{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:VEP24EHCC4GS7CQT5G4J3EBP5J","short_pith_number":"pith:VEP24EHC","canonical_record":{"source":{"id":"1407.5582","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-07-21T17:47:03Z","cross_cats_sorted":[],"title_canon_sha256":"0d75d2f0d3b673a14b69743f5b4b44878fa44979d52bd29164adb48cf139259b","abstract_canon_sha256":"768853817cfe3dc17a297e9706c6a4bd48dcf627c5c1748619d3ffe2716d5c72"},"schema_version":"1.0"},"canonical_sha256":"a91fae10e2170d2f8a13e9b89d902fea5e7e355d9e78782b4e0c4dbaec3ba78b","source":{"kind":"arxiv","id":"1407.5582","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.5582","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"arxiv_version","alias_value":"1407.5582v1","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.5582","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"pith_short_12","alias_value":"VEP24EHCC4GS","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_16","alias_value":"VEP24EHCC4GS7CQT","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_8","alias_value":"VEP24EHC","created_at":"2026-05-18T12:28:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:VEP24EHCC4GS7CQT5G4J3EBP5J","target":"record","payload":{"canonical_record":{"source":{"id":"1407.5582","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-07-21T17:47:03Z","cross_cats_sorted":[],"title_canon_sha256":"0d75d2f0d3b673a14b69743f5b4b44878fa44979d52bd29164adb48cf139259b","abstract_canon_sha256":"768853817cfe3dc17a297e9706c6a4bd48dcf627c5c1748619d3ffe2716d5c72"},"schema_version":"1.0"},"canonical_sha256":"a91fae10e2170d2f8a13e9b89d902fea5e7e355d9e78782b4e0c4dbaec3ba78b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:47:13.689088Z","signature_b64":"gGhnRQeJhkmrMw3irZbmqR6HtvF9IYT8mUrDTxnRAeAU0AyQgfd8cTOiq/rfVuHP319bW2OKN7fZWjVKTPv8DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a91fae10e2170d2f8a13e9b89d902fea5e7e355d9e78782b4e0c4dbaec3ba78b","last_reissued_at":"2026-05-18T02:47:13.688534Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:47:13.688534Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.5582","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":"2026-05-18T02:47:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/ra0WGq68PZHg48JbWp8o90k/XjWjsPEWy6fYOu8xe8XaKFEqbR7ZrPT8ka37UrlHU6CKcnV3iIBtLq2UI1aCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T21:57:38.304502Z"},"content_sha256":"3ada72cfa71eb542843e7a418b85d0f11f3cd5e290e48a4c529cd3643d8edbda","schema_version":"1.0","event_id":"sha256:3ada72cfa71eb542843e7a418b85d0f11f3cd5e290e48a4c529cd3643d8edbda"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:VEP24EHCC4GS7CQT5G4J3EBP5J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electronic Instabilities of the AA-Honeycomb Bilayer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Carsten Honerkamp, David S\\'anchez de la Pe\\~na, Michael M. Scherer","submitted_at":"2014-07-21T17:47:03Z","abstract_excerpt":"We use a functional renormalization group approach to study the instabilities due to electron-electron interactions in a bilayer honeycomb lattice model with AA stacking, as it might be relevant for layered graphene with this structure. Starting with a tight- binding description for the four $\\pi$-bands, we integrate out the modes of the dispersion by successively lowering an infrared cutoff and determine the leading tendencies in the effective interactions. The antiferromagnetic spin-density wave is an expected instability for dominant local repulsion among the electrons, but for nonlocal int"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.5582","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":"2026-05-18T02:47:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C8p4C7OqZmGRV3hRXReHenmJQvlEavMSLyXIW2+H6lnStueiZPySX4xPQLO4nb1kahOtMsKsXvxsnoq3yzLkBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T21:57:38.305123Z"},"content_sha256":"638017db2b604e3d90d3bf8ff3357da8adf7e7766b788465090e468299747fc8","schema_version":"1.0","event_id":"sha256:638017db2b604e3d90d3bf8ff3357da8adf7e7766b788465090e468299747fc8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VEP24EHCC4GS7CQT5G4J3EBP5J/bundle.json","state_url