{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:ZGQ5EDMAEG6P5X47RJ3OY6ET2W","short_pith_number":"pith:ZGQ5EDMA","canonical_record":{"source":{"id":"1908.06986","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-08-19T18:00:01Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"2ba9c745c52341b61d2c44b9c1e44cf343e7bd9925a494ca5687c76bab4029f7","abstract_canon_sha256":"277e1a47e94f405786fc7294c9d38586137962cb6fc935c08f792a966e2b6998"},"schema_version":"1.0"},"canonical_sha256":"c9a1d20d8021bcfedf9f8a76ec7893d5b24e7b82277ecc83dec1985dcf25995d","source":{"kind":"arxiv","id":"1908.06986","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.06986","created_at":"2026-07-05T00:28:12Z"},{"alias_kind":"arxiv_version","alias_value":"1908.06986v1","created_at":"2026-07-05T00:28:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.06986","created_at":"2026-07-05T00:28:12Z"},{"alias_kind":"pith_short_12","alias_value":"ZGQ5EDMAEG6P","created_at":"2026-07-05T00:28:12Z"},{"alias_kind":"pith_short_16","alias_value":"ZGQ5EDMAEG6P5X47","created_at":"2026-07-05T00:28:12Z"},{"alias_kind":"pith_short_8","alias_value":"ZGQ5EDMA","created_at":"2026-07-05T00:28:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:ZGQ5EDMAEG6P5X47RJ3OY6ET2W","target":"record","payload":{"canonical_record":{"source":{"id":"1908.06986","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-08-19T18:00:01Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"2ba9c745c52341b61d2c44b9c1e44cf343e7bd9925a494ca5687c76bab4029f7","abstract_canon_sha256":"277e1a47e94f405786fc7294c9d38586137962cb6fc935c08f792a966e2b6998"},"schema_version":"1.0"},"canonical_sha256":"c9a1d20d8021bcfedf9f8a76ec7893d5b24e7b82277ecc83dec1985dcf25995d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:28:12.048526Z","signature_b64":"oovPGfF5uDNeaDeAtCEkWQjXmOWi1ZgxLUAqGys919YsPnY57pwnftajFjn6s7BYdp7oobB78FvxfNRULM8ZDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c9a1d20d8021bcfedf9f8a76ec7893d5b24e7b82277ecc83dec1985dcf25995d","last_reissued_at":"2026-07-05T00:28:12.048034Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:28:12.048034Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.06986","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T00:28:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8MNoqKPWBOS9pf2sCWANpDQ6ZatkZ6Srupy/HgyqGq1SmHdwZKMoWuwDQe8Los9mt6M/hxZl2vbXm6Dp8cPBBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T06:04:39.559683Z"},"content_sha256":"a93d9845c8b1cebdcd3a76bf3c11e45912008081554b88b32a58c0c3d3fbeb73","schema_version":"1.0","event_id":"sha256:a93d9845c8b1cebdcd3a76bf3c11e45912008081554b88b32a58c0c3d3fbeb73"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:ZGQ5EDMAEG6P5X47RJ3OY6ET2W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reviving Millicharged Dark Matter for 21-cm Cosmology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"hep-ph","authors_text":"Diego Redigolo, Hongwan Liu, Nadav Joseph Outmezguine, Tomer Volansky","submitted_at":"2019-08-19T18:00:01Z","abstract_excerpt":"The existence of millicharged dark matter (mDM) can leave a measurable imprint on 21-cm cosmology through mDM-baryon scattering. However, the minimal scenario is severely constrained by existing cosmological bounds on both the fraction of dark matter that can be millicharged and the mass of mDM particles. We point out that introducing a long-range force between a millicharged subcomponent of dark matter and the dominant cold dark matter (CDM) component leads to efficient cooling of baryons in the early universe, while also significantly extending the range of viable mDM masses. Such a scenario"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.06986","kind":"arxiv","version":1},"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/1908.06986/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T00:28:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5O9kqyUMO7vIobmZkLaCBDCkes6Rsc9YcC9Zn8AGqNNQR33aMcneVxOjb6ZF0t6Jc7OXiCHJJwLam2ddlmg4Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T06:04:39.560204Z"},"content_sha256":"d1e63fe79fa5530ef156f8a52d12fa44bbd54e520d01e692fbb552ee7dd53b6a","schema_version":"1.0","event_id":"sha256:d1e63fe79fa5530ef156f8a52d12fa44bbd54e520d01e692fbb552ee7dd53b6a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZGQ5EDMAEG6P5X47RJ3OY6ET2W/bundle.json","state_url":"https://