{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:RXEXMI2EB6YYA7ELHZULBY5F7K","short_pith_number":"pith:RXEXMI2E","canonical_record":{"source":{"id":"1903.04635","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-03-11T22:20:51Z","cross_cats_sorted":[],"title_canon_sha256":"cbff397ec913d43367e6c5331415816ed8bde1b256bc476a98ef0407e1aa4c8b","abstract_canon_sha256":"cc752d6930ed7e7076705bd0d24203180422cf97e84e2b7ffc94a0accc9f005e"},"schema_version":"1.0"},"canonical_sha256":"8dc97623440fb1807c8b3e68b0e3a5faba892750fb6902dd586c090ba8bd08b1","source":{"kind":"arxiv","id":"1903.04635","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.04635","created_at":"2026-05-17T23:51:29Z"},{"alias_kind":"arxiv_version","alias_value":"1903.04635v1","created_at":"2026-05-17T23:51:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.04635","created_at":"2026-05-17T23:51:29Z"},{"alias_kind":"pith_short_12","alias_value":"RXEXMI2EB6YY","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"RXEXMI2EB6YYA7EL","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"RXEXMI2E","created_at":"2026-05-18T12:33:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:RXEXMI2EB6YYA7ELHZULBY5F7K","target":"record","payload":{"canonical_record":{"source":{"id":"1903.04635","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-03-11T22:20:51Z","cross_cats_sorted":[],"title_canon_sha256":"cbff397ec913d43367e6c5331415816ed8bde1b256bc476a98ef0407e1aa4c8b","abstract_canon_sha256":"cc752d6930ed7e7076705bd0d24203180422cf97e84e2b7ffc94a0accc9f005e"},"schema_version":"1.0"},"canonical_sha256":"8dc97623440fb1807c8b3e68b0e3a5faba892750fb6902dd586c090ba8bd08b1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:51:29.081889Z","signature_b64":"e3MApF9dPzRlmhfq7y7FLwgeAKE+ZAo8eyct67S2BdNBinkBzdztZwZsO1ML01MTXcEXapolKhgRFmyrl9QmCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8dc97623440fb1807c8b3e68b0e3a5faba892750fb6902dd586c090ba8bd08b1","last_reissued_at":"2026-05-17T23:51:29.081466Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:51:29.081466Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.04635","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":"2026-05-17T23:51:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gWzI0IVI2NLoDaauYqcA+nZ1FJp3aS+a5M1giuaaEdBdZLEzeQ1iPkXhyUgIe0ICizln4vuMhQPNNivyBtLkCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T13:38:11.469776Z"},"content_sha256":"fa4ea889b158f60e4ff4499fb2f06465887c5121398b2834c253965bf7079558","schema_version":"1.0","event_id":"sha256:fa4ea889b158f60e4ff4499fb2f06465887c5121398b2834c253965bf7079558"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:RXEXMI2EB6YYA7ELHZULBY5F7K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The warm and dense Galaxy - tracing the formation of dense cloud structures out to the Galactic Center","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alvaro Hacar, Craig Kulesa, Dario Colombo, Doug Johnstone, Frederic Schuller, Henrik Beuther, Jennifer Hatchell, Jens Kauffmann, Juan-Pablo Perez-Beaupuits, Juan Soler, Pamela Klaassen, Sarah Sadavoy, Stuart Lumsden, Thomas Stanke","submitted_at":"2019-03-11T22:20:51Z","abstract_excerpt":"The past two decades have seen extensive surveys of the far-infrared to submillimeter continuum emission in the plane of our Galaxy. We line out prospects for the coming decade for corresponding molecular and atomic line surveys which are needed to fully understand the formation of the dense structures that give birth to clusters and stars out of the diffuse interstellar medium. We propose to work towards Galaxy wide surveys in mid-J CO lines to trace shocks from colliding clouds, Galaxy-wide surveys for atomic Carbon lines in order to get a detailed understanding of the relation of atomic