{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:LOK6737W7Y6SPGZ34BU57OCWXQ","short_pith_number":"pith:LOK6737W","canonical_record":{"source":{"id":"1006.1964","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-06-10T07:03:11Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"7160acbb868fa1f7d4cd482d13f3ca5390937a29d46a77716a7083c7d2b92324","abstract_canon_sha256":"1e3abed9ee025430bc452eabbebaecfe66a85abc7823ba87b9e7cb7d56dd1005"},"schema_version":"1.0"},"canonical_sha256":"5b95efeff6fe3d279b3be069dfb856bc28a2d8271f83e72dcf69445acc813e21","source":{"kind":"arxiv","id":"1006.1964","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.1964","created_at":"2026-05-18T02:06:55Z"},{"alias_kind":"arxiv_version","alias_value":"1006.1964v2","created_at":"2026-05-18T02:06:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.1964","created_at":"2026-05-18T02:06:55Z"},{"alias_kind":"pith_short_12","alias_value":"LOK6737W7Y6S","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_16","alias_value":"LOK6737W7Y6SPGZ3","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_8","alias_value":"LOK6737W","created_at":"2026-05-18T12:26:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:LOK6737W7Y6SPGZ34BU57OCWXQ","target":"record","payload":{"canonical_record":{"source":{"id":"1006.1964","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-06-10T07:03:11Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"7160acbb868fa1f7d4cd482d13f3ca5390937a29d46a77716a7083c7d2b92324","abstract_canon_sha256":"1e3abed9ee025430bc452eabbebaecfe66a85abc7823ba87b9e7cb7d56dd1005"},"schema_version":"1.0"},"canonical_sha256":"5b95efeff6fe3d279b3be069dfb856bc28a2d8271f83e72dcf69445acc813e21","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:06:55.265628Z","signature_b64":"CyIRlZrI6sOqw5/miG8SAz9rVPGKoezIPJ/JsP6tvObMsux6ZuyCJO6RxxngW7tRUaE9ifP96KI4GAe/diaeAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5b95efeff6fe3d279b3be069dfb856bc28a2d8271f83e72dcf69445acc813e21","last_reissued_at":"2026-05-18T02:06:55.265022Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:06:55.265022Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1006.1964","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:06:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E18CxXnTAvwDGEzlrk5EOUBWcTFwbpIkMTzFSlcfgA98B2SFbq0GTitvfWyZdyTxDc3BkhTOdUmxmtSLAm/XBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T07:23:58.564512Z"},"content_sha256":"cc4c4038369fd5cba2ad00f1fcdeb533fcf84cee320dfc09b4bbe85022f179ab","schema_version":"1.0","event_id":"sha256:cc4c4038369fd5cba2ad00f1fcdeb533fcf84cee320dfc09b4bbe85022f179ab"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:LOK6737W7Y6SPGZ34BU57OCWXQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Census of the High-Density Molecular Gas in M82","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.CO","authors_text":"B. J. Naylor, C. M. Bradford, H. Inami, H. Matsuhara, H. T. Nguyen, J. E. Aguirre, J. Glenn, J. J. Bock, J. Kamenetzky, J. Zmuidzinas, L. Earle, P. R. Maloney","submitted_at":"2010-06-10T07:03:11Z","abstract_excerpt":"We present a three-pointing study of the molecular gas in the starburst nucleus of M82 based on 190 - 307 GHz spectra obtained with Z-Spec at the Caltech Submillimeter Observatory. We present intensity measurements, detections and upper limits, for 20 transitions, including several new detections of CS, HNC, C2H, H2CO, and CH3CCH lines. We combine our measurements with previously-published measurements at other frequencies for HCN, HNC, CS, C34S, and HCO+ in a multi-species likelihood analysis constraining gas mass, density and temperature, and the species' relative abundances. We find some 1."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.1964","kind":"arxiv","version":2},"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":"2026-05-18T02:06:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1BjOU5/NSONlD8s6zggas2oyh54RpNH5ESAQKJfZfwtBslVi/hEm5nF6TILux1QQYRzqNwp7sk03aDJ/IucMBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T07:23:58.564845Z"},"content_sha256":"aa6c6f496812d7ce5bbed6781dd5fa55300cd0543e304fb40bf1ce6aecd2944a","schema_version":"1.0","event_id":"sha256:aa6c6f496812d7ce5bbed6781dd5fa55300cd0543e304fb40bf1ce6aecd2944a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LOK6737W7Y6SPGZ34BU57OCWXQ/bundle.json","state_url":"https