{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:LVPKLAT2RUQAC7XOY2IHFA44K6","short_pith_number":"pith:LVPKLAT2","canonical_record":{"source":{"id":"1809.02962","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-09T12:55:34Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"12f0b4338aa6aeb292073c94b07288605675aa58996fc1db923d46055b354eb2","abstract_canon_sha256":"eb2101688aae40e003c77fc124359769c3fb26a3402cf0116fd8ca997cdf6083"},"schema_version":"1.0"},"canonical_sha256":"5d5ea5827a8d20017eeec69072839c57aab4df14dd841aea5b7d7deec2adf1b5","source":{"kind":"arxiv","id":"1809.02962","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.02962","created_at":"2026-05-17T23:57:08Z"},{"alias_kind":"arxiv_version","alias_value":"1809.02962v1","created_at":"2026-05-17T23:57:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.02962","created_at":"2026-05-17T23:57:08Z"},{"alias_kind":"pith_short_12","alias_value":"LVPKLAT2RUQA","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"LVPKLAT2RUQAC7XO","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"LVPKLAT2","created_at":"2026-05-18T12:32:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:LVPKLAT2RUQAC7XOY2IHFA44K6","target":"record","payload":{"canonical_record":{"source":{"id":"1809.02962","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-09T12:55:34Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"12f0b4338aa6aeb292073c94b07288605675aa58996fc1db923d46055b354eb2","abstract_canon_sha256":"eb2101688aae40e003c77fc124359769c3fb26a3402cf0116fd8ca997cdf6083"},"schema_version":"1.0"},"canonical_sha256":"5d5ea5827a8d20017eeec69072839c57aab4df14dd841aea5b7d7deec2adf1b5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:57:08.499729Z","signature_b64":"R4MfOoTYkppr2jEzppMZ6x9yHOgcMGAX5R/zgr2t+M7fLjmDGcm4cbn1twMB2rYedNuuXrNpyRgRnWHaJtapAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5d5ea5827a8d20017eeec69072839c57aab4df14dd841aea5b7d7deec2adf1b5","last_reissued_at":"2026-05-17T23:57:08.499397Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:57:08.499397Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.02962","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":"2026-05-17T23:57:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h1Vi1/ZrkKZni/sn+T85l5/t4H8V40N/6q3E2LuWCUHy/DVel1G9UOPF/30DET81O0GeXYbYwMNqpK4nE/9UDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T23:42:54.446804Z"},"content_sha256":"63a500990bebe44a2e3b9361af0e44817d2135d6b83091095fb6887bb33fc55d","schema_version":"1.0","event_id":"sha256:63a500990bebe44a2e3b9361af0e44817d2135d6b83091095fb6887bb33fc55d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:LVPKLAT2RUQAC7XOY2IHFA44K6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Excitonic instability and unconventional pairing in the nodal-line materials ZrSiS and ZrSiSe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"A. I. Lichtenstein, A. N. Rudenko, C. Honerkamp, E. A. Stepanov, M. I. Katsnelson, M. M. Scherer","submitted_at":"2018-09-09T12:55:34Z","abstract_excerpt":"We use a functional renormalization group (fRG) approach to investigate potential interaction-induced instabilities in a two-dimensional model for the Dirac nodal-line materials ZrSiS and ZrSiSe employing model parameters derived from {\\it ab initio} calculations. Our results confirm that the excitonic instability recently found in random-phase approximation for ZrSiS is indeed the leading instability. In the simplest modeling, spin- and charge-excitonic states are degenerate. Beyond this, we show that the fRG analysis produces an energy scale for the onset of the instability in good agreement"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.02962","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":""},"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":"2026-05-17T23:57:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6l2QOBYre1tX4xocz8qPkx7nzk/VvbUjJvTC6s8/2osoH7KJ6lh8SNX1bHgGDewLCvWHSk7y8WwOrflU6MgaBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T23:42:54.447460Z"},"content_sha256":"53f232bd5d090889439ffa28b01474ee5fe524abbe5b6f0436f0b48c02e3f182","schema_version":"1.0","event_id":"sha256:53f232bd5d090889439ffa28b01474ee5fe524abbe5b6f0436f0b48c02e3f182"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LVPKLAT2RUQAC7XOY2IHFA44K6/bundle.json","state_url