{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:WUD7Q6JRRB53QGGCFHFIDCBS3Q","short_pith_number":"pith:WUD7Q6JR","canonical_record":{"source":{"id":"1512.07047","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-12-22T12:15:11Z","cross_cats_sorted":[],"title_canon_sha256":"1835845ab5a48862d6d849053b3f69ce0aebeb29538e88e61bf621e4a4dafced","abstract_canon_sha256":"23c248cc22dbb93e15ad9e4461c2ccbf4282d89a3da5010fa4fc579d776438bf"},"schema_version":"1.0"},"canonical_sha256":"b507f87931887bb818c229ca818832dc1481646e4e3990d50f9d765ca5cb7e20","source":{"kind":"arxiv","id":"1512.07047","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.07047","created_at":"2026-05-18T01:20:32Z"},{"alias_kind":"arxiv_version","alias_value":"1512.07047v1","created_at":"2026-05-18T01:20:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.07047","created_at":"2026-05-18T01:20:32Z"},{"alias_kind":"pith_short_12","alias_value":"WUD7Q6JRRB53","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"WUD7Q6JRRB53QGGC","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"WUD7Q6JR","created_at":"2026-05-18T12:29:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:WUD7Q6JRRB53QGGCFHFIDCBS3Q","target":"record","payload":{"canonical_record":{"source":{"id":"1512.07047","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-12-22T12:15:11Z","cross_cats_sorted":[],"title_canon_sha256":"1835845ab5a48862d6d849053b3f69ce0aebeb29538e88e61bf621e4a4dafced","abstract_canon_sha256":"23c248cc22dbb93e15ad9e4461c2ccbf4282d89a3da5010fa4fc579d776438bf"},"schema_version":"1.0"},"canonical_sha256":"b507f87931887bb818c229ca818832dc1481646e4e3990d50f9d765ca5cb7e20","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:20:32.576208Z","signature_b64":"dv57xXqu+vdd9J9y2IRRFUmK9G7Dl66/yiipqv1iVr7AjR6iRvr4HzeW0B0phgR3pw1oOGCCSDtF9jtwSQEHAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b507f87931887bb818c229ca818832dc1481646e4e3990d50f9d765ca5cb7e20","last_reissued_at":"2026-05-18T01:20:32.575740Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:20:32.575740Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1512.07047","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":"2026-05-18T01:20:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IYHj0G7vToKnLnSXAI1Kwq8y13GOtN0IOdFIHJIZX/Q6nDIZoS5CvOQYu3xEoVHifLT0Es3B5K79HGIGchenDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T02:25:04.758876Z"},"content_sha256":"58f7a0fdebdd3b5e07a2ff9111c477cfb36af2197c4ffdd9f1aaa2768b507631","schema_version":"1.0","event_id":"sha256:58f7a0fdebdd3b5e07a2ff9111c477cfb36af2197c4ffdd9f1aaa2768b507631"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:WUD7Q6JRRB53QGGCFHFIDCBS3Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Correlation of HI shells and CO clumps in the outer Milky Way","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Jan Palous, Sona Ehlerova","submitted_at":"2015-12-22T12:15:11Z","abstract_excerpt":"HI shells, which may be formed by the activity of young and massive stars, or connected to energy released by interactions of high-velocity clouds with the galactic disk, may be partly responsible both for the destruction of CO clouds and for the creation of others. It is not known which effect prevails. We study the relation between HI shells and CO in the outer parts of the Milky Way, using HI and CO surveys and a catalogue of previously identified HI shells. For each individual location, the distance to the nearest HI shell is calculated and it is specified whether it lies in the interior o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.07047","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":"2026-05-18T01:20:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yC4DxaQYd1p3eAJwDOP0+D17bABABu+CHPehYRwQ+jPY/3iM4XklBAnz3CWF+4cI6D013+7qcyAsTDLgdoihCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T02:25:04.759524Z"},"content_sha256":"66535564d703d9c7e3d408269b98da485ceb9c00e411a2b40f4d41bfcf5a6867","schema_version":"1.0","event_id":"sha256:66535564d703d9c7e3d408269b98da485ceb9c00e411a2b40f4d41bfcf5a6867"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WUD7Q6JRRB53QGGCFHFIDCBS3Q/bundle.json","state_url":"https://pith