{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:56S7DNQA2EZCGNVVWBPLIUZZF4","short_pith_number":"pith:56S7DNQA","canonical_record":{"source":{"id":"astro-ph/0504270","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-04-12T13:12:30Z","cross_cats_sorted":[],"title_canon_sha256":"2eedcd886a6e5d43bb8666a033dffa254e5fa5ea09943792d273ef19f3b3be03","abstract_canon_sha256":"f6b89aebe9b3d439fb608885670414fda5077f815c1744ee21139cdeb24400f8"},"schema_version":"1.0"},"canonical_sha256":"efa5f1b600d1322336b5b05eb453392f0955230a7854bc2591646ee3a3a9d011","source":{"kind":"arxiv","id":"astro-ph/0504270","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0504270","created_at":"2026-07-04T15:26:29Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0504270v1","created_at":"2026-07-04T15:26:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0504270","created_at":"2026-07-04T15:26:29Z"},{"alias_kind":"pith_short_12","alias_value":"56S7DNQA2EZC","created_at":"2026-07-04T15:26:29Z"},{"alias_kind":"pith_short_16","alias_value":"56S7DNQA2EZCGNVV","created_at":"2026-07-04T15:26:29Z"},{"alias_kind":"pith_short_8","alias_value":"56S7DNQA","created_at":"2026-07-04T15:26:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:56S7DNQA2EZCGNVVWBPLIUZZF4","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0504270","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-04-12T13:12:30Z","cross_cats_sorted":[],"title_canon_sha256":"2eedcd886a6e5d43bb8666a033dffa254e5fa5ea09943792d273ef19f3b3be03","abstract_canon_sha256":"f6b89aebe9b3d439fb608885670414fda5077f815c1744ee21139cdeb24400f8"},"schema_version":"1.0"},"canonical_sha256":"efa5f1b600d1322336b5b05eb453392f0955230a7854bc2591646ee3a3a9d011","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:26:29.633925Z","signature_b64":"nOcyrNX4SCKgfroxXtKkvZAHvZOGsNLCqIVyJH82U75rAWIZzXmj5Fzb27TX1ZmdXFX+n8wcJeg3pidK494mDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"efa5f1b600d1322336b5b05eb453392f0955230a7854bc2591646ee3a3a9d011","last_reissued_at":"2026-07-04T15:26:29.633537Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:26:29.633537Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0504270","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":"2026-07-04T15:26:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vNc7H/cX0vS9oNrCC1LhzQfUisRf1czE8EJVfNwbmJKhme64VdUad04COVncjQJlM2XQd0DubxXvcmLoxwC5Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T18:22:36.266821Z"},"content_sha256":"c61ebc803ebf5294ca97101de2a4c04b21d9f91c63539da8163c41bffbd59456","schema_version":"1.0","event_id":"sha256:c61ebc803ebf5294ca97101de2a4c04b21d9f91c63539da8163c41bffbd59456"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:56S7DNQA2EZCGNVVWBPLIUZZF4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The HI content of Fornax dwarf elliptical galaxies: FCC032 and FCC336","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D. Michielsen, H. Dejonghe, M. Baes, P. Buyle, S. De Rijcke","submitted_at":"2005-04-12T13:12:30Z","abstract_excerpt":"We present HI 21cm line observations, obtained with the Australia Telescope Compact Array, of two dwarf elliptical galaxies (dEs) in the Fornax cluster: FCC032 and FCC336. The optical positions and velocities of these galaxies place them well within the Fornax cluster. FCC032 was detected at the 3sigma significance level with a total HI flux density of 0.66+-0.22 Jy km s^-1 or an HI mass of 5.0+-1.7 10^7 h_75^-2 M_sun. Based on our deep Halpha+[NII] narrow-band images, obtained with FORS2 mounted on the VLT, this dE was already known to contain 600-1800 h_75^-2 M_sun of ionised Hydrogen (depen"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0504270","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/astro-ph/0504270/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":"2026-07-04T15:26:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2YyrAxk4KBXpbwka+rnZhWjWYMQsFpgq4hdAzAlRU4m37lpdala5xfOYrFlqu43EdshgFMLtFW4aa6+Mfji3Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T18:22:36.267455Z"},"content_sha256":"90f6b8bd8865034d7cdea99d7ef00cf7b24ea3d3c6476d2a89ca043dd376f97e","schema_version":"1.0","event_id":"sha256:90f6b8bd8865034d7cdea99d7ef00cf7b24ea3d3c6476d2a89ca043dd376f97e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/56S7DNQA2EZCGNVVWBPLIUZZF4/bundle.json","state_url":"https://pith.