{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:FG6QODUXCVU6QRZ3ONAG6O4EXE","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":"832c2ca46cf54e70c89d4117ba896eedad38871c4b4334efa40887a64e5d9776","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-07-14T20:00:01Z","title_canon_sha256":"43c83dca823c3bb9d3d583a3ebe27826a1e13536cb9dc454c11b04d57b7af8d6"},"schema_version":"1.0","source":{"id":"1007.2409","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1007.2409","created_at":"2026-05-18T02:06:21Z"},{"alias_kind":"arxiv_version","alias_value":"1007.2409v1","created_at":"2026-05-18T02:06:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1007.2409","created_at":"2026-05-18T02:06:21Z"},{"alias_kind":"pith_short_12","alias_value":"FG6QODUXCVU6","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"FG6QODUXCVU6QRZ3","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"FG6QODUX","created_at":"2026-05-18T12:26:07Z"}],"graph_snapshots":[{"event_id":"sha256:6910c79e5b73debf9465b8f4aa47807597d4e75e488e386ec9c26d9f088ff0f9","target":"graph","created_at":"2026-05-18T02:06:21Z","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":"We use stellar dynamics, strong lensing, stellar population synthesis models, and weak lensing shear measurements to constrain the dark matter (DM) profile and stellar mass in a sample of 53 massive early-type galaxies. We explore three DM halo models (unperturbed Navarro Frenk & White [NFW] halos and the adiabatic contraction models of Blumenthal and Gnedin) and impose a model for the relationship between the stellar and virial mass (i.e., a relationship for the star-formation efficiency as a function of halo mass). We show that, given our model assumptions, the data clearly prefer a Salpeter","authors_text":"(2) IAP, (3) Utah, (4) Kapteyn, (5) SLAC), A. S. Bolton (3), L. V. E. Koopmans (4), M. W. Auger (1), P. J. Marshall (5) ((1) UCSB, R. Gavazzi (2), T. Treu (1)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-07-14T20:00:01Z","title":"Dark Matter Contraction and the Stellar Content of Massive Early-type Galaxies: Disfavoring \"Light\" Initial Mass Functions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1007.2409","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":"sha256:55f1419a778fb839267f4b6fe8964894a9596b52bedb3f4263f3e532ea8712b0","target":"record","created_at":"2026-05-18T02:06:21Z","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":"832c2ca46cf54e70c89d4117ba896eedad38871c4b4334efa40887a64e5d9776","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-07-14T20:00:01Z","title_canon_sha256":"43c83dca823c3bb9d3d583a3ebe27826a1e13536cb9dc454c11b04d57b7af8d6"},"schema_version":"1.0","source":{"id":"1007.2409","kind":"arxiv","version":1}},"canonical_sha256":"29bd070e971569e8473b73406f3b84b92f846e45ea9b90453021ab0479aaf286","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"29bd070e971569e8473b73406f3b84b92f846e45ea9b90453021ab0479aaf286","first_computed_at":"2026-05-18T02:06:21.947608Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:06:21.947608Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ODPFi6fhtWT6gHHu9N9gyaugJuQ9w5g1l66n7sJru7wiyKtKqFMrEEAV2Eg0EOwHicTrOoB6qAgWC89pkguxCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:06:21.948231Z","signed_message":"canonical_sha256_bytes"},"source_id":"1007.2409","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:55f1419a778fb839267f4b6fe8964894a9596b52bedb3f4263f3e532ea8712b0","sha256:6910c79e5b73debf9465b8f4aa47807597d4e75e488e386ec9c26d9f088ff0f9"],"state_sha256":"43ea71f625dbf52b9ef34f0edc2dfac2b4146e233751c3f753d571f0e8636859"}