{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:V5PVF5LH4EWAWB46DE5DXFHS6W","short_pith_number":"pith:V5PVF5LH","canonical_record":{"source":{"id":"1301.1345","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-01-07T21:00:10Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"6e1345d6ff97a532650a9f90aad25422969b8641c71c418cab313172effd6ef1","abstract_canon_sha256":"6bc1dd8cd75e2d1b7c9d8d68ca48c588fe41ea3684c24fd7b9b6fd328ce25a17"},"schema_version":"1.0"},"canonical_sha256":"af5f52f567e12c0b079e193a3b94f2f580822472080bd016ce23c86ccd11c2f8","source":{"kind":"arxiv","id":"1301.1345","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.1345","created_at":"2026-05-18T01:52:20Z"},{"alias_kind":"arxiv_version","alias_value":"1301.1345v1","created_at":"2026-05-18T01:52:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.1345","created_at":"2026-05-18T01:52:20Z"},{"alias_kind":"pith_short_12","alias_value":"V5PVF5LH4EWA","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"V5PVF5LH4EWAWB46","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"V5PVF5LH","created_at":"2026-05-18T12:28:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:V5PVF5LH4EWAWB46DE5DXFHS6W","target":"record","payload":{"canonical_record":{"source":{"id":"1301.1345","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-01-07T21:00:10Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"6e1345d6ff97a532650a9f90aad25422969b8641c71c418cab313172effd6ef1","abstract_canon_sha256":"6bc1dd8cd75e2d1b7c9d8d68ca48c588fe41ea3684c24fd7b9b6fd328ce25a17"},"schema_version":"1.0"},"canonical_sha256":"af5f52f567e12c0b079e193a3b94f2f580822472080bd016ce23c86ccd11c2f8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:52:20.876772Z","signature_b64":"obM8zyJuVGZtmE1YGq5Edj44WV0cpiThGa/Gxk0j9QW3e+C9GONInlx92an1nrjBc3rLtMT26+nt40AbDujkDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"af5f52f567e12c0b079e193a3b94f2f580822472080bd016ce23c86ccd11c2f8","last_reissued_at":"2026-05-18T01:52:20.876417Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:52:20.876417Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.1345","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":"2026-05-18T01:52:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aE1cPz0cCfdKGnq6510tMtgie1hCSban6O35Kuyxt1T0oN1rBzVtuTAzTIIMKjmJlOMVnSJiuTb8V2BjfikAAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:18:35.479783Z"},"content_sha256":"ed9fb735bfe190e0f3b46c3d47dc26a29c8defaf68c3ac2f0586bd0f3f04cbfd","schema_version":"1.0","event_id":"sha256:ed9fb735bfe190e0f3b46c3d47dc26a29c8defaf68c3ac2f0586bd0f3f04cbfd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:V5PVF5LH4EWAWB46DE5DXFHS6W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Milky Way halo as a QSO absorption-line system. New results from an HST/STIS absorption-line catalogue of Galactic high-velocity clouds","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Jane C. Charlton, Joseph R. Masiero, Peter Herenz, Philipp Richter","submitted_at":"2013-01-07T21:00:10Z","abstract_excerpt":"We use archival UV absorption-line data from HST/STIS to statistically analyse the absorption characteristics of the high-velocity clouds (HVCs) in the Galactic halo towards more than 40 extragalactic background sources. We determine absorption covering fractions of low- and intermediate ions (OI, CII, SiIII, MgII, FeII, SiIII, CIV, and SiIV) in the range fc = 0.20 - 0.70. For detailed analysis we concentrate on SiII absorption components in HVCs, for which we investigate the distribution of column densities, b-values, and radial velocities. Combining information for SiII and MgII, and using