{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:UDJLISVA6OTIKIJ5AOVEI2RYWW","short_pith_number":"pith:UDJLISVA","canonical_record":{"source":{"id":"1503.06800","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-03-23T20:00:31Z","cross_cats_sorted":[],"title_canon_sha256":"35d6122246909bdc2827e9a2f0f83e323fc27469f277c7d6b24aa260a0b4ac4a","abstract_canon_sha256":"4e861e6234fbe5526dcacad9a5cd894f3661e65030c03827bdbb86e61e37c061"},"schema_version":"1.0"},"canonical_sha256":"a0d2b44aa0f3a685213d03aa446a38b5a8487a9559a59d504185459cc4c6655c","source":{"kind":"arxiv","id":"1503.06800","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.06800","created_at":"2026-05-18T01:59:36Z"},{"alias_kind":"arxiv_version","alias_value":"1503.06800v1","created_at":"2026-05-18T01:59:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.06800","created_at":"2026-05-18T01:59:36Z"},{"alias_kind":"pith_short_12","alias_value":"UDJLISVA6OTI","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UDJLISVA6OTIKIJ5","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UDJLISVA","created_at":"2026-05-18T12:29:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:UDJLISVA6OTIKIJ5AOVEI2RYWW","target":"record","payload":{"canonical_record":{"source":{"id":"1503.06800","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-03-23T20:00:31Z","cross_cats_sorted":[],"title_canon_sha256":"35d6122246909bdc2827e9a2f0f83e323fc27469f277c7d6b24aa260a0b4ac4a","abstract_canon_sha256":"4e861e6234fbe5526dcacad9a5cd894f3661e65030c03827bdbb86e61e37c061"},"schema_version":"1.0"},"canonical_sha256":"a0d2b44aa0f3a685213d03aa446a38b5a8487a9559a59d504185459cc4c6655c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:59:36.975235Z","signature_b64":"ySsE4Xwb1sm7DBmmLi1Y2X54dJcnzOom8tqqqoDbmZTeMxfTxs4XjoDzu585hbOPRAh0T3LnDqtWsSLZlCUKBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a0d2b44aa0f3a685213d03aa446a38b5a8487a9559a59d504185459cc4c6655c","last_reissued_at":"2026-05-18T01:59:36.974580Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:59:36.974580Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1503.06800","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":"2026-05-18T01:59:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6qxdtZS+1Jjri3qg9mekqQGcrvQb26MJzyW5ruiCbT8xvH9PJCXvjWPARLOv2hatJ4IydelvrQzI4zPyJQjpDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T15:57:29.042443Z"},"content_sha256":"184e949211c0868f9d735c8065c9c9e80f15a6d264d025d876a255b62a0ea7f0","schema_version":"1.0","event_id":"sha256:184e949211c0868f9d735c8065c9c9e80f15a6d264d025d876a255b62a0ea7f0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:UDJLISVA6OTIKIJ5AOVEI2RYWW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Launching of Cold Clouds by Galaxy Outflows I: Hydrodynamic Interactions with Radiative Cooling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Evan Scannapieco, Marcus Br\\\"uggen","submitted_at":"2015-03-23T20:00:31Z","abstract_excerpt":"To better understand the nature of the multiphase material found in outflowing galaxies, we study the evolution of cold clouds embedded in flows of hot and fast material. Using a suite of adaptive-mesh refinement simulations that include radiative cooling, we investigate both cloud mass loss and cloud acceleration under the full range of conditions observed in galaxy outflows. The simulations are designed to track the cloud center of mass, enabling us to study the cloud evolution at long disruption times. For supersonic flows, a Mach cone forms around the cloud, which damps the Kelvin-Helmholt"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.06800","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":"2026-05-18T01:59:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BebI4tabsYdOHz4byGxfpdQ+s0Uv7e2URlayxzV6+9kEet/T/BTFH4EmHdhCiMKq3ES2VYpaccUkRdaI2TjQAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T15:57:29.043202Z"},"content_sha256":"2daa156f1220e5fa2b4b1bc0eeab2a2a84a0e0d539924dd0b72f44cd7f7a5798","schema_version":"1.0","event_id":"sha256:2daa156f1220e5fa2b4b1bc0eeab2a2a84a0e0d539924dd0b72f44cd7f7a5798"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UDJLISVA6OTIKIJ5AOVEI2RYWW/bundle.json","state_url":"https