{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:3Z3X6IEAV3ECZXTZCOIPILUW6W","short_pith_number":"pith:3Z3X6IEA","canonical_record":{"source":{"id":"1704.08434","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-27T05:03:28Z","cross_cats_sorted":[],"title_canon_sha256":"9a502800f5ba453963870d34f75a2b46d3243980118fd9abc323df777c6e70e9","abstract_canon_sha256":"8b33ad0a167968268e7f664efe2ea232fa1e455cdee10beebc6744cb52428dc9"},"schema_version":"1.0"},"canonical_sha256":"de777f2080aec82cde791390f42e96f5bf81167740aa6153e5ecd1f91d88cd2e","source":{"kind":"arxiv","id":"1704.08434","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.08434","created_at":"2026-05-18T00:37:18Z"},{"alias_kind":"arxiv_version","alias_value":"1704.08434v1","created_at":"2026-05-18T00:37:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.08434","created_at":"2026-05-18T00:37:18Z"},{"alias_kind":"pith_short_12","alias_value":"3Z3X6IEAV3EC","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3Z3X6IEAV3ECZXTZ","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3Z3X6IEA","created_at":"2026-05-18T12:30:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:3Z3X6IEAV3ECZXTZCOIPILUW6W","target":"record","payload":{"canonical_record":{"source":{"id":"1704.08434","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-27T05:03:28Z","cross_cats_sorted":[],"title_canon_sha256":"9a502800f5ba453963870d34f75a2b46d3243980118fd9abc323df777c6e70e9","abstract_canon_sha256":"8b33ad0a167968268e7f664efe2ea232fa1e455cdee10beebc6744cb52428dc9"},"schema_version":"1.0"},"canonical_sha256":"de777f2080aec82cde791390f42e96f5bf81167740aa6153e5ecd1f91d88cd2e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:37:18.359172Z","signature_b64":"kpgwoCIzJPKPXmbHvZbdnF12u4+RvqQAMMt8ntDzmOxfNyc77qvUQnW3wev72VXxcO3MTyD8hoW7H4H1C2RnBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"de777f2080aec82cde791390f42e96f5bf81167740aa6153e5ecd1f91d88cd2e","last_reissued_at":"2026-05-18T00:37:18.358438Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:37:18.358438Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.08434","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":"2026-05-18T00:37:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RwA7DqbB2sEEyu7KV9WQOWW6G3YwmYOVZ1jgbThPWZFRaRXazGiRRUs/DCrg26mG3k5OiFutYgYlOPNfD6qlCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T22:21:35.164571Z"},"content_sha256":"c62bba0d19c582f014613aeff585a8d901157b736568f893708821925839f1d9","schema_version":"1.0","event_id":"sha256:c62bba0d19c582f014613aeff585a8d901157b736568f893708821925839f1d9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:3Z3X6IEAV3ECZXTZCOIPILUW6W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Formation of S0 Galaxies with Counter-Rotating Neutral and Molecular Hydrogen","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Kenji Bekki, Luca Cortese, Robert Bassett, Warrick J. Couch","submitted_at":"2017-04-27T05:03:28Z","abstract_excerpt":"The observation of counter rotation in galaxies (i.e. gas that rotates in the opposite direction to the stellar component or two co-spatial stellar populations with opposite rotation) is becoming more commonplace with modern integral field spectroscopic surveys. In this paper we explore the emergence of counter-rotation (both stellar and gaseous) in S0 galaxies from smoothed-particle hydrodynamics simulations of 1/10 mass ratio minor mergers between a 10^10.8 solar mass disk galaxy with a bulge-to-total ration of 0.17 and a gas rich companion (gas-to-stellar mass fraction of 5.0). These simula"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.08434","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":"2026-05-18T00:37:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PiTwb9H28hJAS8hTbZ48nqXAGA8EnXn+2quWC/6u31YF1QAGHRW0RxgWirhKwEm0QaABKcEmDrc10+Ll045rAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T22:21:35.164918Z"},"content_sha256":"6e0e3746cf51d921b90606050fe072f80b282440f2289189b4b0b335d4da089c","schema_version":"1.0","event_id":"sha256:6e0e3746cf51d921b90606050fe072f80b282440f2289189b4b0b335d4da089c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3Z3X6IEAV3ECZXTZCOIPILUW6W/bundle.json","state_url":