{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:EGWIKN7GJTIPJTFXWGWDHYT4MN","short_pith_number":"pith:EGWIKN7G","canonical_record":{"source":{"id":"cond-mat/0304405","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2003-04-17T15:04:51Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"e4184f091faea0ecc575e02c7eda7087ef53e3b2397850cf35bd42fddc45502c","abstract_canon_sha256":"7cf17e6d0cf314b2da6e7c85cd5d34146d26d2a6eedee5a07523f9097bd207f3"},"schema_version":"1.0"},"canonical_sha256":"21ac8537e64cd0f4ccb7b1ac33e27c637a0b99b4268940f7d4cf8edccc6f50be","source":{"kind":"arxiv","id":"cond-mat/0304405","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0304405","created_at":"2026-07-04T16:38:39Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0304405v2","created_at":"2026-07-04T16:38:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0304405","created_at":"2026-07-04T16:38:39Z"},{"alias_kind":"pith_short_12","alias_value":"EGWIKN7GJTIP","created_at":"2026-07-04T16:38:39Z"},{"alias_kind":"pith_short_16","alias_value":"EGWIKN7GJTIPJTFX","created_at":"2026-07-04T16:38:39Z"},{"alias_kind":"pith_short_8","alias_value":"EGWIKN7G","created_at":"2026-07-04T16:38:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:EGWIKN7GJTIPJTFXWGWDHYT4MN","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0304405","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2003-04-17T15:04:51Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"e4184f091faea0ecc575e02c7eda7087ef53e3b2397850cf35bd42fddc45502c","abstract_canon_sha256":"7cf17e6d0cf314b2da6e7c85cd5d34146d26d2a6eedee5a07523f9097bd207f3"},"schema_version":"1.0"},"canonical_sha256":"21ac8537e64cd0f4ccb7b1ac33e27c637a0b99b4268940f7d4cf8edccc6f50be","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:38:39.657582Z","signature_b64":"ePio2rBm1Wjvwvf1SwxNvG2WCKcJoPc9hSpt87tBMt3jG1ZqdyiM34wjo5XphMiF/QSsHEzauUw38UctSW1gBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"21ac8537e64cd0f4ccb7b1ac33e27c637a0b99b4268940f7d4cf8edccc6f50be","last_reissued_at":"2026-07-04T16:38:39.657193Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:38:39.657193Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0304405","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":"2026-07-04T16:38:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Bdxm9NwvfKJnc6bdW212PHzJtxMcK19RaaDDjX421EAPzKoyR4WkdXKGHighn0oS6aUc4HvUdsPDvuoql5s3AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T04:58:11.552447Z"},"content_sha256":"d081244c4482b5a9381d79e5b6665354ac9eedbc74bfd09c0a7728490368fb57","schema_version":"1.0","event_id":"sha256:d081244c4482b5a9381d79e5b6665354ac9eedbc74bfd09c0a7728490368fb57"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:EGWIKN7GJTIPJTFXWGWDHYT4MN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Superconducting states in frustrating t-J model: A model connecting high-$T_c$ cuprates, organic conductors and Na$_x$CoO$_2$","license":"","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"Masao Ogata","submitted_at":"2003-04-17T15:04:51Z","abstract_excerpt":"The two-dimensional t-J model on a frustrating lattice is studied using mean-field variational theories with Gutzwiller approximation. We find that a superconducting state with broken time-reversal symmetry (d+id state) is realized in the parameter region close to the triangular lattice. The frustration enlarges the region of superconductivity when $t<0$ for the hole-doped case, which is equivalent to $t>0$ for electron doping. We also discuss the SU(2) degeneracy at half-filling. The d+id state probably corresponds to the spin gap state at half-filling."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0304405","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/cond-mat/0304405/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":"2026-07-04T16:38:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cf3OTR8ZSvtwIjbgHzB+3cROd4Ghb2/2RgLGpiSCbUJaUMwJTq4iujI71Z3/Z69u/tgwni5Ab7NhOakhr91BBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T04:58:11.553269Z"},"content_sha256":"04775610971f4e37715ce20a169ea4b2c443d3f2d4bc657c90b5016258cccad7","schema_version":"1.0","event_id":"sha256:04775610971f4e37715ce20a169ea4b2c443d3f2d4bc657c90b5016258cccad7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EGWIKN7GJTIPJTFXWGWDHYT4MN/bundle.json","state_url":"https://pith.science/pith/EGWIKN7GJTIPJTFXWGWDHYT4MN