{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:KZNS5FX3LQQLNYDFV7ECOE5EC6","short_pith_number":"pith:KZNS5FX3","canonical_record":{"source":{"id":"2407.11923","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-07-16T17:14:57Z","cross_cats_sorted":[],"title_canon_sha256":"098cf7682523608335d4321e961670affaf030a70f8f6b6f8d058c4cd1bb8079","abstract_canon_sha256":"ab33110d39557e36e2894188d95ace96452fa952063486520001fdbeb87b7e5d"},"schema_version":"1.0"},"canonical_sha256":"565b2e96fb5c20b6e065afc82713a417bfad3ab5e102040698890498168d7924","source":{"kind":"arxiv","id":"2407.11923","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.11923","created_at":"2026-07-05T10:04:39Z"},{"alias_kind":"arxiv_version","alias_value":"2407.11923v2","created_at":"2026-07-05T10:04:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.11923","created_at":"2026-07-05T10:04:39Z"},{"alias_kind":"pith_short_12","alias_value":"KZNS5FX3LQQL","created_at":"2026-07-05T10:04:39Z"},{"alias_kind":"pith_short_16","alias_value":"KZNS5FX3LQQLNYDF","created_at":"2026-07-05T10:04:39Z"},{"alias_kind":"pith_short_8","alias_value":"KZNS5FX3","created_at":"2026-07-05T10:04:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:KZNS5FX3LQQLNYDFV7ECOE5EC6","target":"record","payload":{"canonical_record":{"source":{"id":"2407.11923","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-07-16T17:14:57Z","cross_cats_sorted":[],"title_canon_sha256":"098cf7682523608335d4321e961670affaf030a70f8f6b6f8d058c4cd1bb8079","abstract_canon_sha256":"ab33110d39557e36e2894188d95ace96452fa952063486520001fdbeb87b7e5d"},"schema_version":"1.0"},"canonical_sha256":"565b2e96fb5c20b6e065afc82713a417bfad3ab5e102040698890498168d7924","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:04:39.191469Z","signature_b64":"xD9sjxrAwqIq8HRLVS4w3A7ygM32Hc1Je41eYXvkpixmbmD0UwZxvGNvRsfi9ybVtj83ZiMhvmbJnX6ry5YBDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"565b2e96fb5c20b6e065afc82713a417bfad3ab5e102040698890498168d7924","last_reissued_at":"2026-07-05T10:04:39.191002Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:04:39.191002Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2407.11923","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":"2026-07-05T10:04:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xhB9tK5aTFV6kTnacZ2hbCgW2/yHJXKJTaZdBkWH89v7bWKN/DpW8bcbL2NLKK0FzaA5aQ5lNtzl69HGIkqKBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T10:35:03.111197Z"},"content_sha256":"f5574bb98f7772e4a0ae41dea3b2d76e83a96abd3173ab92c92ab4e1801ebad7","schema_version":"1.0","event_id":"sha256:f5574bb98f7772e4a0ae41dea3b2d76e83a96abd3173ab92c92ab4e1801ebad7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:KZNS5FX3LQQLNYDFV7ECOE5EC6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Revisiting primordial magnetic fields through 21-cm physics: Bounds and forecasts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Arko Bhaumik, Debarun Paul, Supratik Pal","submitted_at":"2024-07-16T17:14:57Z","abstract_excerpt":"Primordial magnetic fields (PMFs) may significantly influence 21-cm physics via two mechanisms: (i) magnetic heating of the intergalactic medium (IGM) through ambipolar diffusion (AD) and decaying magnetohydrodynamic turbulence (DT), (ii) impact on the star formation rate density (SFRD) through small-scale enhancement of the matter power spectrum. In this analysis, we integrate both of these effects within a unified analytical framework and use it to determine upper bounds on the parameter space of a nearly scale-invariant non-helical PMF in the light of the global 21-cm signal observed by EDG"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.11923","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/2407.11923/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":"2026-07-05T10:04:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cp63dIq1LejTGAc7aHutRxmyv5bKdHa9T9p1xUvdQqIYKmOrvwxuI+sNv62Wx/TFv5UTg6hEES9+NK8nxIdHAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T10:35:03.111755Z"},"content_sha256":"e5b77714284d7ca1a9697b59e5b0e34124394cf6a5d4744d7c38ea3f25e881b3","schema_version":"1.0","event_id":"sha256:e5b77714284d7ca1a9697b59e5b0e34124394cf6a5d4744d7c38ea3f25e881b3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KZNS5FX3LQQLNYDFV7ECOE5EC6/bundle.json","state_url":"https://