{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:2E57GUPCQN3BQZHYVSHED2XO7D","short_pith_number":"pith:2E57GUPC","canonical_record":{"source":{"id":"astro-ph/0301522","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-01-27T16:30:05Z","cross_cats_sorted":[],"title_canon_sha256":"1e5cf535d07637cfbdd25cad4654dc09bf07eea035c5db885a11ed478be40e21","abstract_canon_sha256":"d9f4275ee71164910012a9eb0ac52200c9429c17d177f2771bf94ab621cd4b47"},"schema_version":"1.0"},"canonical_sha256":"d13bf351e283761864f8ac8e41eaeef8d055d3d716d8545fcd5c589103b84b6b","source":{"kind":"arxiv","id":"astro-ph/0301522","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0301522","created_at":"2026-05-18T04:21:42Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0301522v1","created_at":"2026-05-18T04:21:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0301522","created_at":"2026-05-18T04:21:42Z"},{"alias_kind":"pith_short_12","alias_value":"2E57GUPCQN3B","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"2E57GUPCQN3BQZHY","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"2E57GUPC","created_at":"2026-05-18T12:25:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:2E57GUPCQN3BQZHYVSHED2XO7D","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0301522","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-01-27T16:30:05Z","cross_cats_sorted":[],"title_canon_sha256":"1e5cf535d07637cfbdd25cad4654dc09bf07eea035c5db885a11ed478be40e21","abstract_canon_sha256":"d9f4275ee71164910012a9eb0ac52200c9429c17d177f2771bf94ab621cd4b47"},"schema_version":"1.0"},"canonical_sha256":"d13bf351e283761864f8ac8e41eaeef8d055d3d716d8545fcd5c589103b84b6b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:21:42.134394Z","signature_b64":"Fc7oXo4Kd4Pg+yI9JnX8I1izaM9F15hn39FDBGnizGULZOfPMw77TTP4bQHJR8w3KAqi5dJQ1uNBc4eoYbcFDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d13bf351e283761864f8ac8e41eaeef8d055d3d716d8545fcd5c589103b84b6b","last_reissued_at":"2026-05-18T04:21:42.133876Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:21:42.133876Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0301522","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":"2026-05-18T04:21:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GFGs+FiMEs8/fz1n+5wBLBEUp7dZIWZnO0z5mfWoZ7Bu5heFTTYxAXG1U/vdxAJOaXPGQS6QVY8/KZ2572WIBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T01:37:46.188350Z"},"content_sha256":"1400cd25488e8efdc708652fde7f872f5acd29cd6560e33c3600762f9516fa62","schema_version":"1.0","event_id":"sha256:1400cd25488e8efdc708652fde7f872f5acd29cd6560e33c3600762f9516fa62"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:2E57GUPCQN3BQZHYVSHED2XO7D","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The nature of the absorbing torus in compact Radio Galaxies","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"CfA), G. Risaliti (Arcetri, Haute-Provence), L. Woltjer (Arcetri, M. Salvati (Arcetri)","submitted_at":"2003-01-27T16:30:05Z","abstract_excerpt":"We present BeppoSAX observations of the two radio galaxies PKS 1934-63 and S5 1946+708. Strong Iron Kalpha lines are detected in both objects indicating that the two sources are absorbed by column densities higher than 10^24 cm^(-2).\n  Combining radio continuum, HI absorption and X-ray data we can constrain the physical state and the dimensions of the absorber. We find that the putative obscuring torus is molecular and located at a distance higher than 20 pc from the center in S5 1946+70. In PKS 1934-63 no radio nucleus has been observed. If this is due to free-free absorption a radius of only"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0301522","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":"2026-05-18T04:21:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BiA7NJXe+jeeRmDBSI4WOgN8BvG20LrXGX/IOkdZyVeEoU1sQV1128aJsR/NLuKYpXLB5cUbaOLsjWVOnpqLDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T01:37:46.189060Z"},"content_sha256":"3e7e668c03b91187df691c0c3ddee97fc6390afd6d4b6232c84a347a3b68d02a","schema_version":"1.0","event_id":"sha256:3e7e668c03b91187df691c0c3ddee97fc6390afd6d4b6232c84a347a3b68d02a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2E57GUPCQN3BQZHYVSHED2XO7D/bundle.json","state_url":"https://pith.science/pith/2E57GUPCQN3BQZHYVSHED2XO7D/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2E57GUPCQN3BQZHYVSHED2XO7D/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":"2026-05-30T01:37:46Z","links":{"resolver":"https://pith.science/pith/2E57GUPCQN3BQZHYVSHED2XO7D","bundle":"https://pith.science/pith/2E57GUPCQN3BQZHYVSHED2XO7D/bundle.json","state":"https://pith.science/pith/2E57GUPCQN3BQZHYVSHED2XO7D/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2E57GUPCQN3BQZHYVSHED2XO7D/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:2E57GUPCQN3BQZHYVSHED2XO7D","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":"d9f4275ee71164910012a9eb0ac52200c9429c17d177f2771bf94ab621cd4b47","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2003-01-27T16:30:05Z","title_canon_sha256":"1e5cf535d07637cfbdd25cad4654dc09bf07eea035c5db885a11ed478be40e21"},"schema_version":"1.0","source":{"id":"astro-ph/0301522","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0301522","created_at":"2026-05-18T04:21:42Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0301522v1","created_at":"2026-05-18T04:21:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0301522","created_at":"2026-05-18T04:21:42Z"},{"alias_kind":"pith_short_12","alias_value":"2E57GUPCQN3B","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"2E57GUPCQN3BQZHY","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"2E57GUPC","created_at":"2026-05-18T12:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:3e7e668c03b91187df691c0c3ddee97fc6390afd6d4b6232c84a347a3b68d02a","target":"graph","created_at":"2026-05-18T04:21:42Z","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 BeppoSAX observations of the two radio galaxies PKS 1934-63 and S5 1946+708. Strong Iron Kalpha lines are detected in both objects indicating that the two sources are absorbed by column densities higher than 10^24 cm^(-2).\n  Combining radio continuum, HI absorption and X-ray data we can constrain the physical state and the dimensions of the absorber. We find that the putative obscuring torus is molecular and located at a distance higher than 20 pc from the center in S5 1946+70. In PKS 1934-63 no radio nucleus has been observed. If this is due to free-free absorption a radius of only","authors_text":"CfA), G. Risaliti (Arcetri, Haute-Provence), L. Woltjer (Arcetri, M. Salvati (Arcetri)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2003-01-27T16:30:05Z","title":"The nature of the absorbing torus in compact Radio Galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0301522","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":"sha256:1400cd25488e8efdc708652fde7f872f5acd29cd6560e33c3600762f9516fa62","target":"record","created_at":"2026-05-18T04:21:42Z","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":"d9f4275ee71164910012a9eb0ac52200c9429c17d177f2771bf94ab621cd4b47","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2003-01-27T16:30:05Z","title_canon_sha256":"1e5cf535d07637cfbdd25cad4654dc09bf07eea035c5db885a11ed478be40e21"},"schema_version":"1.0","source":{"id":"astro-ph/0301522","kind":"arxiv","version":1}},"canonical_sha256":"d13bf351e283761864f8ac8e41eaeef8d055d3d716d8545fcd5c589103b84b6b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d13bf351e283761864f8ac8e41eaeef8d055d3d716d8545fcd5c589103b84b6b","first_computed_at":"2026-05-18T04:21:42.133876Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:21:42.133876Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Fc7oXo4Kd4Pg+yI9JnX8I1izaM9F15hn39FDBGnizGULZOfPMw77TTP4bQHJR8w3KAqi5dJQ1uNBc4eoYbcFDg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:21:42.134394Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0301522","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1400cd25488e8efdc708652fde7f872f5acd29cd6560e33c3600762f9516fa62","sha256:3e7e668c03b91187df691c0c3ddee97fc6390afd6d4b6232c84a347a3b68d02a"],"state_sha256":"9629b0a05aed81857b9f4f7aee04df5740004f3653e2a602a855dd3eba5c4f56"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S8JUzLF6OBhTewkOePFJaSaHhEtU4Ly2yLWDMTT/dviEZcMVwK0pPKQI/+MvNJaCSx3I50XY0HzXlg8zdrykCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T01:37:46.192892Z","bundle_sha256":"ea06919216fe253ee9b088e6694e66f871c95dc1230c88d711585152438223c6"}}