducting microwave resonators. We demonstrate this technique on 4Hb-TaS$_2$, a van der Waals superconductor whose","authors_text":"Collin Sanborn, David I. Santiago, Feng Wang, Ha-Leem Kim, Hyunseong Kim, Irfan Siddiqi, James G. Analytis, Kenji Watanabe, Luke Pritchard Cairns, Qiyu Wang, Ruishi Qi, Ryan Patrick Day, Su-Di Chen, Takashi Taniguchi, Trevor Chistolini, Zahra Pedramrazi","cross_cats":["cond-mat.mes-hall","cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2025-10-29T03:01:12Z","title":"Contactless cavity sensing of superfluid stiffness in atomically thin 4Hb-TaS$_2$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2510.25124","kind":"arxiv","version":2},"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":"sha256:684aa623985aaf2004036af1b52e92e79c3f614d14485c42a81893ef9249fd56","target":"record","created_at":"2026-06-23T01:11:58Z","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":"ff611376864f5ea5318f7893b6bd4bd22ad6992ec7e9b6d17b7673d5460630b7","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2025-10-29T03:01:12Z","title_canon_sha256":"ae14c7cb3ee817d9e34809d53a19a0ff2aec55cc9a1a239442b2fe9bc4837850"},"schema_version":"1.0","source":{"id":"2510.25124","kind":"arxiv","version":2}},"canonical_sha256":"21117c685e8a1f2142efb608d9011e7df30d5bb093122b538e56250be684035f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"21117c685e8a1f2142efb608d9011e7df30d5bb093122b538e56250be684035f","first_computed_at":"2026-06-23T01:11:58.381950Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T01:11:58.381950Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GCKtfhN7SgFChfphiHdRM/uthhsR86fY3zhdVzfTGQ1Syov4P0UddL/0KKKt9VQ8yuC+MtRdKfdKalaa1wVkAA==","signature_status":"signed_v1","signed_at":"2026-06-23T01:11:58.382523Z","signed_message":"canonical_sha256_bytes"},"source_id":"2510.25124","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:684aa623985aaf2004036af1b52e92e79c3f614d14485c42a81893ef9249fd56","sha256:2d873040a1afe86babb239d4917014151c754d1703ae87ad461024f8e3615b1e"],"state_sha256":"3438b01d8694c2057f060ab2f8ce93299d10175763b314d04ab07a226fd31edf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PuRGZF7V+R7zTZZRoCcPhVGR1GGZJssz5deqT3iUDT877NaFKDVn1lIIqaqFJ1jmZy0PpDsrXfHtpHptAzolCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-04T19:13:46.891152Z","bundle_sha256":"9fec2ef8b916593c65ee890d6bf92a63ef2389da7e10ded530a6039f44d0bcec"}}