{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:JYXEITKRRHNPKGS3HRG45VEICJ","short_pith_number":"pith:JYXEITKR","canonical_record":{"source":{"id":"astro-ph/0408130","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-08-06T15:56:56Z","cross_cats_sorted":[],"title_canon_sha256":"c53058975d808893200e285ca457ad2198e5307b786522505873d54aecaa5664","abstract_canon_sha256":"3166ae152b307c9768c32b9e26083844ecdebf22e192c652fa95477bffa3c41b"},"schema_version":"1.0"},"canonical_sha256":"4e2e444d5189daf51a5b3c4dced488126a4cde87fe7f4c1adaf792aa46d3106c","source":{"kind":"arxiv","id":"astro-ph/0408130","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0408130","created_at":"2026-07-04T16:44:27Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0408130v1","created_at":"2026-07-04T16:44:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0408130","created_at":"2026-07-04T16:44:27Z"},{"alias_kind":"pith_short_12","alias_value":"JYXEITKRRHNP","created_at":"2026-07-04T16:44:27Z"},{"alias_kind":"pith_short_16","alias_value":"JYXEITKRRHNPKGS3","created_at":"2026-07-04T16:44:27Z"},{"alias_kind":"pith_short_8","alias_value":"JYXEITKR","created_at":"2026-07-04T16:44:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:JYXEITKRRHNPKGS3HRG45VEICJ","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0408130","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-08-06T15:56:56Z","cross_cats_sorted":[],"title_canon_sha256":"c53058975d808893200e285ca457ad2198e5307b786522505873d54aecaa5664","abstract_canon_sha256":"3166ae152b307c9768c32b9e26083844ecdebf22e192c652fa95477bffa3c41b"},"schema_version":"1.0"},"canonical_sha256":"4e2e444d5189daf51a5b3c4dced488126a4cde87fe7f4c1adaf792aa46d3106c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:44:27.292036Z","signature_b64":"X4xnioBHc7BQSrVE6IIqBufinmcCDbIKbabNK/sfi26qM30kPA6PQbDBxaJ+dGev0U33tbQxTZF0Kzn1/wwkDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4e2e444d5189daf51a5b3c4dced488126a4cde87fe7f4c1adaf792aa46d3106c","last_reissued_at":"2026-07-04T16:44:27.291628Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:44:27.291628Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0408130","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":"2026-07-04T16:44:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k/ZHiyPb32wlJ2XPprWF3p9ENMz5ZiBRzx7pYYntaDdbrznqLi2K21wJBdl0qnfhzucxnHYKrDLrBtLFunmpAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T00:06:33.413762Z"},"content_sha256":"b4560b8dcdbd004f5fd1bacb0938e4e0e182af8e6557c33f501371e2610301e8","schema_version":"1.0","event_id":"sha256:b4560b8dcdbd004f5fd1bacb0938e4e0e182af8e6557c33f501371e2610301e8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:JYXEITKRRHNPKGS3HRG45VEICJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reading the Spectra of the Most Peculiar Type Ia Supernova 2002cx","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Alexei V. Filippenko, David Branch, D. Kasen, E. Baron, R. C. Thomas, Weidong Li","submitted_at":"2004-08-06T15:56:56Z","abstract_excerpt":"In spite of the apparent lack of Si II and S II features in its spectra, SN 2002cx was classified as a peculiar Type Ia supernova (SN Ia) on the basis of its overall photometric and spectroscopic behavior. Spectra obtained near maximum light contained Fe III features, as in SN 1991T-like events, but the blueshifts of the Fe III absorptions were exceptionally low. The luminosity also was low. We use the supernova synthetic--spectrum code SYNOW to study line identifications in SN 2002cx. We find that the maximum-light spectra appear to contain weak features of Si II, S II, Si III, and Ca II, whi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0408130","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/0408130/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":"2026-07-04T16:44:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MZFMWEH2L46aBSf8hb25ypONQDaJJRhStwo8iXCvtMxZZGaSBffay4VB/drzAgSIQbtWGahCYDfwjlbTjuShBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T00:06:33.414264Z"},"content_sha256":"38e1e6c3eb6964979daca3476ad5e41acfde60d67910db4c01e47be54239de26","schema_version":"1.0","event_id":"sha256:38e1e6c3eb6964979daca3476ad5e41acfde60d67910db4c01e47be54239de26"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JYXEITKRRHNPKGS3HRG45VEICJ/bundle.json","state_url":"https://pith.science