{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:TZ5U7IHFVUN5E3CQ7F6K62ABOM","short_pith_number":"pith:TZ5U7IHF","canonical_record":{"source":{"id":"1810.07705","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-10-17T18:00:14Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"267d6863ba984aee2470335d0e0259ddd29c968f14692cd377b2b26145a4e6a6","abstract_canon_sha256":"aad92a181ea1ad1187cbd5eb121f4e4adfdb19f6c9ae75c8661458293f78e576"},"schema_version":"1.0"},"canonical_sha256":"9e7b4fa0e5ad1bd26c50f97caf6801731b554253def8b140ea1ff211f55d7031","source":{"kind":"arxiv","id":"1810.07705","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.07705","created_at":"2026-05-17T23:41:22Z"},{"alias_kind":"arxiv_version","alias_value":"1810.07705v3","created_at":"2026-05-17T23:41:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.07705","created_at":"2026-05-17T23:41:22Z"},{"alias_kind":"pith_short_12","alias_value":"TZ5U7IHFVUN5","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"TZ5U7IHFVUN5E3CQ","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"TZ5U7IHF","created_at":"2026-05-18T12:32:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:TZ5U7IHFVUN5E3CQ7F6K62ABOM","target":"record","payload":{"canonical_record":{"source":{"id":"1810.07705","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-10-17T18:00:14Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"267d6863ba984aee2470335d0e0259ddd29c968f14692cd377b2b26145a4e6a6","abstract_canon_sha256":"aad92a181ea1ad1187cbd5eb121f4e4adfdb19f6c9ae75c8661458293f78e576"},"schema_version":"1.0"},"canonical_sha256":"9e7b4fa0e5ad1bd26c50f97caf6801731b554253def8b140ea1ff211f55d7031","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:22.058387Z","signature_b64":"+cd4vn+emw0WO+iZJbbKJ+s0yqOPAVOWyHYjWZkSjUns0HDJVVSY4VIEjGNLrwx0rntGS3xYQUbn/A5Qw8wBDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9e7b4fa0e5ad1bd26c50f97caf6801731b554253def8b140ea1ff211f55d7031","last_reissued_at":"2026-05-17T23:41:22.057642Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:22.057642Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.07705","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:41:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nGZulL7e7HA28Aa5XgQs4gZ/OWy1eSaxvnNF3YKsbzMmpyxufa+z5v2NX+ZnLSAkFeOFLe/RThP/k29EWTZUBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T22:11:24.497850Z"},"content_sha256":"09279419a1e5a5d4ad5778c648a9e5dbb65fef389d94ef725369ad7165312cb5","schema_version":"1.0","event_id":"sha256:09279419a1e5a5d4ad5778c648a9e5dbb65fef389d94ef725369ad7165312cb5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:TZ5U7IHFVUN5E3CQ7F6K62ABOM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reverse Direct Detection: Cosmic Ray Scattering With Light Dark Matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"hep-ph","authors_text":"Christopher V. Cappiello, John F. Beacom, Kenny C. Y. Ng","submitted_at":"2018-10-17T18:00:14Z","abstract_excerpt":"Sub-GeV dark matter candidates are of increasing interest, because long-favored candidates such as GeV-scale WIMPs have not been detected. For low-mass dark matter, model-independent constraints are weak or nonexistent. We show that for such candidates, because the number density is high, cosmic ray propagation can be affected by elastic scattering with dark matter. We call this type of search `reverse direct detection,' because dark matter is the target and Standard Model particles are the beam. Using a simple propagation model for galactic cosmic rays, we calculate how dark matter affects co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.07705","kind":"arxiv","version":3},"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":"2026-05-17T23:41:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rzu3eo6AUis4DEbOa/6W9jTy+E4CJJ+HUVc4iDNzugQyRKVED+Rms6bqvvNAcwGgIRYaEfNwBbORJ7zrCjcnBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T22:11:24.498554Z"},"content_sha256":"209353c19c750af2c2302395b60697a44aa1f83f7ca2d6051fa667291c69bcd9","schema_version":"1.0","event_id":"sha256:209353c19c750af2c2302395b60697a44aa1f83f7ca2d6051fa667291c69bcd9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TZ5U7IHFVUN5E3CQ7F6K62ABOM/bundle.json","state_url":"https://pith.science/pith/TZ5U7IHFVUN5E3CQ7F6K62ABOM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TZ5U7IHFVUN5E3CQ7F6K62ABOM/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":"2026-05-28T22:11:24Z","links":{"resolver":"https://pith.science/pith/TZ5U7IHFVUN5E3CQ7F6K62ABOM","bundle":"https://pith.science/pith/TZ5U7IHFVUN5E3CQ7F6K62ABOM/bundle.json","state":"https://pith.science/pith/TZ5U7IHFVUN5E3CQ7F6K62ABOM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TZ5U7IHFVUN5E3CQ7F6K62ABOM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:TZ5U7IHFVUN5E3CQ7F6K62ABOM","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":"aad92a181ea1ad1187cbd5eb121f4e4adfdb19f6c9ae75c8661458293f78e576","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-10-17T18:00:14Z","title_canon_sha256":"267d6863ba984aee2470335d0e0259ddd29c968f14692cd377b2b26145a4e6a6"},"schema_version":"1.0","source":{"id":"1810.07705","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.07705","created_at":"2026-05-17T23:41:22Z"},{"alias_kind":"arxiv_version","alias_value":"1810.07705v3","created_at":"2026-05-17T23:41:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.07705","created_at":"2026-05-17T23:41:22Z"},{"alias_kind":"pith_short_12","alias_value":"TZ5U7IHFVUN5","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"TZ5U7IHFVUN5E3CQ","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"TZ5U7IHF","created_at":"2026-05-18T12:32:56Z"}],"graph_snapshots":[{"event_id":"sha256:209353c19c750af2c2302395b60697a44aa1f83f7ca2d6051fa667291c69bcd9","target":"graph","created_at":"2026-05-17T23:41:22Z","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":"Sub-GeV dark matter candidates are of increasing interest, because long-favored candidates such as GeV-scale WIMPs have not been detected. For low-mass dark matter, model-independent constraints are weak or nonexistent. We show that for such candidates, because the number density is high, cosmic ray propagation can be affected by elastic scattering with dark matter. We call this type of search `reverse direct detection,' because dark matter is the target and Standard Model particles are the beam. Using a simple propagation model for galactic cosmic rays, we calculate how dark matter affects co","authors_text":"Christopher V. Cappiello, John F. Beacom, Kenny C. Y. Ng","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-10-17T18:00:14Z","title":"Reverse Direct Detection: Cosmic Ray Scattering With Light Dark Matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.07705","kind":"arxiv","version":3},"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":"sha256:09279419a1e5a5d4ad5778c648a9e5dbb65fef389d94ef725369ad7165312cb5","target":"record","created_at":"2026-05-17T23:41:22Z","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":"aad92a181ea1ad1187cbd5eb121f4e4adfdb19f6c9ae75c8661458293f78e576","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-10-17T18:00:14Z","title_canon_sha256":"267d6863ba984aee2470335d0e0259ddd29c968f14692cd377b2b26145a4e6a6"},"schema_version":"1.0","source":{"id":"1810.07705","kind":"arxiv","version":3}},"canonical_sha256":"9e7b4fa0e5ad1bd26c50f97caf6801731b554253def8b140ea1ff211f55d7031","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9e7b4fa0e5ad1bd26c50f97caf6801731b554253def8b140ea1ff211f55d7031","first_computed_at":"2026-05-17T23:41:22.057642Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:22.057642Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+cd4vn+emw0WO+iZJbbKJ+s0yqOPAVOWyHYjWZkSjUns0HDJVVSY4VIEjGNLrwx0rntGS3xYQUbn/A5Qw8wBDQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:22.058387Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.07705","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:09279419a1e5a5d4ad5778c648a9e5dbb65fef389d94ef725369ad7165312cb5","sha256:209353c19c750af2c2302395b60697a44aa1f83f7ca2d6051fa667291c69bcd9"],"state_sha256":"67509f73fd8fa4991a6ad00bf59edaddbe409d96747f89e58445aaaa5867edcc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UmRdvlrQpMueAZNz3y7szoUK0p0WHvwK6IEIdb28R9RlF555r0yqWqK9454wuAFRqMuf7g1n8TjLhsgEeGkoDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T22:11:24.502253Z","bundle_sha256":"0c442414e8bbb88596c9e081dd825c632b6187de085ec643877f06666564f58d"}}