{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:4D2TKWMLY27IKOIOWXDDXDKHDI","short_pith_number":"pith:4D2TKWML","canonical_record":{"source":{"id":"2504.04393","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-04-06T07:26:47Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"1d7eba32c0d6f77caa8cd5aef1c82221e63b9c202fe4327a1ed217e3fd5b16c7","abstract_canon_sha256":"ad055dc63f9316f9a582da8787c6b8aa8650a17c76dfbc945f8c68859dbe46af"},"schema_version":"1.0"},"canonical_sha256":"e0f535598bc6be85390eb5c63b8d471a1b97f2f3b9b0161e973a116b17585add","source":{"kind":"arxiv","id":"2504.04393","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.04393","created_at":"2026-07-05T10:45:23Z"},{"alias_kind":"arxiv_version","alias_value":"2504.04393v1","created_at":"2026-07-05T10:45:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.04393","created_at":"2026-07-05T10:45:23Z"},{"alias_kind":"pith_short_12","alias_value":"4D2TKWMLY27I","created_at":"2026-07-05T10:45:23Z"},{"alias_kind":"pith_short_16","alias_value":"4D2TKWMLY27IKOIO","created_at":"2026-07-05T10:45:23Z"},{"alias_kind":"pith_short_8","alias_value":"4D2TKWML","created_at":"2026-07-05T10:45:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:4D2TKWMLY27IKOIOWXDDXDKHDI","target":"record","payload":{"canonical_record":{"source":{"id":"2504.04393","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-04-06T07:26:47Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"1d7eba32c0d6f77caa8cd5aef1c82221e63b9c202fe4327a1ed217e3fd5b16c7","abstract_canon_sha256":"ad055dc63f9316f9a582da8787c6b8aa8650a17c76dfbc945f8c68859dbe46af"},"schema_version":"1.0"},"canonical_sha256":"e0f535598bc6be85390eb5c63b8d471a1b97f2f3b9b0161e973a116b17585add","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:45:23.201779Z","signature_b64":"uWa7kBr3YlBDvizH34BmVUN0I9lwOVUSTV6YvP3V2ozyR2nLPjSjLhCsqtPH5osZU2aCKaZWfWoJKN0RsxtSDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e0f535598bc6be85390eb5c63b8d471a1b97f2f3b9b0161e973a116b17585add","last_reissued_at":"2026-07-05T10:45:23.201356Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:45:23.201356Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2504.04393","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":"2026-07-05T10:45:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yTY1g5kRGF7j3MRq9uXl/9O7z1VYSpPgsd73ye62gcsYiEP77H5B41DmizTvVISM2N6j9VfsJ4IyFtkzLTwuBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T01:26:26.813848Z"},"content_sha256":"ad8d3a726a92634c39bdb0dbbda558e20ca280f43c9e3eebae692ac73c077aca","schema_version":"1.0","event_id":"sha256:ad8d3a726a92634c39bdb0dbbda558e20ca280f43c9e3eebae692ac73c077aca"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:4D2TKWMLY27IKOIOWXDDXDKHDI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Supernovae at Distances < 40 Mpc: I.Catalogues and fractions of Supernovae in a Complete Sample","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"Craig Pellegrino, Curtis McCully, Daichi Hiramatsu, D. Andrew Howell, Danfeng Xiang, Estefania Padilla Gonzalez, Fangzhou Guo, Gaici Li, Giacomo Terreran, Han Lin, Hanna Sai, Iair Arcavi, Jialian Liu, Joseph Farah, Jujia Zhang, Jun Mo, Megan Newsome, Shengyu Yan, Tianmeng Zhang, Xiaofeng Wang, Xiaoran Ma, Xinhan Zhang, Zhihao Chen","submitted_at":"2025-04-06T07:26:47Z","abstract_excerpt":"Context.This is the first paper of a series aiming to determine the fractions and birth rates of various types of supernovae (SNe) in the local Universe. Aims. In this paper, we aim to construct a complete sample of SNe in the nearby universe and provide more precise measurement of subtype fractions. Methods.We carefully selected our SN sample at a distance of < 40 Mpc mainly from wide-field surveys conducted over the years from 2016 to 2023. Results.The sample contains a total of 211 SNe, including 109 SNe II, 69 SNe Ia, and 33 SNe Ibc. With the aid of sufficient spectra, we can obtain relati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.04393","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/2504.04393/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":"2026-07-05T10:45:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cWBYN5/loyVKEplDIUu5gCmDqcM6BZI/aJWbJPba4uetGis/xUD9w/Haw6nTzjOsxDXVTtYae66SySHaya15Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T01:26:26.814511Z"},"content_sha256":"2e8c7adf3fa59a589b3ed3d1bf7ee15726fd57431b7fd41030930a384a415dce","schema_version":"1.0","event_id":"sha256:2e8c7adf3fa59a589b3ed3d1bf7ee15726fd57431b7fd41030930a384a415dce"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4D2TKWMLY27IKOIOWXDDXDKHDI/bundle.json","state_url":"https://pith.science/pith/4D2TKWMLY27IKOIOWXDDXDKHDI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4D2TKWMLY27IKOIOWXDDXDKHDI/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":"2026-08-07T01:26:26Z","links":{"resolver":"https://pith.science/pith/4D2TKWMLY27IKOIOWXDDXDKHDI","bundle":"https://pith.science/pith/4D2TKWMLY27IKOIOWXDDXDKHDI/bundle.json","state":"https://pith.science/pith/4D2TKWMLY27IKOIOWXDDXDKHDI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4D2TKWMLY27IKOIOWXDDXDKHDI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:4D2TKWMLY27IKOIOWXDDXDKHDI","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":"ad055dc63f9316f9a582da8787c6b8aa8650a17c76dfbc945f8c68859dbe46af","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-04-06T07:26:47Z","title_canon_sha256":"1d7eba32c0d6f77caa8cd5aef1c82221e63b9c202fe4327a1ed217e3fd5b16c7"},"schema_version":"1.0","source":{"id":"2504.04393","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.04393","created_at":"2026-07-05T10:45:23Z"},{"alias_kind":"arxiv_version","alias_value":"2504.04393v1","created_at":"2026-07-05T10:45:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.04393","created_at":"2026-07-05T10:45:23Z"},{"alias_kind":"pith_short_12","alias_value":"4D2TKWMLY27I","created_at":"2026-07-05T10:45:23Z"},{"alias_kind":"pith_short_16","alias_value":"4D2TKWMLY27IKOIO","created_at":"2026-07-05T10:45:23Z"},{"alias_kind":"pith_short_8","alias_value":"4D2TKWML","created_at":"2026-07-05T10:45:23Z"}],"graph_snapshots":[{"event_id":"sha256:2e8c7adf3fa59a589b3ed3d1bf7ee15726fd57431b7fd41030930a384a415dce","target":"graph","created_at":"2026-07-05T10:45:23Z","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/2504.04393/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Context.This is the first paper of a series aiming to determine the fractions and birth rates of various types of supernovae (SNe) in the local Universe. Aims. In this paper, we aim to construct a complete sample of SNe in the nearby universe and provide more precise measurement of subtype fractions. Methods.We carefully selected our SN sample at a distance of < 40 Mpc mainly from wide-field surveys conducted over the years from 2016 to 2023. Results.The sample contains a total of 211 SNe, including 109 SNe II, 69 SNe Ia, and 33 SNe Ibc. With the aid of sufficient spectra, we can obtain relati","authors_text":"Craig Pellegrino, Curtis McCully, Daichi Hiramatsu, D. Andrew Howell, Danfeng Xiang, Estefania Padilla Gonzalez, Fangzhou Guo, Gaici Li, Giacomo Terreran, Han Lin, Hanna Sai, Iair Arcavi, Jialian Liu, Joseph Farah, Jujia Zhang, Jun Mo, Megan Newsome, Shengyu Yan, Tianmeng Zhang, Xiaofeng Wang, Xiaoran Ma, Xinhan Zhang, Zhihao Chen","cross_cats":["astro-ph.CO"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-04-06T07:26:47Z","title":"Supernovae at Distances < 40 Mpc: I.Catalogues and fractions of Supernovae in a Complete Sample"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.04393","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:ad8d3a726a92634c39bdb0dbbda558e20ca280f43c9e3eebae692ac73c077aca","target":"record","created_at":"2026-07-05T10:45:23Z","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":"ad055dc63f9316f9a582da8787c6b8aa8650a17c76dfbc945f8c68859dbe46af","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-04-06T07:26:47Z","title_canon_sha256":"1d7eba32c0d6f77caa8cd5aef1c82221e63b9c202fe4327a1ed217e3fd5b16c7"},"schema_version":"1.0","source":{"id":"2504.04393","kind":"arxiv","version":1}},"canonical_sha256":"e0f535598bc6be85390eb5c63b8d471a1b97f2f3b9b0161e973a116b17585add","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e0f535598bc6be85390eb5c63b8d471a1b97f2f3b9b0161e973a116b17585add","first_computed_at":"2026-07-05T10:45:23.201356Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:45:23.201356Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uWa7kBr3YlBDvizH34BmVUN0I9lwOVUSTV6YvP3V2ozyR2nLPjSjLhCsqtPH5osZU2aCKaZWfWoJKN0RsxtSDw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:45:23.201779Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.04393","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ad8d3a726a92634c39bdb0dbbda558e20ca280f43c9e3eebae692ac73c077aca","sha256:2e8c7adf3fa59a589b3ed3d1bf7ee15726fd57431b7fd41030930a384a415dce"],"state_sha256":"380e422a6f7b53cec60bdf156cde53dbf6bb1864f3ca02808a6a10a30eb3df43"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5NsdHy3RNPh717QcmwMxbUi0igOe/e4K/XLb9JsqE80EJkPbF2DfYPE/7rIBhA+r3FyNvvNcmJtOJMWKLGn+BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T01:26:26.819585Z","bundle_sha256":"e0ff05bdd53f21e9fac7f52411c03cf7ebb779b607c2571ccd365cd8bba09c90"}}