{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:SFKKJUNFGZN3FX7KUKK363TXYY","short_pith_number":"pith:SFKKJUNF","canonical_record":{"source":{"id":"0906.2428","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-06-12T21:18:14Z","cross_cats_sorted":[],"title_canon_sha256":"673cf3787f06801fcd989597c90cc6ed0fa575526fc814d3fa0cd3760afe93e3","abstract_canon_sha256":"1c73248cada3b56e673ff74b3a0b449146d08856a5481248ae096610154c6f43"},"schema_version":"1.0"},"canonical_sha256":"9154a4d1a5365bb2dfeaa295bf6e77c60317698020cdad51c2f670cd90db6a3f","source":{"kind":"arxiv","id":"0906.2428","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0906.2428","created_at":"2026-07-04T15:47:24Z"},{"alias_kind":"arxiv_version","alias_value":"0906.2428v1","created_at":"2026-07-04T15:47:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0906.2428","created_at":"2026-07-04T15:47:24Z"},{"alias_kind":"pith_short_12","alias_value":"SFKKJUNFGZN3","created_at":"2026-07-04T15:47:24Z"},{"alias_kind":"pith_short_16","alias_value":"SFKKJUNFGZN3FX7K","created_at":"2026-07-04T15:47:24Z"},{"alias_kind":"pith_short_8","alias_value":"SFKKJUNF","created_at":"2026-07-04T15:47:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:SFKKJUNFGZN3FX7KUKK363TXYY","target":"record","payload":{"canonical_record":{"source":{"id":"0906.2428","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-06-12T21:18:14Z","cross_cats_sorted":[],"title_canon_sha256":"673cf3787f06801fcd989597c90cc6ed0fa575526fc814d3fa0cd3760afe93e3","abstract_canon_sha256":"1c73248cada3b56e673ff74b3a0b449146d08856a5481248ae096610154c6f43"},"schema_version":"1.0"},"canonical_sha256":"9154a4d1a5365bb2dfeaa295bf6e77c60317698020cdad51c2f670cd90db6a3f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:47:24.801353Z","signature_b64":"QiwXmjWFLt9YEgj5TaPD6MrUfNtB45sIZdPRvnbbR0ZDHApPMALXiYd1SI7gZ6XKRg8qPNZ5JHxzA5zLM3WwAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9154a4d1a5365bb2dfeaa295bf6e77c60317698020cdad51c2f670cd90db6a3f","last_reissued_at":"2026-07-04T15:47:24.800885Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:47:24.800885Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0906.2428","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":"2026-07-04T15:47:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZM1o+S4iJAf4R86654V2bcVUdzGC25UsnoM0vLhndVRcb3utTIedYx9QAac2w6kMVRfyOAVZJPI0mzT4k1u8Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:40:33.491804Z"},"content_sha256":"381fcba7b7fa7dc70417317e2a1128315d84be358db250e9b5890fb7549cbbee","schema_version":"1.0","event_id":"sha256:381fcba7b7fa7dc70417317e2a1128315d84be358db250e9b5890fb7549cbbee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:SFKKJUNFGZN3FX7KUKK363TXYY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chandra and Spitzer Imaging of the Infrared Cluster in NGC 2071","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Damineli, K.M. Flaherty, K.R. Sokal, M. Audard, M. Guedel, M.R. Meyer, S.L. Skinner, S.T. Megeath","submitted_at":"2009-06-12T21:18:14Z","abstract_excerpt":"We present results of a sensitive Chandra X-ray observation and Spitzer mid-IR observations of the infrared cluster lying north of the NGC 2071 reflection nebula in the Orion B molecular cloud. We focus on the dense cluster core known as NGC 2071-IR which contains at least nine IR sources within a 40 x 40 arcsecond region. This region shows clear signs of active star formation including powerful molecular outflows, Herbig-Haro objects, and both OH and H2O masers. We use Spitzer IRAC images to aid in X-ray source identification and to determine YSO classes using mid-IR colors. Spitzer IRAC colo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0906.2428","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0906.2428/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T15:47:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7fATTSBdDGttWWLGALh51UbwkHvNDqNS/TSVVMh0wJlCNz9Oe8ClD0T/KIf2FFVDCnDswKzvZfk1Aq7nTLC4Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:40:33.492294Z"},"content_sha256":"930102a7f2b2ee2f297628b108b47663d5be127849bce77ca9a391f014128026","schema_version":"1.0","event_id":"sha256:930102a7f2b2ee2f297628b108b47663d5be127849bce77ca9a391f014128026"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SFKKJUNFGZN3FX7KUKK363TXYY/bundle.json","state_url":"https://pith.science/pith/SFKKJUNFGZN3FX7KUKK363TXYY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SFKKJUNFGZN3FX7KUKK363TXYY/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":"2026-08-03T16:40:33Z","links":{"resolver":"https://pith.science/pith/SFKKJUNFGZN3FX7KUKK363TXYY","bundle":"https://pith.science/pith/SFKKJUNFGZN3FX7KUKK363TXYY/bundle.json","state":"https://pith.science/pith/SFKKJUNFGZN3FX7KUKK363TXYY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SFKKJUNFGZN3FX7KUKK363TXYY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:SFKKJUNFGZN3FX7KUKK363TXYY","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":"1c73248cada3b56e673ff74b3a0b449146d08856a5481248ae096610154c6f43","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-06-12T21:18:14Z","title_canon_sha256":"673cf3787f06801fcd989597c90cc6ed0fa575526fc814d3fa0cd3760afe93e3"},"schema_version":"1.0","source":{"id":"0906.2428","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0906.2428","created_at":"2026-07-04T15:47:24Z"},{"alias_kind":"arxiv_version","alias_value":"0906.2428v1","created_at":"2026-07-04T15:47:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0906.2428","created_at":"2026-07-04T15:47:24Z"},{"alias_kind":"pith_short_12","alias_value":"SFKKJUNFGZN3","created_at":"2026-07-04T15:47:24Z"},{"alias_kind":"pith_short_16","alias_value":"SFKKJUNFGZN3FX7K","created_at":"2026-07-04T15:47:24Z"},{"alias_kind":"pith_short_8","alias_value":"SFKKJUNF","created_at":"2026-07-04T15:47:24Z"}],"graph_snapshots":[{"event_id":"sha256:930102a7f2b2ee2f297628b108b47663d5be127849bce77ca9a391f014128026","target":"graph","created_at":"2026-07-04T15:47:24Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0906.2428/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present results of a sensitive Chandra X-ray observation and Spitzer mid-IR observations of the infrared cluster lying north of the NGC 2071 reflection nebula in the Orion B molecular cloud. We focus on the dense cluster core known as NGC 2071-IR which contains at least nine IR sources within a 40 x 40 arcsecond region. This region shows clear signs of active star formation including powerful molecular outflows, Herbig-Haro objects, and both OH and H2O masers. We use Spitzer IRAC images to aid in X-ray source identification and to determine YSO classes using mid-IR colors. Spitzer IRAC colo","authors_text":"A. Damineli, K.M. Flaherty, K.R. Sokal, M. Audard, M. Guedel, M.R. Meyer, S.L. Skinner, S.T. Megeath","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-06-12T21:18:14Z","title":"Chandra and Spitzer Imaging of the Infrared Cluster in NGC 2071"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0906.2428","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":"sha256:381fcba7b7fa7dc70417317e2a1128315d84be358db250e9b5890fb7549cbbee","target":"record","created_at":"2026-07-04T15:47:24Z","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":"1c73248cada3b56e673ff74b3a0b449146d08856a5481248ae096610154c6f43","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-06-12T21:18:14Z","title_canon_sha256":"673cf3787f06801fcd989597c90cc6ed0fa575526fc814d3fa0cd3760afe93e3"},"schema_version":"1.0","source":{"id":"0906.2428","kind":"arxiv","version":1}},"canonical_sha256":"9154a4d1a5365bb2dfeaa295bf6e77c60317698020cdad51c2f670cd90db6a3f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9154a4d1a5365bb2dfeaa295bf6e77c60317698020cdad51c2f670cd90db6a3f","first_computed_at":"2026-07-04T15:47:24.800885Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:47:24.800885Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QiwXmjWFLt9YEgj5TaPD6MrUfNtB45sIZdPRvnbbR0ZDHApPMALXiYd1SI7gZ6XKRg8qPNZ5JHxzA5zLM3WwAQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:47:24.801353Z","signed_message":"canonical_sha256_bytes"},"source_id":"0906.2428","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:381fcba7b7fa7dc70417317e2a1128315d84be358db250e9b5890fb7549cbbee","sha256:930102a7f2b2ee2f297628b108b47663d5be127849bce77ca9a391f014128026"],"state_sha256":"d9735d47dcf93022cb3c9d0ad5b6a90e57811ed9a0e000250b570d7e6fe5bbd6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2lnCt3FRMbyi42V9lct637x4dKcCOWUb7sILgOM6WgkVIWKV7Gt02pYouoI+0DSaUYtvC+vM1nSunfehTX4FDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T16:40:33.496352Z","bundle_sha256":"9e691f96249996cd1790e825542779a2714a52ac33f39974adda169a356680a1"}}