{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:3FPPDY5ZNN6A2OPKBLOKFVXVEB","short_pith_number":"pith:3FPPDY5Z","canonical_record":{"source":{"id":"1203.6797","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-30T12:57:02Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"b1b6ed4d9fbd54a76dcff006cc9f9de63ffb721c63681f2b0ed1d3a53b7345de","abstract_canon_sha256":"298bdab1447ab81c6bf3e6261f4bd7ff5cb195dce626a88cc43649869813abc3"},"schema_version":"1.0"},"canonical_sha256":"d95ef1e3b96b7c0d39ea0adca2d6f5204ce7b2a9f5095381685c4fc84c918f5b","source":{"kind":"arxiv","id":"1203.6797","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.6797","created_at":"2026-05-18T01:58:00Z"},{"alias_kind":"arxiv_version","alias_value":"1203.6797v1","created_at":"2026-05-18T01:58:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.6797","created_at":"2026-05-18T01:58:00Z"},{"alias_kind":"pith_short_12","alias_value":"3FPPDY5ZNN6A","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"3FPPDY5ZNN6A2OPK","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"3FPPDY5Z","created_at":"2026-05-18T12:26:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:3FPPDY5ZNN6A2OPKBLOKFVXVEB","target":"record","payload":{"canonical_record":{"source":{"id":"1203.6797","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-30T12:57:02Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"b1b6ed4d9fbd54a76dcff006cc9f9de63ffb721c63681f2b0ed1d3a53b7345de","abstract_canon_sha256":"298bdab1447ab81c6bf3e6261f4bd7ff5cb195dce626a88cc43649869813abc3"},"schema_version":"1.0"},"canonical_sha256":"d95ef1e3b96b7c0d39ea0adca2d6f5204ce7b2a9f5095381685c4fc84c918f5b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:00.108535Z","signature_b64":"dSRbFIb/nd2EqM2XNollFBghXfEpSDXMolLsHpdR2bBi9rPpx8N7+rDgHxGTJXg0yXMPnz+9qhTknX5MP7GGBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d95ef1e3b96b7c0d39ea0adca2d6f5204ce7b2a9f5095381685c4fc84c918f5b","last_reissued_at":"2026-05-18T01:58:00.108091Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:00.108091Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1203.6797","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":"2026-05-18T01:58:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JA4ZkyX0DysIBTdABctuhLrojoAcUSkw2I/ygEw+739azmoXRiNSBOIUZJgOnCDTzFxXdG4sZu1jIcGnCU2FCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T03:58:31.656603Z"},"content_sha256":"94afd2d008f5872a26013e045ae6f7d82da8bc71297195f3eacf690f562e7971","schema_version":"1.0","event_id":"sha256:94afd2d008f5872a26013e045ae6f7d82da8bc71297195f3eacf690f562e7971"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:3FPPDY5ZNN6A2OPKBLOKFVXVEB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mid-IR FORCAST/SOFIA Observations of M82","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"A. Tielens, C.P. Henderson, G.E. Gull, G. Stacey, J.D. Adams, J.M. De Buizer, J. Schoenwald, L.D. Keller, M.R. Morris, T.L. Herter, T. Nikola, W.D. Vacca","submitted_at":"2012-03-30T12:57:02Z","abstract_excerpt":"We present 75\"x75\" size maps of M82 at 6.4 micron, 6.6 micron, 7.7 micron, 31.5 micron, and 37.1 micron with a resolution of ~4\" that we have obtained with the mid-IR camera FORCAST on SOFIA. We find strong emission from the inner 60\" (~1kpc) along the major axis, with the main peak 5\" west-southwest of the nucleus and a secondary peak 4\" east-northeast of the nucleus. The detailed morphology of the emission differs among the bands, which is likely due to different dust components dominating the continuum emission at short mid-IR wavelengths and long mid-IR wavelengths. We include Spitzer-IRS "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.6797","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":"2026-05-18T01:58:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aCkj45+22r/sAnlAPuMM4Z/g8msSOjDbiu03UIcj3P0ZvWAHjgfemRy43QPR+ZjQpVf1Rz93nygH6buO1DvHAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T03:58:31.656956Z"},"content_sha256":"27a60b5d27f361facd7124b325f69f3f184d0eebd5c0f37473a09675ccc7b8b3","schema_version":"1.0","event_id":"sha256:27a60b5d27f361facd7124b325f69f3f184d0eebd5c0f37473a09675ccc7b8b3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3FPPDY5ZNN6A2OPKBLOKFVXVEB/bundle.json","state_url":"https://pith.science/pith/3FPPDY5ZNN6A2OPKBLOKFVXVEB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3FPPDY5ZNN6A2OPKBLOKFVXVEB/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":"2026-05-30T03:58:31Z","links":{"resolver":"https://pith.science/pith/3FPPDY5ZNN6A2OPKBLOKFVXVEB","bundle":"https://pith.science/pith/3FPPDY5ZNN6A2OPKBLOKFVXVEB/bundle.json","state":"https://pith.science/pith/3FPPDY5ZNN6A2OPKBLOKFVXVEB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3FPPDY5ZNN6A2OPKBLOKFVXVEB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:3FPPDY5ZNN6A2OPKBLOKFVXVEB","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":"298bdab1447ab81c6bf3e6261f4bd7ff5cb195dce626a88cc43649869813abc3","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-30T12:57:02Z","title_canon_sha256":"b1b6ed4d9fbd54a76dcff006cc9f9de63ffb721c63681f2b0ed1d3a53b7345de"},"schema_version":"1.0","source":{"id":"1203.6797","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.6797","created_at":"2026-05-18T01:58:00Z"},{"alias_kind":"arxiv_version","alias_value":"1203.6797v1","created_at":"2026-05-18T01:58:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.6797","created_at":"2026-05-18T01:58:00Z"},{"alias_kind":"pith_short_12","alias_value":"3FPPDY5ZNN6A","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"3FPPDY5ZNN6A2OPK","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"3FPPDY5Z","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:27a60b5d27f361facd7124b325f69f3f184d0eebd5c0f37473a09675ccc7b8b3","target":"graph","created_at":"2026-05-18T01:58:00Z","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 present 75\"x75\" size maps of M82 at 6.4 micron, 6.6 micron, 7.7 micron, 31.5 micron, and 37.1 micron with a resolution of ~4\" that we have obtained with the mid-IR camera FORCAST on SOFIA. We find strong emission from the inner 60\" (~1kpc) along the major axis, with the main peak 5\" west-southwest of the nucleus and a secondary peak 4\" east-northeast of the nucleus. The detailed morphology of the emission differs among the bands, which is likely due to different dust components dominating the continuum emission at short mid-IR wavelengths and long mid-IR wavelengths. We include Spitzer-IRS ","authors_text":"A. Tielens, C.P. Henderson, G.E. Gull, G. Stacey, J.D. Adams, J.M. De Buizer, J. Schoenwald, L.D. Keller, M.R. Morris, T.L. Herter, T. Nikola, W.D. Vacca","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-30T12:57:02Z","title":"Mid-IR FORCAST/SOFIA Observations of M82"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.6797","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":"sha256:94afd2d008f5872a26013e045ae6f7d82da8bc71297195f3eacf690f562e7971","target":"record","created_at":"2026-05-18T01:58:00Z","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":"298bdab1447ab81c6bf3e6261f4bd7ff5cb195dce626a88cc43649869813abc3","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-30T12:57:02Z","title_canon_sha256":"b1b6ed4d9fbd54a76dcff006cc9f9de63ffb721c63681f2b0ed1d3a53b7345de"},"schema_version":"1.0","source":{"id":"1203.6797","kind":"arxiv","version":1}},"canonical_sha256":"d95ef1e3b96b7c0d39ea0adca2d6f5204ce7b2a9f5095381685c4fc84c918f5b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d95ef1e3b96b7c0d39ea0adca2d6f5204ce7b2a9f5095381685c4fc84c918f5b","first_computed_at":"2026-05-18T01:58:00.108091Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:00.108091Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dSRbFIb/nd2EqM2XNollFBghXfEpSDXMolLsHpdR2bBi9rPpx8N7+rDgHxGTJXg0yXMPnz+9qhTknX5MP7GGBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:00.108535Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.6797","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:94afd2d008f5872a26013e045ae6f7d82da8bc71297195f3eacf690f562e7971","sha256:27a60b5d27f361facd7124b325f69f3f184d0eebd5c0f37473a09675ccc7b8b3"],"state_sha256":"740212d071e53fa7bc3031b881a0e4f6cc958b1cdc1bb412b5ce1cee0a7f01e7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cMZ7I6bCh2L5gxq2KvqkMXqUj4Ow/29KSA12bzAp5pscVxfZaeUWOgbFCcbFQB+2z43GnAuPIjDED/Y6yHsDBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T03:58:31.659258Z","bundle_sha256":"330e2e34b7774a5f3283c7fa848a133294c67a1a9d6ef013c49d0c7e1cade9f2"}}