{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1997:UW3YVBIJBSVV2LQGMNNDQTHHVD","short_pith_number":"pith:UW3YVBIJ","canonical_record":{"source":{"id":"astro-ph/9708004","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1997-08-01T10:24:22Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"1b110e43aeb166680d87fde60a6feb8a88a534976c17ab347ba0a02ab06f4307","abstract_canon_sha256":"cb76ade9d0d4ea38709a7a8fb6bef80bf04df1116edeeda5189954e95b98040f"},"schema_version":"1.0"},"canonical_sha256":"a5b78a85090cab5d2e06635a384ce7a8e8c8a3aacbae4348a178ab56e669994d","source":{"kind":"arxiv","id":"astro-ph/9708004","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9708004","created_at":"2026-05-18T01:08:08Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9708004v2","created_at":"2026-05-18T01:08:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9708004","created_at":"2026-05-18T01:08:08Z"},{"alias_kind":"pith_short_12","alias_value":"UW3YVBIJBSVV","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"UW3YVBIJBSVV2LQG","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"UW3YVBIJ","created_at":"2026-05-18T12:25:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1997:UW3YVBIJBSVV2LQGMNNDQTHHVD","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9708004","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1997-08-01T10:24:22Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"1b110e43aeb166680d87fde60a6feb8a88a534976c17ab347ba0a02ab06f4307","abstract_canon_sha256":"cb76ade9d0d4ea38709a7a8fb6bef80bf04df1116edeeda5189954e95b98040f"},"schema_version":"1.0"},"canonical_sha256":"a5b78a85090cab5d2e06635a384ce7a8e8c8a3aacbae4348a178ab56e669994d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:08:08.112238Z","signature_b64":"pC/Rpj3DB8s7MjbX3gaTVFLNu0+1F2f6Yb76RiqA3WyBP8XfI67fkoL2CwrRYTf39h/A+knvFrWChssOt5QPAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a5b78a85090cab5d2e06635a384ce7a8e8c8a3aacbae4348a178ab56e669994d","last_reissued_at":"2026-05-18T01:08:08.111806Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:08:08.111806Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9708004","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":"2026-05-18T01:08:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QIFOgfwa/kIwAoxkSVTI+AvQ32xdIjkTYelOH1PIk3qBufzFxUmXs41swN3I5fpjFPKuICFl7yUyCtggNlpTAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T08:33:55.691076Z"},"content_sha256":"7d9a2e4d72e8e36c86bdd0281fafcbbad60d5fc2bf02d60c057d2d14f94c28bf","schema_version":"1.0","event_id":"sha256:7d9a2e4d72e8e36c86bdd0281fafcbbad60d5fc2bf02d60c057d2d14f94c28bf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1997:UW3YVBIJBSVV2LQGMNNDQTHHVD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetic Fields from Phase Transitions","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph","authors_text":"Allen Everett (Tufts), Mark Hindmarsh (Sussex)","submitted_at":"1997-08-01T10:24:22Z","abstract_excerpt":"The generation of primordial magnetic fields from cosmological phase transitions is discussed, paying particular attention to the electroweak transition and to the various definitions of the `average' field that have been put forward. It is emphasised that only the volume average has dynamical significance as a seed for galactic dynamos. On rather general grounds of causality and energy conservation, it is shown that, in the absence of MHD effects that transfer power in the magnetic field from small to large scales, processes occurring at the electroweak transition cannot generate fields stron"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9708004","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":"2026-05-18T01:08:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uWodWyCGv+SIIkmFWxq2DASZScmoigsgHO4lLwtcjltEyfmWXTAgv1GAGcWoFL89WtjXF5ElehuJl1KTZhI+Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T08:33:55.691446Z"},"content_sha256":"19e62bc081176f6825c5ee865b925a7c41b122c37f0625cd14b81e93876df528","schema_version":"1.0","event_id":"sha256:19e62bc081176f6825c5ee865b925a7c41b122c37f0625cd14b81e93876df528"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UW3YVBIJBSVV2LQGMNNDQTHHVD/bundle.json","state_url":"https://pith.science