{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:ZNUVXEQJJMZBXMMEZ677J6PUIR","short_pith_number":"pith:ZNUVXEQJ","canonical_record":{"source":{"id":"1802.00100","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-01-31T23:29:35Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"71a224624dc0c3d0d24b8f6d58fc1e9df7dea214b49fbe7dc61b33648f9144b1","abstract_canon_sha256":"2c95cdc740bfcc620fba947dd316051fd41fe370e2e6628eead75b941441e9ff"},"schema_version":"1.0"},"canonical_sha256":"cb695b92094b321bb184cfbff4f9f4444d33fbe654fe92af0b78c3f4533876c1","source":{"kind":"arxiv","id":"1802.00100","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.00100","created_at":"2026-05-18T00:24:36Z"},{"alias_kind":"arxiv_version","alias_value":"1802.00100v1","created_at":"2026-05-18T00:24:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.00100","created_at":"2026-05-18T00:24:36Z"},{"alias_kind":"pith_short_12","alias_value":"ZNUVXEQJJMZB","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"ZNUVXEQJJMZBXMME","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"ZNUVXEQJ","created_at":"2026-05-18T12:33:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:ZNUVXEQJJMZBXMMEZ677J6PUIR","target":"record","payload":{"canonical_record":{"source":{"id":"1802.00100","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-01-31T23:29:35Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"71a224624dc0c3d0d24b8f6d58fc1e9df7dea214b49fbe7dc61b33648f9144b1","abstract_canon_sha256":"2c95cdc740bfcc620fba947dd316051fd41fe370e2e6628eead75b941441e9ff"},"schema_version":"1.0"},"canonical_sha256":"cb695b92094b321bb184cfbff4f9f4444d33fbe654fe92af0b78c3f4533876c1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:24:36.807388Z","signature_b64":"1kK71Ke99ch76D21SAbo2yrUFZ7j/5Evg54XTnVtsw8AdYrDr6iuiUoWw72vLfQGv/cRhi/2qnCrTIScQtVPDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cb695b92094b321bb184cfbff4f9f4444d33fbe654fe92af0b78c3f4533876c1","last_reissued_at":"2026-05-18T00:24:36.806785Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:24:36.806785Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.00100","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":"2026-05-18T00:24:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z/NHJ27wdUKTs7EM/3pm0nDLdhcB/NeMeWMTfoKxg3uv/SO3s3dNrRLnvKHwHEimYivo2vZi1QJfmWcgpKwRCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T04:15:41.148590Z"},"content_sha256":"533df003d42994a0e00c1bb1abf0997b3ebac21ec5b3143d664dae7f69590d90","schema_version":"1.0","event_id":"sha256:533df003d42994a0e00c1bb1abf0997b3ebac21ec5b3143d664dae7f69590d90"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:ZNUVXEQJJMZBXMMEZ677J6PUIR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Search for Gamma-Ray Emission from Local Primordial Black Holes with the Fermi Large Area Telescope","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"astro-ph.HE","authors_text":"The Fermi-LAT Collaboration","submitted_at":"2018-01-31T23:29:35Z","abstract_excerpt":"Black holes with masses below approximately $10^{15}$ g are expected to emit gamma rays with energies above a few tens of MeV, which can be detected by the Fermi Large Area Telescope (LAT). Although black holes with these masses cannot be formed as a result of stellar evolution, they may have formed in the early Universe and are therefore called Primordial Black Holes (PBHs). Previous searches for PBHs have focused on either short timescale bursts or the contribution of PBHs to the isotropic gamma-ray emission. We show that, in case of individual PBHs, the Fermi LAT is most sensitive to PBHs w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.00100","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":""},"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":"2026-05-18T00:24:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8JIjSgzmjJJxZEihWjgFwyNc6ZQ03/9Jyiw4PlMnMNpGmJAOpEhX7u1jlA860RZkmX+LOs6Jk0Ktz3hNDedUBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T04:15:41.149229Z"},"content_sha256":"e7e08bd5879630bde783a2aea8d625fc34035c07c358ab817c6f9d643a25a3d4","schema_version":"1.0","event_id":"sha256:e7e08bd5879630bde783a2aea8d625fc34035c07c358ab817c6f9d643a25a3d4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZNUVXEQJJMZBXMMEZ677J6PUIR/bundle.json","state_url":"https://pith.science/pith/ZNUVXEQJJMZBXMMEZ677J6PUIR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZNUVXEQJJMZBXMMEZ677J6PUIR/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":"2026-05-26T04:15:41Z","links":{"resolver":"https://pith.science/pith/ZNUVXEQJJMZBXMMEZ677J6PUIR","bundle":"https://pith.science/pith/ZNUVXEQJJMZBXMMEZ677J6PUIR/bundle.json","state":"https://pith.science/pith/ZNUVXEQJJMZBXMMEZ677J6PUIR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZNUVXEQJJMZBXMMEZ677J6PUIR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:ZNUVXEQJJMZBXMMEZ677J6PUIR","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":"2c95cdc740bfcc620fba947dd316051fd41fe370e2e6628eead75b941441e9ff","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-01-31T23:29:35Z","title_canon_sha256":"71a224624dc0c3d0d24b8f6d58fc1e9df7dea214b49fbe7dc61b33648f9144b1"},"schema_version":"1.0","source":{"id":"1802.00100","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.00100","created_at":"2026-05-18T00:24:36Z"},{"alias_kind":"arxiv_version","alias_value":"1802.00100v1","created_at":"2026-05-18T00:24:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.00100","created_at":"2026-05-18T00:24:36Z"},{"alias_kind":"pith_short_12","alias_value":"ZNUVXEQJJMZB","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"ZNUVXEQJJMZBXMME","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"ZNUVXEQJ","created_at":"2026-05-18T12:33:07Z"}],"graph_snapshots":[{"event_id":"sha256:e7e08bd5879630bde783a2aea8d625fc34035c07c358ab817c6f9d643a25a3d4","target":"graph","created_at":"2026-05-18T00:24:36Z","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":"Black holes with masses below approximately $10^{15}$ g are expected to emit gamma rays with energies above a few tens of MeV, which can be detected by the Fermi Large Area Telescope (LAT). Although black holes with these masses cannot be formed as a result of stellar evolution, they may have formed in the early Universe and are therefore called Primordial Black Holes (PBHs). Previous searches for PBHs have focused on either short timescale bursts or the contribution of PBHs to the isotropic gamma-ray emission. We show that, in case of individual PBHs, the Fermi LAT is most sensitive to PBHs w","authors_text":"The Fermi-LAT Collaboration","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-01-31T23:29:35Z","title":"Search for Gamma-Ray Emission from Local Primordial Black Holes with the Fermi Large Area Telescope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.00100","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":"sha256:533df003d42994a0e00c1bb1abf0997b3ebac21ec5b3143d664dae7f69590d90","target":"record","created_at":"2026-05-18T00:24:36Z","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":"2c95cdc740bfcc620fba947dd316051fd41fe370e2e6628eead75b941441e9ff","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-01-31T23:29:35Z","title_canon_sha256":"71a224624dc0c3d0d24b8f6d58fc1e9df7dea214b49fbe7dc61b33648f9144b1"},"schema_version":"1.0","source":{"id":"1802.00100","kind":"arxiv","version":1}},"canonical_sha256":"cb695b92094b321bb184cfbff4f9f4444d33fbe654fe92af0b78c3f4533876c1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cb695b92094b321bb184cfbff4f9f4444d33fbe654fe92af0b78c3f4533876c1","first_computed_at":"2026-05-18T00:24:36.806785Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:36.806785Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1kK71Ke99ch76D21SAbo2yrUFZ7j/5Evg54XTnVtsw8AdYrDr6iuiUoWw72vLfQGv/cRhi/2qnCrTIScQtVPDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:36.807388Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.00100","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:533df003d42994a0e00c1bb1abf0997b3ebac21ec5b3143d664dae7f69590d90","sha256:e7e08bd5879630bde783a2aea8d625fc34035c07c358ab817c6f9d643a25a3d4"],"state_sha256":"104fc17620e7479e077c1b94c30a0a3553b767da964b5beb9df3820411258893"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wqyTHmpEvGOBK5RjcXDIUuAgHtlWNm8SSRZc6tcXTEPlhTv7161wpXODmxY3KejMoSz1ioOisgICFqY7RyS8Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T04:15:41.152454Z","bundle_sha256":"9e5565085057b986232c05cada3d4f464bcfeb312225560b48487f80fbba6737"}}