{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1997:Y3EQH3S7C4XE3WVG2G42SGIV3Q","short_pith_number":"pith:Y3EQH3S7","canonical_record":{"source":{"id":"astro-ph/9711311","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1997-11-26T02:19:26Z","cross_cats_sorted":[],"title_canon_sha256":"6fe18504d1d4c90afc8bde4fa8bdd284d25be201f4430dfc9c610a50c01c0de3","abstract_canon_sha256":"8d397f6a479d487fcdc6639795155a780a6ce9591500144000036a0a6484e49d"},"schema_version":"1.0"},"canonical_sha256":"c6c903ee5f172e4ddaa6d1b9a91915dc10f90084413a418b4940b8d780708514","source":{"kind":"arxiv","id":"astro-ph/9711311","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9711311","created_at":"2026-07-04T16:03:29Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9711311v1","created_at":"2026-07-04T16:03:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9711311","created_at":"2026-07-04T16:03:29Z"},{"alias_kind":"pith_short_12","alias_value":"Y3EQH3S7C4XE","created_at":"2026-07-04T16:03:29Z"},{"alias_kind":"pith_short_16","alias_value":"Y3EQH3S7C4XE3WVG","created_at":"2026-07-04T16:03:29Z"},{"alias_kind":"pith_short_8","alias_value":"Y3EQH3S7","created_at":"2026-07-04T16:03:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1997:Y3EQH3S7C4XE3WVG2G42SGIV3Q","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9711311","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1997-11-26T02:19:26Z","cross_cats_sorted":[],"title_canon_sha256":"6fe18504d1d4c90afc8bde4fa8bdd284d25be201f4430dfc9c610a50c01c0de3","abstract_canon_sha256":"8d397f6a479d487fcdc6639795155a780a6ce9591500144000036a0a6484e49d"},"schema_version":"1.0"},"canonical_sha256":"c6c903ee5f172e4ddaa6d1b9a91915dc10f90084413a418b4940b8d780708514","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:03:29.396620Z","signature_b64":"SmEFSSWkXoFwvr0d5qJ0Is33rO3DoeZ6m1tT4Jlx8Zw/CyDh9uV8u23JYtCumWk4l5VFhO6M+vW54YwLOhiyBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c6c903ee5f172e4ddaa6d1b9a91915dc10f90084413a418b4940b8d780708514","last_reissued_at":"2026-07-04T16:03:29.396236Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:03:29.396236Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9711311","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":"2026-07-04T16:03:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QlNfL4jQ1nUxgYeWRsueHUW5BzULPgiFZCNj5Ra4ZGdudm7ZoydB39ymlyzqq9ACGX73JEZqjkbW9M3P1kV8AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T00:18:57.088738Z"},"content_sha256":"802bc42e8ea2ba811715ddd694aac38f2de436025a17cbbe37e9cdcbd96301b7","schema_version":"1.0","event_id":"sha256:802bc42e8ea2ba811715ddd694aac38f2de436025a17cbbe37e9cdcbd96301b7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1997:Y3EQH3S7C4XE3WVG2G42SGIV3Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extinction and the Radial Distribution of Supernova Properties in Their Parent Galaxies","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D. Branch, J. Deaton (U. of Oklahoma), K. Hatano","submitted_at":"1997-11-26T02:19:26Z","abstract_excerpt":"We use a Monte Carlo technique and assumed spatial distributions of dust and supernova (SN) progenitors in a simple model of a characteristic SN--producing disk galaxy to explore the effects of extinction on the radial distributions of SN properties in their parent galaxies. The model extinction distributions and projected radial number distributions are presented for various SN types. Even though the model has no core-collapse SNe within three kpc of the center, a considerable fraction of the core-collapse SNe are projected into the inner regions of inclined parent galaxies owing to their sma"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9711311","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/astro-ph/9711311/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":"2026-07-04T16:03:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JlU28yrnvpdr+2hd4BV9Kx0oQfAISJ8X8HvJpKvJl2ACq6Mr+bdDV6sfNZXCKFbXv2IcqH5uJ0bGRXMN56YtBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T00:18:57.089093Z"},"content_sha256":"c420914ee18467b439598d621e34ec529c32577223c7a9c8a451ed3ac714bce7","schema_version":"1.0","event_id":"sha256:c420914ee18467b439598d621e34ec529c32577223c7a9c8a451ed3ac714bce7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Y3EQH3S7C4XE3WVG2G42SGIV3Q/bundle.json","state_url":"https://pith.science