{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:455SYKIAJKSQQV6QIX6BP2SH2J","short_pith_number":"pith:455SYKIA","canonical_record":{"source":{"id":"1202.4445","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-02-20T20:42:18Z","cross_cats_sorted":[],"title_canon_sha256":"4edf7f4a6d11bf1c96f14db8038d94b25e56368d766ae4dc78a3a5a81ebbc0b2","abstract_canon_sha256":"ea2f4b91c095b971978185689385583775df9b684e36315528da2eeb67864b6b"},"schema_version":"1.0"},"canonical_sha256":"e77b2c29004aa50857d045fc17ea47d26e65fa644e622f2a83f14f80f7a44a2e","source":{"kind":"arxiv","id":"1202.4445","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.4445","created_at":"2026-05-18T01:58:23Z"},{"alias_kind":"arxiv_version","alias_value":"1202.4445v1","created_at":"2026-05-18T01:58:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.4445","created_at":"2026-05-18T01:58:23Z"},{"alias_kind":"pith_short_12","alias_value":"455SYKIAJKSQ","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"455SYKIAJKSQQV6Q","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"455SYKIA","created_at":"2026-05-18T12:26:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:455SYKIAJKSQQV6QIX6BP2SH2J","target":"record","payload":{"canonical_record":{"source":{"id":"1202.4445","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-02-20T20:42:18Z","cross_cats_sorted":[],"title_canon_sha256":"4edf7f4a6d11bf1c96f14db8038d94b25e56368d766ae4dc78a3a5a81ebbc0b2","abstract_canon_sha256":"ea2f4b91c095b971978185689385583775df9b684e36315528da2eeb67864b6b"},"schema_version":"1.0"},"canonical_sha256":"e77b2c29004aa50857d045fc17ea47d26e65fa644e622f2a83f14f80f7a44a2e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:23.312207Z","signature_b64":"yTvQChIhkv1A7mcCLQh53R50fGo+NOqZBDH5t63243PQZF6VeuXGOoueRL5FqParsAKddah4JiN9Z9N9ZoXtBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e77b2c29004aa50857d045fc17ea47d26e65fa644e622f2a83f14f80f7a44a2e","last_reissued_at":"2026-05-18T01:58:23.311582Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:23.311582Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.4445","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":"2026-05-18T01:58:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OIKzU4VoW/xKO60tCHIeP6j1zQ8/czEhiIZu4ldQhAbV7wGj/2gpolca1N5APTg0RegNosGirblUmhogj/63Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T22:23:32.080140Z"},"content_sha256":"a6590590ce693b88c00b40d2ccd51a30b9f10c0407e96da28f0019ee1d45a0c0","schema_version":"1.0","event_id":"sha256:a6590590ce693b88c00b40d2ccd51a30b9f10c0407e96da28f0019ee1d45a0c0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:455SYKIAJKSQQV6QIX6BP2SH2J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First Science Observations with SOFIA/FORCAST: Properties of Intermediate-Luminosity Protostars and Circumstellar Disks in OMC-2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Amelia Stutz, Babar Ali, Charles P. Henderson, Enrique Macias, George E. Gull, Gordon Stacey, Ian S. Remming, James M. De Buizer, Joseph D. Adams, Justin Schoenwald, Luke D. Keller, Mark R. Morris, Mayra Osorio, Nuria Calvet, Paola D'Alessio, Ralph Y. Shuping, S. Thomas Megeath, Terry L. Herter, Thomas Stanke, William J. Fischer, William Vacca","submitted_at":"2012-02-20T20:42:18Z","abstract_excerpt":"We examine eight young stellar objects in the OMC-2 star forming region based on observations from the SOFIA/FORCAST early science phase, the Spitzer Space Telescope, the Herschel Space Observatory, 2MASS, APEX, and other results in the literature. We show the spectral energy distributions of these objects from near-infrared to millimeter wavelengths, and compare the SEDs with those of sheet collapse models of protostars and circumstellar disks. Four of the objects can be modelled as protostars with infalling envelopes, two as young stars surrounded by disks, and the remaining two objects