":"https://pith.science/pith/LVPKLAT2RUQAC7XOY2IHFA44K6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LVPKLAT2RUQAC7XOY2IHFA44K6/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":"2026-05-27T23:42:54Z","links":{"resolver":"https://pith.science/pith/LVPKLAT2RUQAC7XOY2IHFA44K6","bundle":"https://pith.science/pith/LVPKLAT2RUQAC7XOY2IHFA44K6/bundle.json","state":"https://pith.science/pith/LVPKLAT2RUQAC7XOY2IHFA44K6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LVPKLAT2RUQAC7XOY2IHFA44K6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:LVPKLAT2RUQAC7XOY2IHFA44K6","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":"eb2101688aae40e003c77fc124359769c3fb26a3402cf0116fd8ca997cdf6083","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-09T12:55:34Z","title_canon_sha256":"12f0b4338aa6aeb292073c94b07288605675aa58996fc1db923d46055b354eb2"},"schema_version":"1.0","source":{"id":"1809.02962","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.02962","created_at":"2026-05-17T23:57:08Z"},{"alias_kind":"arxiv_version","alias_value":"1809.02962v1","created_at":"2026-05-17T23:57:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.02962","created_at":"2026-05-17T23:57:08Z"},{"alias_kind":"pith_short_12","alias_value":"LVPKLAT2RUQA","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"LVPKLAT2RUQAC7XO","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"LVPKLAT2","created_at":"2026-05-18T12:32:37Z"}],"graph_snapshots":[{"event_id":"sha256:53f232bd5d090889439ffa28b01474ee5fe524abbe5b6f0436f0b48c02e3f182","target":"graph","created_at":"2026-05-17T23:57:08Z","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"},"paper":{"abstract_excerpt":"We use a functional renormalization group (fRG) approach to investigate potential interaction-induced instabilities in a two-dimensional model for the Dirac nodal-line materials ZrSiS and ZrSiSe employing model parameters derived from {\\it ab initio} calculations. Our results confirm that the excitonic instability recently found in random-phase approximation for ZrSiS is indeed the leading instability. In the simplest modeling, spin- and charge-excitonic states are degenerate. Beyond this, we show that the fRG analysis produces an energy scale for the onset of the instability in good agreement","authors_text":"A. I. Lichtenstein, A. N. Rudenko, C. Honerkamp, E. A. Stepanov, M. I. Katsnelson, M. M. Scherer","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-09T12:55:34Z","title":"Excitonic instability and unconventional pairing in the nodal-line materials ZrSiS and ZrSiSe"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.02962","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":"sha256:63a500990bebe44a2e3b9361af0e44817d2135d6b83091095fb6887bb33fc55d","target":"record","created_at":"2026-05-17T23:57:08Z","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":"eb2101688aae40e003c77fc124359769c3fb26a3402cf0116fd8ca997cdf6083","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-09T12:55:34Z","title_canon_sha256":"12f0b4338aa6aeb292073c94b07288605675aa58996fc1db923d46055b354eb2"},"schema_version":"1.0","source":{"id":"1809.02962","kind":"arxiv","version":1}},"canonical_sha256":"5d5ea5827a8d20017eeec69072839c57aab4df14dd841aea5b7d7deec2adf1b5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5d5ea5827a8d20017eeec69072839c57aab4df14dd841aea5b7d7deec2adf1b5","first_computed_at":"2026-05-17T23:57:08.499397Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:57:08.499397Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"R4MfOoTYkppr2jEzppMZ6x9yHOgcMGAX5R/zgr2t+M7fLjmDGcm4cbn1twMB2rYedNuuXrNpyRgRnWHaJtapAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:57:08.499729Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.02962","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:63a500990bebe44a2e3b9361af0e44817d2135d6b83091095fb6887bb33fc55d","sha256:53f232bd5d090889439ffa28b01474ee5fe524abbe5b6f0436f0b48c02e3f182"],"state_sha256":"ef6b0255da8b642f3b0ad8f90d4ea6403ad5d285e0d020d10c71e8c6d96ccad3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B+7lkDcF+IA2vkslcBGAwrr1w6ULzP1QuX6zc1b8RoBMK+xVjUzktcu+G+qp1ira6tHfdoH7omSohLoqMcOiCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T23:42:54.450575Z","bundle_sha256":"45f14f53790e7add8bc604eba2b9fb6d4ddf6dfdf011d29b2bd47790ca7f3769"}}