/pith/Y3EQH3S7C4XE3WVG2G42SGIV3Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Y3EQH3S7C4XE3WVG2G42SGIV3Q/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":"2026-08-15T00:18:57Z","links":{"resolver":"https://pith.science/pith/Y3EQH3S7C4XE3WVG2G42SGIV3Q","bundle":"https://pith.science/pith/Y3EQH3S7C4XE3WVG2G42SGIV3Q/bundle.json","state":"https://pith.science/pith/Y3EQH3S7C4XE3WVG2G42SGIV3Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Y3EQH3S7C4XE3WVG2G42SGIV3Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1997:Y3EQH3S7C4XE3WVG2G42SGIV3Q","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":"8d397f6a479d487fcdc6639795155a780a6ce9591500144000036a0a6484e49d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1997-11-26T02:19:26Z","title_canon_sha256":"6fe18504d1d4c90afc8bde4fa8bdd284d25be201f4430dfc9c610a50c01c0de3"},"schema_version":"1.0","source":{"id":"astro-ph/9711311","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9711311","created_at":"2026-07-04T16:03:29Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9711311v1","created_at":"2026-07-04T16:03:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9711311","created_at":"2026-07-04T16:03:29Z"},{"alias_kind":"pith_short_12","alias_value":"Y3EQH3S7C4XE","created_at":"2026-07-04T16:03:29Z"},{"alias_kind":"pith_short_16","alias_value":"Y3EQH3S7C4XE3WVG","created_at":"2026-07-04T16:03:29Z"},{"alias_kind":"pith_short_8","alias_value":"Y3EQH3S7","created_at":"2026-07-04T16:03:29Z"}],"graph_snapshots":[{"event_id":"sha256:c420914ee18467b439598d621e34ec529c32577223c7a9c8a451ed3ac714bce7","target":"graph","created_at":"2026-07-04T16:03:29Z","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/astro-ph/9711311/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We use a Monte Carlo technique and assumed spatial distributions of dust and supernova (SN) progenitors in a simple model of a characteristic SN--producing disk galaxy to explore the effects of extinction on the radial distributions of SN properties in their parent galaxies. The model extinction distributions and projected radial number distributions are presented for various SN types. Even though the model has no core-collapse SNe within three kpc of the center, a considerable fraction of the core-collapse SNe are projected into the inner regions of inclined parent galaxies owing to their sma","authors_text":"D. Branch, J. Deaton (U. of Oklahoma), K. Hatano","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1997-11-26T02:19:26Z","title":"Extinction and the Radial Distribution of Supernova Properties in Their Parent Galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9711311","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":"sha256:802bc42e8ea2ba811715ddd694aac38f2de436025a17cbbe37e9cdcbd96301b7","target":"record","created_at":"2026-07-04T16:03:29Z","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":"8d397f6a479d487fcdc6639795155a780a6ce9591500144000036a0a6484e49d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1997-11-26T02:19:26Z","title_canon_sha256":"6fe18504d1d4c90afc8bde4fa8bdd284d25be201f4430dfc9c610a50c01c0de3"},"schema_version":"1.0","source":{"id":"astro-ph/9711311","kind":"arxiv","version":1}},"canonical_sha256":"c6c903ee5f172e4ddaa6d1b9a91915dc10f90084413a418b4940b8d780708514","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c6c903ee5f172e4ddaa6d1b9a91915dc10f90084413a418b4940b8d780708514","first_computed_at":"2026-07-04T16:03:29.396236Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:03:29.396236Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SmEFSSWkXoFwvr0d5qJ0Is33rO3DoeZ6m1tT4Jlx8Zw/CyDh9uV8u23JYtCumWk4l5VFhO6M+vW54YwLOhiyBQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:03:29.396620Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9711311","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:802bc42e8ea2ba811715ddd694aac38f2de436025a17cbbe37e9cdcbd96301b7","sha256:c420914ee18467b439598d621e34ec529c32577223c7a9c8a451ed3ac714bce7"],"state_sha256":"90e4bd56ae312c4a555f92bd7e9180a1e4f7df883e2f115ce5818e5d0e851588"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ib28pRiDz9KBAEOPtJaZmCzqjAccJpeKsyKSUO4EsYrsq5kankbaGyRv8xOWhMuhIOcaY5Mz1BbpeYiiCIvHDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T00:18:57.093335Z","bundle_sha256":"b5555aebbbdab792da81e67a8b3958c1de02ff85f8a14cb60bcfa8a5ad827dff"}}