pith.science/pith/KZNS5FX3LQQLNYDFV7ECOE5EC6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KZNS5FX3LQQLNYDFV7ECOE5EC6/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":"2026-08-13T10:35:03Z","links":{"resolver":"https://pith.science/pith/KZNS5FX3LQQLNYDFV7ECOE5EC6","bundle":"https://pith.science/pith/KZNS5FX3LQQLNYDFV7ECOE5EC6/bundle.json","state":"https://pith.science/pith/KZNS5FX3LQQLNYDFV7ECOE5EC6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KZNS5FX3LQQLNYDFV7ECOE5EC6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:KZNS5FX3LQQLNYDFV7ECOE5EC6","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":"ab33110d39557e36e2894188d95ace96452fa952063486520001fdbeb87b7e5d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-07-16T17:14:57Z","title_canon_sha256":"098cf7682523608335d4321e961670affaf030a70f8f6b6f8d058c4cd1bb8079"},"schema_version":"1.0","source":{"id":"2407.11923","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.11923","created_at":"2026-07-05T10:04:39Z"},{"alias_kind":"arxiv_version","alias_value":"2407.11923v2","created_at":"2026-07-05T10:04:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.11923","created_at":"2026-07-05T10:04:39Z"},{"alias_kind":"pith_short_12","alias_value":"KZNS5FX3LQQL","created_at":"2026-07-05T10:04:39Z"},{"alias_kind":"pith_short_16","alias_value":"KZNS5FX3LQQLNYDF","created_at":"2026-07-05T10:04:39Z"},{"alias_kind":"pith_short_8","alias_value":"KZNS5FX3","created_at":"2026-07-05T10:04:39Z"}],"graph_snapshots":[{"event_id":"sha256:e5b77714284d7ca1a9697b59e5b0e34124394cf6a5d4744d7c38ea3f25e881b3","target":"graph","created_at":"2026-07-05T10:04:39Z","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/2407.11923/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Primordial magnetic fields (PMFs) may significantly influence 21-cm physics via two mechanisms: (i) magnetic heating of the intergalactic medium (IGM) through ambipolar diffusion (AD) and decaying magnetohydrodynamic turbulence (DT), (ii) impact on the star formation rate density (SFRD) through small-scale enhancement of the matter power spectrum. In this analysis, we integrate both of these effects within a unified analytical framework and use it to determine upper bounds on the parameter space of a nearly scale-invariant non-helical PMF in the light of the global 21-cm signal observed by EDG","authors_text":"Arko Bhaumik, Debarun Paul, Supratik Pal","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-07-16T17:14:57Z","title":"Revisiting primordial magnetic fields through 21-cm physics: Bounds and forecasts"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.11923","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:f5574bb98f7772e4a0ae41dea3b2d76e83a96abd3173ab92c92ab4e1801ebad7","target":"record","created_at":"2026-07-05T10:04:39Z","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":"ab33110d39557e36e2894188d95ace96452fa952063486520001fdbeb87b7e5d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-07-16T17:14:57Z","title_canon_sha256":"098cf7682523608335d4321e961670affaf030a70f8f6b6f8d058c4cd1bb8079"},"schema_version":"1.0","source":{"id":"2407.11923","kind":"arxiv","version":2}},"canonical_sha256":"565b2e96fb5c20b6e065afc82713a417bfad3ab5e102040698890498168d7924","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"565b2e96fb5c20b6e065afc82713a417bfad3ab5e102040698890498168d7924","first_computed_at":"2026-07-05T10:04:39.191002Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:04:39.191002Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xD9sjxrAwqIq8HRLVS4w3A7ygM32Hc1Je41eYXvkpixmbmD0UwZxvGNvRsfi9ybVtj83ZiMhvmbJnX6ry5YBDg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:04:39.191469Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.11923","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f5574bb98f7772e4a0ae41dea3b2d76e83a96abd3173ab92c92ab4e1801ebad7","sha256:e5b77714284d7ca1a9697b59e5b0e34124394cf6a5d4744d7c38ea3f25e881b3"],"state_sha256":"7d31a32446ccc7911aa8b7b93432b79d41d6544afc3468c7089d831b55cd460c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3LjNHH/V7jEiJUxXpZ+N+feKWqUmfm+M1yk5VX0ImUa7IT/bgtBhXiOWcIdZvR2Fww+bUAES3E7jOanBaNodBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T10:35:03.115512Z","bundle_sha256":"6b580d8ddd29912bc5d8f12fbcb2ec8eada60f29272e0716d964c5c48acff26a"}}