{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:AROE5EB7PHLHWKZILMSZAVS2QK","short_pith_number":"pith:AROE5EB7","canonical_record":{"source":{"id":"1403.5650","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-03-22T11:33:54Z","cross_cats_sorted":[],"title_canon_sha256":"62fea9a7cfa9971d425be4ff1ee91c14bcf75378a938fdf47b4cd97f511615f3","abstract_canon_sha256":"4d1671d742f9530f5beb5024046b7be7f040bb80a4f9750d7f5498db1d0dd6a4"},"schema_version":"1.0"},"canonical_sha256":"045c4e903f79d67b2b285b2590565a82adbc088f2256ed4925fb0646cb7383b7","source":{"kind":"arxiv","id":"1403.5650","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.5650","created_at":"2026-05-18T01:43:52Z"},{"alias_kind":"arxiv_version","alias_value":"1403.5650v1","created_at":"2026-05-18T01:43:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.5650","created_at":"2026-05-18T01:43:52Z"},{"alias_kind":"pith_short_12","alias_value":"AROE5EB7PHLH","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"AROE5EB7PHLHWKZI","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"AROE5EB7","created_at":"2026-05-18T12:28:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:AROE5EB7PHLHWKZILMSZAVS2QK","target":"record","payload":{"canonical_record":{"source":{"id":"1403.5650","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-03-22T11:33:54Z","cross_cats_sorted":[],"title_canon_sha256":"62fea9a7cfa9971d425be4ff1ee91c14bcf75378a938fdf47b4cd97f511615f3","abstract_canon_sha256":"4d1671d742f9530f5beb5024046b7be7f040bb80a4f9750d7f5498db1d0dd6a4"},"schema_version":"1.0"},"canonical_sha256":"045c4e903f79d67b2b285b2590565a82adbc088f2256ed4925fb0646cb7383b7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:52.269131Z","signature_b64":"4BbqL2pxAu2DN02VysNbxmMBQLDH92AEMnYEQ5FaO35zTKv7yv1/tpj1AHScv+d+0LH1fTKDsEYbnEnXNV5bDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"045c4e903f79d67b2b285b2590565a82adbc088f2256ed4925fb0646cb7383b7","last_reissued_at":"2026-05-18T01:43:52.268508Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:52.268508Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1403.5650","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":"2026-05-18T01:43:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iJYVnrYWis9086ho/KVSRlZY4R3d2B6zXEXrsigKBn/0DWOn/KTpvrqhNOR0rB7t4dfyc1j+TjNnSmrmQNCkDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T02:17:42.574427Z"},"content_sha256":"fe5f438cff8497fd34e1cce0e414deac33e59f97c3b7b731b4b45bf065a8c6fe","schema_version":"1.0","event_id":"sha256:fe5f438cff8497fd34e1cce0e414deac33e59f97c3b7b731b4b45bf065a8c6fe"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:AROE5EB7PHLHWKZILMSZAVS2QK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"HI absorption from the epoch of reionization and primordial magnetic fields","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Evgenii O. Vasiliev, Shiv K. Sethi","submitted_at":"2014-03-22T11:33:54Z","abstract_excerpt":"We study the impact of primordial magnetic fields on the HI absorption from the Epoch of Reionization. The presence of these fields result in two distinct effects: (a) the heating of the haloes from the decay of magnetic fields owing to ambipolar diffusion, and (b) an increase in the number of haloes owing to additional matter fluctuations induced by magnetic fields. We analyse both these effects and show that the latter is potentially observable because the number of haloes along of line of sight can increase by many orders of magnitude. While this effect is not strongly dependent on the magn"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.5650","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":"2026-05-18T01:43:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SlDTMaukLKZbZKW1XIzFfD+8jR8eCfBc4xRqGgDPK93P9Ebr8t6ronid6QEP1EAKtlXEScdpOiyTqI37CrsMBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T02:17:42.574813Z"},"content_sha256":"d62f7505948c8044cdf6fce639770efff589dc156384398d7b9eacd6665b66e7","schema_version":"1.0","event_id":"sha256:d62f7505948c8044cdf6fce639770efff589dc156384398d7b9eacd6665b66e7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AROE5EB7PHLHWKZILMSZAVS2QK/bundle.json","state_url":"