{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:F22SHHWAEJTGLDLZZG7EGIOWM5","short_pith_number":"pith:F22SHHWA","canonical_record":{"source":{"id":"1111.4215","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-17T21:01:45Z","cross_cats_sorted":[],"title_canon_sha256":"d3215d222a6dd0f09e253c3028bd720f53942c22e927b653745b2a67b505acc5","abstract_canon_sha256":"f4f11c5a80025d7cfb158563100390984ac8ba9e8e6ebe16b736cee21357ebd3"},"schema_version":"1.0"},"canonical_sha256":"2eb5239ec02266658d79c9be4321d6676f66d1939d1b42039be0d666ea240fdc","source":{"kind":"arxiv","id":"1111.4215","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.4215","created_at":"2026-05-18T01:59:31Z"},{"alias_kind":"arxiv_version","alias_value":"1111.4215v3","created_at":"2026-05-18T01:59:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.4215","created_at":"2026-05-18T01:59:31Z"},{"alias_kind":"pith_short_12","alias_value":"F22SHHWAEJTG","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"F22SHHWAEJTGLDLZ","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"F22SHHWA","created_at":"2026-05-18T12:26:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:F22SHHWAEJTGLDLZZG7EGIOWM5","target":"record","payload":{"canonical_record":{"source":{"id":"1111.4215","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-17T21:01:45Z","cross_cats_sorted":[],"title_canon_sha256":"d3215d222a6dd0f09e253c3028bd720f53942c22e927b653745b2a67b505acc5","abstract_canon_sha256":"f4f11c5a80025d7cfb158563100390984ac8ba9e8e6ebe16b736cee21357ebd3"},"schema_version":"1.0"},"canonical_sha256":"2eb5239ec02266658d79c9be4321d6676f66d1939d1b42039be0d666ea240fdc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:59:31.445393Z","signature_b64":"M3lrJjZopjdNq0A5MzrhLE6iCb7t9S+kRcl5mfjMi611LwefzzfBlj+0cIciR+5sdqpqBVUjA5xJ2KSgcGBEAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2eb5239ec02266658d79c9be4321d6676f66d1939d1b42039be0d666ea240fdc","last_reissued_at":"2026-05-18T01:59:31.444819Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:59:31.444819Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1111.4215","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:59:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zD4fqPHL1cqkW2xhrbops96gnqHFOJ54ssO+8u/dHvoWbxT6SHlUrZ9wspjSwg2H6W/k1H+Kh5Cd2Fd3t8vlAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T08:00:10.308980Z"},"content_sha256":"2b782c6f21e76ecbc393c76299351ce5ed316986e60472bfd2e3b409041c7153","schema_version":"1.0","event_id":"sha256:2b782c6f21e76ecbc393c76299351ce5ed316986e60472bfd2e3b409041c7153"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:F22SHHWAEJTGLDLZZG7EGIOWM5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Evidence for dark matter contraction and a Salpeter IMF in a massive early-type galaxy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Adam S. Bolton, Alessandro Sonnenfeld, Leon V. E. Koopmans, Matthew W. Auger, Philip J. Marshall, Raphael Gavazzi, Sherry H. Suyu, Tommaso Treu","submitted_at":"2011-11-17T21:01:45Z","abstract_excerpt":"Stars and dark matter account for most of the mass of early-type galaxies, but uncertainties in the stellar population and the dark matter profile make it challenging to distinguish between the two components. Nevertheless, precise observations of stellar and dark matter are extremely valuable for testing the many models of structure formation and evolution. We present a measurement of the stellar mass and inner slope of the dark matter halo of a massive early-type galaxy at $z=0.222$. The galaxy is the foreground deflector of the double Einstein ring gravitational lens system SDSSJ0946+1006, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.4215","kind":"arxiv","version":3},"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":"2026-05-18T01:59:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OL+cx4ZcELwwQvkcwrVJWxRhPRHdzYtDMI+UGB2Wrhds2tkfPqHHNE2kIKB0YYt9tXjttS/sHCJSsIRSKVOACQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T08:00:10.309771Z"},"content_sha256":"ad2a60090219a184b89bd0162d07c6daccaa253288e2dedef90c6589e3fb472e","schema_version":"1.0","event_id":"sha256:ad2a60090219a184b89bd0162d07c6daccaa253288e2dedef90c6589e3fb472e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F22SHHWAEJTGLDLZZG7EGIOWM5/bundle.json","state_url":"https://