{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:53CG3M5YWFUYE5HTRWVGJ37Z2F","short_pith_number":"pith:53CG3M5Y","canonical_record":{"source":{"id":"1303.4825","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-03-20T03:16:25Z","cross_cats_sorted":[],"title_canon_sha256":"b18958f7aae58999156332f7106b9b418379fef722be93f0da8056ad8c2b9783","abstract_canon_sha256":"d9804a72620aef658970ad6c31720adb3ee5c454ea97bb71ff58a8d12190befc"},"schema_version":"1.0"},"canonical_sha256":"eec46db3b8b1698274f38daa64eff9d169184991218b0e4acef96ad0d4fe2ae9","source":{"kind":"arxiv","id":"1303.4825","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.4825","created_at":"2026-05-18T01:51:00Z"},{"alias_kind":"arxiv_version","alias_value":"1303.4825v1","created_at":"2026-05-18T01:51:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.4825","created_at":"2026-05-18T01:51:00Z"},{"alias_kind":"pith_short_12","alias_value":"53CG3M5YWFUY","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"53CG3M5YWFUYE5HT","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"53CG3M5Y","created_at":"2026-05-18T12:27:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:53CG3M5YWFUYE5HTRWVGJ37Z2F","target":"record","payload":{"canonical_record":{"source":{"id":"1303.4825","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-03-20T03:16:25Z","cross_cats_sorted":[],"title_canon_sha256":"b18958f7aae58999156332f7106b9b418379fef722be93f0da8056ad8c2b9783","abstract_canon_sha256":"d9804a72620aef658970ad6c31720adb3ee5c454ea97bb71ff58a8d12190befc"},"schema_version":"1.0"},"canonical_sha256":"eec46db3b8b1698274f38daa64eff9d169184991218b0e4acef96ad0d4fe2ae9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:51:00.449659Z","signature_b64":"ocEGWXLulpPTCV5hTGgyIzTjwzxAuSRWNyPMpCNq/D7nHMqrPBhs6u7vaLJlV73qbCQa0xVE+vz3naHuiJreCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eec46db3b8b1698274f38daa64eff9d169184991218b0e4acef96ad0d4fe2ae9","last_reissued_at":"2026-05-18T01:51:00.449242Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:51:00.449242Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1303.4825","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":"2026-05-18T01:51:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ENdHsW8xsVmnR9HNWNTrwj5B9ML1sgE5P0KAs1x40nY8c49gGC+pR3Ecs8fZZsYxn/io8H+9R6W7LKP+5QesAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T23:02:26.882522Z"},"content_sha256":"ec24cd089bfdd60a013da207bdf6ea16f7ebebfc0a9907c05cafc609d21236b6","schema_version":"1.0","event_id":"sha256:ec24cd089bfdd60a013da207bdf6ea16f7ebebfc0a9907c05cafc609d21236b6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:53CG3M5YWFUYE5HTRWVGJ37Z2F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Giant Radio Galaxies: I. Intergalactic Barometers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. R. Duffy, D. H. Jones, J. M. Malarecki, L. Saripalli, L. Staveley-Smith, M. Rioja, R. Subrahmanyan","submitted_at":"2013-03-20T03:16:25Z","abstract_excerpt":"We present new wideband radio observations with the Australia Telescope Compact Array of a sample of 12 giant radio galaxies. The radio observations are part of a larger radio-optical study aimed at relating the radio structures with the ambient medium on large scales. With projected linear sizes larger than 0.7 Mpc, these objects are ideal candidates for the study of the Warm-Hot Intergalactic Medium (WHIM). The sample includes sources with sizes spanning 0.8 to 3.2 Mpc and total powers of 1.2*10^24 to 4.0*10^26 W Hz^-1 at 2.1 GHz. Redshifts were limited to z<0.15 to permit spectroscopic obse"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.4825","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":""},"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":"2026-05-18T01:51:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ihnMqAE1dkhQVvDQa3qhnXlDDpwy88ukYfpWyz1D76fuRB55nqBv9WSpqnsjPXsruKSwcxdNmoKLpPtewrAoBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T23:02:26.883222Z"},"content_sha256":"8d520421dbace5a76eeb158ee97a8448bb34cd4f10c589aa9f10c742b540ea73","schema_version":"1.0","event_id":"sha256:8d520421dbace5a76eeb158ee97a8448bb34cd4f10c589aa9f10c742b540ea73"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/53CG3M5YWFUYE5HTRWVGJ37Z2F/bundle.json