{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:74HJBKWE6GNC2BGT7HEU3WI2FY","short_pith_number":"pith:74HJBKWE","canonical_record":{"source":{"id":"0910.3689","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-10-19T20:37:21Z","cross_cats_sorted":[],"title_canon_sha256":"995646695fe8b6279e0ce2e8d5e49a0435c0cbac8b6a51efde736276557fb258","abstract_canon_sha256":"629b820ef551c95e52d86e3d9ab446439f2a6f82f201e4601d477776cee3d933"},"schema_version":"1.0"},"canonical_sha256":"ff0e90aac4f19a2d04d3f9c94dd91a2e3608d787dd00ffc3c8003bfa7a08f358","source":{"kind":"arxiv","id":"0910.3689","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.3689","created_at":"2026-05-18T02:11:14Z"},{"alias_kind":"arxiv_version","alias_value":"0910.3689v1","created_at":"2026-05-18T02:11:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.3689","created_at":"2026-05-18T02:11:14Z"},{"alias_kind":"pith_short_12","alias_value":"74HJBKWE6GNC","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"74HJBKWE6GNC2BGT","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"74HJBKWE","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:74HJBKWE6GNC2BGT7HEU3WI2FY","target":"record","payload":{"canonical_record":{"source":{"id":"0910.3689","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-10-19T20:37:21Z","cross_cats_sorted":[],"title_canon_sha256":"995646695fe8b6279e0ce2e8d5e49a0435c0cbac8b6a51efde736276557fb258","abstract_canon_sha256":"629b820ef551c95e52d86e3d9ab446439f2a6f82f201e4601d477776cee3d933"},"schema_version":"1.0"},"canonical_sha256":"ff0e90aac4f19a2d04d3f9c94dd91a2e3608d787dd00ffc3c8003bfa7a08f358","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:11:14.084177Z","signature_b64":"zc3pqVDiU0MN0YMHB5BI+1kOOvclzv8TU7OUtqmw7Ty56jnM1KqWGGt/utBOfby/rsyzjfhGKm0JqVw4tyXuAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ff0e90aac4f19a2d04d3f9c94dd91a2e3608d787dd00ffc3c8003bfa7a08f358","last_reissued_at":"2026-05-18T02:11:14.083311Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:11:14.083311Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0910.3689","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":"2026-05-18T02:11:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ixr6xIkDgFz8vV82xbiRTtSZoVmapk9NjLQ6Wbf74hapyx0Ns8JD0ORzwWpYl7i6g4ngAer47TiHj3IH7L7xCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T02:44:31.450451Z"},"content_sha256":"c23f59c362768af714ea8c7bf36c8052b530d0b7dd2d50ee68a67a329ef230c0","schema_version":"1.0","event_id":"sha256:c23f59c362768af714ea8c7bf36c8052b530d0b7dd2d50ee68a67a329ef230c0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:74HJBKWE6GNC2BGT7HEU3WI2FY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fe-peak element abundances in disk and halo stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Maria Bergemann, Thomas Gehren","submitted_at":"2009-10-19T20:37:21Z","abstract_excerpt":"At present none of Galactic chemical evolution (GCE) models provides a self-consistent description of observed trends for all iron-peak elements with metallicity simultaneously. The question is whether the discrepancy is due to deficiencies of GCE models, such as stellar yields, or due to erroneous spectroscopically-determined abundances of these elements in metal-poor stars. The present work aims at a critical reevaluation of the abundance trends for several odd and even-Z Fe-peak elements, which are important for understanding explosive nucleosynthesis in supernovae."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.3689","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":"2026-05-18T02:11:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gB26U8GebYRQvNWnU60F+YQk9bpZsYGX15BbVUGBjwwJLue5qDGWHgCAKl4fWaEJmi3bF7pRZZ/vKJeovHbKAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T02:44:31.450807Z"},"content_sha256":"842f8ea1b4d98ed218c2c7171ea725d77a072e9c384af76c9ac2360b60754d76","schema_version":"1.0","event_id":"sha256:842f8ea1b4d98ed218c2c7171ea725d77a072e9c384af76c9ac2360b60754d76"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/74HJBKWE6GNC2BGT7HEU3WI2FY/bundle.json","state_url":"https://pith.science/