{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:TJNNJ2JMXAMEY5SSQBQNFU7KOV","short_pith_number":"pith:TJNNJ2JM","canonical_record":{"source":{"id":"astro-ph/0608292","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-08-14T18:18:02Z","cross_cats_sorted":[],"title_canon_sha256":"c94a756b5d6ab0e709dcf9b5f9dbe2ff5c82341676e84b544471fec3b96befb2","abstract_canon_sha256":"3dcee2bfc99d0214f7e0afa3c137f764280e65c218f0fbfbfe680148469ad659"},"schema_version":"1.0"},"canonical_sha256":"9a5ad4e92cb8184c76528060d2d3ea757574fb30e672eb04330fd3c5350d748b","source":{"kind":"arxiv","id":"astro-ph/0608292","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0608292","created_at":"2026-07-04T16:59:15Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0608292v2","created_at":"2026-07-04T16:59:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0608292","created_at":"2026-07-04T16:59:15Z"},{"alias_kind":"pith_short_12","alias_value":"TJNNJ2JMXAME","created_at":"2026-07-04T16:59:15Z"},{"alias_kind":"pith_short_16","alias_value":"TJNNJ2JMXAMEY5SS","created_at":"2026-07-04T16:59:15Z"},{"alias_kind":"pith_short_8","alias_value":"TJNNJ2JM","created_at":"2026-07-04T16:59:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:TJNNJ2JMXAMEY5SSQBQNFU7KOV","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0608292","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-08-14T18:18:02Z","cross_cats_sorted":[],"title_canon_sha256":"c94a756b5d6ab0e709dcf9b5f9dbe2ff5c82341676e84b544471fec3b96befb2","abstract_canon_sha256":"3dcee2bfc99d0214f7e0afa3c137f764280e65c218f0fbfbfe680148469ad659"},"schema_version":"1.0"},"canonical_sha256":"9a5ad4e92cb8184c76528060d2d3ea757574fb30e672eb04330fd3c5350d748b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:59:15.513021Z","signature_b64":"FqrAEjUSYO8PRiCkVAYfZKN8rWhdR3OYCeecCPzzR6eYifLadwDSB5EP4pyoz584/8kXAm4rsfwljlFhC31kAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9a5ad4e92cb8184c76528060d2d3ea757574fb30e672eb04330fd3c5350d748b","last_reissued_at":"2026-07-04T16:59:15.512583Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:59:15.512583Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0608292","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T16:59:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KfgRwt/0uhXrrW76PuWFVqUdB4c+MxByR+AFq92O2PFh94oattwUUpScCGbCG79xlhUy2U27nX03FQVHKZjmAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T23:12:09.250515Z"},"content_sha256":"38d4eababe8d401a62aa80e4087311d745df8824e4d6e6a216d6970190ad352c","schema_version":"1.0","event_id":"sha256:38d4eababe8d401a62aa80e4087311d745df8824e4d6e6a216d6970190ad352c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:TJNNJ2JMXAMEY5SSQBQNFU7KOV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"NGC 4654: polarized radio continuum emission as a diagnostic tool for a galaxy--cluster interaction","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"B. Vollmer, K. Otmianowska-Mazur, K.T. Chy\\.zy, M. Soida","submitted_at":"2006-08-14T18:18:02Z","abstract_excerpt":"A recent comparison between deep VLA HI observations and dynamical models of the Virgo cluster spiral galaxy NGC 4654 has shown that only a model involving a combination of a tidal interaction and ram pressure can reproduce the data. Deep radio polarization studies, together with detailed MHD modeling, can independently verify those conclusions, that are based on HI observations and dynamical models. We performed deep polarized radio-continuum observations of the Virgo cluster spiral galaxy NGC 4654 with the Effelsberg 100m telescope at 8.35 GHz and the VLA at 4.85 GHz. Detailed 3D MHD simulat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0608292","kind":"arxiv","version":2},"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/astro-ph/0608292/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":"2026-07-04T16:59:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6cy4JUWvpD9N5Z5h5xxMPMRQobUhq95HEKm0RcTWKbujLm4mkGzfOB7bmlYWly7gMKJ/jPOtmaOrLfEoJpexCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T23:12:09.250872Z"},"content_sha256":"22d5b8cdb1f1331b705f5041a92dd6f606b8eeaecbc4fab81d5bd63d4d9a8cde","schema_version":"1.0","event_id":"sha256:22d5b8cdb1f1331b705f5041a92dd6f606b8eeaecbc4fab81d5bd63d4d9a8cde"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TJNNJ2JMXAMEY5SSQBQNFU7KOV/bundle.json","state_url":"https://pith.science/pith/TJNNJ2JMXAMEY5SSQBQNFU7KOV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TJNNJ2JMXAMEY5SSQBQNFU7KOV/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":"2026-07-04T23:12:09Z","links":{"resolver":"https://pith.science/pith/TJNNJ2JMXAMEY5SSQBQNFU7KOV","bundle":"https://pith.science/pith/TJNNJ2JMXAMEY5SSQBQNFU7KOV/bundle.json","state":"https://pith.science/pith/TJNNJ2JMXAMEY5SSQBQNFU7KOV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TJNNJ2JMXAMEY5SSQBQNFU7KOV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:TJNNJ2JMXAMEY5SSQBQNFU7KOV","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":"3dcee2bfc99d0214f7e0afa3c137f764280e65c218f0fbfbfe680148469ad659","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-08-14T18:18:02Z","title_canon_sha256":"c94a756b5d6ab0e709dcf9b5f9dbe2ff5c82341676e84b544471fec3b96befb2"},"schema_version":"1.0","source":{"id":"astro-ph/0608292","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0608292","created_at":"2026-07-04T16:59:15Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0608292v2","created_at":"2026-07-04T16:59:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0608292","created_at":"2026-07-04T16:59:15Z"},{"alias_kind":"pith_short_12","alias_value":"TJNNJ2JMXAME","created_at":"2026-07-04T16:59:15Z"},{"alias_kind":"pith_short_16","alias_value":"TJNNJ2JMXAMEY5SS","created_at":"2026-07-04T16:59:15Z"},{"alias_kind":"pith_short_8","alias_value":"TJNNJ2JM","created_at":"2026-07-04T16:59:15Z"}],"graph_snapshots":[{"event_id":"sha256:22d5b8cdb1f1331b705f5041a92dd6f606b8eeaecbc4fab81d5bd63d4d9a8cde","target":"graph","created_at":"2026-07-04T16:59:15Z","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/astro-ph/0608292/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A recent comparison between deep VLA HI observations and dynamical models of the Virgo cluster spiral galaxy NGC 4654 has shown that only a model involving a combination of a tidal interaction and ram pressure can reproduce the data. Deep radio polarization studies, together with detailed MHD modeling, can independently verify those conclusions, that are based on HI observations and dynamical models. We performed deep polarized radio-continuum observations of the Virgo cluster spiral galaxy NGC 4654 with the Effelsberg 100m telescope at 8.35 GHz and the VLA at 4.85 GHz. Detailed 3D MHD simulat","authors_text":"B. Vollmer, K. Otmianowska-Mazur, K.T. Chy\\.zy, M. Soida","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-08-14T18:18:02Z","title":"NGC 4654: polarized radio continuum emission as a diagnostic tool for a galaxy--cluster interaction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0608292","kind":"arxiv","version":2},"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":"sha256:38d4eababe8d401a62aa80e4087311d745df8824e4d6e6a216d6970190ad352c","target":"record","created_at":"2026-07-04T16:59:15Z","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":"3dcee2bfc99d0214f7e0afa3c137f764280e65c218f0fbfbfe680148469ad659","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-08-14T18:18:02Z","title_canon_sha256":"c94a756b5d6ab0e709dcf9b5f9dbe2ff5c82341676e84b544471fec3b96befb2"},"schema_version":"1.0","source":{"id":"astro-ph/0608292","kind":"arxiv","version":2}},"canonical_sha256":"9a5ad4e92cb8184c76528060d2d3ea757574fb30e672eb04330fd3c5350d748b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9a5ad4e92cb8184c76528060d2d3ea757574fb30e672eb04330fd3c5350d748b","first_computed_at":"2026-07-04T16:59:15.512583Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:59:15.512583Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FqrAEjUSYO8PRiCkVAYfZKN8rWhdR3OYCeecCPzzR6eYifLadwDSB5EP4pyoz584/8kXAm4rsfwljlFhC31kAg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:59:15.513021Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0608292","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:38d4eababe8d401a62aa80e4087311d745df8824e4d6e6a216d6970190ad352c","sha256:22d5b8cdb1f1331b705f5041a92dd6f606b8eeaecbc4fab81d5bd63d4d9a8cde"],"state_sha256":"7d793f1f39f9174144545ec68ac2490aca947a66967b98110fe8de4d2d3b5755"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z56VGmj48QycQwjAWwbajeMLmRS5XFENDYU4oIjVdLVjEwvBTZYJtZkI4SX7XivEFN5LoKWv0fCBL9asvVQwCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-04T23:12:09.252797Z","bundle_sha256":"dbb94ce3579438a0f8ec039c000bd49d90c79b84edb9a13abd55baa10b253816"}}