{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:Q5VO6ANUGFLUFDWGYA7BTWDRXT","short_pith_number":"pith:Q5VO6ANU","canonical_record":{"source":{"id":"1309.5166","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-09-20T04:08:54Z","cross_cats_sorted":[],"title_canon_sha256":"86a7b9b479c3cd5a9997b08c4bdca680d882315b12107e1165f67c2101437b78","abstract_canon_sha256":"2cf3edad059262f3462a7c4ebc3f5de8a01184b8bdac6df8afae540ae64e7d8d"},"schema_version":"1.0"},"canonical_sha256":"876aef01b43157428ec6c03e19d871bce17ea2fc248bea509fd4a696a570362a","source":{"kind":"arxiv","id":"1309.5166","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.5166","created_at":"2026-05-18T01:47:35Z"},{"alias_kind":"arxiv_version","alias_value":"1309.5166v1","created_at":"2026-05-18T01:47:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.5166","created_at":"2026-05-18T01:47:35Z"},{"alias_kind":"pith_short_12","alias_value":"Q5VO6ANUGFLU","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"Q5VO6ANUGFLUFDWG","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"Q5VO6ANU","created_at":"2026-05-18T12:27:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:Q5VO6ANUGFLUFDWGYA7BTWDRXT","target":"record","payload":{"canonical_record":{"source":{"id":"1309.5166","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-09-20T04:08:54Z","cross_cats_sorted":[],"title_canon_sha256":"86a7b9b479c3cd5a9997b08c4bdca680d882315b12107e1165f67c2101437b78","abstract_canon_sha256":"2cf3edad059262f3462a7c4ebc3f5de8a01184b8bdac6df8afae540ae64e7d8d"},"schema_version":"1.0"},"canonical_sha256":"876aef01b43157428ec6c03e19d871bce17ea2fc248bea509fd4a696a570362a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:47:35.247083Z","signature_b64":"CNoEWXNHp/zn9isJzGI8i/o23WjFRkKN1S/rTC0n63P/ijflBKUn352vliWAMQuId4inRFdm+JaTyY1rRT7aBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"876aef01b43157428ec6c03e19d871bce17ea2fc248bea509fd4a696a570362a","last_reissued_at":"2026-05-18T01:47:35.246463Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:47:35.246463Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1309.5166","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":"2026-05-18T01:47:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UfP9ZZLxgs+jZ52rzgbqBE+ZnLmmX7WN+LQogu4PLOO2iT7/pNOQPIjQRyYphMT/c/2X670QYr+icnxaB4yIDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T12:15:30.284401Z"},"content_sha256":"abb29409540ce18c8988052626f49e5d042830ae8da2cd745f985db9adc6a1a5","schema_version":"1.0","event_id":"sha256:abb29409540ce18c8988052626f49e5d042830ae8da2cd745f985db9adc6a1a5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:Q5VO6ANUGFLUFDWGYA7BTWDRXT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Refining the M_BH-V_c scaling relation with HI rotation curves of water megamaser galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Ai-Lei Sun, Cheng-Yu Kuo, C. M. Violette Impellizzeri, James A. Braatz, Jenny E. Greene, Sarah Tuttle","submitted_at":"2013-09-20T04:08:54Z","abstract_excerpt":"Black hole - galaxy scaling relations provide information about the coevolution of supermassive black holes and their host galaxies. We compare the black hole mass - circular velocity (MBH - Vc) relation with the black hole mass - bulge stellar velocity dispersion (MBH - sigma) relation, to see whether the scaling relations can passively emerge from a large number of mergers, or require a physical mechanism, such as feedback from an active nucleus. We present VLA H I observations of five galaxies, including three water megamaser galaxies, to measure the circular velocity. Using twenty-two gala"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.5166","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":"2026-05-18T01:47:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7tvL7WyLeCLcrcWSvFQsRSbceQNwaVIWRsyx6vQNPNg4hrXNTudBSYcZ/arUo/MqiEmmSyaD5EKl7EhZN/WAAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T12:15:30.285200Z"},"content_sha256":"843d3fd171483e6cf4b6064dda5dd0f63e7880bce153df63db3f3940453cbaf2","schema_version":"1.0","event_id":"sha256:843d3fd171483e6cf4b6064dda5dd0f63e7880bce153df63db3f3940453cbaf2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q5VO6ANUGFLUFDWGYA7BTWDRXT/bundle.json","state_url":"