{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:W3VAHUKSITW7LHRWZXB4GXXEVZ","short_pith_number":"pith:W3VAHUKS","canonical_record":{"source":{"id":"1109.4055","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-09-19T15:07:31Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"a12c64728611dce1ecf4eabb6d1be95cb7af3c564a0d348419d458aea5056e25","abstract_canon_sha256":"3bf4f2c372a78433c400e27c97511eed52db143fbf3c490531686bd339e3eea4"},"schema_version":"1.0"},"canonical_sha256":"b6ea03d15244edf59e36cdc3c35ee4ae5b092fcee69248011811aec992460599","source":{"kind":"arxiv","id":"1109.4055","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.4055","created_at":"2026-05-18T02:00:29Z"},{"alias_kind":"arxiv_version","alias_value":"1109.4055v1","created_at":"2026-05-18T02:00:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.4055","created_at":"2026-05-18T02:00:29Z"},{"alias_kind":"pith_short_12","alias_value":"W3VAHUKSITW7","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"W3VAHUKSITW7LHRW","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"W3VAHUKS","created_at":"2026-05-18T12:26:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:W3VAHUKSITW7LHRWZXB4GXXEVZ","target":"record","payload":{"canonical_record":{"source":{"id":"1109.4055","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-09-19T15:07:31Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"a12c64728611dce1ecf4eabb6d1be95cb7af3c564a0d348419d458aea5056e25","abstract_canon_sha256":"3bf4f2c372a78433c400e27c97511eed52db143fbf3c490531686bd339e3eea4"},"schema_version":"1.0"},"canonical_sha256":"b6ea03d15244edf59e36cdc3c35ee4ae5b092fcee69248011811aec992460599","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:29.297236Z","signature_b64":"jVz0xiJHUomi2VcSPZU/Rq6pgbyKXUFWS29RiZg1RgUvRFq28MEs4UhqjrQITUcwwWZmS/Fq5FMcBzyprlxKCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b6ea03d15244edf59e36cdc3c35ee4ae5b092fcee69248011811aec992460599","last_reissued_at":"2026-05-18T02:00:29.296355Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:29.296355Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.4055","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":"2026-05-18T02:00:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0bcHTg8fKIIbS6FelsAe5zfrH2J0jd4wPI1cBbLg9oFSQjwLQcEbWJ2H9S0neOR/5KJ4/QN3ZK4HbeDSq5NEBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T20:21:12.258420Z"},"content_sha256":"07efe6e2ddc6227aa407b8f635c9980a3f71bdfed5e770e417eece9c26db7214","schema_version":"1.0","event_id":"sha256:07efe6e2ddc6227aa407b8f635c9980a3f71bdfed5e770e417eece9c26db7214"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:W3VAHUKSITW7LHRWZXB4GXXEVZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetic fields in the Large-Scale Structure of the Universe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.CO","authors_text":"Canada), Christos G. Tsagas (Aristotle University, Dominik R. G. Schleicher (Georg-August-Universitat, Dongsu Ryu (Chungnam National University, Germany), Greece), Korea), Lawrence M. Widrow (Queen's University, Rudolf A. Treumann (ISSI, Switzerland)","submitted_at":"2011-09-19T15:07:31Z","abstract_excerpt":"Magnetic fields appear to be ubiquitous in astrophysical environments. Their existence in the intracluster medium is established through observations of synchrotron emission and Faraday rotation. On the other hand, the nature of magnetic fields outside of clusters, where observations are scarce and controversial, remains largely unknown. In this chapter, we review recent developments in our understanding of the nature and origin of intergalactic magnetic fields, and in particular, intercluster fields. A plausible scenario for the origin of galactic and intergalactic magnetic fields is for