{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:7OOQLGI5HI5VTMKHGEW7AMCWHJ","short_pith_number":"pith:7OOQLGI5","canonical_record":{"source":{"id":"1908.04794","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-08-13T18:00:08Z","cross_cats_sorted":[],"title_canon_sha256":"3f55ee249a3267ad4f8266d30b35f15c043082cb6dfa272fbc33f087cbd2f25f","abstract_canon_sha256":"5cb87c77858093a90a8433e0f89f40afaba728e0af3d7a411e65bdfa62f83299"},"schema_version":"1.0"},"canonical_sha256":"fb9d05991d3a3b59b147312df030563a47ae1a09d0095f147e44715794ff274f","source":{"kind":"arxiv","id":"1908.04794","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.04794","created_at":"2026-07-05T00:31:15Z"},{"alias_kind":"arxiv_version","alias_value":"1908.04794v2","created_at":"2026-07-05T00:31:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.04794","created_at":"2026-07-05T00:31:15Z"},{"alias_kind":"pith_short_12","alias_value":"7OOQLGI5HI5V","created_at":"2026-07-05T00:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"7OOQLGI5HI5VTMKH","created_at":"2026-07-05T00:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"7OOQLGI5","created_at":"2026-07-05T00:31:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:7OOQLGI5HI5VTMKHGEW7AMCWHJ","target":"record","payload":{"canonical_record":{"source":{"id":"1908.04794","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-08-13T18:00:08Z","cross_cats_sorted":[],"title_canon_sha256":"3f55ee249a3267ad4f8266d30b35f15c043082cb6dfa272fbc33f087cbd2f25f","abstract_canon_sha256":"5cb87c77858093a90a8433e0f89f40afaba728e0af3d7a411e65bdfa62f83299"},"schema_version":"1.0"},"canonical_sha256":"fb9d05991d3a3b59b147312df030563a47ae1a09d0095f147e44715794ff274f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:31:15.402856Z","signature_b64":"dHJpJmiinHECMU+1pEQmdK+4kDriy/6P4qK/8cuBBe33ZP+peD4mqbjqwu3yQwIuHIsqRGm2V/v4r80qoMZxCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fb9d05991d3a3b59b147312df030563a47ae1a09d0095f147e44715794ff274f","last_reissued_at":"2026-07-05T00:31:15.402397Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:31:15.402397Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.04794","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":"2026-07-05T00:31:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l2fDJE2X0zELjM5G83IhcnG2yv4230NA6Q9IWcmUNP5va7uR6YbbwUzwCy6XRWd9pYs/gfb+0MvirqNFA8QqDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T15:33:43.274837Z"},"content_sha256":"7b3fea17207689b28b0cdfac27cd9d4222aa046cc4d6ee705b8d78eca9877e66","schema_version":"1.0","event_id":"sha256:7b3fea17207689b28b0cdfac27cd9d4222aa046cc4d6ee705b8d78eca9877e66"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:7OOQLGI5HI5VTMKHGEW7AMCWHJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Predicting Ly$\\alpha$ Emission from Galaxies via Empirical Markers of Production and Escape in the KBSS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Allison L. Strom, Charles C. Steidel, Gwen C. Rudie, Rachel L. Theios, Ryan F. Trainor, Yuguang Chen","submitted_at":"2019-08-13T18:00:08Z","abstract_excerpt":"Ly$\\alpha$ emission is widely used to detect and confirm high-redshift galaxies and characterize the evolution of the intergalactic medium. However, many galaxies do not display Ly$\\alpha$ emission in typical spectroscopic observations, and intrinsic Ly$\\alpha$-emitters represent a potentially biased set of high-redshift galaxies. In this work, we analyze a set of 703 galaxies at $2\\lesssim z\\lesssim3$ with both Ly$\\alpha$ spectroscopy and measurements of other rest-frame ultraviolet and optical properties in order to develop an empirical model for Ly$\\alpha$ emission from galaxies and underst"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.04794","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1908.04794/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T00:31:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uu9dr4KkuNUs/Z+GW2WrIv895SxG1FfQtUNa1dvFe2TlX/XuJuImi6EktImwjMqJp09X1UvLwHzQRyQIHXYDDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T15:33:43.275360Z"},"content_sha256":"ebe428476fe2b1c7b73cdb6b76a38bc90af7e8677fe09c7ee1d8be579ab0636a","schema_version":"1.0","event_id":"sha256:ebe428476fe2b1c7b73cdb6b76a38bc90af7e8677fe09c7ee1d8be579ab0636a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7OOQLGI5HI5VTMKHGEW7AMCWHJ/bundle.json","state_url":"https://pith.science