{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:PGWVV4RNAKYM4T43RF23YM3ILE","short_pith_number":"pith:PGWVV4RN","canonical_record":{"source":{"id":"0903.0812","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-03-04T16:48:24Z","cross_cats_sorted":[],"title_canon_sha256":"a3ad3f7e47b3d3130b6b29be81d1ae2b59b0903f77aac3d58de0828a6c5c19fd","abstract_canon_sha256":"7b845d59aff0ef4cfd1bfbddff5733b82b9f671aadda86543076daa45438ace3"},"schema_version":"1.0"},"canonical_sha256":"79ad5af22d02b0ce4f9b8975bc3368591a8e1f85692d4276bb1b42b095a6bb21","source":{"kind":"arxiv","id":"0903.0812","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0903.0812","created_at":"2026-07-04T15:53:12Z"},{"alias_kind":"arxiv_version","alias_value":"0903.0812v1","created_at":"2026-07-04T15:53:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0903.0812","created_at":"2026-07-04T15:53:12Z"},{"alias_kind":"pith_short_12","alias_value":"PGWVV4RNAKYM","created_at":"2026-07-04T15:53:12Z"},{"alias_kind":"pith_short_16","alias_value":"PGWVV4RNAKYM4T43","created_at":"2026-07-04T15:53:12Z"},{"alias_kind":"pith_short_8","alias_value":"PGWVV4RN","created_at":"2026-07-04T15:53:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:PGWVV4RNAKYM4T43RF23YM3ILE","target":"record","payload":{"canonical_record":{"source":{"id":"0903.0812","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-03-04T16:48:24Z","cross_cats_sorted":[],"title_canon_sha256":"a3ad3f7e47b3d3130b6b29be81d1ae2b59b0903f77aac3d58de0828a6c5c19fd","abstract_canon_sha256":"7b845d59aff0ef4cfd1bfbddff5733b82b9f671aadda86543076daa45438ace3"},"schema_version":"1.0"},"canonical_sha256":"79ad5af22d02b0ce4f9b8975bc3368591a8e1f85692d4276bb1b42b095a6bb21","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:53:12.100592Z","signature_b64":"D47CdjAZHsM3bYTdRWTg4uqgj49t+qlCBPWOWNsucGJmBGdpMtjnBQl6iPCeH5i5KHA30ZCDi6peS4puw3IOAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"79ad5af22d02b0ce4f9b8975bc3368591a8e1f85692d4276bb1b42b095a6bb21","last_reissued_at":"2026-07-04T15:53:12.100175Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:53:12.100175Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0903.0812","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":"2026-07-04T15:53:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PJv46NyjSJ36S+PAgVvsLPjpz/wKjlKDvF1mFAW7ShS3RcSr4lvQcsaPy07elzi/AbWaDOx3YtcXhs4Mn7U4AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T13:53:45.890185Z"},"content_sha256":"2947803411e1a33cc5368f5b0c59ae6b16614ec3f7b14357cc40d7d9108d930c","schema_version":"1.0","event_id":"sha256:2947803411e1a33cc5368f5b0c59ae6b16614ec3f7b14357cc40d7d9108d930c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:PGWVV4RNAKYM4T43RF23YM3ILE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Parsec Scale Properties of Brightest Cluster Galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"E. Liuzzo, G. Giovannini, M. Giroletti","submitted_at":"2009-03-04T16:48:24Z","abstract_excerpt":"We present new VLBI observations of a complete sample of Brigthest Cluster Galaxies (BCGs) in nearby Abell Clusters. These data show a possible difference between BCGs in cool core clusters (two-sided parsec scale jets) and in non cool core clusters (one-sided parsec scale jet). We suggest that this difference could be due to the jet interaction with the surrounding medium. More data are necessary to discuss whether parsec-scale properties of BCGs are influenced by their peculiar morphology and position at the center of rich galaxy clusters."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0903.0812","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/0903.0812/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":"2026-07-04T15:53:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QYK0Y0yrwMLk+i7tit1goy1VOyLtOQ59YN9aiH9Jrca66333VxsLawbDd8BIsetJsE+jEcHx3F3c7pqdNW4lCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T13:53:45.890787Z"},"content_sha256":"5949dbecafb9e5411271541695d8b700b043a81d1ec04d4268f70a2d86901f9a","schema_version":"1.0","event_id":"sha256:5949dbecafb9e5411271541695d8b700b043a81d1ec04d4268f70a2d86901f9a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PGWVV4RNAKYM4T43RF23YM3ILE/bundle.json","state_url":"https://pith.science