seed"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.4055","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":"2026-05-18T02:00:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OJ+W8suU57fDhEGJFu1gAgyp2ICLWDeLmyNd4K4Ys2He3ZkWVZ6GyviTEOLE05nm47j0lPXxAHNLMvZrWP/cDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T20:21:12.258781Z"},"content_sha256":"506937accb100237990a92b0adb97c37c8965248e6b150e44946910d87cbcd8f","schema_version":"1.0","event_id":"sha256:506937accb100237990a92b0adb97c37c8965248e6b150e44946910d87cbcd8f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W3VAHUKSITW7LHRWZXB4GXXEVZ/bundle.json","state_url":"https://pith.science/pith/W3VAHUKSITW7LHRWZXB4GXXEVZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W3VAHUKSITW7LHRWZXB4GXXEVZ/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":"2026-06-01T20:21:12Z","links":{"resolver":"https://pith.science/pith/W3VAHUKSITW7LHRWZXB4GXXEVZ","bundle":"https://pith.science/pith/W3VAHUKSITW7LHRWZXB4GXXEVZ/bundle.json","state":"https://pith.science/pith/W3VAHUKSITW7LHRWZXB4GXXEVZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W3VAHUKSITW7LHRWZXB4GXXEVZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:W3VAHUKSITW7LHRWZXB4GXXEVZ","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":"3bf4f2c372a78433c400e27c97511eed52db143fbf3c490531686bd339e3eea4","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-09-19T15:07:31Z","title_canon_sha256":"a12c64728611dce1ecf4eabb6d1be95cb7af3c564a0d348419d458aea5056e25"},"schema_version":"1.0","source":{"id":"1109.4055","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.4055","created_at":"2026-05-18T02:00:29Z"},{"alias_kind":"arxiv_version","alias_value":"1109.4055v1","created_at":"2026-05-18T02:00:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.4055","created_at":"2026-05-18T02:00:29Z"},{"alias_kind":"pith_short_12","alias_value":"W3VAHUKSITW7","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"W3VAHUKSITW7LHRW","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"W3VAHUKS","created_at":"2026-05-18T12:26:44Z"}],"graph_snapshots":[{"event_id":"sha256:506937accb100237990a92b0adb97c37c8965248e6b150e44946910d87cbcd8f","target":"graph","created_at":"2026-05-18T02:00:29Z","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":"Magnetic fields appear to be ubiquitous in astrophysical environments. Their existence in the intracluster medium is established through observations of synchrotron emission and Faraday rotation. On the other hand, the nature of magnetic fields outside of clusters, where observations are scarce and controversial, remains largely unknown. In this chapter, we review recent developments in our understanding of the nature and origin of intergalactic magnetic fields, and in particular, intercluster fields. A plausible scenario for the origin of galactic and intergalactic magnetic fields is for seed","authors_text":"Canada), Christos G. Tsagas (Aristotle University, Dominik R. G. Schleicher (Georg-August-Universitat, Dongsu Ryu (Chungnam National University, Germany), Greece), Korea), Lawrence M. Widrow (Queen's University, Rudolf A. Treumann (ISSI, Switzerland)","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-09-19T15:07:31Z","title":"Magnetic fields in the Large-Scale Structure of the Universe"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.4055","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":"sha256:07efe6e2ddc6227aa407b8f635c9980a3f71bdfed5e770e417eece9c26db7214","target":"record","created_at":"2026-05-18T02:00:29Z","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":"3bf4f2c372a78433c400e27c97511eed52db143fbf3c490531686bd339e3eea4","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-09-19T15:07:31Z","title_canon_sha256":"a12c64728611dce1ecf4eabb6d1be95cb7af3c564a0d348419d458aea5056e25"},"schema_version":"1.0","source":{"id":"1109.4055","kind":"arxiv","version":1}},"canonical_sha256":"b6ea03d15244edf59e36cdc3c35ee4ae5b092fcee69248011811aec992460599","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b6ea03d15244edf59e36cdc3c35ee4ae5b092fcee69248011811aec992460599","first_computed_at":"2026-05-18T02:00:29.296355Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:29.296355Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jVz0xiJHUomi2VcSPZU/Rq6pgbyKXUFWS29RiZg1RgUvRFq28MEs4UhqjrQITUcwwWZmS/Fq5FMcBzyprlxKCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:29.297236Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.4055","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:07efe6e2ddc6227aa407b8f635c9980a3f71bdfed5e770e417eece9c26db7214","sha256:506937accb100237990a92b0adb97c37c8965248e6b150e44946910d87cbcd8f"],"state_sha256":"8b2312ec727d8ff4810637318a16e62a21dc6c0ade4ebc368cf0f4af2522a730"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zqTkYYzW18meC2hwEbV3VcRsWxE1uMdRgWImDD/oQCP2CXtq25higlXgc3iura82XbYZn4hWg70puzu3FGMRAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T20:21:12.260854Z","bundle_sha256":"5f7ea1f3862d41b23304c1df5b13b97d9af563a338431294af5743b8cca49ba5"}}