{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:PJCPJZCUE6IAHYPKFYREUJMO7W","short_pith_number":"pith:PJCPJZCU","canonical_record":{"source":{"id":"1412.3116","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-09T21:02:41Z","cross_cats_sorted":[],"title_canon_sha256":"e2a9ae6bbe775c121fe7a21bf19e96d02aa7a5f594aebb8b4ee749f682a21d42","abstract_canon_sha256":"11b3eb9f9e782c0c7ba8b949caed6bb155912e4bff6fa71d6eef2c76dcde3560"},"schema_version":"1.0"},"canonical_sha256":"7a44f4e454279003e1ea2e224a258efd8f6588457bbbaaa759e68a158382f2be","source":{"kind":"arxiv","id":"1412.3116","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.3116","created_at":"2026-05-18T01:41:20Z"},{"alias_kind":"arxiv_version","alias_value":"1412.3116v2","created_at":"2026-05-18T01:41:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.3116","created_at":"2026-05-18T01:41:20Z"},{"alias_kind":"pith_short_12","alias_value":"PJCPJZCUE6IA","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"PJCPJZCUE6IAHYPK","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"PJCPJZCU","created_at":"2026-05-18T12:28:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:PJCPJZCUE6IAHYPKFYREUJMO7W","target":"record","payload":{"canonical_record":{"source":{"id":"1412.3116","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-09T21:02:41Z","cross_cats_sorted":[],"title_canon_sha256":"e2a9ae6bbe775c121fe7a21bf19e96d02aa7a5f594aebb8b4ee749f682a21d42","abstract_canon_sha256":"11b3eb9f9e782c0c7ba8b949caed6bb155912e4bff6fa71d6eef2c76dcde3560"},"schema_version":"1.0"},"canonical_sha256":"7a44f4e454279003e1ea2e224a258efd8f6588457bbbaaa759e68a158382f2be","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:20.275154Z","signature_b64":"VX5B5VwdWzZmK1cKlxv01zv++OuE8GEbeB+ICgFDCAqKWZZ/UT5WJXXTbAXJ04G1osQfAgH4UgNEPti/k/ZzBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7a44f4e454279003e1ea2e224a258efd8f6588457bbbaaa759e68a158382f2be","last_reissued_at":"2026-05-18T01:41:20.274640Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:20.274640Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1412.3116","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":"2026-05-18T01:41:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vNoR2kDagKucOAK0//7qmzJI2gAe5mwdhCsVzc8fPuLC/qTmqEUxcfDiRNuYFA8ZdWoIZO8a5VfKKZbAwCUEAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T16:58:31.450015Z"},"content_sha256":"e452a896b58075cc8723ed4acaeb4f200b66242db053f194fd91544863d519e6","schema_version":"1.0","event_id":"sha256:e452a896b58075cc8723ed4acaeb4f200b66242db053f194fd91544863d519e6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:PJCPJZCUE6IAHYPKFYREUJMO7W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraining the Milky Way's Hot Gas Halo with OVII and OVII Emission Lines","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Joel N. Bregman, Matthew J. Miller","submitted_at":"2014-12-09T21:02:41Z","abstract_excerpt":"The Milky Way hosts a hot ($\\approx 2 \\times 10^6$ K), diffuse, gaseous halo based on detections of z = 0 OVII and OVIII absorption lines in quasar spectra and emission lines in blank-sky spectra. Here we improve constraints on the structure of the hot gas halo by fitting a radial model to a much larger sample of OVII and OVIII emission line measurements from XMM-Newton EPIC-MOS spectra compared to previous studies ($\\approx$ 650 sightlines). We assume a modified $\\beta$-model for the halo density distribution and a constant-density Local Bubble from which we calculate emission to compare with"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.3116","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":"2026-05-18T01:41:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"47PHC368UDe/UHaoFa7MT35tXYkjZtbUwdqFA5CVHC273Ibzoxe01ovbXZ2qem/UUgDaRcTP+l1Ham7dMDL4CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T16:58:31.450367Z"},"content_sha256":"4ac866c23cbdee593e43e68b1cd6e77ab4bb1530f3187710bf39c9de5aabc1b2","schema_version":"1.0","event_id":"sha256:4ac866c23cbdee593e43e68b1cd6e77ab4bb1530f3187710bf39c9de5aabc1b2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PJCPJZCUE6IAHYPKFYREUJMO7W/bundle.json","state_url":"https://