{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:QXOXTLRIA5YILM5M7HXKXDCJXD","short_pith_number":"pith:QXOXTLRI","canonical_record":{"source":{"id":"1101.4941","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-01-25T21:00:06Z","cross_cats_sorted":[],"title_canon_sha256":"7f1ec57cde22b0d88a609266fc9b5bfcb3f98cb6ccb415a7caa6e9d2fe618c2c","abstract_canon_sha256":"a7647a45a3453ab63c2597573eb81bb00f712397b20831bfb744002953c2ab21"},"schema_version":"1.0"},"canonical_sha256":"85dd79ae28077085b3acf9eeab8c49b8f9fb3fb4a18c5ebc5a608be53d736d6d","source":{"kind":"arxiv","id":"1101.4941","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.4941","created_at":"2026-05-18T02:03:22Z"},{"alias_kind":"arxiv_version","alias_value":"1101.4941v1","created_at":"2026-05-18T02:03:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.4941","created_at":"2026-05-18T02:03:22Z"},{"alias_kind":"pith_short_12","alias_value":"QXOXTLRIA5YI","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"QXOXTLRIA5YILM5M","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"QXOXTLRI","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:QXOXTLRIA5YILM5M7HXKXDCJXD","target":"record","payload":{"canonical_record":{"source":{"id":"1101.4941","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-01-25T21:00:06Z","cross_cats_sorted":[],"title_canon_sha256":"7f1ec57cde22b0d88a609266fc9b5bfcb3f98cb6ccb415a7caa6e9d2fe618c2c","abstract_canon_sha256":"a7647a45a3453ab63c2597573eb81bb00f712397b20831bfb744002953c2ab21"},"schema_version":"1.0"},"canonical_sha256":"85dd79ae28077085b3acf9eeab8c49b8f9fb3fb4a18c5ebc5a608be53d736d6d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:03:22.234726Z","signature_b64":"0q3xuWrIBDfp3YiHArVH7fzYhcht+uzhR+yB5Z88/BlNPFrwTPUM24yL3uiHeojpbJ6Mj0aNOgtuzWdeFyJkDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"85dd79ae28077085b3acf9eeab8c49b8f9fb3fb4a18c5ebc5a608be53d736d6d","last_reissued_at":"2026-05-18T02:03:22.233983Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:03:22.233983Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1101.4941","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":"2026-05-18T02:03:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4x8q9D5b71d9bLsS9qgDYrska9swtTyyd50267tIHYoF7ocUhjQZ85KiFpkqUKh9ddq1MHOkYDVEtE2hDYH4BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T20:46:06.294132Z"},"content_sha256":"591e18baa2c14f410083d841ae855a463fe6fa5461e9d09eebffe22735e3ac71","schema_version":"1.0","event_id":"sha256:591e18baa2c14f410083d841ae855a463fe6fa5461e9d09eebffe22735e3ac71"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:QXOXTLRIA5YILM5M7HXKXDCJXD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mid-infrared properties of OH megamaser host galaxies. I: Spitzer IRS low- and high-resolution spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Henrik W.W. Spoon, Jeremy Darling, Kyle W. Willett, Lee Armus, Vassilis Charmandaris","submitted_at":"2011-01-25T21:00:06Z","abstract_excerpt":"We present mid-infrared spectra and photometry from the Infrared Spectrograph on the Spitzer Space Telescope for 51 OH megamasers (OHMs), along with 15 galaxies confirmed to have no megamaser emission above L_OH = 10^2.3 L_sun. The majority of galaxies display moderate-to-deep 9.7 um amorphous silicate absorption, with OHM galaxies showing stronger average absorption and steeper 20-30 um continuum emission than non-masing galaxies. Emission from multiple polycyclic aromatic hydrocarbons (PAHs), especially at 6.2, 7.7, and 11.3 um, is detected in almost all systems. Fine-structure atomic emissi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.4941","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":"2026-05-18T02:03:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CRCgsXJXIO+6uslK5VEsAHJJAobsz3vRI6TKNzHggBLIraeChYLlbi4mL33RLORGg3re4U5zL8PLxR9MECh/AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T20:46:06.294879Z"},"content_sha256":"ed39a35cff1a39c64b1f5c5cdfd74e4e10d8ed845ad7a86e8d83331a4fba125f","schema_version":"1.0","event_id":"sha256:ed39a35cff1a39c64b1f5c5cdfd74e4e10d8ed845ad7a86e8d83331a4fba125f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QXOXTLRIA5YILM5M7HXKXDCJXD/bundle.json","state_url":"https://pith.science/