{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2006:GPNKBFSLWFVRJHT6CBV2YOHE42","short_pith_number":"pith:GPNKBFSL","schema_version":"1.0","canonical_sha256":"33daa0964bb16b149e7e106bac38e4e6b352bec687283cabd1c097c6cb8ecb11","source":{"kind":"arxiv","id":"hep-th/0605274","version":2},"attestation_state":"computed","paper":{"title":"Metric and coupling reversal in string theory","license":"","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Jussi Kalkkinen, M.J. Duff","submitted_at":"2006-05-28T16:40:14Z","abstract_excerpt":"Invariance under reversing the sign of the metric G_{MN}(x) and/or the sign of the string coupling field H(x), where <H(x)> = g_s, leads to four possible Universes denoted 1,I,J,K according as (G,H) goes to (G,H), (-G,H), (-G,-H), (G,-H), respectively. Universe 1 is described by conventional string/M theory and contains all M, D, F and NS branes. Universe I contains only D(-1), D3 and D7. Universe J contains only D1, D5, D9 and Type I. Universe K contains only F1 and NS5 of IIB and Heterotic SO(32)."},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"hep-th/0605274","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"2006-05-28T16:40:14Z","cross_cats_sorted":[],"title_canon_sha256":"25ec6ff9c79851a39496a4b18c91d5f9ac67de4570f0ce504d01bafc4d21fa14","abstract_canon_sha256":"7aa74b1cecc9b93f6defca16d79d5f1d8352af02e18e685ae0796ad75b97ec1b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:22:39.338428Z","signature_b64":"1iECDRLbNm0kvF9p5M037FIF9ckevyM6uA7+gLflmda0844/Fm3R8bzRNNWgC4kNe/6d0beM5Ygx0DaHiG0ZDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"33daa0964bb16b149e7e106bac38e4e6b352bec687283cabd1c097c6cb8ecb11","last_reissued_at":"2026-07-04T15:22:39.338006Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:22:39.338006Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Metric and coupling reversal in string theory","license":"","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Jussi Kalkkinen, M.J. Duff","submitted_at":"2006-05-28T16:40:14Z","abstract_excerpt":"Invariance under reversing the sign of the metric G_{MN}(x) and/or the sign of the string coupling field H(x), where <H(x)> = g_s, leads to four possible Universes denoted 1,I,J,K according as (G,H) goes to (G,H), (-G,H), (-G,-H), (G,-H), respectively. Universe 1 is described by conventional string/M theory and contains all M, D, F and NS branes. Universe I contains only D(-1), D3 and D7. Universe J contains only D1, D5, D9 and Type I. Universe K contains only F1 and NS5 of IIB and Heterotic SO(32)."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/0605274","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/hep-th/0605274/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"hep-th/0605274","created_at":"2026-07-04T15:22:39.338072+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-th/0605274v2","created_at":"2026-07-04T15:22:39.338072+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/0605274","created_at":"2026-07-04T15:22:39.338072+00:00"},{"alias_kind":"pith_short_12","alias_value":"GPNKBFSLWFVR","created_at":"2026-07-04T15:22:39.338072+00:00"},{"alias_kind":"pith_short_16","alias_value":"GPNKBFSLWFVRJHT6","created_at":"2026-07-04T15:22:39.338072+00:00"},{"alias_kind":"pith_short_8","alias_value":"GPNKBFSL","created_at":"2026-07-04T15:22:39.338072+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2603.29918","citing_title":"Resolution of the cosmological constant problem by unimodular gravity and signature reversal symmetry","ref_index":18,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/GPNKBFSLWFVRJHT6CBV2YOHE42","json":"https://pith.science/pith/GPNKBFSLWFVRJHT6CBV2YOHE42.json","graph_json":"https://pith.science/api/pith-number/GPNKBFSLWFVRJHT6CBV2YOHE42/graph.json","events_json":"https://pith.science/api/pith-number/GPNKBFSLWFVRJHT6CBV2YOHE42/events.json","paper":"https://pith.science/paper/GPNKBFSL"},"agent_actions":{"view_html":"https://pith.science/pith/GPNKBFSLWFVRJHT6CBV2YOHE42","download_json":"https://pith.science/pith/GPNKBFSLWFVRJHT6CBV2YOHE42.json","view_paper":"https://pith.science/paper/GPNKBFSL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-th/0605274&json=true","fetch_graph":"https://pith.science/api/pith-number/GPNKBFSLWFVRJHT6CBV2YOHE42/graph.json","fetch_events":"https://pith.science/api/pith-number/GPNKBFSLWFVRJHT6CBV2YOHE42/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GPNKBFSLWFVRJHT6CBV2YOHE42/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GPNKBFSLWFVRJHT6CBV2YOHE42/action/storage_attestation","attest_author":"https://pith.science/pith/GPNKBFSLWFVRJHT6CBV2YOHE42/action/author_attestation","sign_citation":"https://pith.science/pith/GPNKBFSLWFVRJHT6CBV2YOHE42/action/citation_signature","submit_replication":"https://pith.science/pith/GPNKBFSLWFVRJHT6CBV2YOHE42/action/replication_record"}},"created_at":"2026-07-04T15:22:39.338072+00:00","updated_at":"2026-07-04T15:22:39.338072+00:00"}