{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:TDZ4HCEGPC552X2NZP6IEYOUVB","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":"34157a80d3d2428721c77c80112fd9e2f076a72a5c2afaf789fcb188d3989982","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-03-11T16:37:45Z","title_canon_sha256":"28ac74ec1fca33f863acf0049d7f37a3e601acc5a33b68c05be31196f1895012"},"schema_version":"1.0","source":{"id":"1903.04424","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.04424","created_at":"2026-05-17T23:51:29Z"},{"alias_kind":"arxiv_version","alias_value":"1903.04424v2","created_at":"2026-05-17T23:51:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.04424","created_at":"2026-05-17T23:51:29Z"},{"alias_kind":"pith_short_12","alias_value":"TDZ4HCEGPC55","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"TDZ4HCEGPC552X2N","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"TDZ4HCEG","created_at":"2026-05-18T12:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:67f09530ff298303a1ceeb50ab72da3592114f1a93f99eb3e429730e36132a34","target":"graph","created_at":"2026-05-17T23:51:29Z","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 LIGO discoveries have rekindled suggestions that primordial black holes (BHs) may constitute part to all of the dark matter (DM) in the Universe. Such suggestions came from 1) the observed merger rate of the BHs, 2) their unusual masses, 3) their low/zero spins, and 4) also from the independently uncovered cosmic infrared background (CIB) fluctuations signal of high amplitude and coherence with unresolved cosmic X-ray background (CXB). Here we summarize the prospects to resolve this important issue with electromagnetic observations using the instruments and tools expected in the 2020's. Th","authors_text":"A. Achucarro, A. Arbey, A-C. Davis, A. Cieplak, A. Goobar, A. Hector, A. Kashlinsky, A. Kehagias, A. Knebe, A. Raccanelli, A. Riotto, B. J. Carr, C. Byrnes, C. Germani, C. Ranc, C. Unal, D. Gaggero, D. Kazanas, D. Racco, E. Kovetz, E. Mediavilla, E. Ruiz-Morales, F. Atrio-Barandela, F. Calore, F. Kuhnel, F. Vidotto, G-F. Giudice, G. Franciolini, G. Hasinger, G. Hutsi, G. Tasinato, G. Tringas, H. Tashiro, H. Veermae, I. Cholis, I. Dalianis, I. Dvorkin, I. Musco, J. Annis, J. Chluba, J. Garcia-Bellido, J. Georg, J-L. Bernal, J. MacGibbon, J-M. Ezquiaga, J. Munoz, J. Rhodes, J. Rubio, J. Schnittman, K. Belotsky, K. Kohri, L. Amendola, L. Marzola, L. Wyrzykowski, M . Hundertmark, M. Kamionkowski, M. Kawasaki, M. Khlopov, M. Raidal, M. Ricotti, M. Sasaki, M. Takada, N. Bellomo, N. Rattenbury, O. Ozsoy, P. Cole, P. Fleury, P. Meszaros, P. Mroz, P. Pani, R. Emparan, R. G. Arendt, R. Jansen, R. Street, R. Windhorst, S. Bird, S. Calchi Novati, S. Clesse, S. Koushiappas, S. Nesseris, S. Rubin, S. Watson, S.Yokoyama, S. Young, T. Davis, V. Bozza, V. De Luca, V. Poulin, V. Takhistov, V. Vaskonen, Y. Ali-Haimoud, Y. Shvartzvald, Y. Tada, Y. Tsapras","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-03-11T16:37:45Z","title":"Electromagnetic probes of primordial black holes as dark matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.04424","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":"sha256:1de5bd5e1570444c8b89ee2a2180358d31fdb41a5f2ebeb90c56e385cc795e39","target":"record","created_at":"2026-05-17T23:51:29Z","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":"34157a80d3d2428721c77c80112fd9e2f076a72a5c2afaf789fcb188d3989982","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-03-11T16:37:45Z","title_canon_sha256":"28ac74ec1fca33f863acf0049d7f37a3e601acc5a33b68c05be31196f1895012"},"schema_version":"1.0","source":{"id":"1903.04424","kind":"arxiv","version":2}},"canonical_sha256":"98f3c3888678bbdd5f4dcbfc8261d4a843ca12a96b19629245bcb436c0657452","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"98f3c3888678bbdd5f4dcbfc8261d4a843ca12a96b19629245bcb436c0657452","first_computed_at":"2026-05-17T23:51:29.476202Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:51:29.476202Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NSpF9hud/cDJrOnzR2DLdSG2p/eQfxclSzdv8JQPkgvoc6oPg1alJpq3WpbCgGQYp+qT56s6C6OqhOigL77nDw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:51:29.476593Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.04424","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1de5bd5e1570444c8b89ee2a2180358d31fdb41a5f2ebeb90c56e385cc795e39","sha256:67f09530ff298303a1ceeb50ab72da3592114f1a93f99eb3e429730e36132a34"],"state_sha256":"455158e40b993cfd71501d58306294e17eae9bc7980224540a0f4c1a2eb1c2a6"}