{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:56PONR7V35EEFKILSRSHBY6MC2","short_pith_number":"pith:56PONR7V","canonical_record":{"source":{"id":"1411.4826","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-18T12:47:36Z","cross_cats_sorted":[],"title_canon_sha256":"5f98766e9a2bad7faf4660dcbfdd23eaa4a9a8e52d3542a3eb8e3f21b4d66b85","abstract_canon_sha256":"6987aa7c351e7e6549e3cb2864a5e891efd58c4e576653d1d4f6f9e8dbfda7d3"},"schema_version":"1.0"},"canonical_sha256":"ef9ee6c7f5df4842a90b946470e3cc169f18732e25528f59142b948487b837af","source":{"kind":"arxiv","id":"1411.4826","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.4826","created_at":"2026-05-18T02:34:51Z"},{"alias_kind":"arxiv_version","alias_value":"1411.4826v1","created_at":"2026-05-18T02:34:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.4826","created_at":"2026-05-18T02:34:51Z"},{"alias_kind":"pith_short_12","alias_value":"56PONR7V35EE","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"56PONR7V35EEFKIL","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"56PONR7V","created_at":"2026-05-18T12:28:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:56PONR7V35EEFKILSRSHBY6MC2","target":"record","payload":{"canonical_record":{"source":{"id":"1411.4826","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-18T12:47:36Z","cross_cats_sorted":[],"title_canon_sha256":"5f98766e9a2bad7faf4660dcbfdd23eaa4a9a8e52d3542a3eb8e3f21b4d66b85","abstract_canon_sha256":"6987aa7c351e7e6549e3cb2864a5e891efd58c4e576653d1d4f6f9e8dbfda7d3"},"schema_version":"1.0"},"canonical_sha256":"ef9ee6c7f5df4842a90b946470e3cc169f18732e25528f59142b948487b837af","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:34:51.157998Z","signature_b64":"TD48M2Hq7nTjCcx0XlPvijzGM8X+V3UyLsabszj0Iwpn/2KlqdcM9ahwnd5Z0t89ACX5NgKPUoKzL5AWiWM2DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ef9ee6c7f5df4842a90b946470e3cc169f18732e25528f59142b948487b837af","last_reissued_at":"2026-05-18T02:34:51.157582Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:34:51.157582Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1411.4826","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":"2026-05-18T02:34:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6dI2xho9mj4gHmTW4esT/dNf1QYL+NGfna8bcWfjhohmzIWSEkv6WXN+XCCEoCxxK3aEGfT/8tfjgwMtbtxoDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T20:11:38.155390Z"},"content_sha256":"98e3b0ce4f5a5cd7f562776273a3ab89532dbb99f50d637d6a72a6e9ca1e47df","schema_version":"1.0","event_id":"sha256:98e3b0ce4f5a5cd7f562776273a3ab89532dbb99f50d637d6a72a6e9ca1e47df"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:56PONR7V35EEFKILSRSHBY6MC2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Photoionization rates for helium: update","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Justyna M. Sok\\'o{\\l}, Maciej Bzowski","submitted_at":"2014-11-18T12:47:36Z","abstract_excerpt":"The NIS He gas has been observed at a few AU to the Sun almost from the beginning of the space age. To model its flow an estimate of the loss rates due to ionization by solar extreme-ultraviolet (EUV) flux is needed. The EUV irradiance has been measured directly from mid 1990-ties, but with high temporal and spectral resolution only from 2002. Beforehand only EUV proxies are available. A new method of reconstruction of the Carrington rotation averaged photoionization rates for neutral interstellar helium (NIS He) in the ecliptic at 1 AU to the Sun before 2002 is presented. We investigate the r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.4826","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":"2026-05-18T02:34:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qreKvGYmw5pfLMLfsXKCz1JIEl7C54sqpc+UiIxwPvtX8n1RWwfr45Hs4ylfxfKbHwE8JrYiBkS3jQpITQ2LDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T20:11:38.155908Z"},"content_sha256":"8655d4b3a582a44a376ecbd5a33cdb6384e9c6c659cb528da47e4f6f8197e5d9","schema_version":"1.0","event_id":"sha256:8655d4b3a582a44a376ecbd5a33cdb6384e9c6c659cb528da47e4f6f8197e5d9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/56PONR7V35EEFKILSRSHBY6MC2/bundle.json","state_url":"https://pith.science/pith/56PONR7V35EEFKILSRSHBY6MC2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/56PONR7V35EEFKILSRSHBY6MC2/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":"2026-05-27T20:11:38Z","links":{"resolver":"https://pith.science/pith/56PONR7V35EEFKILSRSHBY6MC2","bundle":"https://pith.science/pith/56PONR7V35EEFKILSRSHBY6MC2/bundle.json","state":"https://pith.science/pith/56PONR7V35EEFKILSRSHBY6MC2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/56PONR7V35EEFKILSRSHBY6MC2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:56PONR7V35EEFKILSRSHBY6MC2","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":"6987aa7c351e7e6549e3cb2864a5e891efd58c4e576653d1d4f6f9e8dbfda7d3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-18T12:47:36Z","title_canon_sha256":"5f98766e9a2bad7faf4660dcbfdd23eaa4a9a8e52d3542a3eb8e3f21b4d66b85"},"schema_version":"1.0","source":{"id":"1411.4826","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.4826","created_at":"2026-05-18T02:34:51Z"},{"alias_kind":"arxiv_version","alias_value":"1411.4826v1","created_at":"2026-05-18T02:34:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.4826","created_at":"2026-05-18T02:34:51Z"},{"alias_kind":"pith_short_12","alias_value":"56PONR7V35EE","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"56PONR7V35EEFKIL","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"56PONR7V","created_at":"2026-05-18T12:28:14Z"}],"graph_snapshots":[{"event_id":"sha256:8655d4b3a582a44a376ecbd5a33cdb6384e9c6c659cb528da47e4f6f8197e5d9","target":"graph","created_at":"2026-05-18T02:34:51Z","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 NIS He gas has been observed at a few AU to the Sun almost from the beginning of the space age. To model its flow an estimate of the loss rates due to ionization by solar extreme-ultraviolet (EUV) flux is needed. The EUV irradiance has been measured directly from mid 1990-ties, but with high temporal and spectral resolution only from 2002. Beforehand only EUV proxies are available. A new method of reconstruction of the Carrington rotation averaged photoionization rates for neutral interstellar helium (NIS He) in the ecliptic at 1 AU to the Sun before 2002 is presented. We investigate the r","authors_text":"Justyna M. Sok\\'o{\\l}, Maciej Bzowski","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-18T12:47:36Z","title":"Photoionization rates for helium: update"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.4826","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":"sha256:98e3b0ce4f5a5cd7f562776273a3ab89532dbb99f50d637d6a72a6e9ca1e47df","target":"record","created_at":"2026-05-18T02:34:51Z","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":"6987aa7c351e7e6549e3cb2864a5e891efd58c4e576653d1d4f6f9e8dbfda7d3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-18T12:47:36Z","title_canon_sha256":"5f98766e9a2bad7faf4660dcbfdd23eaa4a9a8e52d3542a3eb8e3f21b4d66b85"},"schema_version":"1.0","source":{"id":"1411.4826","kind":"arxiv","version":1}},"canonical_sha256":"ef9ee6c7f5df4842a90b946470e3cc169f18732e25528f59142b948487b837af","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ef9ee6c7f5df4842a90b946470e3cc169f18732e25528f59142b948487b837af","first_computed_at":"2026-05-18T02:34:51.157582Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:34:51.157582Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TD48M2Hq7nTjCcx0XlPvijzGM8X+V3UyLsabszj0Iwpn/2KlqdcM9ahwnd5Z0t89ACX5NgKPUoKzL5AWiWM2DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:34:51.157998Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.4826","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:98e3b0ce4f5a5cd7f562776273a3ab89532dbb99f50d637d6a72a6e9ca1e47df","sha256:8655d4b3a582a44a376ecbd5a33cdb6384e9c6c659cb528da47e4f6f8197e5d9"],"state_sha256":"ba73ba6926c9c2bb2d5ac1503c8a9b094d240e5454463575b9377c770998f8cc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pDIAG7N+JcLcw05ZAFxJYSCajInWqoAB5DltQHuWEZJtIw3bV/S/As4lNVz02tmgVWeh53Csjb4RWBqCt9dsAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T20:11:38.158849Z","bundle_sha256":"e01179c2d92260dc41f831a06b4c999df563df7015b128ca3ad84db91324d8a2"}}