{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:2WSIE4GRCN3XU2M3GYFH3TM5KO","short_pith_number":"pith:2WSIE4GR","canonical_record":{"source":{"id":"1506.05917","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-06-19T08:52:25Z","cross_cats_sorted":[],"title_canon_sha256":"078aa41639c2d00d373d8759edfbd15bf7d2aa61a7ddc0ea6a03f782071f1def","abstract_canon_sha256":"bf3b64b2c5268bb27e31d4798cecb1505374d1d815b97b637105448455f77ee1"},"schema_version":"1.0"},"canonical_sha256":"d5a48270d113777a699b360a7dcd9d53a53f1e44afa3a315a1ee891487dac04a","source":{"kind":"arxiv","id":"1506.05917","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.05917","created_at":"2026-05-18T01:42:46Z"},{"alias_kind":"arxiv_version","alias_value":"1506.05917v1","created_at":"2026-05-18T01:42:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.05917","created_at":"2026-05-18T01:42:46Z"},{"alias_kind":"pith_short_12","alias_value":"2WSIE4GRCN3X","created_at":"2026-05-18T12:29:02Z"},{"alias_kind":"pith_short_16","alias_value":"2WSIE4GRCN3XU2M3","created_at":"2026-05-18T12:29:02Z"},{"alias_kind":"pith_short_8","alias_value":"2WSIE4GR","created_at":"2026-05-18T12:29:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:2WSIE4GRCN3XU2M3GYFH3TM5KO","target":"record","payload":{"canonical_record":{"source":{"id":"1506.05917","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-06-19T08:52:25Z","cross_cats_sorted":[],"title_canon_sha256":"078aa41639c2d00d373d8759edfbd15bf7d2aa61a7ddc0ea6a03f782071f1def","abstract_canon_sha256":"bf3b64b2c5268bb27e31d4798cecb1505374d1d815b97b637105448455f77ee1"},"schema_version":"1.0"},"canonical_sha256":"d5a48270d113777a699b360a7dcd9d53a53f1e44afa3a315a1ee891487dac04a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:46.862693Z","signature_b64":"0tklImijGep2cqKcJZ4yoQYtHE1lpPIP9e+y6nHc2IsRecX2hY91HL3MSJX9cJQAJI83tI49zVoLPjLXGAB9DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d5a48270d113777a699b360a7dcd9d53a53f1e44afa3a315a1ee891487dac04a","last_reissued_at":"2026-05-18T01:42:46.862081Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:46.862081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1506.05917","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":"2026-05-18T01:42:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IbaRir2DKlLmOGzRsfdZloVz4yQ20CHCDnS1fW6tnEkFjfHI07sr7DemUQjRJTd9a78p4AlZf769Md0wOgB2DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T05:26:24.459745Z"},"content_sha256":"a1231ba9dfb527cd44498618eea5a2da4969a0b06813fbe1772a6032d54413cd","schema_version":"1.0","event_id":"sha256:a1231ba9dfb527cd44498618eea5a2da4969a0b06813fbe1772a6032d54413cd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:2WSIE4GRCN3XU2M3GYFH3TM5KO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Measurement of the Black-Hole Mass in NGC 1097 using ALMA","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"2), (2) National Astronomical Observatory of Japan), Kartik Sheth, Kotaro Kohno ((1) SOKENDAI (The Graduate University for Advanced Studies), Kyoko Onishi (1, Satoru Iguchi","submitted_at":"2015-06-19T08:52:25Z","abstract_excerpt":"We present an estimate of the mass of the supermassive black hole (SMBH) in the nearby type-1 Seyfert galaxy \\object{NGC 1097} using Atacamma Large Millimeter/Submillimeter Array (ALMA) observations of dense gas kinematics. Dense molecular gas dynamics are traced with ${\\rm HCN} (J=1-0)$ and ${\\rm HCO^{+}} (J=1-0)$ emission lines. Assuming a host galaxy inclination of $46^{\\circ}$, we derive a SMBH mass, $M_{\\rm BH}=1.40^{+0.27}_{-0.32} \\times 10^{8}M_{\\odot}$, and an I-band mass to light ratio to be $5.14^{+0.03}_{-0.04}$, using ${\\rm HCN} (J=1-0)$. The estimated parameters are consistent