{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:EJ5XGESFZIVH4DD6HC5HLZI7DP","short_pith_number":"pith:EJ5XGESF","canonical_record":{"source":{"id":"astro-ph/9904231","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-04-18T21:26:46Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"3de8b19edf1ae67a8ca2c15c3acdfeb10b1f769a37408979a805ade4096fec4a","abstract_canon_sha256":"fe2c30e7de8daaa8d927feb78b281024e12c3a26463c9369cb6f771bf11436d8"},"schema_version":"1.0"},"canonical_sha256":"227b731245ca2a7e0c7e38ba75e51f1bda0cda162b937096047a8c1326b1f2e5","source":{"kind":"arxiv","id":"astro-ph/9904231","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9904231","created_at":"2026-07-04T16:10:54Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9904231v2","created_at":"2026-07-04T16:10:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9904231","created_at":"2026-07-04T16:10:54Z"},{"alias_kind":"pith_short_12","alias_value":"EJ5XGESFZIVH","created_at":"2026-07-04T16:10:54Z"},{"alias_kind":"pith_short_16","alias_value":"EJ5XGESFZIVH4DD6","created_at":"2026-07-04T16:10:54Z"},{"alias_kind":"pith_short_8","alias_value":"EJ5XGESF","created_at":"2026-07-04T16:10:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:EJ5XGESFZIVH4DD6HC5HLZI7DP","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9904231","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-04-18T21:26:46Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"3de8b19edf1ae67a8ca2c15c3acdfeb10b1f769a37408979a805ade4096fec4a","abstract_canon_sha256":"fe2c30e7de8daaa8d927feb78b281024e12c3a26463c9369cb6f771bf11436d8"},"schema_version":"1.0"},"canonical_sha256":"227b731245ca2a7e0c7e38ba75e51f1bda0cda162b937096047a8c1326b1f2e5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:10:54.178095Z","signature_b64":"s1NPjYF9KIWGzO8FRDzNdiRs6SerfIJdamTKqN6SdNZHhUFa760MmaP+Xkwh7HkO9NDMN+vJQnqfO320fzA1Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"227b731245ca2a7e0c7e38ba75e51f1bda0cda162b937096047a8c1326b1f2e5","last_reissued_at":"2026-07-04T16:10:54.177675Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:10:54.177675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9904231","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":"2026-07-04T16:10:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yqX+UfaeqGZEhMU4BW8KoDzU4yQ7hjjtCNHzfo0QTHdYRw6LypA1k3koNc65x1oHg5ieLbyjtiJOSqOTt0LnBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-26T14:40:55.699915Z"},"content_sha256":"28a0065aaea21d3f7c437a87b9a4faaae5fade4fea48d9d9191b3963d417e8a1","schema_version":"1.0","event_id":"sha256:28a0065aaea21d3f7c437a87b9a4faaae5fade4fea48d9d9191b3963d417e8a1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:EJ5XGESFZIVH4DD6HC5HLZI7DP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The General Primordial Cosmic Perturbation","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph","authors_text":"K. Moodley, M. Bucher, N. Turok (DAMTP, U. of Cambridge)","submitted_at":"1999-04-18T21:26:46Z","abstract_excerpt":"We consider the most general primordial cosmological perturbation in a universe filled with photons, baryons, neutrinos, and a hypothetical cold dark matter (CDM) component within the framework of linearized perturbation theory. We give a careful discussion of the different allowed modes, distinguishing modes which are regular at early times, singular at early times, or pure gauge. As well as the familiar growing and decaying adiabatic modes and the baryonic and CDM isocurvature modes we identify two {\\it neutrino isocurvature} modes which do not seem to have been discussed before. In the firs"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9904231","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/astro-ph/9904231/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":"2026-07-04T16:10:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o2VyjjOjI8Avgworvs8TqEppPrbHk7BerdnLCO2A1XQLZzx/x7Q/zFa3xVQ81akTNOPd+c56EiTmt5Vxm0ayBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-26T14:40:55.700291Z"},"content_sha256":"1e2545069bf1f6fa8809dccadf20b9eeed2439b17cbcc778b1c45b32ca150ecb","schema_version":"1.0","event_id":"sha256:1e2545069bf1f6fa8809dccadf20b9eeed2439b17cbcc778b1c45b32ca150ecb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EJ5XGESFZIVH4DD6HC5HLZI7DP/bundle.json","state_url":"https://pith.science/pith