{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:4F3ZUFULM5RCEBVS7KNNQWM4K2","short_pith_number":"pith:4F3ZUFUL","canonical_record":{"source":{"id":"1003.4580","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-03-24T06:11:53Z","cross_cats_sorted":[],"title_canon_sha256":"dbd28ac86209dacd591bce39acd597b5ad786a7ba692cbb65c4afe84cababaa8","abstract_canon_sha256":"50acf5d1e6047c0e1544d4e818bc0c0ff2f17754988a8fd6f02a8fb078dd263c"},"schema_version":"1.0"},"canonical_sha256":"e1779a168b67622206b2fa9ad8599c56ae012321aa19f3e89778badf855d19f4","source":{"kind":"arxiv","id":"1003.4580","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.4580","created_at":"2026-05-18T02:08:23Z"},{"alias_kind":"arxiv_version","alias_value":"1003.4580v2","created_at":"2026-05-18T02:08:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.4580","created_at":"2026-05-18T02:08:23Z"},{"alias_kind":"pith_short_12","alias_value":"4F3ZUFULM5RC","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"4F3ZUFULM5RCEBVS","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"4F3ZUFUL","created_at":"2026-05-18T12:26:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:4F3ZUFULM5RCEBVS7KNNQWM4K2","target":"record","payload":{"canonical_record":{"source":{"id":"1003.4580","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-03-24T06:11:53Z","cross_cats_sorted":[],"title_canon_sha256":"dbd28ac86209dacd591bce39acd597b5ad786a7ba692cbb65c4afe84cababaa8","abstract_canon_sha256":"50acf5d1e6047c0e1544d4e818bc0c0ff2f17754988a8fd6f02a8fb078dd263c"},"schema_version":"1.0"},"canonical_sha256":"e1779a168b67622206b2fa9ad8599c56ae012321aa19f3e89778badf855d19f4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:08:23.746571Z","signature_b64":"ypGQDdEsyD3KGvBUeMbFPEL9/lsEabimirOgv+aMoM8/CYew0IQy08VR42n4SRTSFyn+Xv7GxGrXGi5rGIgpBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e1779a168b67622206b2fa9ad8599c56ae012321aa19f3e89778badf855d19f4","last_reissued_at":"2026-05-18T02:08:23.745758Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:08:23.745758Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1003.4580","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":"2026-05-18T02:08:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FUSKjkDTs/QJQ2k18kkD/Omp2T5d7VzuE2CduCtl8ypVTVhj1Nqza0ysB6R8pHWtVe/XT0INWGJ4LgFcU7GzAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T21:31:35.611940Z"},"content_sha256":"ae9de4b38ed14fb94868ee8bffb7f0b3f295f456c63d028010e0f013a5e5e2e0","schema_version":"1.0","event_id":"sha256:ae9de4b38ed14fb94868ee8bffb7f0b3f295f456c63d028010e0f013a5e5e2e0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:4F3ZUFULM5RCEBVS7KNNQWM4K2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-frequency radio properties of sources in the Fermi-LAT 1-year Point Source Catalogue","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Elaine M. Sadler, Elizabeth K. Mahony, Marcella Massardi, Philip G. Edwards, Ronald D. Ekers, Tara Murphy","submitted_at":"2010-03-24T06:11:53Z","abstract_excerpt":"The high-frequency radio sky, like the gamma-ray sky surveyed by the Fermi satellite, is dominated by flat spectrum radio quasars and BL Lac objects at bright flux levels. To investigate the relationship between radio and gamma-ray emission in extragalactic sources, we have cross-matched the Australia Telescope 20 GHz survey catalog (AT20G) with the Fermi-LAT 1 year Point Source Catalog (1FGL). The 6.0 sr of sky covered by both catalogs ({\\delta} < 0\\circ, |b| > 1.\\circ 5) contains 5890 AT20G radio sources and 604 1FGL gamma-ray sources. The AT20G source positions are accurate to within ~1 arc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.4580","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":"2026-05-18T02:08:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bthCu3spdGYkhgyv01CIJ7Rt+7hGoIo0hwEX8DCCevSbhj2xmIvS3/MUGeMqu/adX0NKeWHiuNpr+bFR2y+VBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T21:31:35.612587Z"},"content_sha256":"7a7c4c346696f331df07ff992592990e9d24f2d894c2f3eb131434c8dbc06553","schema_version":"1.0","event_id":"sha256:7a7c4c346696f331df07ff992592990e9d24f2d894c2f3eb131434c8dbc06553"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4F3ZUFULM5RCEBVS7KNNQWM4K2/bundle.json","state_url":"https://pith.