have"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.4445","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":"2026-05-18T01:58:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z0jNJ2yZS97b5VRhm1Qfko/OjMFw9QvV01rFWl1H1KBBeP5YLlMz2xhc2pwReUtyrkFflWy5Otb4YhpGJsSQBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T22:23:32.080870Z"},"content_sha256":"6de6eb4e30a7cdc356ef43d0a14b098795d507fb20f84a96ea9a516097b81039","schema_version":"1.0","event_id":"sha256:6de6eb4e30a7cdc356ef43d0a14b098795d507fb20f84a96ea9a516097b81039"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/455SYKIAJKSQQV6QIX6BP2SH2J/bundle.json","state_url":"https://pith.science/pith/455SYKIAJKSQQV6QIX6BP2SH2J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/455SYKIAJKSQQV6QIX6BP2SH2J/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":"2026-05-24T22:23:32Z","links":{"resolver":"https://pith.science/pith/455SYKIAJKSQQV6QIX6BP2SH2J","bundle":"https://pith.science/pith/455SYKIAJKSQQV6QIX6BP2SH2J/bundle.json","state":"https://pith.science/pith/455SYKIAJKSQQV6QIX6BP2SH2J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/455SYKIAJKSQQV6QIX6BP2SH2J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:455SYKIAJKSQQV6QIX6BP2SH2J","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":"ea2f4b91c095b971978185689385583775df9b684e36315528da2eeb67864b6b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-02-20T20:42:18Z","title_canon_sha256":"4edf7f4a6d11bf1c96f14db8038d94b25e56368d766ae4dc78a3a5a81ebbc0b2"},"schema_version":"1.0","source":{"id":"1202.4445","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.4445","created_at":"2026-05-18T01:58:23Z"},{"alias_kind":"arxiv_version","alias_value":"1202.4445v1","created_at":"2026-05-18T01:58:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.4445","created_at":"2026-05-18T01:58:23Z"},{"alias_kind":"pith_short_12","alias_value":"455SYKIAJKSQ","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"455SYKIAJKSQQV6Q","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"455SYKIA","created_at":"2026-05-18T12:26:53Z"}],"graph_snapshots":[{"event_id":"sha256:6de6eb4e30a7cdc356ef43d0a14b098795d507fb20f84a96ea9a516097b81039","target":"graph","created_at":"2026-05-18T01:58:23Z","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 examine eight young stellar objects in the OMC-2 star forming region based on observations from the SOFIA/FORCAST early science phase, the Spitzer Space Telescope, the Herschel Space Observatory, 2MASS, APEX, and other results in the literature. We show the spectral energy distributions of these objects from near-infrared to millimeter wavelengths, and compare the SEDs with those of sheet collapse models of protostars and circumstellar disks. Four of the objects can be modelled as protostars with infalling envelopes, two as young stars surrounded by disks, and the remaining two objects have","authors_text":"Amelia Stutz, Babar Ali, Charles P. Henderson, Enrique Macias, George E. Gull, Gordon Stacey, Ian S. Remming, James M. De Buizer, Joseph D. Adams, Justin Schoenwald, Luke D. Keller, Mark R. Morris, Mayra Osorio, Nuria Calvet, Paola D'Alessio, Ralph Y. Shuping, S. Thomas Megeath, Terry L. Herter, Thomas Stanke, William J. Fischer, William Vacca","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-02-20T20:42:18Z","title":"First Science Observations with SOFIA/FORCAST: Properties of Intermediate-Luminosity Protostars and Circumstellar Disks in OMC-2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.4445","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:a6590590ce693b88c00b40d2ccd51a30b9f10c0407e96da28f0019ee1d45a0c0","target":"record","created_at":"2026-05-18T01:58:23Z","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":"ea2f4b91c095b971978185689385583775df9b684e36315528da2eeb67864b6b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-02-20T20:42:18Z","title_canon_sha256":"4edf7f4a6d11bf1c96f14db8038d94b25e56368d766ae4dc78a3a5a81ebbc0b2"},"schema_version":"1.0","source":{"id":"1202.4445","kind":"arxiv","version":1}},"canonical_sha256":"e77b2c29004aa50857d045fc17ea47d26e65fa644e622f2a83f14f80f7a44a2e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e77b2c29004aa50857d045fc17ea47d26e65fa644e622f2a83f14f80f7a44a2e","first_computed_at":"2026-05-18T01:58:23.311582Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:23.311582Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yTvQChIhkv1A7mcCLQh53R50fGo+NOqZBDH5t63243PQZF6VeuXGOoueRL5FqParsAKddah4JiN9Z9N9ZoXtBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:23.312207Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.4445","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a6590590ce693b88c00b40d2ccd51a30b9f10c0407e96da28f0019ee1d45a0c0","sha256:6de6eb4e30a7cdc356ef43d0a14b098795d507fb20f84a96ea9a516097b81039"],"state_sha256":"cc9bf0b15db71b9b54150d3459e9f025c7cf0f87bcd6a094f229d5f8f24dfba3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xHEOzm3DtqmsoBQhAMUnyVtr3P6OpyIeMHYobho2j5FfJrCCAJT0q5U8+CfJPeaQrIRkjzNXFB7Bluo9Gvq+Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-24T22:23:32.084759Z","bundle_sha256":"2888fb66a940f904cba76819f69ba05e922f07746a1c04c254f749f72cc375a2"}}