/pith/UW3YVBIJBSVV2LQGMNNDQTHHVD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UW3YVBIJBSVV2LQGMNNDQTHHVD/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":"2026-06-04T08:33:55Z","links":{"resolver":"https://pith.science/pith/UW3YVBIJBSVV2LQGMNNDQTHHVD","bundle":"https://pith.science/pith/UW3YVBIJBSVV2LQGMNNDQTHHVD/bundle.json","state":"https://pith.science/pith/UW3YVBIJBSVV2LQGMNNDQTHHVD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UW3YVBIJBSVV2LQGMNNDQTHHVD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1997:UW3YVBIJBSVV2LQGMNNDQTHHVD","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":"cb76ade9d0d4ea38709a7a8fb6bef80bf04df1116edeeda5189954e95b98040f","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"1997-08-01T10:24:22Z","title_canon_sha256":"1b110e43aeb166680d87fde60a6feb8a88a534976c17ab347ba0a02ab06f4307"},"schema_version":"1.0","source":{"id":"astro-ph/9708004","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9708004","created_at":"2026-05-18T01:08:08Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9708004v2","created_at":"2026-05-18T01:08:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9708004","created_at":"2026-05-18T01:08:08Z"},{"alias_kind":"pith_short_12","alias_value":"UW3YVBIJBSVV","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"UW3YVBIJBSVV2LQG","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"UW3YVBIJ","created_at":"2026-05-18T12:25:48Z"}],"graph_snapshots":[{"event_id":"sha256:19e62bc081176f6825c5ee865b925a7c41b122c37f0625cd14b81e93876df528","target":"graph","created_at":"2026-05-18T01:08:08Z","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":"The generation of primordial magnetic fields from cosmological phase transitions is discussed, paying particular attention to the electroweak transition and to the various definitions of the `average' field that have been put forward. It is emphasised that only the volume average has dynamical significance as a seed for galactic dynamos. On rather general grounds of causality and energy conservation, it is shown that, in the absence of MHD effects that transfer power in the magnetic field from small to large scales, processes occurring at the electroweak transition cannot generate fields stron","authors_text":"Allen Everett (Tufts), Mark Hindmarsh (Sussex)","cross_cats":["hep-ph"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1997-08-01T10:24:22Z","title":"Magnetic Fields from Phase Transitions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9708004","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":"sha256:7d9a2e4d72e8e36c86bdd0281fafcbbad60d5fc2bf02d60c057d2d14f94c28bf","target":"record","created_at":"2026-05-18T01:08:08Z","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":"cb76ade9d0d4ea38709a7a8fb6bef80bf04df1116edeeda5189954e95b98040f","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"1997-08-01T10:24:22Z","title_canon_sha256":"1b110e43aeb166680d87fde60a6feb8a88a534976c17ab347ba0a02ab06f4307"},"schema_version":"1.0","source":{"id":"astro-ph/9708004","kind":"arxiv","version":2}},"canonical_sha256":"a5b78a85090cab5d2e06635a384ce7a8e8c8a3aacbae4348a178ab56e669994d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a5b78a85090cab5d2e06635a384ce7a8e8c8a3aacbae4348a178ab56e669994d","first_computed_at":"2026-05-18T01:08:08.111806Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:08:08.111806Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pC/Rpj3DB8s7MjbX3gaTVFLNu0+1F2f6Yb76RiqA3WyBP8XfI67fkoL2CwrRYTf39h/A+knvFrWChssOt5QPAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:08:08.112238Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9708004","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7d9a2e4d72e8e36c86bdd0281fafcbbad60d5fc2bf02d60c057d2d14f94c28bf","sha256:19e62bc081176f6825c5ee865b925a7c41b122c37f0625cd14b81e93876df528"],"state_sha256":"3ad36ec0935c437c194cddd9571aa83546e81d5432c2779b8600a642d4465a1d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UfjsfeED6yaVnDPVKCz4uHb10qCNwQP9kiY5Z46jUm6ckNyuT31Y/IpA0orP51N5jmxjN1apDFgDuoOlB3mbDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T08:33:55.693686Z","bundle_sha256":"a81765f75bdc9f585789bc18ed191d8dc346d190d43a670e84d1fc021241742d"}}