and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.04635","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":"2026-05-17T23:51:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3nQ0gkvBz8gFvvhuoGyXv9v2uvdKWkduTQBuKNfFZHD9fR82yPOY0Ou/mSEnLS1D2b3GilgXlBzzrxJI0ADpCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T13:38:11.470123Z"},"content_sha256":"656fbd862066ea4d5a17ae6f3daa83e8d57269d19ffde2df279ee60172fae4d8","schema_version":"1.0","event_id":"sha256:656fbd862066ea4d5a17ae6f3daa83e8d57269d19ffde2df279ee60172fae4d8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RXEXMI2EB6YYA7ELHZULBY5F7K/bundle.json","state_url":"https://pith.science/pith/RXEXMI2EB6YYA7ELHZULBY5F7K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RXEXMI2EB6YYA7ELHZULBY5F7K/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":"2026-05-20T13:38:11Z","links":{"resolver":"https://pith.science/pith/RXEXMI2EB6YYA7ELHZULBY5F7K","bundle":"https://pith.science/pith/RXEXMI2EB6YYA7ELHZULBY5F7K/bundle.json","state":"https://pith.science/pith/RXEXMI2EB6YYA7ELHZULBY5F7K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RXEXMI2EB6YYA7ELHZULBY5F7K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:RXEXMI2EB6YYA7ELHZULBY5F7K","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":"cc752d6930ed7e7076705bd0d24203180422cf97e84e2b7ffc94a0accc9f005e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-03-11T22:20:51Z","title_canon_sha256":"cbff397ec913d43367e6c5331415816ed8bde1b256bc476a98ef0407e1aa4c8b"},"schema_version":"1.0","source":{"id":"1903.04635","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.04635","created_at":"2026-05-17T23:51:29Z"},{"alias_kind":"arxiv_version","alias_value":"1903.04635v1","created_at":"2026-05-17T23:51:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.04635","created_at":"2026-05-17T23:51:29Z"},{"alias_kind":"pith_short_12","alias_value":"RXEXMI2EB6YY","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"RXEXMI2EB6YYA7EL","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"RXEXMI2E","created_at":"2026-05-18T12:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:656fbd862066ea4d5a17ae6f3daa83e8d57269d19ffde2df279ee60172fae4d8","target":"graph","created_at":"2026-05-17T23:51:29Z","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 past two decades have seen extensive surveys of the far-infrared to submillimeter continuum emission in the plane of our Galaxy. We line out prospects for the coming decade for corresponding molecular and atomic line surveys which are needed to fully understand the formation of the dense structures that give birth to clusters and stars out of the diffuse interstellar medium. We propose to work towards Galaxy wide surveys in mid-J CO lines to trace shocks from colliding clouds, Galaxy-wide surveys for atomic Carbon lines in order to get a detailed understanding of the relation of atomic and","authors_text":"Alvaro Hacar, Craig Kulesa, Dario Colombo, Doug Johnstone, Frederic Schuller, Henrik Beuther, Jennifer Hatchell, Jens Kauffmann, Juan-Pablo Perez-Beaupuits, Juan Soler, Pamela Klaassen, Sarah Sadavoy, Stuart Lumsden, Thomas Stanke","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-03-11T22:20:51Z","title":"The warm and dense Galaxy - tracing the formation of dense cloud structures out to the Galactic Center"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.04635","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:fa4ea889b158f60e4ff4499fb2f06465887c5121398b2834c253965bf7079558","target":"record","created_at":"2026-05-17T23:51:29Z","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":"cc752d6930ed7e7076705bd0d24203180422cf97e84e2b7ffc94a0accc9f005e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-03-11T22:20:51Z","title_canon_sha256":"cbff397ec913d43367e6c5331415816ed8bde1b256bc476a98ef0407e1aa4c8b"},"schema_version":"1.0","source":{"id":"1903.04635","kind":"arxiv","version":1}},"canonical_sha256":"8dc97623440fb1807c8b3e68b0e3a5faba892750fb6902dd586c090ba8bd08b1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8dc97623440fb1807c8b3e68b0e3a5faba892750fb6902dd586c090ba8bd08b1","first_computed_at":"2026-05-17T23:51:29.081466Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:51:29.081466Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"e3MApF9dPzRlmhfq7y7FLwgeAKE+ZAo8eyct67S2BdNBinkBzdztZwZsO1ML01MTXcEXapolKhgRFmyrl9QmCg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:51:29.081889Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.04635","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fa4ea889b158f60e4ff4499fb2f06465887c5121398b2834c253965bf7079558","sha256:656fbd862066ea4d5a17ae6f3daa83e8d57269d19ffde2df279ee60172fae4d8"],"state_sha256":"585a35eb4215ee2db68c5978ca1db272d5e135701451f4c85fbf30711bcacf96"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/5JTQFs67XcnWR5NdPwezTjrmYU24BsJa83iNyPrSaoIJuv6G1HUxxy09L87MlRXIXLhex2GZNrEbA51lgo8Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T13:38:11.472422Z","bundle_sha256":"f1cd91a7319bf5f56e41f1cdaea3f1bddf126cff1e26d588773482c812b78678"}}