{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:BIXOYB4QQBEAQW3SJ7PVGURWSF","short_pith_number":"pith:BIXOYB4Q","canonical_record":{"source":{"id":"2006.14847","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-06-26T07:50:51Z","cross_cats_sorted":[],"title_canon_sha256":"8780dcfb4705e9d6ac4c7d28eb016c53c048d45bfe9da8390698229c8aab268a","abstract_canon_sha256":"9ff3767142c3a5a0767ac6825fb41bec26120c9cdb2cc913e9c1d72db01b292e"},"schema_version":"1.0"},"canonical_sha256":"0a2eec07908048085b724fdf535236915dd6d7c78981ab6633e02f51dd4fe740","source":{"kind":"arxiv","id":"2006.14847","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.14847","created_at":"2026-07-05T01:35:35Z"},{"alias_kind":"arxiv_version","alias_value":"2006.14847v1","created_at":"2026-07-05T01:35:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.14847","created_at":"2026-07-05T01:35:35Z"},{"alias_kind":"pith_short_12","alias_value":"BIXOYB4QQBEA","created_at":"2026-07-05T01:35:35Z"},{"alias_kind":"pith_short_16","alias_value":"BIXOYB4QQBEAQW3S","created_at":"2026-07-05T01:35:35Z"},{"alias_kind":"pith_short_8","alias_value":"BIXOYB4Q","created_at":"2026-07-05T01:35:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:BIXOYB4QQBEAQW3SJ7PVGURWSF","target":"record","payload":{"canonical_record":{"source":{"id":"2006.14847","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-06-26T07:50:51Z","cross_cats_sorted":[],"title_canon_sha256":"8780dcfb4705e9d6ac4c7d28eb016c53c048d45bfe9da8390698229c8aab268a","abstract_canon_sha256":"9ff3767142c3a5a0767ac6825fb41bec26120c9cdb2cc913e9c1d72db01b292e"},"schema_version":"1.0"},"canonical_sha256":"0a2eec07908048085b724fdf535236915dd6d7c78981ab6633e02f51dd4fe740","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:35:35.511633Z","signature_b64":"lFTCDNDAAzaa65fTOI9/iwj5F78DF3mfdi7MNntLFc3xXyDQ/AnuOhlzNUCLgnBT3zAllgIoyoPQE8kSi7Q+DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0a2eec07908048085b724fdf535236915dd6d7c78981ab6633e02f51dd4fe740","last_reissued_at":"2026-07-05T01:35:35.511171Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:35:35.511171Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2006.14847","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":"2026-07-05T01:35:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OYMzuw33lmBlbh0wv1fG8EMWVLT+ufztIG5600/LE6RkaGxhsii3AUgMt8uIgoQ56nzNTxBUZWWzp19DuiClBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:43:26.917435Z"},"content_sha256":"b1adba1d218366a642adccf62379b188b6e1ce40bb4af7b9addc987fdae6576f","schema_version":"1.0","event_id":"sha256:b1adba1d218366a642adccf62379b188b6e1ce40bb4af7b9addc987fdae6576f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:BIXOYB4QQBEAQW3SJ7PVGURWSF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Bars formed in galaxy merging and their classification with deep learning","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Kenji Bekki, Mitchell Cavanagh","submitted_at":"2020-06-26T07:50:51Z","abstract_excerpt":"Stellar bars are a common morphological feature of spiral galaxies. While it is known that they can form in isolation, or be induced tidally, few studies have explored the production of stellar bars in galaxy merging. We look to investigate bar formation in galaxy merging using methods from deep learning to analyse our N-body simulations. The primary aim is to determine the constraints on the mass ratio and orientations of merging galaxies that are most conducive to bar formation. We further aim to explore whether it is possible to classify simulated barred spiral galaxies based on the mechani"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.14847","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2006.14847/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T01:35:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mVjtRA4MAFacfaw28yLyVT+65hloJSWw2U1d2aTlDUck9MKNQ+yFKzPEnARgf0nPFwHv3W9VjJp53JBq8ubXBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:43:26.917960Z"},"content_sha256":"9af15601315f549db404cf1ace53449c43c885db1aa57e58fb2f23ce80dbf7db","schema_version":"1.0","event_id":"sha256:9af15601315f549db404cf1ace53449c43c885db1aa57e58fb2f23ce80dbf7db"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BIXOYB4QQBEAQW3SJ7PVGURWSF/bundle.json","state_url":"https://pith.science