{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:MDRUTTZFTZCTO5QHGSXYBBU7MR","short_pith_number":"pith:MDRUTTZF","canonical_record":{"source":{"id":"1912.07452","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-16T15:35:06Z","cross_cats_sorted":[],"title_canon_sha256":"7ede1226210dbc288498b31e87efa62ed593f603182178e7ecf25b867517984b","abstract_canon_sha256":"c906f9daa5722b8c37cd7a0d67f49a6eb4beedc2a4c51f51fa4bb097c3e091ea"},"schema_version":"1.0"},"canonical_sha256":"60e349cf259e4537760734af80869f6446b027e8510eec1c8c78cf79896b0897","source":{"kind":"arxiv","id":"1912.07452","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.07452","created_at":"2026-07-05T00:45:17Z"},{"alias_kind":"arxiv_version","alias_value":"1912.07452v1","created_at":"2026-07-05T00:45:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.07452","created_at":"2026-07-05T00:45:17Z"},{"alias_kind":"pith_short_12","alias_value":"MDRUTTZFTZCT","created_at":"2026-07-05T00:45:17Z"},{"alias_kind":"pith_short_16","alias_value":"MDRUTTZFTZCTO5QH","created_at":"2026-07-05T00:45:17Z"},{"alias_kind":"pith_short_8","alias_value":"MDRUTTZF","created_at":"2026-07-05T00:45:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:MDRUTTZFTZCTO5QHGSXYBBU7MR","target":"record","payload":{"canonical_record":{"source":{"id":"1912.07452","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-16T15:35:06Z","cross_cats_sorted":[],"title_canon_sha256":"7ede1226210dbc288498b31e87efa62ed593f603182178e7ecf25b867517984b","abstract_canon_sha256":"c906f9daa5722b8c37cd7a0d67f49a6eb4beedc2a4c51f51fa4bb097c3e091ea"},"schema_version":"1.0"},"canonical_sha256":"60e349cf259e4537760734af80869f6446b027e8510eec1c8c78cf79896b0897","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:45:17.361408Z","signature_b64":"VG44dPtKPZK/iWKPkDW84SDHuN64HkW4blrd/AyygodVdl/Lhl6hZYNAWv7lx3U7sIgqmE5+swjgmXORGg7eDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"60e349cf259e4537760734af80869f6446b027e8510eec1c8c78cf79896b0897","last_reissued_at":"2026-07-05T00:45:17.360973Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:45:17.360973Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1912.07452","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":"2026-07-05T00:45:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EKq2evpub0FG1aEZaBeWrlnovBK9TJ4xflO+jZpB8B1rIpHipO+uKMkKsuP4X9Nb0PluctcRtcvF7YZUgmdOAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T10:58:15.696350Z"},"content_sha256":"16779f79480750cddfc540280a9315e831f38432d18f437f0a29dfd34a1114a3","schema_version":"1.0","event_id":"sha256:16779f79480750cddfc540280a9315e831f38432d18f437f0a29dfd34a1114a3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:MDRUTTZFTZCTO5QHGSXYBBU7MR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"VEGAS: VST Early-type GAlaxy Survey. V. IC 1459 group: Mass assembly history in low density environments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Cattapan, D.A. Forbes, E. Bannikova, E. Iodice, E.M. Corsini, G. D'Ago, M. Capaccioli, M. Spavone, P. Schipani, R. Rampazzo, S. Ciroi, T. Oosterloo","submitted_at":"2019-12-16T15:35:06Z","abstract_excerpt":"This paper is based on the multi-band VST Early-type GAlaxy Survey (VEGAS) with the VLT Survey Telescope (VST). We present new deep photometry of the IC1459 group in g and r band. The main goal of this work is to investigate the photometric properties of the IC1459 group, and to compare our results with those obtained for other galaxy groups studied in VEGAS, in order to provide a first view of the variation of their properties as a function of the evolution of the system. For all galaxies in the IC1459 group, we fit isophotes and extract the azimuthally-averaged surface-brightness profiles, t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.07452","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/1912.07452/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":"2026-07-05T00:45:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"De9VXAFDMuXHloEaxxCrvdrRmNbxntCSSNakBJHbnXQwWdCvw+L5lIKRTIXIV8YTU3SUzaZkyXa500vxxgpwCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T10:58:15.696852Z"},"content_sha256":"01f15d34fdd6dfeb7f7d4cca429f4952eb7f9d3f38899c4afedd406d28eed6c5","schema_version":"1.0","event_id":"sha256:01f15d34fdd6dfeb7f7d4cca429f4952eb7f9d3f38899c4afedd406d28eed6c5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MDRUTTZFTZCTO5QHGSXYBBU7MR/bundle.json","state_url":"https://pith