pith/74HJBKWE6GNC2BGT7HEU3WI2FY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/74HJBKWE6GNC2BGT7HEU3WI2FY/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":"2026-06-01T02:44:31Z","links":{"resolver":"https://pith.science/pith/74HJBKWE6GNC2BGT7HEU3WI2FY","bundle":"https://pith.science/pith/74HJBKWE6GNC2BGT7HEU3WI2FY/bundle.json","state":"https://pith.science/pith/74HJBKWE6GNC2BGT7HEU3WI2FY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/74HJBKWE6GNC2BGT7HEU3WI2FY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:74HJBKWE6GNC2BGT7HEU3WI2FY","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":"629b820ef551c95e52d86e3d9ab446439f2a6f82f201e4601d477776cee3d933","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-10-19T20:37:21Z","title_canon_sha256":"995646695fe8b6279e0ce2e8d5e49a0435c0cbac8b6a51efde736276557fb258"},"schema_version":"1.0","source":{"id":"0910.3689","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.3689","created_at":"2026-05-18T02:11:14Z"},{"alias_kind":"arxiv_version","alias_value":"0910.3689v1","created_at":"2026-05-18T02:11:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.3689","created_at":"2026-05-18T02:11:14Z"},{"alias_kind":"pith_short_12","alias_value":"74HJBKWE6GNC","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"74HJBKWE6GNC2BGT","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"74HJBKWE","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:842f8ea1b4d98ed218c2c7171ea725d77a072e9c384af76c9ac2360b60754d76","target":"graph","created_at":"2026-05-18T02:11:14Z","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":"At present none of Galactic chemical evolution (GCE) models provides a self-consistent description of observed trends for all iron-peak elements with metallicity simultaneously. The question is whether the discrepancy is due to deficiencies of GCE models, such as stellar yields, or due to erroneous spectroscopically-determined abundances of these elements in metal-poor stars. The present work aims at a critical reevaluation of the abundance trends for several odd and even-Z Fe-peak elements, which are important for understanding explosive nucleosynthesis in supernovae.","authors_text":"Maria Bergemann, Thomas Gehren","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-10-19T20:37:21Z","title":"Fe-peak element abundances in disk and halo stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.3689","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:c23f59c362768af714ea8c7bf36c8052b530d0b7dd2d50ee68a67a329ef230c0","target":"record","created_at":"2026-05-18T02:11:14Z","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":"629b820ef551c95e52d86e3d9ab446439f2a6f82f201e4601d477776cee3d933","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-10-19T20:37:21Z","title_canon_sha256":"995646695fe8b6279e0ce2e8d5e49a0435c0cbac8b6a51efde736276557fb258"},"schema_version":"1.0","source":{"id":"0910.3689","kind":"arxiv","version":1}},"canonical_sha256":"ff0e90aac4f19a2d04d3f9c94dd91a2e3608d787dd00ffc3c8003bfa7a08f358","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ff0e90aac4f19a2d04d3f9c94dd91a2e3608d787dd00ffc3c8003bfa7a08f358","first_computed_at":"2026-05-18T02:11:14.083311Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:11:14.083311Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zc3pqVDiU0MN0YMHB5BI+1kOOvclzv8TU7OUtqmw7Ty56jnM1KqWGGt/utBOfby/rsyzjfhGKm0JqVw4tyXuAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:11:14.084177Z","signed_message":"canonical_sha256_bytes"},"source_id":"0910.3689","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c23f59c362768af714ea8c7bf36c8052b530d0b7dd2d50ee68a67a329ef230c0","sha256:842f8ea1b4d98ed218c2c7171ea725d77a072e9c384af76c9ac2360b60754d76"],"state_sha256":"ec6c2e0fe63046daa5802c878c0e62441e11d32c55348f580495ed424a22dc79"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f1AYWYqRmwbVKhngbJjKHu/yConBwy9Zy5Rh31H9JLPQkDqh9q0ZKG0uIBpdDqISQyAzf/oNaanWENuZB5PRAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T02:44:31.453088Z","bundle_sha256":"245ce35ba6e3f5fd0c39434cb8d89354ed852f3ea217c590c78e2041148534ff"}}