a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.1345","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":"2026-05-18T01:52:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4YYed7dOFVI7ycrIH8uPcFzBbfRpTBUtyBXAI2jvJlB4HThWzAsBRdkelvWXM22YchavzNPyIi2gmzS0azweDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:18:35.480332Z"},"content_sha256":"ea473f61532ca1114b496a2d608271ecfb49f7680a877e62a5404cc4dd9a48e6","schema_version":"1.0","event_id":"sha256:ea473f61532ca1114b496a2d608271ecfb49f7680a877e62a5404cc4dd9a48e6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V5PVF5LH4EWAWB46DE5DXFHS6W/bundle.json","state_url":"https://pith.science/pith/V5PVF5LH4EWAWB46DE5DXFHS6W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V5PVF5LH4EWAWB46DE5DXFHS6W/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":"2026-05-26T21:18:35Z","links":{"resolver":"https://pith.science/pith/V5PVF5LH4EWAWB46DE5DXFHS6W","bundle":"https://pith.science/pith/V5PVF5LH4EWAWB46DE5DXFHS6W/bundle.json","state":"https://pith.science/pith/V5PVF5LH4EWAWB46DE5DXFHS6W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V5PVF5LH4EWAWB46DE5DXFHS6W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:V5PVF5LH4EWAWB46DE5DXFHS6W","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":"6bc1dd8cd75e2d1b7c9d8d68ca48c588fe41ea3684c24fd7b9b6fd328ce25a17","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-01-07T21:00:10Z","title_canon_sha256":"6e1345d6ff97a532650a9f90aad25422969b8641c71c418cab313172effd6ef1"},"schema_version":"1.0","source":{"id":"1301.1345","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.1345","created_at":"2026-05-18T01:52:20Z"},{"alias_kind":"arxiv_version","alias_value":"1301.1345v1","created_at":"2026-05-18T01:52:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.1345","created_at":"2026-05-18T01:52:20Z"},{"alias_kind":"pith_short_12","alias_value":"V5PVF5LH4EWA","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"V5PVF5LH4EWAWB46","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"V5PVF5LH","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:ea473f61532ca1114b496a2d608271ecfb49f7680a877e62a5404cc4dd9a48e6","target":"graph","created_at":"2026-05-18T01:52:20Z","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":"We use archival UV absorption-line data from HST/STIS to statistically analyse the absorption characteristics of the high-velocity clouds (HVCs) in the Galactic halo towards more than 40 extragalactic background sources. We determine absorption covering fractions of low- and intermediate ions (OI, CII, SiIII, MgII, FeII, SiIII, CIV, and SiIV) in the range fc = 0.20 - 0.70. For detailed analysis we concentrate on SiII absorption components in HVCs, for which we investigate the distribution of column densities, b-values, and radial velocities. Combining information for SiII and MgII, and using a","authors_text":"Jane C. Charlton, Joseph R. Masiero, Peter Herenz, Philipp Richter","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-01-07T21:00:10Z","title":"The Milky Way halo as a QSO absorption-line system. New results from an HST/STIS absorption-line catalogue of Galactic high-velocity clouds"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.1345","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:ed9fb735bfe190e0f3b46c3d47dc26a29c8defaf68c3ac2f0586bd0f3f04cbfd","target":"record","created_at":"2026-05-18T01:52:20Z","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":"6bc1dd8cd75e2d1b7c9d8d68ca48c588fe41ea3684c24fd7b9b6fd328ce25a17","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-01-07T21:00:10Z","title_canon_sha256":"6e1345d6ff97a532650a9f90aad25422969b8641c71c418cab313172effd6ef1"},"schema_version":"1.0","source":{"id":"1301.1345","kind":"arxiv","version":1}},"canonical_sha256":"af5f52f567e12c0b079e193a3b94f2f580822472080bd016ce23c86ccd11c2f8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"af5f52f567e12c0b079e193a3b94f2f580822472080bd016ce23c86ccd11c2f8","first_computed_at":"2026-05-18T01:52:20.876417Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:52:20.876417Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"obM8zyJuVGZtmE1YGq5Edj44WV0cpiThGa/Gxk0j9QW3e+C9GONInlx92an1nrjBc3rLtMT26+nt40AbDujkDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:52:20.876772Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.1345","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ed9fb735bfe190e0f3b46c3d47dc26a29c8defaf68c3ac2f0586bd0f3f04cbfd","sha256:ea473f61532ca1114b496a2d608271ecfb49f7680a877e62a5404cc4dd9a48e6"],"state_sha256":"fddd11d84bf04e0618526aaa8520df124b9a8da888094625f55d6d8c805926a3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QI5/muZoIDgCBwlSmppSkribiJvIAAC9C0omxQFB3734d7HBm4m3LvPEpVFflVDku8MM4VDSd7ic9QVptCF5Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T21:18:35.484252Z","bundle_sha256":"60a547f3a725382f69d874864e1163d1094c8eb94d7d1d7d91766c835e744bc3"}}