{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:5B7YLXNBJNCTCAJURSEEBNILKP","short_pith_number":"pith:5B7YLXNB","canonical_record":{"source":{"id":"astro-ph/0509780","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-09-26T20:49:17Z","cross_cats_sorted":[],"title_canon_sha256":"40bfbed4a05f86d4fcc993f9e15d2b797af1a8f61d975d40cc953699b9e20a84","abstract_canon_sha256":"920ba619f58592bb2fc551d2b886b91574c59eadc25bfec8e6481ce15bbe6d82"},"schema_version":"1.0"},"canonical_sha256":"e87f85dda14b453101348c8840b50b53f61e04d389774efc5246482881eab9dc","source":{"kind":"arxiv","id":"astro-ph/0509780","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0509780","created_at":"2026-05-18T01:07:26Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0509780v1","created_at":"2026-05-18T01:07:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0509780","created_at":"2026-05-18T01:07:26Z"},{"alias_kind":"pith_short_12","alias_value":"5B7YLXNBJNCT","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"5B7YLXNBJNCTCAJU","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"5B7YLXNB","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:5B7YLXNBJNCTCAJURSEEBNILKP","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0509780","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-09-26T20:49:17Z","cross_cats_sorted":[],"title_canon_sha256":"40bfbed4a05f86d4fcc993f9e15d2b797af1a8f61d975d40cc953699b9e20a84","abstract_canon_sha256":"920ba619f58592bb2fc551d2b886b91574c59eadc25bfec8e6481ce15bbe6d82"},"schema_version":"1.0"},"canonical_sha256":"e87f85dda14b453101348c8840b50b53f61e04d389774efc5246482881eab9dc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:26.688520Z","signature_b64":"svzjsX2mmR3logTN9xlu0W9Uo3buyq9OPckvCzHM1JM8xQnGF3axJuFI/1wkLiKONexs1diLcY2Cu3its7ATCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e87f85dda14b453101348c8840b50b53f61e04d389774efc5246482881eab9dc","last_reissued_at":"2026-05-18T01:07:26.687853Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:26.687853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0509780","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":"2026-05-18T01:07:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+z7DaJPvl7D72+h+a5d3JnTTQ8TFAWp5NZgOrB2whVEVIO/gnnoqwke+p8RMHOCivyDksDkqrgCwVYiyFFycAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T02:51:33.450459Z"},"content_sha256":"b3c792e662f496821865179241e651e1cd7e26b43c7bf815bee545e2921ab773","schema_version":"1.0","event_id":"sha256:b3c792e662f496821865179241e651e1cd7e26b43c7bf815bee545e2921ab773"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:5B7YLXNBJNCTCAJURSEEBNILKP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing Reionization with the Cosmological Proximity Effect and High-Redshift Supernovae Rates","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Andrei Mesinger","submitted_at":"2005-09-26T20:49:17Z","abstract_excerpt":"We develop and assess the potential of several powerful techniques, designed to investigate the details of reionization. First, we present a procedure to probe the neutral fraction, x_HI, using the Lyman alpha transmission statistics of high-redshift (z > 6) sources. We find that only tens of bright quasar spectra could distinguish between x_HI ~ 1 and x_HI < 0.01. A rudimentary application of such a technique on quasar SDSS J1030+0524 has yielded compelling evidence of a large neutral fraction (x_HI > 0.2) at z ~ 6. We also generate the observable, high-z supernovae (SNe) rates and quantify t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0509780","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":"2026-05-18T01:07:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9Hop2hH6DW1M8YACmhDPcPf5Lc3169uy+csijSG/jGVZQi3+87l2ZZoMy8XLGsBNKLeDFH3Iq91K2eJB08vmAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T02:51:33.450847Z"},"content_sha256":"a088d571994228e54ab554ac35645997aa322a1c365b756a87ddbe0965f19ae6","schema_version":"1.0","event_id":"sha256:a088d571994228e54ab554ac35645997aa322a1c365b756a87ddbe0965f19ae6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5B7YLXNBJNCTCAJURSEEBNILKP/bundle.json","state_url":"https://pith.science/pith/