pith.science/pith/PJCPJZCUE6IAHYPKFYREUJMO7W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PJCPJZCUE6IAHYPKFYREUJMO7W/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":"2026-06-28T16:58:31Z","links":{"resolver":"https://pith.science/pith/PJCPJZCUE6IAHYPKFYREUJMO7W","bundle":"https://pith.science/pith/PJCPJZCUE6IAHYPKFYREUJMO7W/bundle.json","state":"https://pith.science/pith/PJCPJZCUE6IAHYPKFYREUJMO7W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PJCPJZCUE6IAHYPKFYREUJMO7W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:PJCPJZCUE6IAHYPKFYREUJMO7W","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":"11b3eb9f9e782c0c7ba8b949caed6bb155912e4bff6fa71d6eef2c76dcde3560","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-09T21:02:41Z","title_canon_sha256":"e2a9ae6bbe775c121fe7a21bf19e96d02aa7a5f594aebb8b4ee749f682a21d42"},"schema_version":"1.0","source":{"id":"1412.3116","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.3116","created_at":"2026-05-18T01:41:20Z"},{"alias_kind":"arxiv_version","alias_value":"1412.3116v2","created_at":"2026-05-18T01:41:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.3116","created_at":"2026-05-18T01:41:20Z"},{"alias_kind":"pith_short_12","alias_value":"PJCPJZCUE6IA","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"PJCPJZCUE6IAHYPK","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"PJCPJZCU","created_at":"2026-05-18T12:28:43Z"}],"graph_snapshots":[{"event_id":"sha256:4ac866c23cbdee593e43e68b1cd6e77ab4bb1530f3187710bf39c9de5aabc1b2","target":"graph","created_at":"2026-05-18T01:41:20Z","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 Milky Way hosts a hot ($\\approx 2 \\times 10^6$ K), diffuse, gaseous halo based on detections of z = 0 OVII and OVIII absorption lines in quasar spectra and emission lines in blank-sky spectra. Here we improve constraints on the structure of the hot gas halo by fitting a radial model to a much larger sample of OVII and OVIII emission line measurements from XMM-Newton EPIC-MOS spectra compared to previous studies ($\\approx$ 650 sightlines). We assume a modified $\\beta$-model for the halo density distribution and a constant-density Local Bubble from which we calculate emission to compare with","authors_text":"Joel N. Bregman, Matthew J. Miller","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-09T21:02:41Z","title":"Constraining the Milky Way's Hot Gas Halo with OVII and OVII Emission Lines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.3116","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:e452a896b58075cc8723ed4acaeb4f200b66242db053f194fd91544863d519e6","target":"record","created_at":"2026-05-18T01:41:20Z","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":"11b3eb9f9e782c0c7ba8b949caed6bb155912e4bff6fa71d6eef2c76dcde3560","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-09T21:02:41Z","title_canon_sha256":"e2a9ae6bbe775c121fe7a21bf19e96d02aa7a5f594aebb8b4ee749f682a21d42"},"schema_version":"1.0","source":{"id":"1412.3116","kind":"arxiv","version":2}},"canonical_sha256":"7a44f4e454279003e1ea2e224a258efd8f6588457bbbaaa759e68a158382f2be","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7a44f4e454279003e1ea2e224a258efd8f6588457bbbaaa759e68a158382f2be","first_computed_at":"2026-05-18T01:41:20.274640Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:20.274640Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VX5B5VwdWzZmK1cKlxv01zv++OuE8GEbeB+ICgFDCAqKWZZ/UT5WJXXTbAXJ04G1osQfAgH4UgNEPti/k/ZzBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:20.275154Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.3116","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e452a896b58075cc8723ed4acaeb4f200b66242db053f194fd91544863d519e6","sha256:4ac866c23cbdee593e43e68b1cd6e77ab4bb1530f3187710bf39c9de5aabc1b2"],"state_sha256":"267762f671be3fd2b1f40cffaf6ec0abbe60a89c7747334658eb0d35802ad6ca"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d1STGN6Ste9jMDhXuAb49bREUQsGujq6loPUGlV/iPddwW/lWZjgjt/G42aK795YhzMp2EbJHTl5qznVIa6FDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T16:58:31.452330Z","bundle_sha256":"154357ad9f8b846de76e3a7fbfdedc73e7464be36ffb5172042c55c562a5982f"}}