{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:IX7JJMBWX3PUFDDCSHKMIFTGN3","short_pith_number":"pith:IX7JJMBW","canonical_record":{"source":{"id":"1302.7042","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-02-28T00:29:07Z","cross_cats_sorted":[],"title_canon_sha256":"42c4b4c166ce9ef647fa87b97d116c0e6e5d3103c77f17ccf5217a24a75df319","abstract_canon_sha256":"3f369f74004a32b4818e3384531019372ef61bb123ebce841a3abbce502f332e"},"schema_version":"1.0"},"canonical_sha256":"45fe94b036bedf428c6291d4c416666edcadc28a737248677a5caacaac2004a6","source":{"kind":"arxiv","id":"1302.7042","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.7042","created_at":"2026-05-18T01:51:26Z"},{"alias_kind":"arxiv_version","alias_value":"1302.7042v2","created_at":"2026-05-18T01:51:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.7042","created_at":"2026-05-18T01:51:26Z"},{"alias_kind":"pith_short_12","alias_value":"IX7JJMBWX3PU","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"IX7JJMBWX3PUFDDC","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"IX7JJMBW","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:IX7JJMBWX3PUFDDCSHKMIFTGN3","target":"record","payload":{"canonical_record":{"source":{"id":"1302.7042","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-02-28T00:29:07Z","cross_cats_sorted":[],"title_canon_sha256":"42c4b4c166ce9ef647fa87b97d116c0e6e5d3103c77f17ccf5217a24a75df319","abstract_canon_sha256":"3f369f74004a32b4818e3384531019372ef61bb123ebce841a3abbce502f332e"},"schema_version":"1.0"},"canonical_sha256":"45fe94b036bedf428c6291d4c416666edcadc28a737248677a5caacaac2004a6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:51:26.343333Z","signature_b64":"uJpcIPO6XqgMAn/2f3dg8Md6GRuKdrPp/lP+FchGHu6P6MY/nxv6+Eef+CwV1+nfUFZ3bq79ezaFl4wDQ/oACg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"45fe94b036bedf428c6291d4c416666edcadc28a737248677a5caacaac2004a6","last_reissued_at":"2026-05-18T01:51:26.342665Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:51:26.342665Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1302.7042","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":"2026-05-18T01:51:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4rBo8A3o1N4HmcmRFgOCmwgZUKAEAJxAaq4g/6j/9Gjr2llbR9QHHINX/aZvrSMe3qGkgvuahKzGoUM8ll+XAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T15:01:26.794273Z"},"content_sha256":"ab1d873875ccfa3b335243fe63ef23a63b56d404b36f46f7e5f751c91833bc69","schema_version":"1.0","event_id":"sha256:ab1d873875ccfa3b335243fe63ef23a63b56d404b36f46f7e5f751c91833bc69"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:IX7JJMBWX3PUFDDCSHKMIFTGN3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Lyman-alpha line and continuum radiative transfer in a clumpy interstellar medium","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Daniel Schaerer, Florent Duval, G\\\"oran \\\"Ostlin, Peter Laursen","submitted_at":"2013-02-28T00:29:07Z","abstract_excerpt":"Aims: We aim to study the effects of an inhomogeneous interstellar medium (ISM) on the strength and the shape of the Lyman alpha (Lya) line in starburst galaxies. Methods: Using our 3D Monte Carlo Lya radiation transfer code, we study the radiative transfer of Lya, UV and optical continuum photons in homogeneous and clumpy shells of neutral hydrogen and dust surrounding a central source. Our simulations predict the Lya and continuum escape fraction, the Lya equivalent width EW(Lya), the Lya line profile and their dependence on the gas geometry and the main input physical parameters. Results: T"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.7042","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":"2026-05-18T01:51:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eNY5RAd67nGyv+HElKCB+BHTw5HD3Um61g7gOBaUJZPKRlMNngQeRqBm/gCuxbqsK0m/H1WVUv55x/caghpuDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T15:01:26.794944Z"},"content_sha256":"0f3fe1331f58dc46bd224d41dcaf42f6b5c4350f60c2f177227b7572c794a8c6","schema_version":"1.0","event_id":"sha256:0f3fe1331f58dc46bd224d41dcaf42f6b5c4350f60c2f177227b7572c794a8c6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IX7JJMBWX3PUFDDCSHKMIFTGN3/bundle.json","state_url":"https://pith