{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:NFWWMCVSB53ES5KXCPC7YDBMVA","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":"0093a3616503cd8c69faf1b14f4717710877a2b839c480e174d02507ebb0092d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-01-05T19:00:01Z","title_canon_sha256":"429ce3994e5eb7c57380b9d4e852c8765d70ca01a3ba95d7bac1ff387ebfdda8"},"schema_version":"1.0","source":{"id":"1701.01441","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.01441","created_at":"2026-05-18T00:53:16Z"},{"alias_kind":"arxiv_version","alias_value":"1701.01441v1","created_at":"2026-05-18T00:53:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.01441","created_at":"2026-05-18T00:53:16Z"},{"alias_kind":"pith_short_12","alias_value":"NFWWMCVSB53E","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"NFWWMCVSB53ES5KX","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"NFWWMCVS","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:4d8692d3b9585faaad3f5532b332e2cc74bbdae966ac95572fc14d5621dbf132","target":"graph","created_at":"2026-05-18T00:53:16Z","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":"According to the standard model of cosmology, galaxies are embedded in dark matter halos which are made of particles beyond the standard model of particle physics, thus extending the mass and the size of the visible baryonic matter by typically two orders of magnitude. The observed gas distribution throughout the nearby M81 group of galaxies shows evidence for past significant galaxy--galaxy interactions but without a merger having occurred. This group is here studied for possible dynamical solutions within the dark-matter standard model. In order to cover a comprehensive set of initial condit","authors_text":"Ingo Thies, Pavel Kroupa, Wolfgang Oehm","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-01-05T19:00:01Z","title":"Constraints on the dynamical evolution of the galaxy group M81"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.01441","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":"sha256:33e74ea4d3196ec015816804b2ad1e7f66a5cbc42ab69b5b4b937355f08add97","target":"record","created_at":"2026-05-18T00:53:16Z","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":"0093a3616503cd8c69faf1b14f4717710877a2b839c480e174d02507ebb0092d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-01-05T19:00:01Z","title_canon_sha256":"429ce3994e5eb7c57380b9d4e852c8765d70ca01a3ba95d7bac1ff387ebfdda8"},"schema_version":"1.0","source":{"id":"1701.01441","kind":"arxiv","version":1}},"canonical_sha256":"696d660ab20f7649755713c5fc0c2ca80dd89590c7cd1c607457b650ba4422f9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"696d660ab20f7649755713c5fc0c2ca80dd89590c7cd1c607457b650ba4422f9","first_computed_at":"2026-05-18T00:53:16.793782Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:53:16.793782Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cvq/RJHH4aIQqO0mFQlPiGM0HWbii2LoqmZsnn0m8nJQ3hdeBMMGcftR9rPor4MV51gynkMDWD85t0rDZRfUBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:53:16.795203Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.01441","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:33e74ea4d3196ec015816804b2ad1e7f66a5cbc42ab69b5b4b937355f08add97","sha256:4d8692d3b9585faaad3f5532b332e2cc74bbdae966ac95572fc14d5621dbf132"],"state_sha256":"40d766425b0e92692c7a39e591a3e3cd553adcbea5bf9641424b9c82ba2519c0"}