","state_url":"https://pith.science/pith/53CG3M5YWFUYE5HTRWVGJ37Z2F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/53CG3M5YWFUYE5HTRWVGJ37Z2F/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":"2026-05-23T23:02:26Z","links":{"resolver":"https://pith.science/pith/53CG3M5YWFUYE5HTRWVGJ37Z2F","bundle":"https://pith.science/pith/53CG3M5YWFUYE5HTRWVGJ37Z2F/bundle.json","state":"https://pith.science/pith/53CG3M5YWFUYE5HTRWVGJ37Z2F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/53CG3M5YWFUYE5HTRWVGJ37Z2F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:53CG3M5YWFUYE5HTRWVGJ37Z2F","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":"d9804a72620aef658970ad6c31720adb3ee5c454ea97bb71ff58a8d12190befc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-03-20T03:16:25Z","title_canon_sha256":"b18958f7aae58999156332f7106b9b418379fef722be93f0da8056ad8c2b9783"},"schema_version":"1.0","source":{"id":"1303.4825","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.4825","created_at":"2026-05-18T01:51:00Z"},{"alias_kind":"arxiv_version","alias_value":"1303.4825v1","created_at":"2026-05-18T01:51:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.4825","created_at":"2026-05-18T01:51:00Z"},{"alias_kind":"pith_short_12","alias_value":"53CG3M5YWFUY","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"53CG3M5YWFUYE5HT","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"53CG3M5Y","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:8d520421dbace5a76eeb158ee97a8448bb34cd4f10c589aa9f10c742b540ea73","target":"graph","created_at":"2026-05-18T01:51:00Z","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"},"paper":{"abstract_excerpt":"We present new wideband radio observations with the Australia Telescope Compact Array of a sample of 12 giant radio galaxies. The radio observations are part of a larger radio-optical study aimed at relating the radio structures with the ambient medium on large scales. With projected linear sizes larger than 0.7 Mpc, these objects are ideal candidates for the study of the Warm-Hot Intergalactic Medium (WHIM). The sample includes sources with sizes spanning 0.8 to 3.2 Mpc and total powers of 1.2*10^24 to 4.0*10^26 W Hz^-1 at 2.1 GHz. Redshifts were limited to z<0.15 to permit spectroscopic obse","authors_text":"A. R. Duffy, D. H. Jones, J. M. Malarecki, L. Saripalli, L. Staveley-Smith, M. Rioja, R. Subrahmanyan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-03-20T03:16:25Z","title":"Giant Radio Galaxies: I. Intergalactic Barometers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.4825","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:ec24cd089bfdd60a013da207bdf6ea16f7ebebfc0a9907c05cafc609d21236b6","target":"record","created_at":"2026-05-18T01:51:00Z","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":"d9804a72620aef658970ad6c31720adb3ee5c454ea97bb71ff58a8d12190befc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-03-20T03:16:25Z","title_canon_sha256":"b18958f7aae58999156332f7106b9b418379fef722be93f0da8056ad8c2b9783"},"schema_version":"1.0","source":{"id":"1303.4825","kind":"arxiv","version":1}},"canonical_sha256":"eec46db3b8b1698274f38daa64eff9d169184991218b0e4acef96ad0d4fe2ae9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eec46db3b8b1698274f38daa64eff9d169184991218b0e4acef96ad0d4fe2ae9","first_computed_at":"2026-05-18T01:51:00.449242Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:51:00.449242Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ocEGWXLulpPTCV5hTGgyIzTjwzxAuSRWNyPMpCNq/D7nHMqrPBhs6u7vaLJlV73qbCQa0xVE+vz3naHuiJreCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:51:00.449659Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.4825","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ec24cd089bfdd60a013da207bdf6ea16f7ebebfc0a9907c05cafc609d21236b6","sha256:8d520421dbace5a76eeb158ee97a8448bb34cd4f10c589aa9f10c742b540ea73"],"state_sha256":"3722f769802a195d381a755738fd077320f5e6c96a5b97be27498b6d9f451178"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qoeacNmZA2iNWAxE5Fwi8Xr/QwzEg9wck/YuZq9NlFfsNoqb0iguGzxWV6l27stmcyi+Klr38pYaxPaXACDcBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-23T23:02:26.886709Z","bundle_sha256":"07e981fc25e58e51dab80335a90eb9ae3aa6174c66e2963393c8c26d02a4670e"}}