{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:66SGVQEEDVRJXQIAILX6EWEEVB","short_pith_number":"pith:66SGVQEE","canonical_record":{"source":{"id":"2307.02539","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-07-05T18:00:02Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"4a8822af8ed968dc6a5afaee5e7d4250af8da6f20b2b43a4c3bd6920baaf8d25","abstract_canon_sha256":"09949c2f072e9809ae000ad938d017fb8ca9d08e435aa3618f11d5a143ff7fd8"},"schema_version":"1.0"},"canonical_sha256":"f7a46ac0841d629bc10042efe25884a876f7f8e9b492de051aded68bd30ed944","source":{"kind":"arxiv","id":"2307.02539","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.02539","created_at":"2026-07-05T06:28:21Z"},{"alias_kind":"arxiv_version","alias_value":"2307.02539v1","created_at":"2026-07-05T06:28:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.02539","created_at":"2026-07-05T06:28:21Z"},{"alias_kind":"pith_short_12","alias_value":"66SGVQEEDVRJ","created_at":"2026-07-05T06:28:21Z"},{"alias_kind":"pith_short_16","alias_value":"66SGVQEEDVRJXQIA","created_at":"2026-07-05T06:28:21Z"},{"alias_kind":"pith_short_8","alias_value":"66SGVQEE","created_at":"2026-07-05T06:28:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:66SGVQEEDVRJXQIAILX6EWEEVB","target":"record","payload":{"canonical_record":{"source":{"id":"2307.02539","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-07-05T18:00:02Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"4a8822af8ed968dc6a5afaee5e7d4250af8da6f20b2b43a4c3bd6920baaf8d25","abstract_canon_sha256":"09949c2f072e9809ae000ad938d017fb8ca9d08e435aa3618f11d5a143ff7fd8"},"schema_version":"1.0"},"canonical_sha256":"f7a46ac0841d629bc10042efe25884a876f7f8e9b492de051aded68bd30ed944","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:28:21.270221Z","signature_b64":"tm5Kmijk+d2PCpPuYkNMkCM8qW3WcC0Ol5EyOd8/j0iC/bf2eubkoqxKRi9AyKXOy6rq3sF25TcLGvBxr1oLDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f7a46ac0841d629bc10042efe25884a876f7f8e9b492de051aded68bd30ed944","last_reissued_at":"2026-07-05T06:28:21.269726Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:28:21.269726Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2307.02539","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":"2026-07-05T06:28:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zc3oKW42WSc1L2uGeh2tUh1Bc500UHYXPm1r812461CEnj0s1DQSqgB49bLRrjr60RMpIvLBQtfFe1A77AKSAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T05:07:41.819494Z"},"content_sha256":"ed7b579afef917b93659fe5d5c7b03d51eb9e46ec617049fce94498504fc5a20","schema_version":"1.0","event_id":"sha256:ed7b579afef917b93659fe5d5c7b03d51eb9e46ec617049fce94498504fc5a20"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:66SGVQEEDVRJXQIAILX6EWEEVB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A comprehensive optical search for pre-explosion outbursts from the quiescent progenitor of SN~2023ixf","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"Daniel E. Reichart, Daryl Janzen, David J. Sand, Emily Hoang, Griffin Hosseinzadeh, Jacob E. Jencson, Jeniveve Pearson, Jennifer E. Andrews, Joshua Haislip, K. Azalee Bostroem, Manisha Shrestha, Michael Lundquist, Nicolas E. Meza Retamal, Stefano Valenti, Vladimir Kouprianov, Yize Dong","submitted_at":"2023-07-05T18:00:02Z","abstract_excerpt":"We perform a comprehensive search for optical precursor emission at the position of SN~2023ixf using data from the DLT40, ZTF and ATLAS surveys. By comparing the current data set with precursor outburst hydrodynamical model light curves, we find that the probability of a significant outburst within five years of explosion is low, and the circumstellar material (CSM) ejected during any possible precursor outburst is likely smaller than $\\sim$0.015\\msun. By comparing to a set of toy models, we find that, if there was a precursor outburst, the duration must have been shorter than $\\sim$100 days f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.02539","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2307.02539/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":"2026-07-05T06:28:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aKI8q23Ayw3hVy72aTAN7ytqq3HbxD0W4gy/dhg/MM80yY/ib014jcPEjtCQfDZtmmVYH8A7LtZ0P4Hjz6gfBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T05:07:41.820187Z"},"content_sha256":"f8a9aa2dae5754ba492874ee3c3d2868cb5523724a3b8ef31dbeb73257cc8a0d","schema_version":"1.0","event_id":"sha256:f8a9aa2dae5754ba492874ee3c3d2868cb5523724a3b8ef31dbeb73257cc8a0d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/66SGVQEEDVRJXQIAILX6EWEEVB/bundle.json","state_url":"https://pith.