"https://pith.science/pith/3Z3X6IEAV3ECZXTZCOIPILUW6W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3Z3X6IEAV3ECZXTZCOIPILUW6W/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":"2026-05-19T22:21:35Z","links":{"resolver":"https://pith.science/pith/3Z3X6IEAV3ECZXTZCOIPILUW6W","bundle":"https://pith.science/pith/3Z3X6IEAV3ECZXTZCOIPILUW6W/bundle.json","state":"https://pith.science/pith/3Z3X6IEAV3ECZXTZCOIPILUW6W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3Z3X6IEAV3ECZXTZCOIPILUW6W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:3Z3X6IEAV3ECZXTZCOIPILUW6W","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":"8b33ad0a167968268e7f664efe2ea232fa1e455cdee10beebc6744cb52428dc9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-27T05:03:28Z","title_canon_sha256":"9a502800f5ba453963870d34f75a2b46d3243980118fd9abc323df777c6e70e9"},"schema_version":"1.0","source":{"id":"1704.08434","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.08434","created_at":"2026-05-18T00:37:18Z"},{"alias_kind":"arxiv_version","alias_value":"1704.08434v1","created_at":"2026-05-18T00:37:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.08434","created_at":"2026-05-18T00:37:18Z"},{"alias_kind":"pith_short_12","alias_value":"3Z3X6IEAV3EC","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3Z3X6IEAV3ECZXTZ","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3Z3X6IEA","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:6e0e3746cf51d921b90606050fe072f80b282440f2289189b4b0b335d4da089c","target":"graph","created_at":"2026-05-18T00:37:18Z","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":"The observation of counter rotation in galaxies (i.e. gas that rotates in the opposite direction to the stellar component or two co-spatial stellar populations with opposite rotation) is becoming more commonplace with modern integral field spectroscopic surveys. In this paper we explore the emergence of counter-rotation (both stellar and gaseous) in S0 galaxies from smoothed-particle hydrodynamics simulations of 1/10 mass ratio minor mergers between a 10^10.8 solar mass disk galaxy with a bulge-to-total ration of 0.17 and a gas rich companion (gas-to-stellar mass fraction of 5.0). These simula","authors_text":"Kenji Bekki, Luca Cortese, Robert Bassett, Warrick J. Couch","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-27T05:03:28Z","title":"The Formation of S0 Galaxies with Counter-Rotating Neutral and Molecular Hydrogen"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.08434","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:c62bba0d19c582f014613aeff585a8d901157b736568f893708821925839f1d9","target":"record","created_at":"2026-05-18T00:37:18Z","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":"8b33ad0a167968268e7f664efe2ea232fa1e455cdee10beebc6744cb52428dc9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-27T05:03:28Z","title_canon_sha256":"9a502800f5ba453963870d34f75a2b46d3243980118fd9abc323df777c6e70e9"},"schema_version":"1.0","source":{"id":"1704.08434","kind":"arxiv","version":1}},"canonical_sha256":"de777f2080aec82cde791390f42e96f5bf81167740aa6153e5ecd1f91d88cd2e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"de777f2080aec82cde791390f42e96f5bf81167740aa6153e5ecd1f91d88cd2e","first_computed_at":"2026-05-18T00:37:18.358438Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:37:18.358438Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kpgwoCIzJPKPXmbHvZbdnF12u4+RvqQAMMt8ntDzmOxfNyc77qvUQnW3wev72VXxcO3MTyD8hoW7H4H1C2RnBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:37:18.359172Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.08434","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c62bba0d19c582f014613aeff585a8d901157b736568f893708821925839f1d9","sha256:6e0e3746cf51d921b90606050fe072f80b282440f2289189b4b0b335d4da089c"],"state_sha256":"8bc81166e0f3c7529867c075202f9ed558109ce8cc94662d5d82880324be7d9a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HWbqcYcFNOcXWfqbGtyNSWI0Gfg/t6cAFPv4frfLz1rnfdEB+L2iQmkK6ThTWpXAhkNqmapRD+PbfVbyn+kJCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T22:21:35.167192Z","bundle_sha256":"0a4bb335d6c26225fae6fac2a95b0103db283377d8c05c1977cf78b36a77e8d9"}}