https://pith.science/pith/AROE5EB7PHLHWKZILMSZAVS2QK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AROE5EB7PHLHWKZILMSZAVS2QK/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":"2026-06-03T02:17:42Z","links":{"resolver":"https://pith.science/pith/AROE5EB7PHLHWKZILMSZAVS2QK","bundle":"https://pith.science/pith/AROE5EB7PHLHWKZILMSZAVS2QK/bundle.json","state":"https://pith.science/pith/AROE5EB7PHLHWKZILMSZAVS2QK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AROE5EB7PHLHWKZILMSZAVS2QK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:AROE5EB7PHLHWKZILMSZAVS2QK","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":"4d1671d742f9530f5beb5024046b7be7f040bb80a4f9750d7f5498db1d0dd6a4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-03-22T11:33:54Z","title_canon_sha256":"62fea9a7cfa9971d425be4ff1ee91c14bcf75378a938fdf47b4cd97f511615f3"},"schema_version":"1.0","source":{"id":"1403.5650","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.5650","created_at":"2026-05-18T01:43:52Z"},{"alias_kind":"arxiv_version","alias_value":"1403.5650v1","created_at":"2026-05-18T01:43:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.5650","created_at":"2026-05-18T01:43:52Z"},{"alias_kind":"pith_short_12","alias_value":"AROE5EB7PHLH","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"AROE5EB7PHLHWKZI","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"AROE5EB7","created_at":"2026-05-18T12:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:d62f7505948c8044cdf6fce639770efff589dc156384398d7b9eacd6665b66e7","target":"graph","created_at":"2026-05-18T01:43:52Z","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 impact of primordial magnetic fields on the HI absorption from the Epoch of Reionization. The presence of these fields result in two distinct effects: (a) the heating of the haloes from the decay of magnetic fields owing to ambipolar diffusion, and (b) an increase in the number of haloes owing to additional matter fluctuations induced by magnetic fields. We analyse both these effects and show that the latter is potentially observable because the number of haloes along of line of sight can increase by many orders of magnitude. While this effect is not strongly dependent on the magn","authors_text":"Evgenii O. Vasiliev, Shiv K. Sethi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-03-22T11:33:54Z","title":"HI absorption from the epoch of reionization and primordial magnetic fields"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.5650","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:fe5f438cff8497fd34e1cce0e414deac33e59f97c3b7b731b4b45bf065a8c6fe","target":"record","created_at":"2026-05-18T01:43:52Z","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":"4d1671d742f9530f5beb5024046b7be7f040bb80a4f9750d7f5498db1d0dd6a4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-03-22T11:33:54Z","title_canon_sha256":"62fea9a7cfa9971d425be4ff1ee91c14bcf75378a938fdf47b4cd97f511615f3"},"schema_version":"1.0","source":{"id":"1403.5650","kind":"arxiv","version":1}},"canonical_sha256":"045c4e903f79d67b2b285b2590565a82adbc088f2256ed4925fb0646cb7383b7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"045c4e903f79d67b2b285b2590565a82adbc088f2256ed4925fb0646cb7383b7","first_computed_at":"2026-05-18T01:43:52.268508Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:52.268508Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4BbqL2pxAu2DN02VysNbxmMBQLDH92AEMnYEQ5FaO35zTKv7yv1/tpj1AHScv+d+0LH1fTKDsEYbnEnXNV5bDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:52.269131Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.5650","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fe5f438cff8497fd34e1cce0e414deac33e59f97c3b7b731b4b45bf065a8c6fe","sha256:d62f7505948c8044cdf6fce639770efff589dc156384398d7b9eacd6665b66e7"],"state_sha256":"27399f09c5f334c8dcf6eafbf09affb3e0f44e2723313f0938e68d0985caffec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c/YaXMDLkdNT4g0bhHj0WEB242UvDX1ZgAlBujzFhLsrm5q5551fziDjqw2dei4MohahZnkWy3FtK/STd5XxAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T02:17:42.576883Z","bundle_sha256":"e70ef4bd69dd92a511efb4254100c01d7701adf6f0d478976c98cbf3721e0338"}}