{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:WF2YGUNU55IAHLFUCU3JPE2Z44","short_pith_number":"pith:WF2YGUNU","canonical_record":{"source":{"id":"1312.7772","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-12-30T16:40:29Z","cross_cats_sorted":["astro-ph.CO","hep-ex","nucl-th"],"title_canon_sha256":"bd0a5bf92b24eea76cddc634bdc531288d03cfc46404ef071ed3ab480123794b","abstract_canon_sha256":"3098dab33711bc382fcb4103a923004f2b9494c79bff03727507e0693778669b"},"schema_version":"1.0"},"canonical_sha256":"b1758351b4ef5003acb41536979359e716c20acdaa012006a98818b7a33fe0a5","source":{"kind":"arxiv","id":"1312.7772","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.7772","created_at":"2026-05-18T02:46:32Z"},{"alias_kind":"arxiv_version","alias_value":"1312.7772v2","created_at":"2026-05-18T02:46:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.7772","created_at":"2026-05-18T02:46:32Z"},{"alias_kind":"pith_short_12","alias_value":"WF2YGUNU55IA","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"WF2YGUNU55IAHLFU","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"WF2YGUNU","created_at":"2026-05-18T12:28:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:WF2YGUNU55IAHLFUCU3JPE2Z44","target":"record","payload":{"canonical_record":{"source":{"id":"1312.7772","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-12-30T16:40:29Z","cross_cats_sorted":["astro-ph.CO","hep-ex","nucl-th"],"title_canon_sha256":"bd0a5bf92b24eea76cddc634bdc531288d03cfc46404ef071ed3ab480123794b","abstract_canon_sha256":"3098dab33711bc382fcb4103a923004f2b9494c79bff03727507e0693778669b"},"schema_version":"1.0"},"canonical_sha256":"b1758351b4ef5003acb41536979359e716c20acdaa012006a98818b7a33fe0a5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:46:32.752502Z","signature_b64":"/jnZFKqkpb/V+nMJx+0Z/LMITxIqxVrlvdlkhqtC97HH2ufURXJD2MMMg7Dr6e69Tlb52XW6ad/MEgyB6gZ/Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b1758351b4ef5003acb41536979359e716c20acdaa012006a98818b7a33fe0a5","last_reissued_at":"2026-05-18T02:46:32.752090Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:46:32.752090Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1312.7772","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":"2026-05-18T02:46:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"azeH0KDER7QGX90FzDl67ZLuGML148TJeOPY+XGYmq1JYwJEL+CZqZ9Hxi9C6UaOHrzfQdqeQ8tzfOYw/mu0Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T02:05:21.897871Z"},"content_sha256":"2d9f576f3d20ab03f2a7a938aa09d840804c4cbf8bb5aa8cff8871d483c4f2e9","schema_version":"1.0","event_id":"sha256:2d9f576f3d20ab03f2a7a938aa09d840804c4cbf8bb5aa8cff8871d483c4f2e9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:WF2YGUNU55IAHLFUCU3JPE2Z44","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Overcoming Velocity Suppression in Dark-Matter Direct-Detection Experiments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Brooks Thomas, David Yaylali, Jason Kumar, Keith R. Dienes","submitted_at":"2013-12-30T16:40:29Z","abstract_excerpt":"Pseudoscalar couplings between Standard-Model quarks and dark matter are normally not considered relevant for dark-matter direct-detection experiments because they lead to velocity-suppressed scattering cross-sections in the non-relativistic limit. However, at the nucleon level, such couplings are effectively enhanced by factors of order ${\\cal O}(m_N/m_q)\\sim 10^3$, where $m_N$ and $m_q$ are appropriate nucleon and quark masses respectively. This enhancement can thus be sufficient to overcome the corresponding velocity suppression, implying --- contrary to common lore --- that direct-detectio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.7772","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":"2026-05-18T02:46:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TkuN8kuVf+FUEofkbICdlJ3bSxfV6Bp2iPigtlNCVYc60MvHSw8Zw3cBBU5gjAlt4Z5NWpN8MJ79cX1KAUseCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T02:05:21.898212Z"},"content_sha256":"6b02c4dc3a0f1f098607c335ca3dd9a6a35d4b90785ae1b3993142ac6dc3fc78","schema_version":"1.0","event_id":"sha256:6b02c4dc3a0f1f098607c335ca3dd9a6a35d4b90785ae1b3993142ac6dc3fc78"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WF2YGUNU55IAHLFUCU3JPE2Z44/bundle.json","state_url":"https://pith.science/pith/WF2YGUNU55