{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:QXNL7HA44P6DUZHAVRRPHYYVV4","short_pith_number":"pith:QXNL7HA4","canonical_record":{"source":{"id":"1305.5438","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-05-23T14:48:21Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"50cb214452f1f9e010b791b90f0a958de8f7b10a15b9c610e3f750f05479ab60","abstract_canon_sha256":"cefd1003800de11c3572c65ae26e40f54c0f59050b7796fae68c1df9008c42fd"},"schema_version":"1.0"},"canonical_sha256":"85dabf9c1ce3fc3a64e0ac62f3e315af2effc9aed9bab8192c54abfb0af51ed0","source":{"kind":"arxiv","id":"1305.5438","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.5438","created_at":"2026-05-18T03:06:44Z"},{"alias_kind":"arxiv_version","alias_value":"1305.5438v2","created_at":"2026-05-18T03:06:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.5438","created_at":"2026-05-18T03:06:44Z"},{"alias_kind":"pith_short_12","alias_value":"QXNL7HA44P6D","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"QXNL7HA44P6DUZHA","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"QXNL7HA4","created_at":"2026-05-18T12:27:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:QXNL7HA44P6DUZHAVRRPHYYVV4","target":"record","payload":{"canonical_record":{"source":{"id":"1305.5438","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-05-23T14:48:21Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"50cb214452f1f9e010b791b90f0a958de8f7b10a15b9c610e3f750f05479ab60","abstract_canon_sha256":"cefd1003800de11c3572c65ae26e40f54c0f59050b7796fae68c1df9008c42fd"},"schema_version":"1.0"},"canonical_sha256":"85dabf9c1ce3fc3a64e0ac62f3e315af2effc9aed9bab8192c54abfb0af51ed0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:06:44.608900Z","signature_b64":"0EfB/2zQgJEDbvNgGeqKEyT8ISPmNrc+zY4q6EwAOjYbRWniQ2VE/Tq6xNej1ZIEK8n/7Xad3B/txt53pPyCBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"85dabf9c1ce3fc3a64e0ac62f3e315af2effc9aed9bab8192c54abfb0af51ed0","last_reissued_at":"2026-05-18T03:06:44.608311Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:06:44.608311Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1305.5438","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":"2026-05-18T03:06:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Dcwr991WX1nBdV4Ev43qGp3tBrtD3dcJ7yLb2XVKiyAoAAo0woyUb8zpVD4LJCFxjO03FA4DQ6CKf2lAroefCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T11:23:58.807590Z"},"content_sha256":"d7093bedbb1dd15654ead122728cddb79329b76580b82123ba7878f2722eb02f","schema_version":"1.0","event_id":"sha256:d7093bedbb1dd15654ead122728cddb79329b76580b82123ba7878f2722eb02f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:QXNL7HA44P6DUZHAVRRPHYYVV4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Sommerfeld enhancements with vector, scalar and pseudoscalar force-carriers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"hep-ph","authors_text":"Yue-Liang Wu, Yu-Feng Zhou, Ze-Peng Liu","submitted_at":"2013-05-23T14:48:21Z","abstract_excerpt":"The first AMS-02 measurement confirms the existence of an excess in the cosmic-ray positron fraction previously reported by the PAMELA and Fermi-LAT experiments. If interpreted in terms of thermal dark matter (DM) annihilation, the AMS-02 result still suggests that the DM annihilation cross section in the present day should be significantly larger than that at freeze out. The Sommerfeld enhancement of DM annihilation cross section as a possible explanation for the observed excesses is subject to constraint from the DM thermal relic density, mainly due to the annihilation of DM particles into f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.5438","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":""},"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":"2026-05-18T03:06:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mFNN3+0aVYMJIz+H89bH/BgzgD7OJoHuBy1WEpWLQfs6P2juzsNATw62TJF31OlHCM/4T39H0WjZCJ9MH1+dCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T11:23:58.809704Z"},"content_sha256":"12ab357f8ab4520be6c64952c7a8ce90ee2f73af724d4e1f556a2ff92e7dd63c","schema_version":"1.0","event_id":"sha256:12ab357f8ab4520be6c64952c7a8ce90ee2f73af724d4e1f556a2ff92e7dd63c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QXNL7HA44P6DUZHAVRRPHYYVV4/bundle.json","state_url":"https://pith.science/pith/QXNL7HA44P6DUZHAVRRPHYYVV4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QXNL7HA44P6DUZHAVRRPHYYVV4/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":"2026-08-11T11:23:58Z","links":{"resolver":"https://pith.science/pith/QXNL7HA44P6DUZHAVRRPHYYVV4","bundle":"https://pith.science/pith/QXNL7HA44P6DUZHAVRRPHYYVV4/bundle.json","state":"https://pith.science/pith/QXNL7HA44P6DUZHAVRRPHYYVV4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QXNL7HA44P6DUZHAVRRPHYYVV4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:QXNL7HA44P6DUZHAVRRPHYYVV4","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":"cefd1003800de11c3572c65ae26e40f54c0f59050b7796fae68c1df9008c42fd","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-05-23T14:48:21Z","title_canon_sha256":"50cb214452f1f9e010b791b90f0a958de8f7b10a15b9c610e3f750f05479ab60"},"schema_version":"1.0","source":{"id":"1305.5438","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.5438","created_at":"2026-05-18T03:06:44Z"},{"alias_kind":"arxiv_version","alias_value":"1305.5438v2","created_at":"2026-05-18T03:06:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.5438","created_at":"2026-05-18T03:06:44Z"},{"alias_kind":"pith_short_12","alias_value":"QXNL7HA44P6D","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"QXNL7HA44P6DUZHA","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"QXNL7HA4","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:12ab357f8ab4520be6c64952c7a8ce90ee2f73af724d4e1f556a2ff92e7dd63c","target":"graph","created_at":"2026-05-18T03:06:44Z","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":"The first AMS-02 measurement confirms the existence of an excess in the cosmic-ray positron fraction previously reported by the PAMELA and Fermi-LAT experiments. If interpreted in terms of thermal dark matter (DM) annihilation, the AMS-02 result still suggests that the DM annihilation cross section in the present day should be significantly larger than that at freeze out. The Sommerfeld enhancement of DM annihilation cross section as a possible explanation for the observed excesses is subject to constraint from the DM thermal relic density, mainly due to the annihilation of DM particles into f","authors_text":"Yue-Liang Wu, Yu-Feng Zhou, Ze-Peng Liu","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-05-23T14:48:21Z","title":"Sommerfeld enhancements with vector, scalar and pseudoscalar force-carriers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.5438","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:d7093bedbb1dd15654ead122728cddb79329b76580b82123ba7878f2722eb02f","target":"record","created_at":"2026-05-18T03:06:44Z","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":"cefd1003800de11c3572c65ae26e40f54c0f59050b7796fae68c1df9008c42fd","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-05-23T14:48:21Z","title_canon_sha256":"50cb214452f1f9e010b791b90f0a958de8f7b10a15b9c610e3f750f05479ab60"},"schema_version":"1.0","source":{"id":"1305.5438","kind":"arxiv","version":2}},"canonical_sha256":"85dabf9c1ce3fc3a64e0ac62f3e315af2effc9aed9bab8192c54abfb0af51ed0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"85dabf9c1ce3fc3a64e0ac62f3e315af2effc9aed9bab8192c54abfb0af51ed0","first_computed_at":"2026-05-18T03:06:44.608311Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:06:44.608311Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0EfB/2zQgJEDbvNgGeqKEyT8ISPmNrc+zY4q6EwAOjYbRWniQ2VE/Tq6xNej1ZIEK8n/7Xad3B/txt53pPyCBA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:06:44.608900Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.5438","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d7093bedbb1dd15654ead122728cddb79329b76580b82123ba7878f2722eb02f","sha256:12ab357f8ab4520be6c64952c7a8ce90ee2f73af724d4e1f556a2ff92e7dd63c"],"state_sha256":"9488c8652d7b3c5d57d6745b17acf9ff79821dd19ee8ec1c15666fdd90018b55"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DZt7jSGFs09VFFBbVCXI+R2u9pc7bdF0aPfpAygJd3Cv/YLwqy71JP199b6UyIz9UxwjtOFWTpdp/9DW25nzDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T11:23:58.822588Z","bundle_sha256":"ae443b83a4c0d86bb6c79484924ab7c293c69652b02e5d54bf789d5387bd2112"}}