{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:Y6HWOCFBFWB5BBV4CY5MV6KRBC","short_pith_number":"pith:Y6HWOCFB","canonical_record":{"source":{"id":"1105.0150","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-05-01T08:03:13Z","cross_cats_sorted":[],"title_canon_sha256":"c627736309c1d21d946aad167345777a58c923d45b60d3b7e98acd80c3c0b87a","abstract_canon_sha256":"718fe7a3eecbc5ec14fe9b61fbf7de4830a8a9d7634a98a07f6466770d6dabdb"},"schema_version":"1.0"},"canonical_sha256":"c78f6708a12d83d086bc163acaf951089c1a6a5ff53ea5fe7ae24d126344e2b7","source":{"kind":"arxiv","id":"1105.0150","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.0150","created_at":"2026-05-18T02:02:10Z"},{"alias_kind":"arxiv_version","alias_value":"1105.0150v1","created_at":"2026-05-18T02:02:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.0150","created_at":"2026-05-18T02:02:10Z"},{"alias_kind":"pith_short_12","alias_value":"Y6HWOCFBFWB5","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"Y6HWOCFBFWB5BBV4","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"Y6HWOCFB","created_at":"2026-05-18T12:26:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:Y6HWOCFBFWB5BBV4CY5MV6KRBC","target":"record","payload":{"canonical_record":{"source":{"id":"1105.0150","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-05-01T08:03:13Z","cross_cats_sorted":[],"title_canon_sha256":"c627736309c1d21d946aad167345777a58c923d45b60d3b7e98acd80c3c0b87a","abstract_canon_sha256":"718fe7a3eecbc5ec14fe9b61fbf7de4830a8a9d7634a98a07f6466770d6dabdb"},"schema_version":"1.0"},"canonical_sha256":"c78f6708a12d83d086bc163acaf951089c1a6a5ff53ea5fe7ae24d126344e2b7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:10.603481Z","signature_b64":"vLNAjQn7Hda19pbLWOogjkEmIc7IMWeEZDh3LQwOpzC4v0GpiQaS1ckJpN7xPb5KI3lrIG9gLlNAXX88/5a9Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c78f6708a12d83d086bc163acaf951089c1a6a5ff53ea5fe7ae24d126344e2b7","last_reissued_at":"2026-05-18T02:02:10.602750Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:10.602750Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1105.0150","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":"2026-05-18T02:02:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xn+bVy6BQsICgzM97C3KeV+ficUJMDSgWiLVp7HysBzRRqIEaqghIAcTRWjQbfvfebxLhi2gnc/Kvsfsk3wiAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T00:18:44.423498Z"},"content_sha256":"4cc6fe0c7b98155ec212d9d0d4d3a026ca1886c239f29e9cb40abd592e32dc3f","schema_version":"1.0","event_id":"sha256:4cc6fe0c7b98155ec212d9d0d4d3a026ca1886c239f29e9cb40abd592e32dc3f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:Y6HWOCFBFWB5BBV4CY5MV6KRBC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mott Transition in Quasi-One-Dimensional Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Eitan Eidelstein, S. Moukouri","submitted_at":"2011-05-01T08:03:13Z","abstract_excerpt":"We report the application of the density-matrix renormalization group method to a spatially anisotropic two-dimensional Hubbard model at half-filling. We find a deconfinement transition induced by the transverse hopping parameter $t_y$ from an insulator to a metal. Therefore, if $t_y$ is fixed in the metallic phase, increasing the interaction $U$ leads to a metal-to-insulator transition at a finite critical $U$. This is in contrast to the weak-coupling Hartree-Fock theory which predicts a nesting induced antiferromagnetic insulator for any $U>0$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.0150","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":"2026-05-18T02:02:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/MS5JMDo4JPl0q2CVUSwwBOFkjDGY4X3swPy2L2I2zAryDVLbkRt53K9W2L+o78GpIMJQqTV7xpxTDOwKQXkCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T00:18:44.424230Z"},"content_sha256":"cb5ee2230ddd78f7118a5ee47a3d2ebad78ef9f91f2dc6d79ba779f27833a13c","schema_version":"1.0","event_id":"sha256:cb5ee2230ddd78f7118a5ee47a3d2ebad78ef9f91f2dc6d79ba779f27833a13c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Y6HWOCFBFWB5BBV4CY5MV6KRBC/bundle.json","state_url":"https://pith.science