bet"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.05917","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":"2026-05-18T01:42:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/Ie83yMc237I0x1ghfTBs+dkKYv0lrQwQgKKuy4u+dMIk+Nb/bFsJfOaKDJL7guzxWxOjAUNCVeFfzjKhPJBCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T05:26:24.460091Z"},"content_sha256":"6e0cbdb032fe6d0f37fa6ee9c2aa163e54b523e08f5f56139cbebe5771b5a522","schema_version":"1.0","event_id":"sha256:6e0cbdb032fe6d0f37fa6ee9c2aa163e54b523e08f5f56139cbebe5771b5a522"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2WSIE4GRCN3XU2M3GYFH3TM5KO/bundle.json","state_url":"https://pith.science/pith/2WSIE4GRCN3XU2M3GYFH3TM5KO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2WSIE4GRCN3XU2M3GYFH3TM5KO/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":"2026-06-23T05:26:24Z","links":{"resolver":"https://pith.science/pith/2WSIE4GRCN3XU2M3GYFH3TM5KO","bundle":"https://pith.science/pith/2WSIE4GRCN3XU2M3GYFH3TM5KO/bundle.json","state":"https://pith.science/pith/2WSIE4GRCN3XU2M3GYFH3TM5KO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2WSIE4GRCN3XU2M3GYFH3TM5KO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:2WSIE4GRCN3XU2M3GYFH3TM5KO","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":"bf3b64b2c5268bb27e31d4798cecb1505374d1d815b97b637105448455f77ee1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-06-19T08:52:25Z","title_canon_sha256":"078aa41639c2d00d373d8759edfbd15bf7d2aa61a7ddc0ea6a03f782071f1def"},"schema_version":"1.0","source":{"id":"1506.05917","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.05917","created_at":"2026-05-18T01:42:46Z"},{"alias_kind":"arxiv_version","alias_value":"1506.05917v1","created_at":"2026-05-18T01:42:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.05917","created_at":"2026-05-18T01:42:46Z"},{"alias_kind":"pith_short_12","alias_value":"2WSIE4GRCN3X","created_at":"2026-05-18T12:29:02Z"},{"alias_kind":"pith_short_16","alias_value":"2WSIE4GRCN3XU2M3","created_at":"2026-05-18T12:29:02Z"},{"alias_kind":"pith_short_8","alias_value":"2WSIE4GR","created_at":"2026-05-18T12:29:02Z"}],"graph_snapshots":[{"event_id":"sha256:6e0cbdb032fe6d0f37fa6ee9c2aa163e54b523e08f5f56139cbebe5771b5a522","target":"graph","created_at":"2026-05-18T01:42:46Z","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 an estimate of the mass of the supermassive black hole (SMBH) in the nearby type-1 Seyfert galaxy \\object{NGC 1097} using Atacamma Large Millimeter/Submillimeter Array (ALMA) observations of dense gas kinematics. Dense molecular gas dynamics are traced with ${\\rm HCN} (J=1-0)$ and ${\\rm HCO^{+}} (J=1-0)$ emission lines. Assuming a host galaxy inclination of $46^{\\circ}$, we derive a SMBH mass, $M_{\\rm BH}=1.40^{+0.27}_{-0.32} \\times 10^{8}M_{\\odot}$, and an I-band mass to light ratio to be $5.14^{+0.03}_{-0.04}$, using ${\\rm HCN} (J=1-0)$. The estimated parameters are consistent bet","authors_text":"2), (2) National Astronomical Observatory of Japan), Kartik Sheth, Kotaro Kohno ((1) SOKENDAI (The Graduate University for Advanced Studies), Kyoko Onishi (1, Satoru Iguchi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-06-19T08:52:25Z","title":"A Measurement of the Black-Hole Mass in NGC 1097 using ALMA"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.05917","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:a1231ba9dfb527cd44498618eea5a2da4969a0b06813fbe1772a6032d54413cd","target":"record","created_at":"2026-05-18T01:42:46Z","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":"bf3b64b2c5268bb27e31d4798cecb1505374d1d815b97b637105448455f77ee1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-06-19T08:52:25Z","title_canon_sha256":"078aa41639c2d00d373d8759edfbd15bf7d2aa61a7ddc0ea6a03f782071f1def"},"schema_version":"1.0","source":{"id":"1506.05917","kind":"arxiv","version":1}},"canonical_sha256":"d5a48270d113777a699b360a7dcd9d53a53f1e44afa3a315a1ee891487dac04a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d5a48270d113777a699b360a7dcd9d53a53f1e44afa3a315a1ee891487dac04a","first_computed_at":"2026-05-18T01:42:46.862081Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:46.862081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0tklImijGep2cqKcJZ4yoQYtHE1lpPIP9e+y6nHc2IsRecX2hY91HL3MSJX9cJQAJI83tI49zVoLPjLXGAB9DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:46.862693Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.05917","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a1231ba9dfb527cd44498618eea5a2da4969a0b06813fbe1772a6032d54413cd","sha256:6e0cbdb032fe6d0f37fa6ee9c2aa163e54b523e08f5f56139cbebe5771b5a522"],"state_sha256":"2ecdcd50cde0706ac8b6f5647207fa7b48e2bcf780e4038b064bae03ecd9edf7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sZpPG5GUXk6c7sSh5qpHajJ1patVAcb4Igi3mb5AJlvl3Q0wS0BO2rmYDg7MOsCn0KlQ+Brc9mhxngr8g4vcBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-23T05:26:24.462061Z","bundle_sha256":"e2e4efe47297de5fd458da17eba83753cfddc9bdc24709de7b93eacf557edd1e"}}