{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:2MQI4HDLLMK4WUBDDZDBM5XCNS","short_pith_number":"pith:2MQI4HDL","canonical_record":{"source":{"id":"astro-ph/0206278","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-06-17T13:44:35Z","cross_cats_sorted":[],"title_canon_sha256":"2ac66eaf2c0df348c64855447a751d4fdc8f3d9b0d7cb61c52fcf5433665a62a","abstract_canon_sha256":"a019e6607ba88e5d3bb3e86bffcc039fc30a426102b46dc9ee6f9651867ba208"},"schema_version":"1.0"},"canonical_sha256":"d3208e1c6b5b15cb50231e461676e26cb4abb0eb9aaed34a1415d584968ecc28","source":{"kind":"arxiv","id":"astro-ph/0206278","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0206278","created_at":"2026-05-18T01:07:44Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0206278v2","created_at":"2026-05-18T01:07:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0206278","created_at":"2026-05-18T01:07:44Z"},{"alias_kind":"pith_short_12","alias_value":"2MQI4HDLLMK4","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"2MQI4HDLLMK4WUBD","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"2MQI4HDL","created_at":"2026-05-18T12:25:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:2MQI4HDLLMK4WUBDDZDBM5XCNS","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0206278","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-06-17T13:44:35Z","cross_cats_sorted":[],"title_canon_sha256":"2ac66eaf2c0df348c64855447a751d4fdc8f3d9b0d7cb61c52fcf5433665a62a","abstract_canon_sha256":"a019e6607ba88e5d3bb3e86bffcc039fc30a426102b46dc9ee6f9651867ba208"},"schema_version":"1.0"},"canonical_sha256":"d3208e1c6b5b15cb50231e461676e26cb4abb0eb9aaed34a1415d584968ecc28","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:44.704974Z","signature_b64":"F3COGm3geXoU4nO0fnT4Z0s2jrinK+8XcuLYBK+Abaoj4hI/yQ5aJ0L2HKGRgcNNe21rpdwdUofkyBAxKHd7DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d3208e1c6b5b15cb50231e461676e26cb4abb0eb9aaed34a1415d584968ecc28","last_reissued_at":"2026-05-18T01:07:44.704365Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:44.704365Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0206278","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:07:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HUq4K9Kw4P6SR3ETdOjYbRwYfeGTYiN2fzSM/dNiPOLTgkBeDwWacl2DwGmY3mZfYdtWDnqT2/4CVFocNggyBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:30:17.391873Z"},"content_sha256":"20ce116a317a0251c39357de166151379bab436d89d34cc4a919567e97f765a2","schema_version":"1.0","event_id":"sha256:20ce116a317a0251c39357de166151379bab436d89d34cc4a919567e97f765a2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:2MQI4HDLLMK4WUBDDZDBM5XCNS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing Intracluster Magnetic Fields with Cosmic Microwave Background Polarization","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Hiroshi Ohno, Klaus Dolag, Masahiro Takada, Matthias Bartelmann, Naoshi Sugiyama","submitted_at":"2002-06-17T13:44:35Z","abstract_excerpt":"Intracluster magnetic fields with $ \\sim \\mu G $ strength induce Faraday rotation on the cosmic microwave background\n (CMB) polarization. Measurements of this effect can potentially probe the detailed structure of intracluster magnetic fields across clusters, since the CMB polarization is a continuously varying field on the sky, in contrast to the conventional method restricted by the limited number of radio sources behind or inside a cluster. We here construct a method for extracting information on magnetic fields from measurements of the effect, combined with possible observations of the Sun"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0206278","kind":"arxiv","version":2},"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":"2026-05-18T01:07:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tjJuAml+2g/2apYV27LE3oaUVrvLYjm+qYJN64jHQtFYNkv5EgxpojYQeOPqLmpgzQUHgE7rKytYnV5NrYeoBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:30:17.392224Z"},"content_sha256":"c26eac4c4dfacb25067667fec595aacc196e680dd0be38e762da3d1f0e68275d","schema_version":"1.0","event_id":"sha256:c26eac4c4dfacb25067667fec595aacc196e680dd0be38e762da3d1f0e68275d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2MQI4HDLLMK4WUBDDZDBM5XCNS/bundle.json","state_url":"https://pith.science/pith/2MQI4HDLLMK4WUBDDZDBM5XCNS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2MQI4HDLLMK4WUBDDZDBM5XCNS/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":"2026-05-28T07:30:17Z","links":{"resolver":"https://pith.science/pith/2MQI4HDLLMK4WUBDDZDBM5XCNS","bundle":"https://pith.science/pith/2MQI4HDLLMK4WUBDDZDBM5XCNS/bundle.json","state":"https://pith.science/pith/2MQI4HDLLMK4WUBDDZDBM5XCNS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2MQI4HDLLMK4WUBDDZDBM5XCNS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:2MQI4HDLLMK4WUBDDZDBM5XCNS","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":"a019e6607ba88e5d3bb3e86bffcc039fc30a426102b46dc9ee6f9651867ba208","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-06-17T13:44:35Z","title_canon_sha256":"2ac66eaf2c0df348c64855447a751d4fdc8f3d9b0d7cb61c52fcf5433665a62a"},"schema_version":"1.0","source":{"id":"astro-ph/0206278","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0206278","created_at":"2026-05-18T01:07:44Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0206278v2","created_at":"2026-05-18T01:07:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0206278","created_at":"2026-05-18T01:07:44Z"},{"alias_kind":"pith_short_12","alias_value":"2MQI4HDLLMK4","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"2MQI4HDLLMK4WUBD","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"2MQI4HDL","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:c26eac4c4dfacb25067667fec595aacc196e680dd0be38e762da3d1f0e68275d","target":"graph","created_at":"2026-05-18T01:07:44Z","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":"Intracluster magnetic fields with $ \\sim \\mu G $ strength induce Faraday rotation on the cosmic microwave background\n (CMB) polarization. Measurements of this effect can potentially probe the detailed structure of intracluster magnetic fields across clusters, since the CMB polarization is a continuously varying field on the sky, in contrast to the conventional method restricted by the limited number of radio sources behind or inside a cluster. We here construct a method for extracting information on magnetic fields from measurements of the effect, combined with possible observations of the Sun","authors_text":"Hiroshi Ohno, Klaus Dolag, Masahiro Takada, Matthias Bartelmann, Naoshi Sugiyama","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2002-06-17T13:44:35Z","title":"Probing Intracluster Magnetic Fields with Cosmic Microwave Background Polarization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0206278","kind":"arxiv","version":2},"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":"sha256:20ce116a317a0251c39357de166151379bab436d89d34cc4a919567e97f765a2","target":"record","created_at":"2026-05-18T01:07:44Z","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":"a019e6607ba88e5d3bb3e86bffcc039fc30a426102b46dc9ee6f9651867ba208","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-06-17T13:44:35Z","title_canon_sha256":"2ac66eaf2c0df348c64855447a751d4fdc8f3d9b0d7cb61c52fcf5433665a62a"},"schema_version":"1.0","source":{"id":"astro-ph/0206278","kind":"arxiv","version":2}},"canonical_sha256":"d3208e1c6b5b15cb50231e461676e26cb4abb0eb9aaed34a1415d584968ecc28","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d3208e1c6b5b15cb50231e461676e26cb4abb0eb9aaed34a1415d584968ecc28","first_computed_at":"2026-05-18T01:07:44.704365Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:44.704365Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"F3COGm3geXoU4nO0fnT4Z0s2jrinK+8XcuLYBK+Abaoj4hI/yQ5aJ0L2HKGRgcNNe21rpdwdUofkyBAxKHd7DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:44.704974Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0206278","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:20ce116a317a0251c39357de166151379bab436d89d34cc4a919567e97f765a2","sha256:c26eac4c4dfacb25067667fec595aacc196e680dd0be38e762da3d1f0e68275d"],"state_sha256":"b9d711ae5f581b8694c19757549ff9fcbd85c46b9a9311d55f54c4e0a7e66ba6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uGKq0V288wvtUEJMbcwvt3zJv4FHte1Kj5j+hoX/WrXtT5lbzBrxCWIVZTwFmvxlTPmv/7OvN42YYOtRqN3YDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T07:30:17.394463Z","bundle_sha256":"f6656fa6dfc9c96e879cbf02f8604785ce978a7d7b716759b8f894f942b1b080"}}