/pith/7OOQLGI5HI5VTMKHGEW7AMCWHJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7OOQLGI5HI5VTMKHGEW7AMCWHJ/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":"2026-08-16T15:33:43Z","links":{"resolver":"https://pith.science/pith/7OOQLGI5HI5VTMKHGEW7AMCWHJ","bundle":"https://pith.science/pith/7OOQLGI5HI5VTMKHGEW7AMCWHJ/bundle.json","state":"https://pith.science/pith/7OOQLGI5HI5VTMKHGEW7AMCWHJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7OOQLGI5HI5VTMKHGEW7AMCWHJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:7OOQLGI5HI5VTMKHGEW7AMCWHJ","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":"5cb87c77858093a90a8433e0f89f40afaba728e0af3d7a411e65bdfa62f83299","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-08-13T18:00:08Z","title_canon_sha256":"3f55ee249a3267ad4f8266d30b35f15c043082cb6dfa272fbc33f087cbd2f25f"},"schema_version":"1.0","source":{"id":"1908.04794","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.04794","created_at":"2026-07-05T00:31:15Z"},{"alias_kind":"arxiv_version","alias_value":"1908.04794v2","created_at":"2026-07-05T00:31:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.04794","created_at":"2026-07-05T00:31:15Z"},{"alias_kind":"pith_short_12","alias_value":"7OOQLGI5HI5V","created_at":"2026-07-05T00:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"7OOQLGI5HI5VTMKH","created_at":"2026-07-05T00:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"7OOQLGI5","created_at":"2026-07-05T00:31:15Z"}],"graph_snapshots":[{"event_id":"sha256:ebe428476fe2b1c7b73cdb6b76a38bc90af7e8677fe09c7ee1d8be579ab0636a","target":"graph","created_at":"2026-07-05T00:31:15Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1908.04794/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Ly$\\alpha$ emission is widely used to detect and confirm high-redshift galaxies and characterize the evolution of the intergalactic medium. However, many galaxies do not display Ly$\\alpha$ emission in typical spectroscopic observations, and intrinsic Ly$\\alpha$-emitters represent a potentially biased set of high-redshift galaxies. In this work, we analyze a set of 703 galaxies at $2\\lesssim z\\lesssim3$ with both Ly$\\alpha$ spectroscopy and measurements of other rest-frame ultraviolet and optical properties in order to develop an empirical model for Ly$\\alpha$ emission from galaxies and underst","authors_text":"Allison L. Strom, Charles C. Steidel, Gwen C. Rudie, Rachel L. Theios, Ryan F. Trainor, Yuguang Chen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-08-13T18:00:08Z","title":"Predicting Ly$\\alpha$ Emission from Galaxies via Empirical Markers of Production and Escape in the KBSS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.04794","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":"sha256:7b3fea17207689b28b0cdfac27cd9d4222aa046cc4d6ee705b8d78eca9877e66","target":"record","created_at":"2026-07-05T00:31:15Z","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":"5cb87c77858093a90a8433e0f89f40afaba728e0af3d7a411e65bdfa62f83299","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-08-13T18:00:08Z","title_canon_sha256":"3f55ee249a3267ad4f8266d30b35f15c043082cb6dfa272fbc33f087cbd2f25f"},"schema_version":"1.0","source":{"id":"1908.04794","kind":"arxiv","version":2}},"canonical_sha256":"fb9d05991d3a3b59b147312df030563a47ae1a09d0095f147e44715794ff274f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fb9d05991d3a3b59b147312df030563a47ae1a09d0095f147e44715794ff274f","first_computed_at":"2026-07-05T00:31:15.402397Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:31:15.402397Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dHJpJmiinHECMU+1pEQmdK+4kDriy/6P4qK/8cuBBe33ZP+peD4mqbjqwu3yQwIuHIsqRGm2V/v4r80qoMZxCA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:31:15.402856Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.04794","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7b3fea17207689b28b0cdfac27cd9d4222aa046cc4d6ee705b8d78eca9877e66","sha256:ebe428476fe2b1c7b73cdb6b76a38bc90af7e8677fe09c7ee1d8be579ab0636a"],"state_sha256":"85d2ca95cc9f7b3fead114dc52d62bdabc5d178bdfcd4c934fba9e6b046cab6b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ToF728OkYFckhPduoUJd19H2kngfTRerN9WKdjQuVFZzFInMWBmBy4PXZM5krlpZ3LhUkMliGLUjS1dhzapuCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T15:33:43.280571Z","bundle_sha256":"9987d8d60dc9d306416901710577c57d090fc3c207b1c3f02cae1fe370266333"}}