science/pith/4F3ZUFULM5RCEBVS7KNNQWM4K2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4F3ZUFULM5RCEBVS7KNNQWM4K2/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":"2026-06-05T21:31:35Z","links":{"resolver":"https://pith.science/pith/4F3ZUFULM5RCEBVS7KNNQWM4K2","bundle":"https://pith.science/pith/4F3ZUFULM5RCEBVS7KNNQWM4K2/bundle.json","state":"https://pith.science/pith/4F3ZUFULM5RCEBVS7KNNQWM4K2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4F3ZUFULM5RCEBVS7KNNQWM4K2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:4F3ZUFULM5RCEBVS7KNNQWM4K2","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":"50acf5d1e6047c0e1544d4e818bc0c0ff2f17754988a8fd6f02a8fb078dd263c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-03-24T06:11:53Z","title_canon_sha256":"dbd28ac86209dacd591bce39acd597b5ad786a7ba692cbb65c4afe84cababaa8"},"schema_version":"1.0","source":{"id":"1003.4580","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.4580","created_at":"2026-05-18T02:08:23Z"},{"alias_kind":"arxiv_version","alias_value":"1003.4580v2","created_at":"2026-05-18T02:08:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.4580","created_at":"2026-05-18T02:08:23Z"},{"alias_kind":"pith_short_12","alias_value":"4F3ZUFULM5RC","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"4F3ZUFULM5RCEBVS","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"4F3ZUFUL","created_at":"2026-05-18T12:26:03Z"}],"graph_snapshots":[{"event_id":"sha256:7a7c4c346696f331df07ff992592990e9d24f2d894c2f3eb131434c8dbc06553","target":"graph","created_at":"2026-05-18T02:08:23Z","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 high-frequency radio sky, like the gamma-ray sky surveyed by the Fermi satellite, is dominated by flat spectrum radio quasars and BL Lac objects at bright flux levels. To investigate the relationship between radio and gamma-ray emission in extragalactic sources, we have cross-matched the Australia Telescope 20 GHz survey catalog (AT20G) with the Fermi-LAT 1 year Point Source Catalog (1FGL). The 6.0 sr of sky covered by both catalogs ({\\delta} < 0\\circ, |b| > 1.\\circ 5) contains 5890 AT20G radio sources and 604 1FGL gamma-ray sources. The AT20G source positions are accurate to within ~1 arc","authors_text":"Elaine M. Sadler, Elizabeth K. Mahony, Marcella Massardi, Philip G. Edwards, Ronald D. Ekers, Tara Murphy","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-03-24T06:11:53Z","title":"High-frequency radio properties of sources in the Fermi-LAT 1-year Point Source Catalogue"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.4580","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:ae9de4b38ed14fb94868ee8bffb7f0b3f295f456c63d028010e0f013a5e5e2e0","target":"record","created_at":"2026-05-18T02:08:23Z","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":"50acf5d1e6047c0e1544d4e818bc0c0ff2f17754988a8fd6f02a8fb078dd263c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-03-24T06:11:53Z","title_canon_sha256":"dbd28ac86209dacd591bce39acd597b5ad786a7ba692cbb65c4afe84cababaa8"},"schema_version":"1.0","source":{"id":"1003.4580","kind":"arxiv","version":2}},"canonical_sha256":"e1779a168b67622206b2fa9ad8599c56ae012321aa19f3e89778badf855d19f4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e1779a168b67622206b2fa9ad8599c56ae012321aa19f3e89778badf855d19f4","first_computed_at":"2026-05-18T02:08:23.745758Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:08:23.745758Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ypGQDdEsyD3KGvBUeMbFPEL9/lsEabimirOgv+aMoM8/CYew0IQy08VR42n4SRTSFyn+Xv7GxGrXGi5rGIgpBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:08:23.746571Z","signed_message":"canonical_sha256_bytes"},"source_id":"1003.4580","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ae9de4b38ed14fb94868ee8bffb7f0b3f295f456c63d028010e0f013a5e5e2e0","sha256:7a7c4c346696f331df07ff992592990e9d24f2d894c2f3eb131434c8dbc06553"],"state_sha256":"e2b4c002692fa09a2d0a9a9541867564062bc15bb5a6cd0283a98a675791ff01"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w4SHg9cpLoZp58fiytDCz0iXvcaWFv+cP4seMjQK1fbayEb+B3q1IrgDyObblcKxP7gXhnoOx4kMNP0iM3kGAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T21:31:35.615702Z","bundle_sha256":"4972f38749afa1c31648c257ded597d5d42bcf2b0d8bbc611b91a19610afdc60"}}