{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:KASTLV5U5JOMPYY3RTJOBN7RY4","short_pith_number":"pith:KASTLV5U","canonical_record":{"source":{"id":"1803.00034","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-28T19:14:09Z","cross_cats_sorted":[],"title_canon_sha256":"bf3e764cccacd557e12cc47f7e6e19a9eb3ee9c6b9f2d80d8586146b64f87b5e","abstract_canon_sha256":"9046a4e84b1e770143d3c6af59de7d3db69fdf8263db8ada18f3d51f15813bc6"},"schema_version":"1.0"},"canonical_sha256":"502535d7b4ea5cc7e31b8cd2e0b7f1c721db5b737f4f354264fb10ec29f30197","source":{"kind":"arxiv","id":"1803.00034","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.00034","created_at":"2026-05-18T00:11:37Z"},{"alias_kind":"arxiv_version","alias_value":"1803.00034v2","created_at":"2026-05-18T00:11:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.00034","created_at":"2026-05-18T00:11:37Z"},{"alias_kind":"pith_short_12","alias_value":"KASTLV5U5JOM","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"KASTLV5U5JOMPYY3","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"KASTLV5U","created_at":"2026-05-18T12:32:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:KASTLV5U5JOMPYY3RTJOBN7RY4","target":"record","payload":{"canonical_record":{"source":{"id":"1803.00034","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-28T19:14:09Z","cross_cats_sorted":[],"title_canon_sha256":"bf3e764cccacd557e12cc47f7e6e19a9eb3ee9c6b9f2d80d8586146b64f87b5e","abstract_canon_sha256":"9046a4e84b1e770143d3c6af59de7d3db69fdf8263db8ada18f3d51f15813bc6"},"schema_version":"1.0"},"canonical_sha256":"502535d7b4ea5cc7e31b8cd2e0b7f1c721db5b737f4f354264fb10ec29f30197","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:11:37.755302Z","signature_b64":"ZD8hbGh8dDEB+Lr3lxVMOxZUUM6z5xZyFkyocVCXpGaH7f5sbmjaH6glyIDyayztGsHkVW+NMb+HF6x0OXrpAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"502535d7b4ea5cc7e31b8cd2e0b7f1c721db5b737f4f354264fb10ec29f30197","last_reissued_at":"2026-05-18T00:11:37.754632Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:11:37.754632Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.00034","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:11:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lN2AQ3Tm9oEgr9at3tftHaWxPBXd/xMYE1+x5oTWxGBKwcOOf3G06a6QpeBuzK1k8d+UpbKVCR8JiAWrkyjrCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T01:18:28.815200Z"},"content_sha256":"013b9b5eb03cd52c98f9282cf6ce40bd57d078c6869e47bd7fbf7b3cc2944cc5","schema_version":"1.0","event_id":"sha256:013b9b5eb03cd52c98f9282cf6ce40bd57d078c6869e47bd7fbf7b3cc2944cc5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:KASTLV5U5JOMPYY3RTJOBN7RY4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Field spheroid-dominated galaxies in a {\\Lambda}-CDM Universe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"H. J. Ibarra-Medel, I. Lacerna, L. A. Bignone, M. S. Rosito, P.B Tissera, S. E. Pedrosa, S. Varela, V. Avila-Reese","submitted_at":"2018-02-28T19:14:09Z","abstract_excerpt":"Understanding the formation and evolution of early-type, spheroid-dominated galaxies is an open question within the context of the hierarchical clustering scenario, particularly, in low-density environments. Our goal is to study the main structural, dynamical, and stellar population properties and assembly histories of field spheroid-dominated galaxies formed in a LCDM scenario to assess to what extend they are consistent with observations. We selected spheroid-dominated systems from a LCDM simulation that includes star formation, chemical evolution and Supernova feedback. A sample of 18 field"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.00034","kind":"arxiv","version":2},"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":"2026-05-18T00:11:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H1bMUrenewi0XNgyscEV3Xcgx2LzjTkZvG3hLGg07iAQ1CIncfnExs+8PhRp6JzbvLy9aQUOdnOXQuN1TqJqBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T01:18:28.815871Z"},"content_sha256":"819bbd14bf565509b52308009b02938809727001c11c7357492db5ebc630d0a5","schema_version":"1.0","event_id":"sha256:819bbd14bf565509b52308009b02938809727001c11c7357492db5ebc630d0a5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KASTLV5U5JOMPYY3RTJOBN7RY4/bundle.json","state_url":"https://pith.science/pith/KASTLV5U5JOMPYY3RTJOBN7RY4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KASTLV5U5JOMPYY3RTJOBN7RY4/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":"2026-05-31T01:18:28Z","links":{"resolver":"https://pith.science/pith/KASTLV5U5JOMPYY3RTJOBN7RY4","bundle":"https://pith.science/pith/KASTLV5U5JOMPYY3RTJOBN7RY4/bundle.json","state":"https://pith.science/pith/KASTLV5U5JOMPYY3RTJOBN7RY4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KASTLV5U5JOMPYY3RTJOBN7RY4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:KASTLV5U5JOMPYY3RTJOBN7RY4","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":"9046a4e84b1e770143d3c6af59de7d3db69fdf8263db8ada18f3d51f15813bc6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-28T19:14:09Z","title_canon_sha256":"bf3e764cccacd557e12cc47f7e6e19a9eb3ee9c6b9f2d80d8586146b64f87b5e"},"schema_version":"1.0","source":{"id":"1803.00034","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.00034","created_at":"2026-05-18T00:11:37Z"},{"alias_kind":"arxiv_version","alias_value":"1803.00034v2","created_at":"2026-05-18T00:11:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.00034","created_at":"2026-05-18T00:11:37Z"},{"alias_kind":"pith_short_12","alias_value":"KASTLV5U5JOM","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"KASTLV5U5JOMPYY3","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"KASTLV5U","created_at":"2026-05-18T12:32:33Z"}],"graph_snapshots":[{"event_id":"sha256:819bbd14bf565509b52308009b02938809727001c11c7357492db5ebc630d0a5","target":"graph","created_at":"2026-05-18T00:11:37Z","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":"Understanding the formation and evolution of early-type, spheroid-dominated galaxies is an open question within the context of the hierarchical clustering scenario, particularly, in low-density environments. Our goal is to study the main structural, dynamical, and stellar population properties and assembly histories of field spheroid-dominated galaxies formed in a LCDM scenario to assess to what extend they are consistent with observations. We selected spheroid-dominated systems from a LCDM simulation that includes star formation, chemical evolution and Supernova feedback. A sample of 18 field","authors_text":"H. J. Ibarra-Medel, I. Lacerna, L. A. Bignone, M. S. Rosito, P.B Tissera, S. E. Pedrosa, S. Varela, V. Avila-Reese","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-28T19:14:09Z","title":"Field spheroid-dominated galaxies in a {\\Lambda}-CDM Universe"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.00034","kind":"arxiv","version":2},"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":"sha256:013b9b5eb03cd52c98f9282cf6ce40bd57d078c6869e47bd7fbf7b3cc2944cc5","target":"record","created_at":"2026-05-18T00:11:37Z","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":"9046a4e84b1e770143d3c6af59de7d3db69fdf8263db8ada18f3d51f15813bc6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-28T19:14:09Z","title_canon_sha256":"bf3e764cccacd557e12cc47f7e6e19a9eb3ee9c6b9f2d80d8586146b64f87b5e"},"schema_version":"1.0","source":{"id":"1803.00034","kind":"arxiv","version":2}},"canonical_sha256":"502535d7b4ea5cc7e31b8cd2e0b7f1c721db5b737f4f354264fb10ec29f30197","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"502535d7b4ea5cc7e31b8cd2e0b7f1c721db5b737f4f354264fb10ec29f30197","first_computed_at":"2026-05-18T00:11:37.754632Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:11:37.754632Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZD8hbGh8dDEB+Lr3lxVMOxZUUM6z5xZyFkyocVCXpGaH7f5sbmjaH6glyIDyayztGsHkVW+NMb+HF6x0OXrpAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:11:37.755302Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.00034","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:013b9b5eb03cd52c98f9282cf6ce40bd57d078c6869e47bd7fbf7b3cc2944cc5","sha256:819bbd14bf565509b52308009b02938809727001c11c7357492db5ebc630d0a5"],"state_sha256":"a6632f9b79598fa726ac04c83711547aa94a7988a6be36e3e526b358b42aa8ed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GOdwBwkZDmTk74JlR2O8GbhsBxCGjmGAKxacunfD4gb1yGrciu2ySQyNFRyq62TrW/CCI7vmsD78SH83Z748AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T01:18:28.819104Z","bundle_sha256":"94d7b6fdb7801e93e319f5c64ccbd60ac984808c9d7dd130be59a10dd1d482d7"}}