{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:D3E42V6XPM65YXAILZFN6ICYJW","short_pith_number":"pith:D3E42V6X","canonical_record":{"source":{"id":"1707.02626","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-07-09T19:15:40Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"49870c552d8f654b0b33cd64d0757d323ad448a42929bd896094c18be13ea1f2","abstract_canon_sha256":"29bb860d95dcf9619cf3ee9dc02e5c31c1d3dc7b5c50c90e0286077422651efa"},"schema_version":"1.0"},"canonical_sha256":"1ec9cd57d77b3ddc5c085e4adf20584d8aa0f9813e154c2cab880a64083f53b4","source":{"kind":"arxiv","id":"1707.02626","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.02626","created_at":"2026-05-18T00:29:55Z"},{"alias_kind":"arxiv_version","alias_value":"1707.02626v1","created_at":"2026-05-18T00:29:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.02626","created_at":"2026-05-18T00:29:55Z"},{"alias_kind":"pith_short_12","alias_value":"D3E42V6XPM65","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"D3E42V6XPM65YXAI","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"D3E42V6X","created_at":"2026-05-18T12:31:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:D3E42V6XPM65YXAILZFN6ICYJW","target":"record","payload":{"canonical_record":{"source":{"id":"1707.02626","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-07-09T19:15:40Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"49870c552d8f654b0b33cd64d0757d323ad448a42929bd896094c18be13ea1f2","abstract_canon_sha256":"29bb860d95dcf9619cf3ee9dc02e5c31c1d3dc7b5c50c90e0286077422651efa"},"schema_version":"1.0"},"canonical_sha256":"1ec9cd57d77b3ddc5c085e4adf20584d8aa0f9813e154c2cab880a64083f53b4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:29:55.125056Z","signature_b64":"/0QCBn/Qr8ZMFPupseyRI9bEL1hZlkEspHaMLjRNYLfxnFd+NouGKMbt6D8oEVaDd9vxSJtqk68YbXK4Bp7VCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1ec9cd57d77b3ddc5c085e4adf20584d8aa0f9813e154c2cab880a64083f53b4","last_reissued_at":"2026-05-18T00:29:55.124532Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:29:55.124532Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1707.02626","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":"2026-05-18T00:29:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G/EYqhluGhBN3ot1IOwk92pqgjmwgRX+MkyBY+iTeMxDV5kRRfzNpcD2WX3RDvs4nvj5syM36T7gURt6qZwjCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T09:00:27.462948Z"},"content_sha256":"e545d1a667dbe993f542866d6de19ca1c5c46c8f8c078125e64c5e79f1e917f7","schema_version":"1.0","event_id":"sha256:e545d1a667dbe993f542866d6de19ca1c5c46c8f8c078125e64c5e79f1e917f7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:D3E42V6XPM65YXAILZFN6ICYJW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Signatures of pairing in the magnetic excitation spectrum of strongly correlated ladders","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.str-el","authors_text":"A. Nocera, E. Dagotto, G. Alvarez, N. D. Patel","submitted_at":"2017-07-09T19:15:40Z","abstract_excerpt":"Magnetic interactions are widely believed to play a crucial role in the microscopic mechanism leading to high critical temperature superconductivity. It is therefore important to study the signatures of pairing in the magnetic excitation spectrum of simple models known to show unconventional superconducting tendencies. Using the Density Matrix Renormalization Group technique, we calculate the dynamical spin structure factor $S({\\bf k},\\omega)$ of a generalized $t-U-J$ Hubbard model away from half-filling in a two-leg ladder geometry. The addition of $J$ enhances pairing tendencies. We analyze "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.02626","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":"2026-05-18T00:29:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"906sBeOHv3VrEUiF21wxUdFqfMUtmiXxhEUBV665hq0Up90nW45pVzfrplH7noVWqvjybhcY5YFSD+zyVEsfBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T09:00:27.463282Z"},"content_sha256":"9793f742dc5ae35a25a87e2c9f437d2cb5f495df3e92f0cd57425f1298e73d39","schema_version":"1.0","event_id":"sha256:9793f742dc5ae35a25a87e2c9f437d2cb5f495df3e92f0cd57425f1298e73d39"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D3E42V6XPM65YXAILZFN6ICYJW/bundle.json","state_url":"https