5B7YLXNBJNCTCAJURSEEBNILKP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5B7YLXNBJNCTCAJURSEEBNILKP/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":"2026-06-08T02:51:33Z","links":{"resolver":"https://pith.science/pith/5B7YLXNBJNCTCAJURSEEBNILKP","bundle":"https://pith.science/pith/5B7YLXNBJNCTCAJURSEEBNILKP/bundle.json","state":"https://pith.science/pith/5B7YLXNBJNCTCAJURSEEBNILKP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5B7YLXNBJNCTCAJURSEEBNILKP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:5B7YLXNBJNCTCAJURSEEBNILKP","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":"920ba619f58592bb2fc551d2b886b91574c59eadc25bfec8e6481ce15bbe6d82","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-09-26T20:49:17Z","title_canon_sha256":"40bfbed4a05f86d4fcc993f9e15d2b797af1a8f61d975d40cc953699b9e20a84"},"schema_version":"1.0","source":{"id":"astro-ph/0509780","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0509780","created_at":"2026-05-18T01:07:26Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0509780v1","created_at":"2026-05-18T01:07:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0509780","created_at":"2026-05-18T01:07:26Z"},{"alias_kind":"pith_short_12","alias_value":"5B7YLXNBJNCT","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"5B7YLXNBJNCTCAJU","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"5B7YLXNB","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:a088d571994228e54ab554ac35645997aa322a1c365b756a87ddbe0965f19ae6","target":"graph","created_at":"2026-05-18T01:07:26Z","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":"We develop and assess the potential of several powerful techniques, designed to investigate the details of reionization. First, we present a procedure to probe the neutral fraction, x_HI, using the Lyman alpha transmission statistics of high-redshift (z > 6) sources. We find that only tens of bright quasar spectra could distinguish between x_HI ~ 1 and x_HI < 0.01. A rudimentary application of such a technique on quasar SDSS J1030+0524 has yielded compelling evidence of a large neutral fraction (x_HI > 0.2) at z ~ 6. We also generate the observable, high-z supernovae (SNe) rates and quantify t","authors_text":"Andrei Mesinger","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-09-26T20:49:17Z","title":"Probing Reionization with the Cosmological Proximity Effect and High-Redshift Supernovae Rates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0509780","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:b3c792e662f496821865179241e651e1cd7e26b43c7bf815bee545e2921ab773","target":"record","created_at":"2026-05-18T01:07:26Z","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":"920ba619f58592bb2fc551d2b886b91574c59eadc25bfec8e6481ce15bbe6d82","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-09-26T20:49:17Z","title_canon_sha256":"40bfbed4a05f86d4fcc993f9e15d2b797af1a8f61d975d40cc953699b9e20a84"},"schema_version":"1.0","source":{"id":"astro-ph/0509780","kind":"arxiv","version":1}},"canonical_sha256":"e87f85dda14b453101348c8840b50b53f61e04d389774efc5246482881eab9dc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e87f85dda14b453101348c8840b50b53f61e04d389774efc5246482881eab9dc","first_computed_at":"2026-05-18T01:07:26.687853Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:26.687853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"svzjsX2mmR3logTN9xlu0W9Uo3buyq9OPckvCzHM1JM8xQnGF3axJuFI/1wkLiKONexs1diLcY2Cu3its7ATCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:26.688520Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0509780","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b3c792e662f496821865179241e651e1cd7e26b43c7bf815bee545e2921ab773","sha256:a088d571994228e54ab554ac35645997aa322a1c365b756a87ddbe0965f19ae6"],"state_sha256":"c2b54aae13763da8f41c2b7a23736359ed365e1dfa7854c696198722a116fc08"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7nLtIz4uApRbr2A8cIfi3eBs7lJ0v3DW7P7oRN2zPHkS6YXGBOp3meuPgKavGzN0iWIgGWgRvZV7Aat17YPICg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T02:51:33.453800Z","bundle_sha256":"169a1b006c99aa694af96f67f4eda3636ceabfb6ec1759a83656885417f15d85"}}