://pith.science/pith/UDJLISVA6OTIKIJ5AOVEI2RYWW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UDJLISVA6OTIKIJ5AOVEI2RYWW/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":"2026-05-30T15:57:29Z","links":{"resolver":"https://pith.science/pith/UDJLISVA6OTIKIJ5AOVEI2RYWW","bundle":"https://pith.science/pith/UDJLISVA6OTIKIJ5AOVEI2RYWW/bundle.json","state":"https://pith.science/pith/UDJLISVA6OTIKIJ5AOVEI2RYWW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UDJLISVA6OTIKIJ5AOVEI2RYWW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:UDJLISVA6OTIKIJ5AOVEI2RYWW","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":"4e861e6234fbe5526dcacad9a5cd894f3661e65030c03827bdbb86e61e37c061","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-03-23T20:00:31Z","title_canon_sha256":"35d6122246909bdc2827e9a2f0f83e323fc27469f277c7d6b24aa260a0b4ac4a"},"schema_version":"1.0","source":{"id":"1503.06800","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.06800","created_at":"2026-05-18T01:59:36Z"},{"alias_kind":"arxiv_version","alias_value":"1503.06800v1","created_at":"2026-05-18T01:59:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.06800","created_at":"2026-05-18T01:59:36Z"},{"alias_kind":"pith_short_12","alias_value":"UDJLISVA6OTI","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UDJLISVA6OTIKIJ5","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UDJLISVA","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:2daa156f1220e5fa2b4b1bc0eeab2a2a84a0e0d539924dd0b72f44cd7f7a5798","target":"graph","created_at":"2026-05-18T01:59:36Z","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":"To better understand the nature of the multiphase material found in outflowing galaxies, we study the evolution of cold clouds embedded in flows of hot and fast material. Using a suite of adaptive-mesh refinement simulations that include radiative cooling, we investigate both cloud mass loss and cloud acceleration under the full range of conditions observed in galaxy outflows. The simulations are designed to track the cloud center of mass, enabling us to study the cloud evolution at long disruption times. For supersonic flows, a Mach cone forms around the cloud, which damps the Kelvin-Helmholt","authors_text":"Evan Scannapieco, Marcus Br\\\"uggen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-03-23T20:00:31Z","title":"The Launching of Cold Clouds by Galaxy Outflows I: Hydrodynamic Interactions with Radiative Cooling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.06800","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":"sha256:184e949211c0868f9d735c8065c9c9e80f15a6d264d025d876a255b62a0ea7f0","target":"record","created_at":"2026-05-18T01:59:36Z","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":"4e861e6234fbe5526dcacad9a5cd894f3661e65030c03827bdbb86e61e37c061","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-03-23T20:00:31Z","title_canon_sha256":"35d6122246909bdc2827e9a2f0f83e323fc27469f277c7d6b24aa260a0b4ac4a"},"schema_version":"1.0","source":{"id":"1503.06800","kind":"arxiv","version":1}},"canonical_sha256":"a0d2b44aa0f3a685213d03aa446a38b5a8487a9559a59d504185459cc4c6655c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a0d2b44aa0f3a685213d03aa446a38b5a8487a9559a59d504185459cc4c6655c","first_computed_at":"2026-05-18T01:59:36.974580Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:36.974580Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ySsE4Xwb1sm7DBmmLi1Y2X54dJcnzOom8tqqqoDbmZTeMxfTxs4XjoDzu585hbOPRAh0T3LnDqtWsSLZlCUKBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:36.975235Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.06800","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:184e949211c0868f9d735c8065c9c9e80f15a6d264d025d876a255b62a0ea7f0","sha256:2daa156f1220e5fa2b4b1bc0eeab2a2a84a0e0d539924dd0b72f44cd7f7a5798"],"state_sha256":"a71b35a4b2301dc6c16dd65d436d92fca6c48b1ec6cac3003c00deb696e1175a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lTflNxjJ4BxMW9WVVFtmMS4XFngdcK/3TOv5oNdKIHs7TqHmMH+GHVpDcSyqNRUyrv1mMhKSGftRFm02Nq5ZCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T15:57:29.047384Z","bundle_sha256":"b24044b8014a1b2ba7f91297674cf0df276684cfd494fcd1629ddc6a8309ccff"}}