.science/pith/MDRUTTZFTZCTO5QHGSXYBBU7MR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MDRUTTZFTZCTO5QHGSXYBBU7MR/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":"2026-08-05T10:58:15Z","links":{"resolver":"https://pith.science/pith/MDRUTTZFTZCTO5QHGSXYBBU7MR","bundle":"https://pith.science/pith/MDRUTTZFTZCTO5QHGSXYBBU7MR/bundle.json","state":"https://pith.science/pith/MDRUTTZFTZCTO5QHGSXYBBU7MR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MDRUTTZFTZCTO5QHGSXYBBU7MR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:MDRUTTZFTZCTO5QHGSXYBBU7MR","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":"c906f9daa5722b8c37cd7a0d67f49a6eb4beedc2a4c51f51fa4bb097c3e091ea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-16T15:35:06Z","title_canon_sha256":"7ede1226210dbc288498b31e87efa62ed593f603182178e7ecf25b867517984b"},"schema_version":"1.0","source":{"id":"1912.07452","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.07452","created_at":"2026-07-05T00:45:17Z"},{"alias_kind":"arxiv_version","alias_value":"1912.07452v1","created_at":"2026-07-05T00:45:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.07452","created_at":"2026-07-05T00:45:17Z"},{"alias_kind":"pith_short_12","alias_value":"MDRUTTZFTZCT","created_at":"2026-07-05T00:45:17Z"},{"alias_kind":"pith_short_16","alias_value":"MDRUTTZFTZCTO5QH","created_at":"2026-07-05T00:45:17Z"},{"alias_kind":"pith_short_8","alias_value":"MDRUTTZF","created_at":"2026-07-05T00:45:17Z"}],"graph_snapshots":[{"event_id":"sha256:01f15d34fdd6dfeb7f7d4cca429f4952eb7f9d3f38899c4afedd406d28eed6c5","target":"graph","created_at":"2026-07-05T00:45:17Z","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/1912.07452/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper is based on the multi-band VST Early-type GAlaxy Survey (VEGAS) with the VLT Survey Telescope (VST). We present new deep photometry of the IC1459 group in g and r band. The main goal of this work is to investigate the photometric properties of the IC1459 group, and to compare our results with those obtained for other galaxy groups studied in VEGAS, in order to provide a first view of the variation of their properties as a function of the evolution of the system. For all galaxies in the IC1459 group, we fit isophotes and extract the azimuthally-averaged surface-brightness profiles, t","authors_text":"A. Cattapan, D.A. Forbes, E. Bannikova, E. Iodice, E.M. Corsini, G. D'Ago, M. Capaccioli, M. Spavone, P. Schipani, R. Rampazzo, S. Ciroi, T. Oosterloo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-16T15:35:06Z","title":"VEGAS: VST Early-type GAlaxy Survey. V. IC 1459 group: Mass assembly history in low density environments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.07452","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":"sha256:16779f79480750cddfc540280a9315e831f38432d18f437f0a29dfd34a1114a3","target":"record","created_at":"2026-07-05T00:45:17Z","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":"c906f9daa5722b8c37cd7a0d67f49a6eb4beedc2a4c51f51fa4bb097c3e091ea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-16T15:35:06Z","title_canon_sha256":"7ede1226210dbc288498b31e87efa62ed593f603182178e7ecf25b867517984b"},"schema_version":"1.0","source":{"id":"1912.07452","kind":"arxiv","version":1}},"canonical_sha256":"60e349cf259e4537760734af80869f6446b027e8510eec1c8c78cf79896b0897","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"60e349cf259e4537760734af80869f6446b027e8510eec1c8c78cf79896b0897","first_computed_at":"2026-07-05T00:45:17.360973Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:45:17.360973Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VG44dPtKPZK/iWKPkDW84SDHuN64HkW4blrd/AyygodVdl/Lhl6hZYNAWv7lx3U7sIgqmE5+swjgmXORGg7eDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:45:17.361408Z","signed_message":"canonical_sha256_bytes"},"source_id":"1912.07452","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:16779f79480750cddfc540280a9315e831f38432d18f437f0a29dfd34a1114a3","sha256:01f15d34fdd6dfeb7f7d4cca429f4952eb7f9d3f38899c4afedd406d28eed6c5"],"state_sha256":"cb7350209e47f6c5180c8b193aec6da90aa0cffb4648e3aeeb36412bda31c2f8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QAhIkv2681zAbStIg4XAMyRpAd3jhGNsV7T18+t7B1a+N/omKfpk3swamIOLhZOb5rqZu/yb7sZlTRFGRSt2Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T10:58:15.701088Z","bundle_sha256":"e04f63cb25dd4d9020ab82cd3982cf77a7d3fa9d844823b82b409ec90460f997"}}