":"https://pith.science/pith/VEP24EHCC4GS7CQT5G4J3EBP5J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VEP24EHCC4GS7CQT5G4J3EBP5J/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":"2026-05-31T21:57:38Z","links":{"resolver":"https://pith.science/pith/VEP24EHCC4GS7CQT5G4J3EBP5J","bundle":"https://pith.science/pith/VEP24EHCC4GS7CQT5G4J3EBP5J/bundle.json","state":"https://pith.science/pith/VEP24EHCC4GS7CQT5G4J3EBP5J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VEP24EHCC4GS7CQT5G4J3EBP5J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:VEP24EHCC4GS7CQT5G4J3EBP5J","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":"768853817cfe3dc17a297e9706c6a4bd48dcf627c5c1748619d3ffe2716d5c72","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-07-21T17:47:03Z","title_canon_sha256":"0d75d2f0d3b673a14b69743f5b4b44878fa44979d52bd29164adb48cf139259b"},"schema_version":"1.0","source":{"id":"1407.5582","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.5582","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"arxiv_version","alias_value":"1407.5582v1","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.5582","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"pith_short_12","alias_value":"VEP24EHCC4GS","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_16","alias_value":"VEP24EHCC4GS7CQT","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_8","alias_value":"VEP24EHC","created_at":"2026-05-18T12:28:52Z"}],"graph_snapshots":[{"event_id":"sha256:638017db2b604e3d90d3bf8ff3357da8adf7e7766b788465090e468299747fc8","target":"graph","created_at":"2026-05-18T02:47:13Z","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 approach to study the instabilities due to electron-electron interactions in a bilayer honeycomb lattice model with AA stacking, as it might be relevant for layered graphene with this structure. Starting with a tight- binding description for the four $\\pi$-bands, we integrate out the modes of the dispersion by successively lowering an infrared cutoff and determine the leading tendencies in the effective interactions. The antiferromagnetic spin-density wave is an expected instability for dominant local repulsion among the electrons, but for nonlocal int","authors_text":"Carsten Honerkamp, David S\\'anchez de la Pe\\~na, Michael M. Scherer","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-07-21T17:47:03Z","title":"Electronic Instabilities of the AA-Honeycomb Bilayer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.5582","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":"sha256:3ada72cfa71eb542843e7a418b85d0f11f3cd5e290e48a4c529cd3643d8edbda","target":"record","created_at":"2026-05-18T02:47:13Z","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":"768853817cfe3dc17a297e9706c6a4bd48dcf627c5c1748619d3ffe2716d5c72","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-07-21T17:47:03Z","title_canon_sha256":"0d75d2f0d3b673a14b69743f5b4b44878fa44979d52bd29164adb48cf139259b"},"schema_version":"1.0","source":{"id":"1407.5582","kind":"arxiv","version":1}},"canonical_sha256":"a91fae10e2170d2f8a13e9b89d902fea5e7e355d9e78782b4e0c4dbaec3ba78b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a91fae10e2170d2f8a13e9b89d902fea5e7e355d9e78782b4e0c4dbaec3ba78b","first_computed_at":"2026-05-18T02:47:13.688534Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:47:13.688534Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gGhnRQeJhkmrMw3irZbmqR6HtvF9IYT8mUrDTxnRAeAU0AyQgfd8cTOiq/rfVuHP319bW2OKN7fZWjVKTPv8DA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:47:13.689088Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.5582","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3ada72cfa71eb542843e7a418b85d0f11f3cd5e290e48a4c529cd3643d8edbda","sha256:638017db2b604e3d90d3bf8ff3357da8adf7e7766b788465090e468299747fc8"],"state_sha256":"b4de0e91b67e783845f6ebb13b783bf589de8ae803f7e98f80bd902d0948af26"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dcKbd2C6G28L6pXKJt7E2SDCl8Gf1LkrjafmeQooIX59f538vgWUU0LVbJd+Qieg5jQRJDdYIw+aYtZlWG8kCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T21:57:38.308126Z","bundle_sha256":"729344bea0d5d918efbd5f0f96351f3082df065065b587c5ce2b558c316b73b5"}}