science/pith/56S7DNQA2EZCGNVVWBPLIUZZF4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/56S7DNQA2EZCGNVVWBPLIUZZF4/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":"2026-08-10T18:22:36Z","links":{"resolver":"https://pith.science/pith/56S7DNQA2EZCGNVVWBPLIUZZF4","bundle":"https://pith.science/pith/56S7DNQA2EZCGNVVWBPLIUZZF4/bundle.json","state":"https://pith.science/pith/56S7DNQA2EZCGNVVWBPLIUZZF4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/56S7DNQA2EZCGNVVWBPLIUZZF4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:56S7DNQA2EZCGNVVWBPLIUZZF4","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":"f6b89aebe9b3d439fb608885670414fda5077f815c1744ee21139cdeb24400f8","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-04-12T13:12:30Z","title_canon_sha256":"2eedcd886a6e5d43bb8666a033dffa254e5fa5ea09943792d273ef19f3b3be03"},"schema_version":"1.0","source":{"id":"astro-ph/0504270","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0504270","created_at":"2026-07-04T15:26:29Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0504270v1","created_at":"2026-07-04T15:26:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0504270","created_at":"2026-07-04T15:26:29Z"},{"alias_kind":"pith_short_12","alias_value":"56S7DNQA2EZC","created_at":"2026-07-04T15:26:29Z"},{"alias_kind":"pith_short_16","alias_value":"56S7DNQA2EZCGNVV","created_at":"2026-07-04T15:26:29Z"},{"alias_kind":"pith_short_8","alias_value":"56S7DNQA","created_at":"2026-07-04T15:26:29Z"}],"graph_snapshots":[{"event_id":"sha256:90f6b8bd8865034d7cdea99d7ef00cf7b24ea3d3c6476d2a89ca043dd376f97e","target":"graph","created_at":"2026-07-04T15:26:29Z","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/0504270/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present HI 21cm line observations, obtained with the Australia Telescope Compact Array, of two dwarf elliptical galaxies (dEs) in the Fornax cluster: FCC032 and FCC336. The optical positions and velocities of these galaxies place them well within the Fornax cluster. FCC032 was detected at the 3sigma significance level with a total HI flux density of 0.66+-0.22 Jy km s^-1 or an HI mass of 5.0+-1.7 10^7 h_75^-2 M_sun. Based on our deep Halpha+[NII] narrow-band images, obtained with FORS2 mounted on the VLT, this dE was already known to contain 600-1800 h_75^-2 M_sun of ionised Hydrogen (depen","authors_text":"D. Michielsen, H. Dejonghe, M. Baes, P. Buyle, S. De Rijcke","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-04-12T13:12:30Z","title":"The HI content of Fornax dwarf elliptical galaxies: FCC032 and FCC336"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0504270","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:c61ebc803ebf5294ca97101de2a4c04b21d9f91c63539da8163c41bffbd59456","target":"record","created_at":"2026-07-04T15:26:29Z","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":"f6b89aebe9b3d439fb608885670414fda5077f815c1744ee21139cdeb24400f8","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-04-12T13:12:30Z","title_canon_sha256":"2eedcd886a6e5d43bb8666a033dffa254e5fa5ea09943792d273ef19f3b3be03"},"schema_version":"1.0","source":{"id":"astro-ph/0504270","kind":"arxiv","version":1}},"canonical_sha256":"efa5f1b600d1322336b5b05eb453392f0955230a7854bc2591646ee3a3a9d011","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"efa5f1b600d1322336b5b05eb453392f0955230a7854bc2591646ee3a3a9d011","first_computed_at":"2026-07-04T15:26:29.633537Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:26:29.633537Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nOcyrNX4SCKgfroxXtKkvZAHvZOGsNLCqIVyJH82U75rAWIZzXmj5Fzb27TX1ZmdXFX+n8wcJeg3pidK494mDg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:26:29.633925Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0504270","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c61ebc803ebf5294ca97101de2a4c04b21d9f91c63539da8163c41bffbd59456","sha256:90f6b8bd8865034d7cdea99d7ef00cf7b24ea3d3c6476d2a89ca043dd376f97e"],"state_sha256":"96df51c3ed75a778c6471a2f772933125f3b7ae7c6cedada0bb2e7f00ea91bb6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T+ZkACfWtDmWNJwXGaRW+zH05gSHlZJ6rsmKlMtwVLzSZ4G9LHEyvnDbeTjEUOaAnD6EFTwbUeuFA3rpwvWpDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T18:22:36.271476Z","bundle_sha256":"82ad23231697fb0ad8305ec0763892b6204524e25e2093ea99eb307a74b8c296"}}