{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:L6LEIBLY6UHKEXJKBLFQAWNPCX","short_pith_number":"pith:L6LEIBLY","canonical_record":{"source":{"id":"1112.2548","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-12T13:59:20Z","cross_cats_sorted":[],"title_canon_sha256":"de3382f66e4f2627f3a9d29edf72a404b55124e420461dbab57a2f01f3f0586c","abstract_canon_sha256":"6be1c007c13934cb896e0738b2a67451239324d5ca2d87e5d8b0a4f813dd672e"},"schema_version":"1.0"},"canonical_sha256":"5f96440578f50ea25d2a0acb0059af15c9096a2ad0227d60d339aabb77ae1441","source":{"kind":"arxiv","id":"1112.2548","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.2548","created_at":"2026-05-18T01:59:11Z"},{"alias_kind":"arxiv_version","alias_value":"1112.2548v1","created_at":"2026-05-18T01:59:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.2548","created_at":"2026-05-18T01:59:11Z"},{"alias_kind":"pith_short_12","alias_value":"L6LEIBLY6UHK","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"L6LEIBLY6UHKEXJK","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"L6LEIBLY","created_at":"2026-05-18T12:26:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:L6LEIBLY6UHKEXJKBLFQAWNPCX","target":"record","payload":{"canonical_record":{"source":{"id":"1112.2548","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-12T13:59:20Z","cross_cats_sorted":[],"title_canon_sha256":"de3382f66e4f2627f3a9d29edf72a404b55124e420461dbab57a2f01f3f0586c","abstract_canon_sha256":"6be1c007c13934cb896e0738b2a67451239324d5ca2d87e5d8b0a4f813dd672e"},"schema_version":"1.0"},"canonical_sha256":"5f96440578f50ea25d2a0acb0059af15c9096a2ad0227d60d339aabb77ae1441","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:59:11.836630Z","signature_b64":"gc5e8bHjVo7epZp2l+mJbETXqcMyQ6SEbD/leg1Pf1XVn+i0Z9KlNXzpDgI08K67N1s1vt770uxlBAzpIJaXCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f96440578f50ea25d2a0acb0059af15c9096a2ad0227d60d339aabb77ae1441","last_reissued_at":"2026-05-18T01:59:11.835877Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:59:11.835877Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1112.2548","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":"2026-05-18T01:59:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xYIYGlMjOwMRq6dLPNWX+mkmL5nscH2wq2XeHLx/PV+34tbU6Nzt5Wv6+iR6hFsUWmj4iaP9U8kuUbxR2XUnCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T20:35:09.976396Z"},"content_sha256":"4b2bddae6b16deafe3b38175c6cccfe36576feedaa9e32b8b894ad72392a7505","schema_version":"1.0","event_id":"sha256:4b2bddae6b16deafe3b38175c6cccfe36576feedaa9e32b8b894ad72392a7505"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:L6LEIBLY6UHKEXJKBLFQAWNPCX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Survey of H-alpha emission from thirty nearby dwarf galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"E. I. Kaisina, I. D. Karachentsev, S. S. Kaisin","submitted_at":"2011-12-12T13:59:20Z","abstract_excerpt":"Measurements of the H-alpha flux from 30 neighboring dwarf galaxies are presented. After correction for absorption, these fluxes are used to estimate the star formation rate (SFR). The SFR for 18 of the galaxies according to the H-alpha emission are compared with estimates of the SFR from FUV magnitudes obtained with the GALEX telescope. These are in good agreement over the range log[SFR] = [-3,0]M sun/yr."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.2548","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":"2026-05-18T01:59:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hxd5ZrzpxtfRqZ0iBQbDdqH9zkb0IpL/BH1HNzC0fjq20ItdS4oVCbokNbZkeqfZWZXZeVz8bovYHv1JWu9cDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T20:35:09.977000Z"},"content_sha256":"2994ef6703865a080bc8a0c37443f2a936936bf8b4a05626518d5c813d925f80","schema_version":"1.0","event_id":"sha256:2994ef6703865a080bc8a0c37443f2a936936bf8b4a05626518d5c813d925f80"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L6LEIBLY6UHKEXJKBLFQAWNPCX/bundle.json","state_url":"https://pith