/pith/BIXOYB4QQBEAQW3SJ7PVGURWSF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BIXOYB4QQBEAQW3SJ7PVGURWSF/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":"2026-08-03T19:43:26Z","links":{"resolver":"https://pith.science/pith/BIXOYB4QQBEAQW3SJ7PVGURWSF","bundle":"https://pith.science/pith/BIXOYB4QQBEAQW3SJ7PVGURWSF/bundle.json","state":"https://pith.science/pith/BIXOYB4QQBEAQW3SJ7PVGURWSF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BIXOYB4QQBEAQW3SJ7PVGURWSF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:BIXOYB4QQBEAQW3SJ7PVGURWSF","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":"9ff3767142c3a5a0767ac6825fb41bec26120c9cdb2cc913e9c1d72db01b292e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-06-26T07:50:51Z","title_canon_sha256":"8780dcfb4705e9d6ac4c7d28eb016c53c048d45bfe9da8390698229c8aab268a"},"schema_version":"1.0","source":{"id":"2006.14847","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.14847","created_at":"2026-07-05T01:35:35Z"},{"alias_kind":"arxiv_version","alias_value":"2006.14847v1","created_at":"2026-07-05T01:35:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.14847","created_at":"2026-07-05T01:35:35Z"},{"alias_kind":"pith_short_12","alias_value":"BIXOYB4QQBEA","created_at":"2026-07-05T01:35:35Z"},{"alias_kind":"pith_short_16","alias_value":"BIXOYB4QQBEAQW3S","created_at":"2026-07-05T01:35:35Z"},{"alias_kind":"pith_short_8","alias_value":"BIXOYB4Q","created_at":"2026-07-05T01:35:35Z"}],"graph_snapshots":[{"event_id":"sha256:9af15601315f549db404cf1ace53449c43c885db1aa57e58fb2f23ce80dbf7db","target":"graph","created_at":"2026-07-05T01:35:35Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2006.14847/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Stellar bars are a common morphological feature of spiral galaxies. While it is known that they can form in isolation, or be induced tidally, few studies have explored the production of stellar bars in galaxy merging. We look to investigate bar formation in galaxy merging using methods from deep learning to analyse our N-body simulations. The primary aim is to determine the constraints on the mass ratio and orientations of merging galaxies that are most conducive to bar formation. We further aim to explore whether it is possible to classify simulated barred spiral galaxies based on the mechani","authors_text":"Kenji Bekki, Mitchell Cavanagh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-06-26T07:50:51Z","title":"Bars formed in galaxy merging and their classification with deep learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.14847","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:b1adba1d218366a642adccf62379b188b6e1ce40bb4af7b9addc987fdae6576f","target":"record","created_at":"2026-07-05T01:35:35Z","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":"9ff3767142c3a5a0767ac6825fb41bec26120c9cdb2cc913e9c1d72db01b292e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-06-26T07:50:51Z","title_canon_sha256":"8780dcfb4705e9d6ac4c7d28eb016c53c048d45bfe9da8390698229c8aab268a"},"schema_version":"1.0","source":{"id":"2006.14847","kind":"arxiv","version":1}},"canonical_sha256":"0a2eec07908048085b724fdf535236915dd6d7c78981ab6633e02f51dd4fe740","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0a2eec07908048085b724fdf535236915dd6d7c78981ab6633e02f51dd4fe740","first_computed_at":"2026-07-05T01:35:35.511171Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:35:35.511171Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lFTCDNDAAzaa65fTOI9/iwj5F78DF3mfdi7MNntLFc3xXyDQ/AnuOhlzNUCLgnBT3zAllgIoyoPQE8kSi7Q+DA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:35:35.511633Z","signed_message":"canonical_sha256_bytes"},"source_id":"2006.14847","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b1adba1d218366a642adccf62379b188b6e1ce40bb4af7b9addc987fdae6576f","sha256:9af15601315f549db404cf1ace53449c43c885db1aa57e58fb2f23ce80dbf7db"],"state_sha256":"1aa11f0766ad867b4b9c61f7f5becf0e060860e1d1a8bdc4fa74b4155de373f6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6ToQkWCtpd0ttCMDJGItTixWgf73DCGK3WyWxh5/6i10dujVAJhZxgsTpmsfVqZZo2MXXL7lTK1H2sbPTEENCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T19:43:26.923228Z","bundle_sha256":"33d4432c60602c9e2403e0d848ba1f1da44e9bb59e2f7d446e8e5acb13efafb0"}}