IAHLFUCU3JPE2Z44/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WF2YGUNU55IAHLFUCU3JPE2Z44/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":"2026-06-02T02:05:21Z","links":{"resolver":"https://pith.science/pith/WF2YGUNU55IAHLFUCU3JPE2Z44","bundle":"https://pith.science/pith/WF2YGUNU55IAHLFUCU3JPE2Z44/bundle.json","state":"https://pith.science/pith/WF2YGUNU55IAHLFUCU3JPE2Z44/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WF2YGUNU55IAHLFUCU3JPE2Z44/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:WF2YGUNU55IAHLFUCU3JPE2Z44","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":"3098dab33711bc382fcb4103a923004f2b9494c79bff03727507e0693778669b","cross_cats_sorted":["astro-ph.CO","hep-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-12-30T16:40:29Z","title_canon_sha256":"bd0a5bf92b24eea76cddc634bdc531288d03cfc46404ef071ed3ab480123794b"},"schema_version":"1.0","source":{"id":"1312.7772","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.7772","created_at":"2026-05-18T02:46:32Z"},{"alias_kind":"arxiv_version","alias_value":"1312.7772v2","created_at":"2026-05-18T02:46:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.7772","created_at":"2026-05-18T02:46:32Z"},{"alias_kind":"pith_short_12","alias_value":"WF2YGUNU55IA","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"WF2YGUNU55IAHLFU","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"WF2YGUNU","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:6b02c4dc3a0f1f098607c335ca3dd9a6a35d4b90785ae1b3993142ac6dc3fc78","target":"graph","created_at":"2026-05-18T02:46:32Z","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":"Pseudoscalar couplings between Standard-Model quarks and dark matter are normally not considered relevant for dark-matter direct-detection experiments because they lead to velocity-suppressed scattering cross-sections in the non-relativistic limit. However, at the nucleon level, such couplings are effectively enhanced by factors of order ${\\cal O}(m_N/m_q)\\sim 10^3$, where $m_N$ and $m_q$ are appropriate nucleon and quark masses respectively. This enhancement can thus be sufficient to overcome the corresponding velocity suppression, implying --- contrary to common lore --- that direct-detectio","authors_text":"Brooks Thomas, David Yaylali, Jason Kumar, Keith R. Dienes","cross_cats":["astro-ph.CO","hep-ex","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-12-30T16:40:29Z","title":"Overcoming Velocity Suppression in Dark-Matter Direct-Detection Experiments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.7772","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":"sha256:2d9f576f3d20ab03f2a7a938aa09d840804c4cbf8bb5aa8cff8871d483c4f2e9","target":"record","created_at":"2026-05-18T02:46:32Z","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":"3098dab33711bc382fcb4103a923004f2b9494c79bff03727507e0693778669b","cross_cats_sorted":["astro-ph.CO","hep-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-12-30T16:40:29Z","title_canon_sha256":"bd0a5bf92b24eea76cddc634bdc531288d03cfc46404ef071ed3ab480123794b"},"schema_version":"1.0","source":{"id":"1312.7772","kind":"arxiv","version":2}},"canonical_sha256":"b1758351b4ef5003acb41536979359e716c20acdaa012006a98818b7a33fe0a5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b1758351b4ef5003acb41536979359e716c20acdaa012006a98818b7a33fe0a5","first_computed_at":"2026-05-18T02:46:32.752090Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:46:32.752090Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/jnZFKqkpb/V+nMJx+0Z/LMITxIqxVrlvdlkhqtC97HH2ufURXJD2MMMg7Dr6e69Tlb52XW6ad/MEgyB6gZ/Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:46:32.752502Z","signed_message":"canonical_sha256_bytes"},"source_id":"1312.7772","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2d9f576f3d20ab03f2a7a938aa09d840804c4cbf8bb5aa8cff8871d483c4f2e9","sha256:6b02c4dc3a0f1f098607c335ca3dd9a6a35d4b90785ae1b3993142ac6dc3fc78"],"state_sha256":"32c9a8e77919323f63662f1e7b3d8551f8e89e331a14cce27d864db5347b8db4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kP1sHbSdZsD4IYdhMaB4XIb91r+et8bi4rCc0SugwdGkHMLaxQjOFqCCOnYVHZP8tMWmodcSA2Ttb01o1s+eAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T02:05:21.900145Z","bundle_sha256":"aaf738787e9a09b02c811fd613d9fcb7b4f626838fd0c17264cfc712b997736d"}}