.science/pith/L6LEIBLY6UHKEXJKBLFQAWNPCX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L6LEIBLY6UHKEXJKBLFQAWNPCX/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":"2026-05-19T20:35:09Z","links":{"resolver":"https://pith.science/pith/L6LEIBLY6UHKEXJKBLFQAWNPCX","bundle":"https://pith.science/pith/L6LEIBLY6UHKEXJKBLFQAWNPCX/bundle.json","state":"https://pith.science/pith/L6LEIBLY6UHKEXJKBLFQAWNPCX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L6LEIBLY6UHKEXJKBLFQAWNPCX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:L6LEIBLY6UHKEXJKBLFQAWNPCX","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":"6be1c007c13934cb896e0738b2a67451239324d5ca2d87e5d8b0a4f813dd672e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-12T13:59:20Z","title_canon_sha256":"de3382f66e4f2627f3a9d29edf72a404b55124e420461dbab57a2f01f3f0586c"},"schema_version":"1.0","source":{"id":"1112.2548","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.2548","created_at":"2026-05-18T01:59:11Z"},{"alias_kind":"arxiv_version","alias_value":"1112.2548v1","created_at":"2026-05-18T01:59:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.2548","created_at":"2026-05-18T01:59:11Z"},{"alias_kind":"pith_short_12","alias_value":"L6LEIBLY6UHK","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"L6LEIBLY6UHKEXJK","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"L6LEIBLY","created_at":"2026-05-18T12:26:34Z"}],"graph_snapshots":[{"event_id":"sha256:2994ef6703865a080bc8a0c37443f2a936936bf8b4a05626518d5c813d925f80","target":"graph","created_at":"2026-05-18T01:59:11Z","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":"Measurements of the H-alpha flux from 30 neighboring dwarf galaxies are presented. After correction for absorption, these fluxes are used to estimate the star formation rate (SFR). The SFR for 18 of the galaxies according to the H-alpha emission are compared with estimates of the SFR from FUV magnitudes obtained with the GALEX telescope. These are in good agreement over the range log[SFR] = [-3,0]M sun/yr.","authors_text":"E. I. Kaisina, I. D. Karachentsev, S. S. Kaisin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-12T13:59:20Z","title":"Survey of H-alpha emission from thirty nearby dwarf galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.2548","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":"sha256:4b2bddae6b16deafe3b38175c6cccfe36576feedaa9e32b8b894ad72392a7505","target":"record","created_at":"2026-05-18T01:59:11Z","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":"6be1c007c13934cb896e0738b2a67451239324d5ca2d87e5d8b0a4f813dd672e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-12T13:59:20Z","title_canon_sha256":"de3382f66e4f2627f3a9d29edf72a404b55124e420461dbab57a2f01f3f0586c"},"schema_version":"1.0","source":{"id":"1112.2548","kind":"arxiv","version":1}},"canonical_sha256":"5f96440578f50ea25d2a0acb0059af15c9096a2ad0227d60d339aabb77ae1441","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f96440578f50ea25d2a0acb0059af15c9096a2ad0227d60d339aabb77ae1441","first_computed_at":"2026-05-18T01:59:11.835877Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:11.835877Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gc5e8bHjVo7epZp2l+mJbETXqcMyQ6SEbD/leg1Pf1XVn+i0Z9KlNXzpDgI08K67N1s1vt770uxlBAzpIJaXCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:11.836630Z","signed_message":"canonical_sha256_bytes"},"source_id":"1112.2548","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4b2bddae6b16deafe3b38175c6cccfe36576feedaa9e32b8b894ad72392a7505","sha256:2994ef6703865a080bc8a0c37443f2a936936bf8b4a05626518d5c813d925f80"],"state_sha256":"1efdac5020ae5d867db16947d0e21550ec4dfc7031ef55dfbc025f61a311370d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UjqusvEP2rjzK0ztAXwAZP0dPLRnBA1+O2qP7d/w1YX+KwONdgyD8on6kxtPlSHyWBjZ992NLXWwuidIv/uDCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T20:35:09.979104Z","bundle_sha256":"a1c768d121e205d26ac9137ea4bcdfdcb1bc2f120339cf066cf2636920dcc026"}}