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EGWIKN7GJTIPJTFXWGWDHYT4MN/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":"2026-08-09T04:58:11Z","links":{"resolver":"https://pith.science/pith/EGWIKN7GJTIPJTFXWGWDHYT4MN","bundle":"https://pith.science/pith/EGWIKN7GJTIPJTFXWGWDHYT4MN/bundle.json","state":"https://pith.science/pith/EGWIKN7GJTIPJTFXWGWDHYT4MN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EGWIKN7GJTIPJTFXWGWDHYT4MN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:EGWIKN7GJTIPJTFXWGWDHYT4MN","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":"7cf17e6d0cf314b2da6e7c85cd5d34146d26d2a6eedee5a07523f9097bd207f3","cross_cats_sorted":["cond-mat.str-el"],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2003-04-17T15:04:51Z","title_canon_sha256":"e4184f091faea0ecc575e02c7eda7087ef53e3b2397850cf35bd42fddc45502c"},"schema_version":"1.0","source":{"id":"cond-mat/0304405","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0304405","created_at":"2026-07-04T16:38:39Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0304405v2","created_at":"2026-07-04T16:38:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0304405","created_at":"2026-07-04T16:38:39Z"},{"alias_kind":"pith_short_12","alias_value":"EGWIKN7GJTIP","created_at":"2026-07-04T16:38:39Z"},{"alias_kind":"pith_short_16","alias_value":"EGWIKN7GJTIPJTFX","created_at":"2026-07-04T16:38:39Z"},{"alias_kind":"pith_short_8","alias_value":"EGWIKN7G","created_at":"2026-07-04T16:38:39Z"}],"graph_snapshots":[{"event_id":"sha256:04775610971f4e37715ce20a169ea4b2c443d3f2d4bc657c90b5016258cccad7","target":"graph","created_at":"2026-07-04T16:38:39Z","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/cond-mat/0304405/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The two-dimensional t-J model on a frustrating lattice is studied using mean-field variational theories with Gutzwiller approximation. We find that a superconducting state with broken time-reversal symmetry (d+id state) is realized in the parameter region close to the triangular lattice. The frustration enlarges the region of superconductivity when $t<0$ for the hole-doped case, which is equivalent to $t>0$ for electron doping. We also discuss the SU(2) degeneracy at half-filling. The d+id state probably corresponds to the spin gap state at half-filling.","authors_text":"Masao Ogata","cross_cats":["cond-mat.str-el"],"headline":"","license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2003-04-17T15:04:51Z","title":"Superconducting states in frustrating t-J model: A model connecting high-$T_c$ cuprates, organic conductors and Na$_x$CoO$_2$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0304405","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:d081244c4482b5a9381d79e5b6665354ac9eedbc74bfd09c0a7728490368fb57","target":"record","created_at":"2026-07-04T16:38:39Z","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":"7cf17e6d0cf314b2da6e7c85cd5d34146d26d2a6eedee5a07523f9097bd207f3","cross_cats_sorted":["cond-mat.str-el"],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2003-04-17T15:04:51Z","title_canon_sha256":"e4184f091faea0ecc575e02c7eda7087ef53e3b2397850cf35bd42fddc45502c"},"schema_version":"1.0","source":{"id":"cond-mat/0304405","kind":"arxiv","version":2}},"canonical_sha256":"21ac8537e64cd0f4ccb7b1ac33e27c637a0b99b4268940f7d4cf8edccc6f50be","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"21ac8537e64cd0f4ccb7b1ac33e27c637a0b99b4268940f7d4cf8edccc6f50be","first_computed_at":"2026-07-04T16:38:39.657193Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:38:39.657193Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ePio2rBm1Wjvwvf1SwxNvG2WCKcJoPc9hSpt87tBMt3jG1ZqdyiM34wjo5XphMiF/QSsHEzauUw38UctSW1gBQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:38:39.657582Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0304405","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d081244c4482b5a9381d79e5b6665354ac9eedbc74bfd09c0a7728490368fb57","sha256:04775610971f4e37715ce20a169ea4b2c443d3f2d4bc657c90b5016258cccad7"],"state_sha256":"19df050cf1e8a95cccb78397809c36e80bb7f6c897c6988e7992b22fae652aaf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2qvItmAMz2keR7o8QtdUoOIwr6KXWM2hCqX//NsGcoujO+OlMicXiXC6ZTwp+Le70xu2SY1BPfQkIA0sqU8vBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T04:58:11.560676Z","bundle_sha256":"3ebd28b34300d28982a369c99f1d3cb303bf08ccdd2f58f38639a8b4747b7ce0"}}