://pith.science/pith/LOK6737W7Y6SPGZ34BU57OCWXQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LOK6737W7Y6SPGZ34BU57OCWXQ/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":"2026-06-02T07:23:58Z","links":{"resolver":"https://pith.science/pith/LOK6737W7Y6SPGZ34BU57OCWXQ","bundle":"https://pith.science/pith/LOK6737W7Y6SPGZ34BU57OCWXQ/bundle.json","state":"https://pith.science/pith/LOK6737W7Y6SPGZ34BU57OCWXQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LOK6737W7Y6SPGZ34BU57OCWXQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:LOK6737W7Y6SPGZ34BU57OCWXQ","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":"1e3abed9ee025430bc452eabbebaecfe66a85abc7823ba87b9e7cb7d56dd1005","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-06-10T07:03:11Z","title_canon_sha256":"7160acbb868fa1f7d4cd482d13f3ca5390937a29d46a77716a7083c7d2b92324"},"schema_version":"1.0","source":{"id":"1006.1964","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.1964","created_at":"2026-05-18T02:06:55Z"},{"alias_kind":"arxiv_version","alias_value":"1006.1964v2","created_at":"2026-05-18T02:06:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.1964","created_at":"2026-05-18T02:06:55Z"},{"alias_kind":"pith_short_12","alias_value":"LOK6737W7Y6S","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_16","alias_value":"LOK6737W7Y6SPGZ3","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_8","alias_value":"LOK6737W","created_at":"2026-05-18T12:26:10Z"}],"graph_snapshots":[{"event_id":"sha256:aa6c6f496812d7ce5bbed6781dd5fa55300cd0543e304fb40bf1ce6aecd2944a","target":"graph","created_at":"2026-05-18T02:06:55Z","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 a three-pointing study of the molecular gas in the starburst nucleus of M82 based on 190 - 307 GHz spectra obtained with Z-Spec at the Caltech Submillimeter Observatory. We present intensity measurements, detections and upper limits, for 20 transitions, including several new detections of CS, HNC, C2H, H2CO, and CH3CCH lines. We combine our measurements with previously-published measurements at other frequencies for HCN, HNC, CS, C34S, and HCO+ in a multi-species likelihood analysis constraining gas mass, density and temperature, and the species' relative abundances. We find some 1.","authors_text":"B. J. Naylor, C. M. Bradford, H. Inami, H. Matsuhara, H. T. Nguyen, J. E. Aguirre, J. Glenn, J. J. Bock, J. Kamenetzky, J. Zmuidzinas, L. Earle, P. R. Maloney","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-06-10T07:03:11Z","title":"A Census of the High-Density Molecular Gas in M82"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.1964","kind":"arxiv","version":2},"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:cc4c4038369fd5cba2ad00f1fcdeb533fcf84cee320dfc09b4bbe85022f179ab","target":"record","created_at":"2026-05-18T02:06:55Z","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":"1e3abed9ee025430bc452eabbebaecfe66a85abc7823ba87b9e7cb7d56dd1005","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-06-10T07:03:11Z","title_canon_sha256":"7160acbb868fa1f7d4cd482d13f3ca5390937a29d46a77716a7083c7d2b92324"},"schema_version":"1.0","source":{"id":"1006.1964","kind":"arxiv","version":2}},"canonical_sha256":"5b95efeff6fe3d279b3be069dfb856bc28a2d8271f83e72dcf69445acc813e21","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5b95efeff6fe3d279b3be069dfb856bc28a2d8271f83e72dcf69445acc813e21","first_computed_at":"2026-05-18T02:06:55.265022Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:06:55.265022Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CyIRlZrI6sOqw5/miG8SAz9rVPGKoezIPJ/JsP6tvObMsux6ZuyCJO6RxxngW7tRUaE9ifP96KI4GAe/diaeAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:06:55.265628Z","signed_message":"canonical_sha256_bytes"},"source_id":"1006.1964","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cc4c4038369fd5cba2ad00f1fcdeb533fcf84cee320dfc09b4bbe85022f179ab","sha256:aa6c6f496812d7ce5bbed6781dd5fa55300cd0543e304fb40bf1ce6aecd2944a"],"state_sha256":"a65b81feae9c96c34998d2116191b8c78e1cc19e26b7bb3e626f8b516b54f723"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EK3bhLhg0ITpezzwI5u/HrSMvvNUu99c9YJpRj5YqHBvNz2XFRO4JBBSI28utOta+RsOV9yct9ca0ESwcxInBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T07:23:58.566660Z","bundle_sha256":"4b1dd2c6bd1ce7952463721de1824ed35f130cae72e27b6e37d7883e2b201668"}}