/pith/PGWVV4RNAKYM4T43RF23YM3ILE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PGWVV4RNAKYM4T43RF23YM3ILE/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":"2026-08-06T13:53:45Z","links":{"resolver":"https://pith.science/pith/PGWVV4RNAKYM4T43RF23YM3ILE","bundle":"https://pith.science/pith/PGWVV4RNAKYM4T43RF23YM3ILE/bundle.json","state":"https://pith.science/pith/PGWVV4RNAKYM4T43RF23YM3ILE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PGWVV4RNAKYM4T43RF23YM3ILE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:PGWVV4RNAKYM4T43RF23YM3ILE","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":"7b845d59aff0ef4cfd1bfbddff5733b82b9f671aadda86543076daa45438ace3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-03-04T16:48:24Z","title_canon_sha256":"a3ad3f7e47b3d3130b6b29be81d1ae2b59b0903f77aac3d58de0828a6c5c19fd"},"schema_version":"1.0","source":{"id":"0903.0812","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0903.0812","created_at":"2026-07-04T15:53:12Z"},{"alias_kind":"arxiv_version","alias_value":"0903.0812v1","created_at":"2026-07-04T15:53:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0903.0812","created_at":"2026-07-04T15:53:12Z"},{"alias_kind":"pith_short_12","alias_value":"PGWVV4RNAKYM","created_at":"2026-07-04T15:53:12Z"},{"alias_kind":"pith_short_16","alias_value":"PGWVV4RNAKYM4T43","created_at":"2026-07-04T15:53:12Z"},{"alias_kind":"pith_short_8","alias_value":"PGWVV4RN","created_at":"2026-07-04T15:53:12Z"}],"graph_snapshots":[{"event_id":"sha256:5949dbecafb9e5411271541695d8b700b043a81d1ec04d4268f70a2d86901f9a","target":"graph","created_at":"2026-07-04T15:53:12Z","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/0903.0812/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present new VLBI observations of a complete sample of Brigthest Cluster Galaxies (BCGs) in nearby Abell Clusters. These data show a possible difference between BCGs in cool core clusters (two-sided parsec scale jets) and in non cool core clusters (one-sided parsec scale jet). We suggest that this difference could be due to the jet interaction with the surrounding medium. More data are necessary to discuss whether parsec-scale properties of BCGs are influenced by their peculiar morphology and position at the center of rich galaxy clusters.","authors_text":"E. Liuzzo, G. Giovannini, M. Giroletti","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-03-04T16:48:24Z","title":"Parsec Scale Properties of Brightest Cluster Galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0903.0812","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":"sha256:2947803411e1a33cc5368f5b0c59ae6b16614ec3f7b14357cc40d7d9108d930c","target":"record","created_at":"2026-07-04T15:53:12Z","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":"7b845d59aff0ef4cfd1bfbddff5733b82b9f671aadda86543076daa45438ace3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-03-04T16:48:24Z","title_canon_sha256":"a3ad3f7e47b3d3130b6b29be81d1ae2b59b0903f77aac3d58de0828a6c5c19fd"},"schema_version":"1.0","source":{"id":"0903.0812","kind":"arxiv","version":1}},"canonical_sha256":"79ad5af22d02b0ce4f9b8975bc3368591a8e1f85692d4276bb1b42b095a6bb21","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"79ad5af22d02b0ce4f9b8975bc3368591a8e1f85692d4276bb1b42b095a6bb21","first_computed_at":"2026-07-04T15:53:12.100175Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:53:12.100175Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"D47CdjAZHsM3bYTdRWTg4uqgj49t+qlCBPWOWNsucGJmBGdpMtjnBQl6iPCeH5i5KHA30ZCDi6peS4puw3IOAg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:53:12.100592Z","signed_message":"canonical_sha256_bytes"},"source_id":"0903.0812","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2947803411e1a33cc5368f5b0c59ae6b16614ec3f7b14357cc40d7d9108d930c","sha256:5949dbecafb9e5411271541695d8b700b043a81d1ec04d4268f70a2d86901f9a"],"state_sha256":"3995ebf4a4406712be534952db6eb98bc734b8fe68a72fcfaf812956adf02e1e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xq5iJ+5uw52NM5hRvZs0VG9TUyP0Oke29r3kgePVQ9MkxgV4pu+ibtl+VIv6JytOCItziiks7mt0G+EuGk7MAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T13:53:45.896205Z","bundle_sha256":"5ee0c8239be7697eb6919fbd959d6c32a1c81db6bb070f3d9b9df2a66c491f7d"}}