science/pith/66SGVQEEDVRJXQIAILX6EWEEVB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/66SGVQEEDVRJXQIAILX6EWEEVB/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":"2026-08-10T05:07:41Z","links":{"resolver":"https://pith.science/pith/66SGVQEEDVRJXQIAILX6EWEEVB","bundle":"https://pith.science/pith/66SGVQEEDVRJXQIAILX6EWEEVB/bundle.json","state":"https://pith.science/pith/66SGVQEEDVRJXQIAILX6EWEEVB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/66SGVQEEDVRJXQIAILX6EWEEVB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:66SGVQEEDVRJXQIAILX6EWEEVB","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":"09949c2f072e9809ae000ad938d017fb8ca9d08e435aa3618f11d5a143ff7fd8","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-07-05T18:00:02Z","title_canon_sha256":"4a8822af8ed968dc6a5afaee5e7d4250af8da6f20b2b43a4c3bd6920baaf8d25"},"schema_version":"1.0","source":{"id":"2307.02539","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.02539","created_at":"2026-07-05T06:28:21Z"},{"alias_kind":"arxiv_version","alias_value":"2307.02539v1","created_at":"2026-07-05T06:28:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.02539","created_at":"2026-07-05T06:28:21Z"},{"alias_kind":"pith_short_12","alias_value":"66SGVQEEDVRJ","created_at":"2026-07-05T06:28:21Z"},{"alias_kind":"pith_short_16","alias_value":"66SGVQEEDVRJXQIA","created_at":"2026-07-05T06:28:21Z"},{"alias_kind":"pith_short_8","alias_value":"66SGVQEE","created_at":"2026-07-05T06:28:21Z"}],"graph_snapshots":[{"event_id":"sha256:f8a9aa2dae5754ba492874ee3c3d2868cb5523724a3b8ef31dbeb73257cc8a0d","target":"graph","created_at":"2026-07-05T06:28:21Z","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/2307.02539/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We perform a comprehensive search for optical precursor emission at the position of SN~2023ixf using data from the DLT40, ZTF and ATLAS surveys. By comparing the current data set with precursor outburst hydrodynamical model light curves, we find that the probability of a significant outburst within five years of explosion is low, and the circumstellar material (CSM) ejected during any possible precursor outburst is likely smaller than $\\sim$0.015\\msun. By comparing to a set of toy models, we find that, if there was a precursor outburst, the duration must have been shorter than $\\sim$100 days f","authors_text":"Daniel E. Reichart, Daryl Janzen, David J. Sand, Emily Hoang, Griffin Hosseinzadeh, Jacob E. Jencson, Jeniveve Pearson, Jennifer E. Andrews, Joshua Haislip, K. Azalee Bostroem, Manisha Shrestha, Michael Lundquist, Nicolas E. Meza Retamal, Stefano Valenti, Vladimir Kouprianov, Yize Dong","cross_cats":["astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-07-05T18:00:02Z","title":"A comprehensive optical search for pre-explosion outbursts from the quiescent progenitor of SN~2023ixf"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.02539","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:ed7b579afef917b93659fe5d5c7b03d51eb9e46ec617049fce94498504fc5a20","target":"record","created_at":"2026-07-05T06:28:21Z","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":"09949c2f072e9809ae000ad938d017fb8ca9d08e435aa3618f11d5a143ff7fd8","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-07-05T18:00:02Z","title_canon_sha256":"4a8822af8ed968dc6a5afaee5e7d4250af8da6f20b2b43a4c3bd6920baaf8d25"},"schema_version":"1.0","source":{"id":"2307.02539","kind":"arxiv","version":1}},"canonical_sha256":"f7a46ac0841d629bc10042efe25884a876f7f8e9b492de051aded68bd30ed944","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f7a46ac0841d629bc10042efe25884a876f7f8e9b492de051aded68bd30ed944","first_computed_at":"2026-07-05T06:28:21.269726Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:28:21.269726Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tm5Kmijk+d2PCpPuYkNMkCM8qW3WcC0Ol5EyOd8/j0iC/bf2eubkoqxKRi9AyKXOy6rq3sF25TcLGvBxr1oLDg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:28:21.270221Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.02539","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ed7b579afef917b93659fe5d5c7b03d51eb9e46ec617049fce94498504fc5a20","sha256:f8a9aa2dae5754ba492874ee3c3d2868cb5523724a3b8ef31dbeb73257cc8a0d"],"state_sha256":"9e329e2018add9de690d4c0d28951bf7334e2754f8c4a4546906453854355e16"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xre6G1IFRa7dIP+dN4ve+y4bKU7GaBa83nnXhP60p3NIcd7EuN2AMPP0+0iuii65YlLaWOhcAi+pG+9p79vJCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T05:07:41.826717Z","bundle_sha256":"7d95680c6004fd6f267cfec1ed20a83ab58ba43b0ae1ff0f2db36c0c4df87751"}}