/pith/JYXEITKRRHNPKGS3HRG45VEICJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JYXEITKRRHNPKGS3HRG45VEICJ/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":"2026-08-07T00:06:33Z","links":{"resolver":"https://pith.science/pith/JYXEITKRRHNPKGS3HRG45VEICJ","bundle":"https://pith.science/pith/JYXEITKRRHNPKGS3HRG45VEICJ/bundle.json","state":"https://pith.science/pith/JYXEITKRRHNPKGS3HRG45VEICJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JYXEITKRRHNPKGS3HRG45VEICJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:JYXEITKRRHNPKGS3HRG45VEICJ","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":"3166ae152b307c9768c32b9e26083844ecdebf22e192c652fa95477bffa3c41b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-08-06T15:56:56Z","title_canon_sha256":"c53058975d808893200e285ca457ad2198e5307b786522505873d54aecaa5664"},"schema_version":"1.0","source":{"id":"astro-ph/0408130","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0408130","created_at":"2026-07-04T16:44:27Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0408130v1","created_at":"2026-07-04T16:44:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0408130","created_at":"2026-07-04T16:44:27Z"},{"alias_kind":"pith_short_12","alias_value":"JYXEITKRRHNP","created_at":"2026-07-04T16:44:27Z"},{"alias_kind":"pith_short_16","alias_value":"JYXEITKRRHNPKGS3","created_at":"2026-07-04T16:44:27Z"},{"alias_kind":"pith_short_8","alias_value":"JYXEITKR","created_at":"2026-07-04T16:44:27Z"}],"graph_snapshots":[{"event_id":"sha256:38e1e6c3eb6964979daca3476ad5e41acfde60d67910db4c01e47be54239de26","target":"graph","created_at":"2026-07-04T16:44:27Z","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/0408130/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In spite of the apparent lack of Si II and S II features in its spectra, SN 2002cx was classified as a peculiar Type Ia supernova (SN Ia) on the basis of its overall photometric and spectroscopic behavior. Spectra obtained near maximum light contained Fe III features, as in SN 1991T-like events, but the blueshifts of the Fe III absorptions were exceptionally low. The luminosity also was low. We use the supernova synthetic--spectrum code SYNOW to study line identifications in SN 2002cx. We find that the maximum-light spectra appear to contain weak features of Si II, S II, Si III, and Ca II, whi","authors_text":"Alexei V. Filippenko, David Branch, D. Kasen, E. Baron, R. C. Thomas, Weidong Li","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2004-08-06T15:56:56Z","title":"Reading the Spectra of the Most Peculiar Type Ia Supernova 2002cx"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0408130","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:b4560b8dcdbd004f5fd1bacb0938e4e0e182af8e6557c33f501371e2610301e8","target":"record","created_at":"2026-07-04T16:44:27Z","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":"3166ae152b307c9768c32b9e26083844ecdebf22e192c652fa95477bffa3c41b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-08-06T15:56:56Z","title_canon_sha256":"c53058975d808893200e285ca457ad2198e5307b786522505873d54aecaa5664"},"schema_version":"1.0","source":{"id":"astro-ph/0408130","kind":"arxiv","version":1}},"canonical_sha256":"4e2e444d5189daf51a5b3c4dced488126a4cde87fe7f4c1adaf792aa46d3106c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4e2e444d5189daf51a5b3c4dced488126a4cde87fe7f4c1adaf792aa46d3106c","first_computed_at":"2026-07-04T16:44:27.291628Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:44:27.291628Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"X4xnioBHc7BQSrVE6IIqBufinmcCDbIKbabNK/sfi26qM30kPA6PQbDBxaJ+dGev0U33tbQxTZF0Kzn1/wwkDA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:44:27.292036Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0408130","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b4560b8dcdbd004f5fd1bacb0938e4e0e182af8e6557c33f501371e2610301e8","sha256:38e1e6c3eb6964979daca3476ad5e41acfde60d67910db4c01e47be54239de26"],"state_sha256":"48e03b02a0eaba8e07f18581e96d511912ebbb4017b8ee610985cbcbeebfc05e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rIzZl3FmsGMbN+S9IQl2gcIz/qeJyXyvH+bqNyMmqNWBV5nnLCn8FoLJhCzV92UPWUk9Bv7LUbwpwgLmebVSAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T00:06:33.423055Z","bundle_sha256":"62b5afdc25c936b4685282102da737f2ab0b988121ab4777294019b2af83385e"}}