{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:SLENBVTUN5A573ZEUXZPIAUML3","short_pith_number":"pith:SLENBVTU","canonical_record":{"source":{"id":"1703.08688","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-03-25T13:03:17Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"8fd03bb3e87cea6102f38afa1d55498626cbefe92722563b1227be10d9548eb7","abstract_canon_sha256":"fa240e13a6c9dae0e20d4760d2cee4172df707ebcfe6710a8410fc1ec9833cc9"},"schema_version":"1.0"},"canonical_sha256":"92c8d0d6746f41dfef24a5f2f4028c5ef1325b68a204bbea7e6179c2c1a6edbf","source":{"kind":"arxiv","id":"1703.08688","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.08688","created_at":"2026-05-18T00:40:06Z"},{"alias_kind":"arxiv_version","alias_value":"1703.08688v1","created_at":"2026-05-18T00:40:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.08688","created_at":"2026-05-18T00:40:06Z"},{"alias_kind":"pith_short_12","alias_value":"SLENBVTUN5A5","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"SLENBVTUN5A573ZE","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"SLENBVTU","created_at":"2026-05-18T12:31:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:SLENBVTUN5A573ZEUXZPIAUML3","target":"record","payload":{"canonical_record":{"source":{"id":"1703.08688","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-03-25T13:03:17Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"8fd03bb3e87cea6102f38afa1d55498626cbefe92722563b1227be10d9548eb7","abstract_canon_sha256":"fa240e13a6c9dae0e20d4760d2cee4172df707ebcfe6710a8410fc1ec9833cc9"},"schema_version":"1.0"},"canonical_sha256":"92c8d0d6746f41dfef24a5f2f4028c5ef1325b68a204bbea7e6179c2c1a6edbf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:40:06.657533Z","signature_b64":"DDPnG4cTMp1NVDDqlvaGCtB8r5EGFo7ZjIF0C131rT6wzsSBEC+eH2MNhwzeknKB70OrJdwyQvL8Q8RPqTpWBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"92c8d0d6746f41dfef24a5f2f4028c5ef1325b68a204bbea7e6179c2c1a6edbf","last_reissued_at":"2026-05-18T00:40:06.656875Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:40:06.656875Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1703.08688","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":"2026-05-18T00:40:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hY1r0NVtC//rtCi2wLNzFK0wdAdVhh0Rz9v+tOBQzDW/egbIaCrI/OneapvIvUjCHqkQ3eQYaPYggVEcmhgAAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T07:50:32.161938Z"},"content_sha256":"66cb12a436c282ddf4915e4390f24877a381383082c53fec247df0aa2fc108ba","schema_version":"1.0","event_id":"sha256:66cb12a436c282ddf4915e4390f24877a381383082c53fec247df0aa2fc108ba"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:SLENBVTUN5A573ZEUXZPIAUML3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Sardinia Radio Telescope observations of Abell 194 - the intra-cluster magnetic field power spectrum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"A. Bonafede, A. Melis, C. Ferrari, D. Eckert, E. Carretti, E. Orru', F. De Gasperin, F. Gastaldello, F. Govoni, F. Loi, F. Vazza, G. Bernardi, G.B Taylor, G. Giovannini, G. Valente, H. Junklewitz, L. Feretti, L. Gregorini, M. Brienza, M. Girardi, M. Johnston-Hollitt, M. Murgia, M. Rossetti, P. Parma, R. Concu, R. Paladino, R. Perley, S. Colafrancesco, S. Poppi, T.A. Ensslin, T.E. Clarke, V. Vacca, W. Boschin","submitted_at":"2017-03-25T13:03:17Z","abstract_excerpt":"We study the intra-cluster magnetic field in the poor galaxy cluster Abell 194 by complementing radio data, at different frequencies, with data in the optical and X-ray bands. We analyze new total intensity and polarization observations of Abell 194 obtained with the Sardinia Radio Telescope (SRT). We use the SRT data in combination with archival Very Large Array observations to derive both the spectral aging and Rotation Measure (RM) images of the radio galaxies 3C40A and 3C40B embedded in Abell 194. The optical analysis indicates that Abell 194 does not show a major and recent cluster