.science/pith/WUD7Q6JRRB53QGGCFHFIDCBS3Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WUD7Q6JRRB53QGGCFHFIDCBS3Q/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":"2026-06-05T02:25:04Z","links":{"resolver":"https://pith.science/pith/WUD7Q6JRRB53QGGCFHFIDCBS3Q","bundle":"https://pith.science/pith/WUD7Q6JRRB53QGGCFHFIDCBS3Q/bundle.json","state":"https://pith.science/pith/WUD7Q6JRRB53QGGCFHFIDCBS3Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WUD7Q6JRRB53QGGCFHFIDCBS3Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:WUD7Q6JRRB53QGGCFHFIDCBS3Q","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":"23c248cc22dbb93e15ad9e4461c2ccbf4282d89a3da5010fa4fc579d776438bf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-12-22T12:15:11Z","title_canon_sha256":"1835845ab5a48862d6d849053b3f69ce0aebeb29538e88e61bf621e4a4dafced"},"schema_version":"1.0","source":{"id":"1512.07047","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.07047","created_at":"2026-05-18T01:20:32Z"},{"alias_kind":"arxiv_version","alias_value":"1512.07047v1","created_at":"2026-05-18T01:20:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.07047","created_at":"2026-05-18T01:20:32Z"},{"alias_kind":"pith_short_12","alias_value":"WUD7Q6JRRB53","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"WUD7Q6JRRB53QGGC","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"WUD7Q6JR","created_at":"2026-05-18T12:29:47Z"}],"graph_snapshots":[{"event_id":"sha256:66535564d703d9c7e3d408269b98da485ceb9c00e411a2b40f4d41bfcf5a6867","target":"graph","created_at":"2026-05-18T01:20:32Z","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":"HI shells, which may be formed by the activity of young and massive stars, or connected to energy released by interactions of high-velocity clouds with the galactic disk, may be partly responsible both for the destruction of CO clouds and for the creation of others. It is not known which effect prevails. We study the relation between HI shells and CO in the outer parts of the Milky Way, using HI and CO surveys and a catalogue of previously identified HI shells. For each individual location, the distance to the nearest HI shell is calculated and it is specified whether it lies in the interior o","authors_text":"Jan Palous, Sona Ehlerova","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-12-22T12:15:11Z","title":"Correlation of HI shells and CO clumps in the outer Milky Way"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.07047","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":"sha256:58f7a0fdebdd3b5e07a2ff9111c477cfb36af2197c4ffdd9f1aaa2768b507631","target":"record","created_at":"2026-05-18T01:20:32Z","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":"23c248cc22dbb93e15ad9e4461c2ccbf4282d89a3da5010fa4fc579d776438bf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-12-22T12:15:11Z","title_canon_sha256":"1835845ab5a48862d6d849053b3f69ce0aebeb29538e88e61bf621e4a4dafced"},"schema_version":"1.0","source":{"id":"1512.07047","kind":"arxiv","version":1}},"canonical_sha256":"b507f87931887bb818c229ca818832dc1481646e4e3990d50f9d765ca5cb7e20","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b507f87931887bb818c229ca818832dc1481646e4e3990d50f9d765ca5cb7e20","first_computed_at":"2026-05-18T01:20:32.575740Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:20:32.575740Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dv57xXqu+vdd9J9y2IRRFUmK9G7Dl66/yiipqv1iVr7AjR6iRvr4HzeW0B0phgR3pw1oOGCCSDtF9jtwSQEHAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:20:32.576208Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.07047","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:58f7a0fdebdd3b5e07a2ff9111c477cfb36af2197c4ffdd9f1aaa2768b507631","sha256:66535564d703d9c7e3d408269b98da485ceb9c00e411a2b40f4d41bfcf5a6867"],"state_sha256":"a4c4f72af0830d4b86ea559e7016663bcb90e2740481dfb8409755b88fc9c400"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lzNte1yUkEo7U7I+PdzhlNss/DRQiG6O/3MtwDDvzJ2+lfCchN8pLNRMUovG9ipUnVZmB83Lbj3vd7t+PLV/CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T02:25:04.762414Z","bundle_sha256":"8587eea74d052456b0a65f12170e70e30701ee0d7c99befac18ee538f55419d7"}}