pith.science/pith/ZGQ5EDMAEG6P5X47RJ3OY6ET2W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZGQ5EDMAEG6P5X47RJ3OY6ET2W/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":"2026-08-15T06:04:39Z","links":{"resolver":"https://pith.science/pith/ZGQ5EDMAEG6P5X47RJ3OY6ET2W","bundle":"https://pith.science/pith/ZGQ5EDMAEG6P5X47RJ3OY6ET2W/bundle.json","state":"https://pith.science/pith/ZGQ5EDMAEG6P5X47RJ3OY6ET2W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZGQ5EDMAEG6P5X47RJ3OY6ET2W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ZGQ5EDMAEG6P5X47RJ3OY6ET2W","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":"277e1a47e94f405786fc7294c9d38586137962cb6fc935c08f792a966e2b6998","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-08-19T18:00:01Z","title_canon_sha256":"2ba9c745c52341b61d2c44b9c1e44cf343e7bd9925a494ca5687c76bab4029f7"},"schema_version":"1.0","source":{"id":"1908.06986","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.06986","created_at":"2026-07-05T00:28:12Z"},{"alias_kind":"arxiv_version","alias_value":"1908.06986v1","created_at":"2026-07-05T00:28:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.06986","created_at":"2026-07-05T00:28:12Z"},{"alias_kind":"pith_short_12","alias_value":"ZGQ5EDMAEG6P","created_at":"2026-07-05T00:28:12Z"},{"alias_kind":"pith_short_16","alias_value":"ZGQ5EDMAEG6P5X47","created_at":"2026-07-05T00:28:12Z"},{"alias_kind":"pith_short_8","alias_value":"ZGQ5EDMA","created_at":"2026-07-05T00:28:12Z"}],"graph_snapshots":[{"event_id":"sha256:d1e63fe79fa5530ef156f8a52d12fa44bbd54e520d01e692fbb552ee7dd53b6a","target":"graph","created_at":"2026-07-05T00:28:12Z","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/1908.06986/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The existence of millicharged dark matter (mDM) can leave a measurable imprint on 21-cm cosmology through mDM-baryon scattering. However, the minimal scenario is severely constrained by existing cosmological bounds on both the fraction of dark matter that can be millicharged and the mass of mDM particles. We point out that introducing a long-range force between a millicharged subcomponent of dark matter and the dominant cold dark matter (CDM) component leads to efficient cooling of baryons in the early universe, while also significantly extending the range of viable mDM masses. Such a scenario","authors_text":"Diego Redigolo, Hongwan Liu, Nadav Joseph Outmezguine, Tomer Volansky","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-08-19T18:00:01Z","title":"Reviving Millicharged Dark Matter for 21-cm Cosmology"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.06986","kind":"arxiv","version":1},"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:a93d9845c8b1cebdcd3a76bf3c11e45912008081554b88b32a58c0c3d3fbeb73","target":"record","created_at":"2026-07-05T00:28:12Z","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":"277e1a47e94f405786fc7294c9d38586137962cb6fc935c08f792a966e2b6998","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-08-19T18:00:01Z","title_canon_sha256":"2ba9c745c52341b61d2c44b9c1e44cf343e7bd9925a494ca5687c76bab4029f7"},"schema_version":"1.0","source":{"id":"1908.06986","kind":"arxiv","version":1}},"canonical_sha256":"c9a1d20d8021bcfedf9f8a76ec7893d5b24e7b82277ecc83dec1985dcf25995d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c9a1d20d8021bcfedf9f8a76ec7893d5b24e7b82277ecc83dec1985dcf25995d","first_computed_at":"2026-07-05T00:28:12.048034Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:28:12.048034Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oovPGfF5uDNeaDeAtCEkWQjXmOWi1ZgxLUAqGys919YsPnY57pwnftajFjn6s7BYdp7oobB78FvxfNRULM8ZDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:28:12.048526Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.06986","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a93d9845c8b1cebdcd3a76bf3c11e45912008081554b88b32a58c0c3d3fbeb73","sha256:d1e63fe79fa5530ef156f8a52d12fa44bbd54e520d01e692fbb552ee7dd53b6a"],"state_sha256":"454661cea198dbb7003f7e0258b130140012e9becfe3bb897bf46de5fb930964"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZGOKDsucmTTQ1BOVa+cl1v/7XOJ4lkPWXHm5gnL8SPsI7EOpqD+QgoJfBOFcdMM6UsOlRlprKmpBYvoeweFIDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T06:04:39.564782Z","bundle_sha256":"0f08f902d3e1ada6cbf7588d1588ed0c9696b3d14c438e0e33e784e32bdd01aa"}}