merger"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.08688","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":"2026-05-18T00:40:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bXhOl3dKtkGOJPA2X82pfdzij2+nkidz/HEIAjIC2c1NBvSPiAgmzkZ9+nfMrGmBBzifLzUHOgHcaIHchTg/CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T07:50:32.162612Z"},"content_sha256":"9d19fe2faa5588aa9562fd563992d6c10777f4b1598a92bc86d8dd2a098c70a0","schema_version":"1.0","event_id":"sha256:9d19fe2faa5588aa9562fd563992d6c10777f4b1598a92bc86d8dd2a098c70a0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SLENBVTUN5A573ZEUXZPIAUML3/bundle.json","state_url":"https://pith.science/pith/SLENBVTUN5A573ZEUXZPIAUML3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SLENBVTUN5A573ZEUXZPIAUML3/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":"2026-05-27T07:50:32Z","links":{"resolver":"https://pith.science/pith/SLENBVTUN5A573ZEUXZPIAUML3","bundle":"https://pith.science/pith/SLENBVTUN5A573ZEUXZPIAUML3/bundle.json","state":"https://pith.science/pith/SLENBVTUN5A573ZEUXZPIAUML3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SLENBVTUN5A573ZEUXZPIAUML3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:SLENBVTUN5A573ZEUXZPIAUML3","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":"fa240e13a6c9dae0e20d4760d2cee4172df707ebcfe6710a8410fc1ec9833cc9","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-03-25T13:03:17Z","title_canon_sha256":"8fd03bb3e87cea6102f38afa1d55498626cbefe92722563b1227be10d9548eb7"},"schema_version":"1.0","source":{"id":"1703.08688","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.08688","created_at":"2026-05-18T00:40:06Z"},{"alias_kind":"arxiv_version","alias_value":"1703.08688v1","created_at":"2026-05-18T00:40:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.08688","created_at":"2026-05-18T00:40:06Z"},{"alias_kind":"pith_short_12","alias_value":"SLENBVTUN5A5","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"SLENBVTUN5A573ZE","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"SLENBVTU","created_at":"2026-05-18T12:31:43Z"}],"graph_snapshots":[{"event_id":"sha256:9d19fe2faa5588aa9562fd563992d6c10777f4b1598a92bc86d8dd2a098c70a0","target":"graph","created_at":"2026-05-18T00:40:06Z","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 study the intra-cluster magnetic field in the poor galaxy cluster Abell 194 by complementing radio data, at different frequencies, with data in the optical and X-ray bands. We analyze new total intensity and polarization observations of Abell 194 obtained with the Sardinia Radio Telescope (SRT). We use the SRT data in combination with archival Very Large Array observations to derive both the spectral aging and Rotation Measure (RM) images of the radio galaxies 3C40A and 3C40B embedded in Abell 194. The optical analysis indicates that Abell 194 does not show a major and recent cluster merger","authors_text":"A. Bonafede, A. Melis, C. Ferrari, D. Eckert, E. Carretti, E. Orru', F. De Gasperin, F. Gastaldello, F. Govoni, F. Loi, F. Vazza, G. Bernardi, G.B Taylor, G. Giovannini, G. Valente, H. Junklewitz, L. Feretti, L. Gregorini, M. Brienza, M. Girardi, M. Johnston-Hollitt, M. Murgia, M. Rossetti, P. Parma, R. Concu, R. Paladino, R. Perley, S. Colafrancesco, S. Poppi, T.A. Ensslin, T.E. Clarke, V. Vacca, W. Boschin","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-03-25T13:03:17Z","title":"Sardinia Radio Telescope observations of Abell 194 - the intra-cluster magnetic field power spectrum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.08688","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":"sha256:66cb12a436c282ddf4915e4390f24877a381383082c53fec247df0aa2fc108ba","target":"record","created_at":"2026-05-18T00:40:06Z","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":"fa240e13a6c9dae0e20d4760d2cee4172df707ebcfe6710a8410fc1ec9833cc9","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-03-25T13:03:17Z","title_canon_sha256":"8fd03bb3e87cea6102f38afa1d55498626cbefe92722563b1227be10d9548eb7"},"schema_version":"1.0","source":{"id":"1703.08688","kind":"arxiv","version":1}},"canonical_sha256":"92c8d0d6746f41dfef24a5f2f4028c5ef1325b68a204bbea7e6179c2c1a6edbf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"92c8d0d6746f41dfef24a5f2f4028c5ef1325b68a204bbea7e6179c2c1a6edbf","first_computed_at":"2026-05-18T00:40:06.656875Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:40:06.656875Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DDPnG4cTMp1NVDDqlvaGCtB8r5EGFo7ZjIF0C131rT6wzsSBEC+eH2MNhwzeknKB70OrJdwyQvL8Q8RPqTpWBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:40:06.657533Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.08688","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66cb12a436c282ddf4915e4390f24877a381383082c53fec247df0aa2fc108ba","sha256:9d19fe2faa5588aa9562fd563992d6c10777f4b1598a92bc86d8dd2a098c70a0"],"state_sha256":"4014c46aa2225d881a6cbcdd9895558da1ecbabebad43f5f448b02c961cfc54d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TtNMBukqVO+9WRYwez2driZ3v/mmc9gdqDEppD7bM3XNDCMEnWcJhymZnpiutjp5YQg9mhfkLu0i02eSKZDACw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T07:50:32.165898Z","bundle_sha256":"f144924ef1908d14268e4c11fb211aec13ee133fa0be421783fdfc5a962068aa"}}