https://pith.science/pith/Q5VO6ANUGFLUFDWGYA7BTWDRXT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q5VO6ANUGFLUFDWGYA7BTWDRXT/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":"2026-05-30T12:15:30Z","links":{"resolver":"https://pith.science/pith/Q5VO6ANUGFLUFDWGYA7BTWDRXT","bundle":"https://pith.science/pith/Q5VO6ANUGFLUFDWGYA7BTWDRXT/bundle.json","state":"https://pith.science/pith/Q5VO6ANUGFLUFDWGYA7BTWDRXT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q5VO6ANUGFLUFDWGYA7BTWDRXT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:Q5VO6ANUGFLUFDWGYA7BTWDRXT","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":"2cf3edad059262f3462a7c4ebc3f5de8a01184b8bdac6df8afae540ae64e7d8d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-09-20T04:08:54Z","title_canon_sha256":"86a7b9b479c3cd5a9997b08c4bdca680d882315b12107e1165f67c2101437b78"},"schema_version":"1.0","source":{"id":"1309.5166","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.5166","created_at":"2026-05-18T01:47:35Z"},{"alias_kind":"arxiv_version","alias_value":"1309.5166v1","created_at":"2026-05-18T01:47:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.5166","created_at":"2026-05-18T01:47:35Z"},{"alias_kind":"pith_short_12","alias_value":"Q5VO6ANUGFLU","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"Q5VO6ANUGFLUFDWG","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"Q5VO6ANU","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:843d3fd171483e6cf4b6064dda5dd0f63e7880bce153df63db3f3940453cbaf2","target":"graph","created_at":"2026-05-18T01:47:35Z","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":"Black hole - galaxy scaling relations provide information about the coevolution of supermassive black holes and their host galaxies. We compare the black hole mass - circular velocity (MBH - Vc) relation with the black hole mass - bulge stellar velocity dispersion (MBH - sigma) relation, to see whether the scaling relations can passively emerge from a large number of mergers, or require a physical mechanism, such as feedback from an active nucleus. We present VLA H I observations of five galaxies, including three water megamaser galaxies, to measure the circular velocity. Using twenty-two gala","authors_text":"Ai-Lei Sun, Cheng-Yu Kuo, C. M. Violette Impellizzeri, James A. Braatz, Jenny E. Greene, Sarah Tuttle","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-09-20T04:08:54Z","title":"Refining the M_BH-V_c scaling relation with HI rotation curves of water megamaser galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.5166","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:abb29409540ce18c8988052626f49e5d042830ae8da2cd745f985db9adc6a1a5","target":"record","created_at":"2026-05-18T01:47:35Z","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":"2cf3edad059262f3462a7c4ebc3f5de8a01184b8bdac6df8afae540ae64e7d8d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-09-20T04:08:54Z","title_canon_sha256":"86a7b9b479c3cd5a9997b08c4bdca680d882315b12107e1165f67c2101437b78"},"schema_version":"1.0","source":{"id":"1309.5166","kind":"arxiv","version":1}},"canonical_sha256":"876aef01b43157428ec6c03e19d871bce17ea2fc248bea509fd4a696a570362a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"876aef01b43157428ec6c03e19d871bce17ea2fc248bea509fd4a696a570362a","first_computed_at":"2026-05-18T01:47:35.246463Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:47:35.246463Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CNoEWXNHp/zn9isJzGI8i/o23WjFRkKN1S/rTC0n63P/ijflBKUn352vliWAMQuId4inRFdm+JaTyY1rRT7aBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:47:35.247083Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.5166","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:abb29409540ce18c8988052626f49e5d042830ae8da2cd745f985db9adc6a1a5","sha256:843d3fd171483e6cf4b6064dda5dd0f63e7880bce153df63db3f3940453cbaf2"],"state_sha256":"fa5f6ae4ca29c5f66a8a5eaa9cdecccc56dff2f5d740ab2f26198b1f03831571"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"46NQ+UbIiTNZ85RS1IdjXg7sVt9G4r9Dygt3GECIrzSzC/jLl7//xDQDEESq5ewL4F4/3YS6jQovhdNdupaiBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T12:15:30.288982Z","bundle_sha256":"82e9d1441f1319385a9f7de1960c5934efdbcaba9f3b4902188b3fa5ea6162af"}}