pith/QXOXTLRIA5YILM5M7HXKXDCJXD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QXOXTLRIA5YILM5M7HXKXDCJXD/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":"2026-05-24T20:46:06Z","links":{"resolver":"https://pith.science/pith/QXOXTLRIA5YILM5M7HXKXDCJXD","bundle":"https://pith.science/pith/QXOXTLRIA5YILM5M7HXKXDCJXD/bundle.json","state":"https://pith.science/pith/QXOXTLRIA5YILM5M7HXKXDCJXD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QXOXTLRIA5YILM5M7HXKXDCJXD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:QXOXTLRIA5YILM5M7HXKXDCJXD","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":"a7647a45a3453ab63c2597573eb81bb00f712397b20831bfb744002953c2ab21","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-01-25T21:00:06Z","title_canon_sha256":"7f1ec57cde22b0d88a609266fc9b5bfcb3f98cb6ccb415a7caa6e9d2fe618c2c"},"schema_version":"1.0","source":{"id":"1101.4941","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.4941","created_at":"2026-05-18T02:03:22Z"},{"alias_kind":"arxiv_version","alias_value":"1101.4941v1","created_at":"2026-05-18T02:03:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.4941","created_at":"2026-05-18T02:03:22Z"},{"alias_kind":"pith_short_12","alias_value":"QXOXTLRIA5YI","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"QXOXTLRIA5YILM5M","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"QXOXTLRI","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:ed39a35cff1a39c64b1f5c5cdfd74e4e10d8ed845ad7a86e8d83331a4fba125f","target":"graph","created_at":"2026-05-18T02:03:22Z","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 mid-infrared spectra and photometry from the Infrared Spectrograph on the Spitzer Space Telescope for 51 OH megamasers (OHMs), along with 15 galaxies confirmed to have no megamaser emission above L_OH = 10^2.3 L_sun. The majority of galaxies display moderate-to-deep 9.7 um amorphous silicate absorption, with OHM galaxies showing stronger average absorption and steeper 20-30 um continuum emission than non-masing galaxies. Emission from multiple polycyclic aromatic hydrocarbons (PAHs), especially at 6.2, 7.7, and 11.3 um, is detected in almost all systems. Fine-structure atomic emissi","authors_text":"Henrik W.W. Spoon, Jeremy Darling, Kyle W. Willett, Lee Armus, Vassilis Charmandaris","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-01-25T21:00:06Z","title":"Mid-infrared properties of OH megamaser host galaxies. I: Spitzer IRS low- and high-resolution spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.4941","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":"sha256:591e18baa2c14f410083d841ae855a463fe6fa5461e9d09eebffe22735e3ac71","target":"record","created_at":"2026-05-18T02:03:22Z","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":"a7647a45a3453ab63c2597573eb81bb00f712397b20831bfb744002953c2ab21","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-01-25T21:00:06Z","title_canon_sha256":"7f1ec57cde22b0d88a609266fc9b5bfcb3f98cb6ccb415a7caa6e9d2fe618c2c"},"schema_version":"1.0","source":{"id":"1101.4941","kind":"arxiv","version":1}},"canonical_sha256":"85dd79ae28077085b3acf9eeab8c49b8f9fb3fb4a18c5ebc5a608be53d736d6d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"85dd79ae28077085b3acf9eeab8c49b8f9fb3fb4a18c5ebc5a608be53d736d6d","first_computed_at":"2026-05-18T02:03:22.233983Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:03:22.233983Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0q3xuWrIBDfp3YiHArVH7fzYhcht+uzhR+yB5Z88/BlNPFrwTPUM24yL3uiHeojpbJ6Mj0aNOgtuzWdeFyJkDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:03:22.234726Z","signed_message":"canonical_sha256_bytes"},"source_id":"1101.4941","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:591e18baa2c14f410083d841ae855a463fe6fa5461e9d09eebffe22735e3ac71","sha256:ed39a35cff1a39c64b1f5c5cdfd74e4e10d8ed845ad7a86e8d83331a4fba125f"],"state_sha256":"9c40498668b1651347e2ef74ba503b787dc739b23642fa6f56ed27e215b1a5a5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nUHIybA5rFSXiuCvosqzTVQFh6ilaUSH3SHjKBFmBA8G8E52MAwA+TbU9gDDPCOe3hrZZoRnFVZjWY81yi8BBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-24T20:46:06.298722Z","bundle_sha256":"89c1c355aef0a1e87a1c2ed84866b9f4e589ecfdc63a89acd584827af511979f"}}