/EJ5XGESFZIVH4DD6HC5HLZI7DP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EJ5XGESFZIVH4DD6HC5HLZI7DP/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":"2026-07-26T14:40:55Z","links":{"resolver":"https://pith.science/pith/EJ5XGESFZIVH4DD6HC5HLZI7DP","bundle":"https://pith.science/pith/EJ5XGESFZIVH4DD6HC5HLZI7DP/bundle.json","state":"https://pith.science/pith/EJ5XGESFZIVH4DD6HC5HLZI7DP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EJ5XGESFZIVH4DD6HC5HLZI7DP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:EJ5XGESFZIVH4DD6HC5HLZI7DP","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":"fe2c30e7de8daaa8d927feb78b281024e12c3a26463c9369cb6f771bf11436d8","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"1999-04-18T21:26:46Z","title_canon_sha256":"3de8b19edf1ae67a8ca2c15c3acdfeb10b1f769a37408979a805ade4096fec4a"},"schema_version":"1.0","source":{"id":"astro-ph/9904231","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9904231","created_at":"2026-07-04T16:10:54Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9904231v2","created_at":"2026-07-04T16:10:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9904231","created_at":"2026-07-04T16:10:54Z"},{"alias_kind":"pith_short_12","alias_value":"EJ5XGESFZIVH","created_at":"2026-07-04T16:10:54Z"},{"alias_kind":"pith_short_16","alias_value":"EJ5XGESFZIVH4DD6","created_at":"2026-07-04T16:10:54Z"},{"alias_kind":"pith_short_8","alias_value":"EJ5XGESF","created_at":"2026-07-04T16:10:54Z"}],"graph_snapshots":[{"event_id":"sha256:1e2545069bf1f6fa8809dccadf20b9eeed2439b17cbcc778b1c45b32ca150ecb","target":"graph","created_at":"2026-07-04T16:10:54Z","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/astro-ph/9904231/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We consider the most general primordial cosmological perturbation in a universe filled with photons, baryons, neutrinos, and a hypothetical cold dark matter (CDM) component within the framework of linearized perturbation theory. We give a careful discussion of the different allowed modes, distinguishing modes which are regular at early times, singular at early times, or pure gauge. As well as the familiar growing and decaying adiabatic modes and the baryonic and CDM isocurvature modes we identify two {\\it neutrino isocurvature} modes which do not seem to have been discussed before. In the firs","authors_text":"K. Moodley, M. Bucher, N. Turok (DAMTP, U. of Cambridge)","cross_cats":["hep-ph"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1999-04-18T21:26:46Z","title":"The General Primordial Cosmic Perturbation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9904231","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":"sha256:28a0065aaea21d3f7c437a87b9a4faaae5fade4fea48d9d9191b3963d417e8a1","target":"record","created_at":"2026-07-04T16:10:54Z","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":"fe2c30e7de8daaa8d927feb78b281024e12c3a26463c9369cb6f771bf11436d8","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"1999-04-18T21:26:46Z","title_canon_sha256":"3de8b19edf1ae67a8ca2c15c3acdfeb10b1f769a37408979a805ade4096fec4a"},"schema_version":"1.0","source":{"id":"astro-ph/9904231","kind":"arxiv","version":2}},"canonical_sha256":"227b731245ca2a7e0c7e38ba75e51f1bda0cda162b937096047a8c1326b1f2e5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"227b731245ca2a7e0c7e38ba75e51f1bda0cda162b937096047a8c1326b1f2e5","first_computed_at":"2026-07-04T16:10:54.177675Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:10:54.177675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"s1NPjYF9KIWGzO8FRDzNdiRs6SerfIJdamTKqN6SdNZHhUFa760MmaP+Xkwh7HkO9NDMN+vJQnqfO320fzA1Cw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:10:54.178095Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9904231","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:28a0065aaea21d3f7c437a87b9a4faaae5fade4fea48d9d9191b3963d417e8a1","sha256:1e2545069bf1f6fa8809dccadf20b9eeed2439b17cbcc778b1c45b32ca150ecb"],"state_sha256":"08c599a453c55b815ada25d0e5d8c5d9648c8a3b9e78be23896b5d97f29be1d4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VnIBaAe2f53HvbdF/dHT04CoOc3fpNi4ZgyhSQuB1yXEx22VY2+bC+eQIHXmt3yvuVxIpVjWiOr1Zrh7i2CzDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-26T14:40:55.702526Z","bundle_sha256":"87493340eeb2ddcbc80e6265b9b35250e8c09fbbf3901a7a60aba293a94cb0a3"}}