://pith.science/pith/D3E42V6XPM65YXAILZFN6ICYJW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D3E42V6XPM65YXAILZFN6ICYJW/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":"2026-07-02T09:00:27Z","links":{"resolver":"https://pith.science/pith/D3E42V6XPM65YXAILZFN6ICYJW","bundle":"https://pith.science/pith/D3E42V6XPM65YXAILZFN6ICYJW/bundle.json","state":"https://pith.science/pith/D3E42V6XPM65YXAILZFN6ICYJW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D3E42V6XPM65YXAILZFN6ICYJW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:D3E42V6XPM65YXAILZFN6ICYJW","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":"29bb860d95dcf9619cf3ee9dc02e5c31c1d3dc7b5c50c90e0286077422651efa","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-07-09T19:15:40Z","title_canon_sha256":"49870c552d8f654b0b33cd64d0757d323ad448a42929bd896094c18be13ea1f2"},"schema_version":"1.0","source":{"id":"1707.02626","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.02626","created_at":"2026-05-18T00:29:55Z"},{"alias_kind":"arxiv_version","alias_value":"1707.02626v1","created_at":"2026-05-18T00:29:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.02626","created_at":"2026-05-18T00:29:55Z"},{"alias_kind":"pith_short_12","alias_value":"D3E42V6XPM65","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"D3E42V6XPM65YXAI","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"D3E42V6X","created_at":"2026-05-18T12:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:9793f742dc5ae35a25a87e2c9f437d2cb5f495df3e92f0cd57425f1298e73d39","target":"graph","created_at":"2026-05-18T00:29:55Z","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":"Magnetic interactions are widely believed to play a crucial role in the microscopic mechanism leading to high critical temperature superconductivity. It is therefore important to study the signatures of pairing in the magnetic excitation spectrum of simple models known to show unconventional superconducting tendencies. Using the Density Matrix Renormalization Group technique, we calculate the dynamical spin structure factor $S({\\bf k},\\omega)$ of a generalized $t-U-J$ Hubbard model away from half-filling in a two-leg ladder geometry. The addition of $J$ enhances pairing tendencies. We analyze ","authors_text":"A. Nocera, E. Dagotto, G. Alvarez, N. D. Patel","cross_cats":["cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-07-09T19:15:40Z","title":"Signatures of pairing in the magnetic excitation spectrum of strongly correlated ladders"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.02626","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:e545d1a667dbe993f542866d6de19ca1c5c46c8f8c078125e64c5e79f1e917f7","target":"record","created_at":"2026-05-18T00:29:55Z","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":"29bb860d95dcf9619cf3ee9dc02e5c31c1d3dc7b5c50c90e0286077422651efa","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-07-09T19:15:40Z","title_canon_sha256":"49870c552d8f654b0b33cd64d0757d323ad448a42929bd896094c18be13ea1f2"},"schema_version":"1.0","source":{"id":"1707.02626","kind":"arxiv","version":1}},"canonical_sha256":"1ec9cd57d77b3ddc5c085e4adf20584d8aa0f9813e154c2cab880a64083f53b4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1ec9cd57d77b3ddc5c085e4adf20584d8aa0f9813e154c2cab880a64083f53b4","first_computed_at":"2026-05-18T00:29:55.124532Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:29:55.124532Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/0QCBn/Qr8ZMFPupseyRI9bEL1hZlkEspHaMLjRNYLfxnFd+NouGKMbt6D8oEVaDd9vxSJtqk68YbXK4Bp7VCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:29:55.125056Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.02626","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e545d1a667dbe993f542866d6de19ca1c5c46c8f8c078125e64c5e79f1e917f7","sha256:9793f742dc5ae35a25a87e2c9f437d2cb5f495df3e92f0cd57425f1298e73d39"],"state_sha256":"8e29d550d7c5e8be8fb16f843c3c2b04f57ae5bd4d47554175b69855b98d4579"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VGG3EHurX5QfRnqN5X012SyMrx6vVj5OJtmJSSHsk3N45NTkgeYXsQnK7rydjwIwLBM6UTwq0kgUW03hysIEAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-02T09:00:27.465126Z","bundle_sha256":"5a68f9dcbf4a431aaac8d8e9163cdea9fd3500da6ca35f3bbe5a9969d7307860"}}