{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:XAQ46MXMDWDFIE34Z3OVC3LYXC","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":"7f9ce4d484eda44ddba05a79bae6573595422e5631c4a9e15047d4850c1e06a0","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-05-10T10:44:45Z","title_canon_sha256":"89afa2fa1d4395e6ce4ae0e0775cacc23a8696475a4c6d10ba5a6f915cad0e62"},"schema_version":"1.0","source":{"id":"2105.04255","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.04255","created_at":"2026-07-05T03:20:20Z"},{"alias_kind":"arxiv_version","alias_value":"2105.04255v2","created_at":"2026-07-05T03:20:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.04255","created_at":"2026-07-05T03:20:20Z"},{"alias_kind":"pith_short_12","alias_value":"XAQ46MXMDWDF","created_at":"2026-07-05T03:20:20Z"},{"alias_kind":"pith_short_16","alias_value":"XAQ46MXMDWDFIE34","created_at":"2026-07-05T03:20:20Z"},{"alias_kind":"pith_short_8","alias_value":"XAQ46MXM","created_at":"2026-07-05T03:20:20Z"}],"graph_snapshots":[{"event_id":"sha256:6244b3e1ede7f138a247a3d98d97b70d79ef2227e90e11bc1bd6f04ddc1df420","target":"graph","created_at":"2026-07-05T03:20:20Z","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/2105.04255/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We explore a simple extension to the Standard Model containing two gauge singlets: a Dirac fermion and a real pseudoscalar. In some regions of the parameter space both singlets are stable without the necessity of additional symmetries, then becoming a possible two-component dark matter model. We study the relic abundance production via freeze-out, with the latter determined by annihilations, conversions and semi-annihilations. Experimental constraints from invisible Higgs decay, dark matter relic abundance and direct/indirect detection are studied. We found three viable regions of the paramete","authors_text":"Alfonso R. Zerwekh, Basti\\'an D\\'iaz S\\'aez, Patricio Escalona, Sebasti\\'an Norero","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-05-10T10:44:45Z","title":"Fermion Singlet Dark Matter in a Pseudoscalar Dark Matter Portal"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.04255","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":"sha256:3af09f2ecdac13fe56e0ed372cdeba94c998956f14bcdf412bae19b22f5e5814","target":"record","created_at":"2026-07-05T03:20:20Z","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":"7f9ce4d484eda44ddba05a79bae6573595422e5631c4a9e15047d4850c1e06a0","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-05-10T10:44:45Z","title_canon_sha256":"89afa2fa1d4395e6ce4ae0e0775cacc23a8696475a4c6d10ba5a6f915cad0e62"},"schema_version":"1.0","source":{"id":"2105.04255","kind":"arxiv","version":2}},"canonical_sha256":"b821cf32ec1d8654137ccedd516d78b89b255505f6f3916c97f97c0cee099a70","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b821cf32ec1d8654137ccedd516d78b89b255505f6f3916c97f97c0cee099a70","first_computed_at":"2026-07-05T03:20:20.984726Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:20:20.984726Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mKMlRMHXXXoPt3p547CEhfX2kxttpu5Oln4U2274BqFfo23nd8Nn3GdrvsKzoMvJiMtYLZGl+1MLnUGZhU/cAA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:20:20.985126Z","signed_message":"canonical_sha256_bytes"},"source_id":"2105.04255","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3af09f2ecdac13fe56e0ed372cdeba94c998956f14bcdf412bae19b22f5e5814","sha256:6244b3e1ede7f138a247a3d98d97b70d79ef2227e90e11bc1bd6f04ddc1df420"],"state_sha256":"717c2309264b872eecc84697371fe3f06889e1b23a36402318243e0ce42a506c"}