/pith/Y6HWOCFBFWB5BBV4CY5MV6KRBC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Y6HWOCFBFWB5BBV4CY5MV6KRBC/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":"2026-06-12T00:18:44Z","links":{"resolver":"https://pith.science/pith/Y6HWOCFBFWB5BBV4CY5MV6KRBC","bundle":"https://pith.science/pith/Y6HWOCFBFWB5BBV4CY5MV6KRBC/bundle.json","state":"https://pith.science/pith/Y6HWOCFBFWB5BBV4CY5MV6KRBC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Y6HWOCFBFWB5BBV4CY5MV6KRBC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:Y6HWOCFBFWB5BBV4CY5MV6KRBC","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":"718fe7a3eecbc5ec14fe9b61fbf7de4830a8a9d7634a98a07f6466770d6dabdb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-05-01T08:03:13Z","title_canon_sha256":"c627736309c1d21d946aad167345777a58c923d45b60d3b7e98acd80c3c0b87a"},"schema_version":"1.0","source":{"id":"1105.0150","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.0150","created_at":"2026-05-18T02:02:10Z"},{"alias_kind":"arxiv_version","alias_value":"1105.0150v1","created_at":"2026-05-18T02:02:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.0150","created_at":"2026-05-18T02:02:10Z"},{"alias_kind":"pith_short_12","alias_value":"Y6HWOCFBFWB5","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"Y6HWOCFBFWB5BBV4","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"Y6HWOCFB","created_at":"2026-05-18T12:26:47Z"}],"graph_snapshots":[{"event_id":"sha256:cb5ee2230ddd78f7118a5ee47a3d2ebad78ef9f91f2dc6d79ba779f27833a13c","target":"graph","created_at":"2026-05-18T02:02:10Z","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 report the application of the density-matrix renormalization group method to a spatially anisotropic two-dimensional Hubbard model at half-filling. We find a deconfinement transition induced by the transverse hopping parameter $t_y$ from an insulator to a metal. Therefore, if $t_y$ is fixed in the metallic phase, increasing the interaction $U$ leads to a metal-to-insulator transition at a finite critical $U$. This is in contrast to the weak-coupling Hartree-Fock theory which predicts a nesting induced antiferromagnetic insulator for any $U>0$.","authors_text":"Eitan Eidelstein, S. Moukouri","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-05-01T08:03:13Z","title":"Mott Transition in Quasi-One-Dimensional Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.0150","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":"sha256:4cc6fe0c7b98155ec212d9d0d4d3a026ca1886c239f29e9cb40abd592e32dc3f","target":"record","created_at":"2026-05-18T02:02:10Z","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":"718fe7a3eecbc5ec14fe9b61fbf7de4830a8a9d7634a98a07f6466770d6dabdb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-05-01T08:03:13Z","title_canon_sha256":"c627736309c1d21d946aad167345777a58c923d45b60d3b7e98acd80c3c0b87a"},"schema_version":"1.0","source":{"id":"1105.0150","kind":"arxiv","version":1}},"canonical_sha256":"c78f6708a12d83d086bc163acaf951089c1a6a5ff53ea5fe7ae24d126344e2b7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c78f6708a12d83d086bc163acaf951089c1a6a5ff53ea5fe7ae24d126344e2b7","first_computed_at":"2026-05-18T02:02:10.602750Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:10.602750Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vLNAjQn7Hda19pbLWOogjkEmIc7IMWeEZDh3LQwOpzC4v0GpiQaS1ckJpN7xPb5KI3lrIG9gLlNAXX88/5a9Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:10.603481Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.0150","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4cc6fe0c7b98155ec212d9d0d4d3a026ca1886c239f29e9cb40abd592e32dc3f","sha256:cb5ee2230ddd78f7118a5ee47a3d2ebad78ef9f91f2dc6d79ba779f27833a13c"],"state_sha256":"9ca75d83f60ffde4039e6aacbf724c57843ac9280e66619f6aece5ffab0b9d95"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mz/3/6wvjCcrdqQ2Q8lagDK7L+yTwSltH6fDY4vMeq7N0/S4xs3nE9K8kT2Zp2uDZbU88q9E/VApQXgJsvwGAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-12T00:18:44.432853Z","bundle_sha256":"52851993b544ce4ce6892d5ecf8aa571c5744f35d65fb74aa5f9afa91541c00f"}}