{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:EIPWF5OSEDWPRXQY2YI2TPKMR3","short_pith_number":"pith:EIPWF5OS","canonical_record":{"source":{"id":"2010.03383","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-10-07T12:52:23Z","cross_cats_sorted":["hep-ph","hep-th"],"title_canon_sha256":"c8b03b2da965a54c1b9a2d121ff4fce6c9c64731ec327e740e2f9e2571fd94f6","abstract_canon_sha256":"b3e7d6aa58e4d53d74e123e724b4af1e4e689b1208be25a55f6e08870dd9f964"},"schema_version":"1.0"},"canonical_sha256":"221f62f5d220ecf8de18d611a9bd4c8ee0f3a3c75028222c91de1413ae7133ac","source":{"kind":"arxiv","id":"2010.03383","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.03383","created_at":"2026-07-05T02:14:11Z"},{"alias_kind":"arxiv_version","alias_value":"2010.03383v2","created_at":"2026-07-05T02:14:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.03383","created_at":"2026-07-05T02:14:11Z"},{"alias_kind":"pith_short_12","alias_value":"EIPWF5OSEDWP","created_at":"2026-07-05T02:14:11Z"},{"alias_kind":"pith_short_16","alias_value":"EIPWF5OSEDWPRXQY","created_at":"2026-07-05T02:14:11Z"},{"alias_kind":"pith_short_8","alias_value":"EIPWF5OS","created_at":"2026-07-05T02:14:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:EIPWF5OSEDWPRXQY2YI2TPKMR3","target":"record","payload":{"canonical_record":{"source":{"id":"2010.03383","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-10-07T12:52:23Z","cross_cats_sorted":["hep-ph","hep-th"],"title_canon_sha256":"c8b03b2da965a54c1b9a2d121ff4fce6c9c64731ec327e740e2f9e2571fd94f6","abstract_canon_sha256":"b3e7d6aa58e4d53d74e123e724b4af1e4e689b1208be25a55f6e08870dd9f964"},"schema_version":"1.0"},"canonical_sha256":"221f62f5d220ecf8de18d611a9bd4c8ee0f3a3c75028222c91de1413ae7133ac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:14:11.435283Z","signature_b64":"Ik5jyo3U6l+10BHyacvEvr4jpB7qlC3/w5BEDg9n8qz7tmHFddoaxg6tS+PbcLquSLAJ5Yie8JsPptvueh/KAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"221f62f5d220ecf8de18d611a9bd4c8ee0f3a3c75028222c91de1413ae7133ac","last_reissued_at":"2026-07-05T02:14:11.434816Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:14:11.434816Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2010.03383","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":"2026-07-05T02:14:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JZ/7WF2iJ3dULr3P/H5GLiizBGOwM7KyX7E6iAMiox/8729EQte9YEGe/m3ajDBSwhEgeYe6QRLrR1Qfl9kdDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T12:06:53.209051Z"},"content_sha256":"6a6a90b871997acf9f9f6eb1b52708710018bcb83d749cee4f73907fa7db9432","schema_version":"1.0","event_id":"sha256:6a6a90b871997acf9f9f6eb1b52708710018bcb83d749cee4f73907fa7db9432"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:EIPWF5OSEDWPRXQY2YI2TPKMR3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observing primordial magnetic fields through Dark Matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","hep-th"],"primary_cat":"astro-ph.CO","authors_text":"Alexander Vikman, Federico R. Urban, Sabir Ramazanov","submitted_at":"2020-10-07T12:52:23Z","abstract_excerpt":"Primordial magnetic fields are often thought to be the early Universe seeds that have bloomed into what we observe today as galactic and extra-galactic magnetic fields. Owing to their minuscule strength, primordial magnetic fields are very hard to detect in cosmological and astrophysical observations. We show how this changes if a part of neutral Dark Matter has a magnetic susceptibility. In this way, by studying Dark Matter one can obtain information about the properties of primordial magnetic fields, even if the latter have a comoving amplitude $B_0 \\lesssim0.01~\\mbox{nG}$. In our model Dark"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.03383","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2010.03383/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":"2026-07-05T02:14:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Umhrj9SAUJAv/j42sfvxcCPxgYyQW1ti7jftBBIaV/RY5ZSqUf1/L+qaXuMk5LYMnUFGA8iutXznl6vkV8pWDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T12:06:53.209670Z"},"content_sha256":"e20cbabc6d23d72a3ad61f128b85d011c497c17ee4cbd7474880d769f1775c8c","schema_version":"1.0","event_id":"sha256:e20cbabc6d23d72a3ad61f128b85d011c497c17ee4cbd7474880d769f1775c8c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EIPWF5OSEDWPRXQY2YI2TPKMR3/bundle.json","state_url":"https://pith.science/pith/EIPWF5OSEDWPRXQY2YI2TPKMR3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EIPWF5OSEDWPRXQY2YI2TPKMR3/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":"2026-08-08T12:06:53Z","links":{"resolver":"https://pith.science/pith/EIPWF5OSEDWPRXQY2YI2TPKMR3","bundle":"https://pith.science/pith/EIPWF5OSEDWPRXQY2YI2TPKMR3/bundle.json","state":"https://pith.science/pith/EIPWF5OSEDWPRXQY2YI2TPKMR3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EIPWF5OSEDWPRXQY2YI2TPKMR3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:EIPWF5OSEDWPRXQY2YI2TPKMR3","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":"b3e7d6aa58e4d53d74e123e724b4af1e4e689b1208be25a55f6e08870dd9f964","cross_cats_sorted":["hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-10-07T12:52:23Z","title_canon_sha256":"c8b03b2da965a54c1b9a2d121ff4fce6c9c64731ec327e740e2f9e2571fd94f6"},"schema_version":"1.0","source":{"id":"2010.03383","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.03383","created_at":"2026-07-05T02:14:11Z"},{"alias_kind":"arxiv_version","alias_value":"2010.03383v2","created_at":"2026-07-05T02:14:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.03383","created_at":"2026-07-05T02:14:11Z"},{"alias_kind":"pith_short_12","alias_value":"EIPWF5OSEDWP","created_at":"2026-07-05T02:14:11Z"},{"alias_kind":"pith_short_16","alias_value":"EIPWF5OSEDWPRXQY","created_at":"2026-07-05T02:14:11Z"},{"alias_kind":"pith_short_8","alias_value":"EIPWF5OS","created_at":"2026-07-05T02:14:11Z"}],"graph_snapshots":[{"event_id":"sha256:e20cbabc6d23d72a3ad61f128b85d011c497c17ee4cbd7474880d769f1775c8c","target":"graph","created_at":"2026-07-05T02:14:11Z","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/2010.03383/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Primordial magnetic fields are often thought to be the early Universe seeds that have bloomed into what we observe today as galactic and extra-galactic magnetic fields. Owing to their minuscule strength, primordial magnetic fields are very hard to detect in cosmological and astrophysical observations. We show how this changes if a part of neutral Dark Matter has a magnetic susceptibility. In this way, by studying Dark Matter one can obtain information about the properties of primordial magnetic fields, even if the latter have a comoving amplitude $B_0 \\lesssim0.01~\\mbox{nG}$. In our model Dark","authors_text":"Alexander Vikman, Federico R. Urban, Sabir Ramazanov","cross_cats":["hep-ph","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-10-07T12:52:23Z","title":"Observing primordial magnetic fields through Dark Matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.03383","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":"sha256:6a6a90b871997acf9f9f6eb1b52708710018bcb83d749cee4f73907fa7db9432","target":"record","created_at":"2026-07-05T02:14:11Z","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":"b3e7d6aa58e4d53d74e123e724b4af1e4e689b1208be25a55f6e08870dd9f964","cross_cats_sorted":["hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-10-07T12:52:23Z","title_canon_sha256":"c8b03b2da965a54c1b9a2d121ff4fce6c9c64731ec327e740e2f9e2571fd94f6"},"schema_version":"1.0","source":{"id":"2010.03383","kind":"arxiv","version":2}},"canonical_sha256":"221f62f5d220ecf8de18d611a9bd4c8ee0f3a3c75028222c91de1413ae7133ac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"221f62f5d220ecf8de18d611a9bd4c8ee0f3a3c75028222c91de1413ae7133ac","first_computed_at":"2026-07-05T02:14:11.434816Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:14:11.434816Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ik5jyo3U6l+10BHyacvEvr4jpB7qlC3/w5BEDg9n8qz7tmHFddoaxg6tS+PbcLquSLAJ5Yie8JsPptvueh/KAA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:14:11.435283Z","signed_message":"canonical_sha256_bytes"},"source_id":"2010.03383","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6a6a90b871997acf9f9f6eb1b52708710018bcb83d749cee4f73907fa7db9432","sha256:e20cbabc6d23d72a3ad61f128b85d011c497c17ee4cbd7474880d769f1775c8c"],"state_sha256":"c8e3260226df25a2d9bb5d9cf69d0e688ab65d60c6fcd44ad2686a7ff220e3b1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X6A7k3KNL0WAmhlpvK7YEA1uZM+uK6oHZB1VgcPXT8/pZPHPOBA5F/ZFlmzm4Ip/t5d4MqpnuiPKOiPdJZiVCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T12:06:53.214490Z","bundle_sha256":"cde67365ac06dbfb1d4f726b1a50f3ab633d762889f6cea9d2e82fafbc604e0b"}}