.science/pith/IX7JJMBWX3PUFDDCSHKMIFTGN3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IX7JJMBWX3PUFDDCSHKMIFTGN3/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":"2026-05-26T15:01:26Z","links":{"resolver":"https://pith.science/pith/IX7JJMBWX3PUFDDCSHKMIFTGN3","bundle":"https://pith.science/pith/IX7JJMBWX3PUFDDCSHKMIFTGN3/bundle.json","state":"https://pith.science/pith/IX7JJMBWX3PUFDDCSHKMIFTGN3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IX7JJMBWX3PUFDDCSHKMIFTGN3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:IX7JJMBWX3PUFDDCSHKMIFTGN3","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":"3f369f74004a32b4818e3384531019372ef61bb123ebce841a3abbce502f332e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-02-28T00:29:07Z","title_canon_sha256":"42c4b4c166ce9ef647fa87b97d116c0e6e5d3103c77f17ccf5217a24a75df319"},"schema_version":"1.0","source":{"id":"1302.7042","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.7042","created_at":"2026-05-18T01:51:26Z"},{"alias_kind":"arxiv_version","alias_value":"1302.7042v2","created_at":"2026-05-18T01:51:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.7042","created_at":"2026-05-18T01:51:26Z"},{"alias_kind":"pith_short_12","alias_value":"IX7JJMBWX3PU","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"IX7JJMBWX3PUFDDC","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"IX7JJMBW","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:0f3fe1331f58dc46bd224d41dcaf42f6b5c4350f60c2f177227b7572c794a8c6","target":"graph","created_at":"2026-05-18T01:51:26Z","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":"Aims: We aim to study the effects of an inhomogeneous interstellar medium (ISM) on the strength and the shape of the Lyman alpha (Lya) line in starburst galaxies. Methods: Using our 3D Monte Carlo Lya radiation transfer code, we study the radiative transfer of Lya, UV and optical continuum photons in homogeneous and clumpy shells of neutral hydrogen and dust surrounding a central source. Our simulations predict the Lya and continuum escape fraction, the Lya equivalent width EW(Lya), the Lya line profile and their dependence on the gas geometry and the main input physical parameters. Results: T","authors_text":"Daniel Schaerer, Florent Duval, G\\\"oran \\\"Ostlin, Peter Laursen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-02-28T00:29:07Z","title":"Lyman-alpha line and continuum radiative transfer in a clumpy interstellar medium"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.7042","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:ab1d873875ccfa3b335243fe63ef23a63b56d404b36f46f7e5f751c91833bc69","target":"record","created_at":"2026-05-18T01:51:26Z","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":"3f369f74004a32b4818e3384531019372ef61bb123ebce841a3abbce502f332e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-02-28T00:29:07Z","title_canon_sha256":"42c4b4c166ce9ef647fa87b97d116c0e6e5d3103c77f17ccf5217a24a75df319"},"schema_version":"1.0","source":{"id":"1302.7042","kind":"arxiv","version":2}},"canonical_sha256":"45fe94b036bedf428c6291d4c416666edcadc28a737248677a5caacaac2004a6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"45fe94b036bedf428c6291d4c416666edcadc28a737248677a5caacaac2004a6","first_computed_at":"2026-05-18T01:51:26.342665Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:51:26.342665Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uJpcIPO6XqgMAn/2f3dg8Md6GRuKdrPp/lP+FchGHu6P6MY/nxv6+Eef+CwV1+nfUFZ3bq79ezaFl4wDQ/oACg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:51:26.343333Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.7042","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ab1d873875ccfa3b335243fe63ef23a63b56d404b36f46f7e5f751c91833bc69","sha256:0f3fe1331f58dc46bd224d41dcaf42f6b5c4350f60c2f177227b7572c794a8c6"],"state_sha256":"cf96314b31a9a2390f6af8dfd052d69ba65ffcdb252ef72b5ff4dea4933c5aed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"113oXgoSXmQmW+beNW4QCUkYsX4Zap+sIpL/TT6Lneu1Vjou1shMSNedrljJ3AdQC28JsROBzRCI4QTrX/0MAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T15:01:26.797680Z","bundle_sha256":"8c6d25103f614c0be3916489566de8bf3f54dc089aeb7d11c76c961082f95419"}}