{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:KVZMHGXEFYV3Z57ODRMPH7FQVZ","short_pith_number":"pith:KVZMHGXE","canonical_record":{"source":{"id":"astro-ph/9902019","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-02-01T16:26:04Z","cross_cats_sorted":[],"title_canon_sha256":"9c90d2b5a9e95445ff8e7620b148b0d72a5cd5d6671f6620f0dae2bdae48c398","abstract_canon_sha256":"c76b5e9886d92b9a268849234f3c8f37bcadcf109d929e5e39b1e03436685585"},"schema_version":"1.0"},"canonical_sha256":"5572c39ae42e2bbcf7ee1c58f3fcb0ae6c6191cf608e2c175fdcd8e0ed384a8e","source":{"kind":"arxiv","id":"astro-ph/9902019","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9902019","created_at":"2026-07-04T14:16:32Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9902019v1","created_at":"2026-07-04T14:16:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9902019","created_at":"2026-07-04T14:16:32Z"},{"alias_kind":"pith_short_12","alias_value":"KVZMHGXEFYV3","created_at":"2026-07-04T14:16:32Z"},{"alias_kind":"pith_short_16","alias_value":"KVZMHGXEFYV3Z57O","created_at":"2026-07-04T14:16:32Z"},{"alias_kind":"pith_short_8","alias_value":"KVZMHGXE","created_at":"2026-07-04T14:16:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:KVZMHGXEFYV3Z57ODRMPH7FQVZ","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9902019","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-02-01T16:26:04Z","cross_cats_sorted":[],"title_canon_sha256":"9c90d2b5a9e95445ff8e7620b148b0d72a5cd5d6671f6620f0dae2bdae48c398","abstract_canon_sha256":"c76b5e9886d92b9a268849234f3c8f37bcadcf109d929e5e39b1e03436685585"},"schema_version":"1.0"},"canonical_sha256":"5572c39ae42e2bbcf7ee1c58f3fcb0ae6c6191cf608e2c175fdcd8e0ed384a8e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:16:32.043956Z","signature_b64":"PwKO1OdgfM/jaPsbRzpj9v7r0fhkJ8DvaUV8WQsK5fuGGNZz6TdTHdFuFjjOlEK7/0qHCf77pO6PwMbH8UJRCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5572c39ae42e2bbcf7ee1c58f3fcb0ae6c6191cf608e2c175fdcd8e0ed384a8e","last_reissued_at":"2026-07-04T14:16:32.043544Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:16:32.043544Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9902019","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":"2026-07-04T14:16:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tkRPgtDgLZ9qlKZbctnlRZkwZRU1Mnl5GZTNdVHOhkdCDYsLzxEdpqd6tt0Sr4oLX76pKDutSV9e+5Z4D8xfDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T07:10:11.178243Z"},"content_sha256":"51bee70d0ecd66d36796c61141645dc12db6fa09d68c7b392ba541fed4519e98","schema_version":"1.0","event_id":"sha256:51bee70d0ecd66d36796c61141645dc12db6fa09d68c7b392ba541fed4519e98"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:KVZMHGXEFYV3Z57ODRMPH7FQVZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The radio galaxies and the magnetic field in Abell 119","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D. Dallacasa, F. Govoni, G. B. Taylor, G. Giovannini, L. Feretti, U. Klein","submitted_at":"1999-02-01T16:26:04Z","abstract_excerpt":"We present new, multiwavelength Very Large Array observations of the 3 radio galaxies in the cluster Abell 119: 0053-015, 0053-016 and 3C 29. The first two radio galaxies, which lie close to the cluster center, show a narrow-angle-tailed structure, with many twists in the tails. The third radio source is located at the cluster periphery, and shows an undistorted FR I morphology. All three radio sources are strongly polarized at the highest frequencies, and all three show both more depolarization and higher Faraday Rotation Measures with increasing proximity to the cluster center. We interpret "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9902019","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/9902019/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":"2026-07-04T14:16:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CDqzZL4TudxW1w0GEg9qdUqMiuIuuGnLgrJfj5pZZgkKIIj4CYbG3rREFHegZMXynyf/NFwZ5nY9RZMqO54gAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T07:10:11.178749Z"},"content_sha256":"74571c018e430648a8834c30758e11ce97e60557a7f592b4c567f916b4c0ddf3","schema_version":"1.0","event_id":"sha256:74571c018e430648a8834c30758e11ce97e60557a7f592b4c567f916b4c0ddf3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KVZMHGXEFYV3Z57ODRMPH7FQVZ/bundle.json","state_url":"https://pith.science/pith/KVZMHGXEFYV3Z57ODRMPH7FQVZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KVZMHGXEFYV3Z57ODRMPH7FQVZ/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":"2026-08-05T07:10:11Z","links":{"resolver":"https://pith.science/pith/KVZMHGXEFYV3Z57ODRMPH7FQVZ","bundle":"https://pith.science/pith/KVZMHGXEFYV3Z57ODRMPH7FQVZ/bundle.json","state":"https://pith.science/pith/KVZMHGXEFYV3Z57ODRMPH7FQVZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KVZMHGXEFYV3Z57ODRMPH7FQVZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:KVZMHGXEFYV3Z57ODRMPH7FQVZ","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":"c76b5e9886d92b9a268849234f3c8f37bcadcf109d929e5e39b1e03436685585","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-02-01T16:26:04Z","title_canon_sha256":"9c90d2b5a9e95445ff8e7620b148b0d72a5cd5d6671f6620f0dae2bdae48c398"},"schema_version":"1.0","source":{"id":"astro-ph/9902019","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9902019","created_at":"2026-07-04T14:16:32Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9902019v1","created_at":"2026-07-04T14:16:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9902019","created_at":"2026-07-04T14:16:32Z"},{"alias_kind":"pith_short_12","alias_value":"KVZMHGXEFYV3","created_at":"2026-07-04T14:16:32Z"},{"alias_kind":"pith_short_16","alias_value":"KVZMHGXEFYV3Z57O","created_at":"2026-07-04T14:16:32Z"},{"alias_kind":"pith_short_8","alias_value":"KVZMHGXE","created_at":"2026-07-04T14:16:32Z"}],"graph_snapshots":[{"event_id":"sha256:74571c018e430648a8834c30758e11ce97e60557a7f592b4c567f916b4c0ddf3","target":"graph","created_at":"2026-07-04T14:16:32Z","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/9902019/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present new, multiwavelength Very Large Array observations of the 3 radio galaxies in the cluster Abell 119: 0053-015, 0053-016 and 3C 29. The first two radio galaxies, which lie close to the cluster center, show a narrow-angle-tailed structure, with many twists in the tails. The third radio source is located at the cluster periphery, and shows an undistorted FR I morphology. All three radio sources are strongly polarized at the highest frequencies, and all three show both more depolarization and higher Faraday Rotation Measures with increasing proximity to the cluster center. We interpret ","authors_text":"D. Dallacasa, F. Govoni, G. B. Taylor, G. Giovannini, L. Feretti, U. Klein","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1999-02-01T16:26:04Z","title":"The radio galaxies and the magnetic field in Abell 119"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9902019","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":"sha256:51bee70d0ecd66d36796c61141645dc12db6fa09d68c7b392ba541fed4519e98","target":"record","created_at":"2026-07-04T14:16:32Z","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":"c76b5e9886d92b9a268849234f3c8f37bcadcf109d929e5e39b1e03436685585","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-02-01T16:26:04Z","title_canon_sha256":"9c90d2b5a9e95445ff8e7620b148b0d72a5cd5d6671f6620f0dae2bdae48c398"},"schema_version":"1.0","source":{"id":"astro-ph/9902019","kind":"arxiv","version":1}},"canonical_sha256":"5572c39ae42e2bbcf7ee1c58f3fcb0ae6c6191cf608e2c175fdcd8e0ed384a8e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5572c39ae42e2bbcf7ee1c58f3fcb0ae6c6191cf608e2c175fdcd8e0ed384a8e","first_computed_at":"2026-07-04T14:16:32.043544Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:16:32.043544Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PwKO1OdgfM/jaPsbRzpj9v7r0fhkJ8DvaUV8WQsK5fuGGNZz6TdTHdFuFjjOlEK7/0qHCf77pO6PwMbH8UJRCA==","signature_status":"signed_v1","signed_at":"2026-07-04T14:16:32.043956Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9902019","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:51bee70d0ecd66d36796c61141645dc12db6fa09d68c7b392ba541fed4519e98","sha256:74571c018e430648a8834c30758e11ce97e60557a7f592b4c567f916b4c0ddf3"],"state_sha256":"1beb082170ba8b1594e97bb8965f5f240715d6842d1560a6ee36c367988f9727"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zkTDEw+9yM7TyYz60bX8bwV9dEc5sdDop3XNRpdJEA/ZFrRjlrFTGhDn+CqbYveeZ/f8AqAIwloBoBaNaPg6DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T07:10:11.182366Z","bundle_sha256":"5501fc66f58dc7d741bcaf31ac5aa02998ccff60e5c7ad9fdda0198b598fb5f8"}}