pith.science/pith/F22SHHWAEJTGLDLZZG7EGIOWM5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F22SHHWAEJTGLDLZZG7EGIOWM5/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":"2026-05-25T08:00:10Z","links":{"resolver":"https://pith.science/pith/F22SHHWAEJTGLDLZZG7EGIOWM5","bundle":"https://pith.science/pith/F22SHHWAEJTGLDLZZG7EGIOWM5/bundle.json","state":"https://pith.science/pith/F22SHHWAEJTGLDLZZG7EGIOWM5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F22SHHWAEJTGLDLZZG7EGIOWM5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:F22SHHWAEJTGLDLZZG7EGIOWM5","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":"f4f11c5a80025d7cfb158563100390984ac8ba9e8e6ebe16b736cee21357ebd3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-17T21:01:45Z","title_canon_sha256":"d3215d222a6dd0f09e253c3028bd720f53942c22e927b653745b2a67b505acc5"},"schema_version":"1.0","source":{"id":"1111.4215","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.4215","created_at":"2026-05-18T01:59:31Z"},{"alias_kind":"arxiv_version","alias_value":"1111.4215v3","created_at":"2026-05-18T01:59:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.4215","created_at":"2026-05-18T01:59:31Z"},{"alias_kind":"pith_short_12","alias_value":"F22SHHWAEJTG","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"F22SHHWAEJTGLDLZ","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"F22SHHWA","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:ad2a60090219a184b89bd0162d07c6daccaa253288e2dedef90c6589e3fb472e","target":"graph","created_at":"2026-05-18T01:59:31Z","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":"Stars and dark matter account for most of the mass of early-type galaxies, but uncertainties in the stellar population and the dark matter profile make it challenging to distinguish between the two components. Nevertheless, precise observations of stellar and dark matter are extremely valuable for testing the many models of structure formation and evolution. We present a measurement of the stellar mass and inner slope of the dark matter halo of a massive early-type galaxy at $z=0.222$. The galaxy is the foreground deflector of the double Einstein ring gravitational lens system SDSSJ0946+1006, ","authors_text":"Adam S. Bolton, Alessandro Sonnenfeld, Leon V. E. Koopmans, Matthew W. Auger, Philip J. Marshall, Raphael Gavazzi, Sherry H. Suyu, Tommaso Treu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-17T21:01:45Z","title":"Evidence for dark matter contraction and a Salpeter IMF in a massive early-type galaxy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.4215","kind":"arxiv","version":3},"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":"sha256:2b782c6f21e76ecbc393c76299351ce5ed316986e60472bfd2e3b409041c7153","target":"record","created_at":"2026-05-18T01:59:31Z","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":"f4f11c5a80025d7cfb158563100390984ac8ba9e8e6ebe16b736cee21357ebd3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-17T21:01:45Z","title_canon_sha256":"d3215d222a6dd0f09e253c3028bd720f53942c22e927b653745b2a67b505acc5"},"schema_version":"1.0","source":{"id":"1111.4215","kind":"arxiv","version":3}},"canonical_sha256":"2eb5239ec02266658d79c9be4321d6676f66d1939d1b42039be0d666ea240fdc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2eb5239ec02266658d79c9be4321d6676f66d1939d1b42039be0d666ea240fdc","first_computed_at":"2026-05-18T01:59:31.444819Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:31.444819Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"M3lrJjZopjdNq0A5MzrhLE6iCb7t9S+kRcl5mfjMi611LwefzzfBlj+0cIciR+5sdqpqBVUjA5xJ2KSgcGBEAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:31.445393Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.4215","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2b782c6f21e76ecbc393c76299351ce5ed316986e60472bfd2e3b409041c7153","sha256:ad2a60090219a184b89bd0162d07c6daccaa253288e2dedef90c6589e3fb472e"],"state_sha256":"40d4aa14d249b041958871e32177adc07f69c7a06a3c2c284aab649d9eb84825"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y/RgIe1//kkWdNLxElYCDZy7V33PvovMQhCfHs7XC2h70hhBbaWH6XmBKqxHYk+mdZ+9aSfrJURRjuvr9YMvDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T08:00:10.312654Z","bundle_sha256":"47decd45bcf351394f0592e0e13a0439216a0d74cc076166a3e10da89570b460"}}