{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:DFDYJCIDTV2QZC6NROTY3VRAXV","short_pith_number":"pith:DFDYJCID","canonical_record":{"source":{"id":"1302.2424","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-02-11T09:31:59Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"ddf13e2f642cb13ec28c4c13fc7bd53da7de4492f2c29055725b2798942bc4cd","abstract_canon_sha256":"b9ee72b34f2d6df0d513e861e6f95f4f80009197548123934a9b7f2f09c7cf63"},"schema_version":"1.0"},"canonical_sha256":"19478489039d750c8bcd8ba78dd620bd7bae11350c9274400044eb10a7e6a80a","source":{"kind":"arxiv","id":"1302.2424","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.2424","created_at":"2026-05-18T03:16:18Z"},{"alias_kind":"arxiv_version","alias_value":"1302.2424v3","created_at":"2026-05-18T03:16:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.2424","created_at":"2026-05-18T03:16:18Z"},{"alias_kind":"pith_short_12","alias_value":"DFDYJCIDTV2Q","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"DFDYJCIDTV2QZC6N","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"DFDYJCID","created_at":"2026-05-18T12:27:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:DFDYJCIDTV2QZC6NROTY3VRAXV","target":"record","payload":{"canonical_record":{"source":{"id":"1302.2424","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-02-11T09:31:59Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"ddf13e2f642cb13ec28c4c13fc7bd53da7de4492f2c29055725b2798942bc4cd","abstract_canon_sha256":"b9ee72b34f2d6df0d513e861e6f95f4f80009197548123934a9b7f2f09c7cf63"},"schema_version":"1.0"},"canonical_sha256":"19478489039d750c8bcd8ba78dd620bd7bae11350c9274400044eb10a7e6a80a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:16:18.996823Z","signature_b64":"+RLT5pkB2Ty3aQBcIWS4bXVD5o9DPtIAgD37OkK9113AcsdhNzODgZhV7NPmJOyCrAYhymzJmWLEAglofzKzAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"19478489039d750c8bcd8ba78dd620bd7bae11350c9274400044eb10a7e6a80a","last_reissued_at":"2026-05-18T03:16:18.994452Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:16:18.994452Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1302.2424","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:16:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UsQ43T25n+rAbsGlVOKUCifIOAGYzRDP1/ogU6fZV89LxlNG+Ph/JWkFu1aSOvxNywKpCYAdpxr2476b/1KlBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T21:45:01.858037Z"},"content_sha256":"8d24d36df6355a557240062ac06257c74fcbbcf4ac938443b3bac8a28c877304","schema_version":"1.0","event_id":"sha256:8d24d36df6355a557240062ac06257c74fcbbcf4ac938443b3bac8a28c877304"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:DFDYJCIDTV2QZC6NROTY3VRAXV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A local interstellar spectrum for galactic electrons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"M.S. Potgieter, R.R. Nndanganeni","submitted_at":"2013-02-11T09:31:59Z","abstract_excerpt":"A heliopause spectrum at 122 AU from the Sun is presented for galactic electrons over an energy range from 1 MeV to 50 GeV that can be considered the lowest possible local interstellar spectrum (LIS). The focus is on the spectral shape of the LIS below 1.0 GeV. The study is done by using a comprehensive numerical model for solar modulation in comparison with Voyager 1 observations at 110 AU from the Sun and PAMELA data at Earth. Below 1.0 GeV, this LIS exhibits a power law,E to the power -(1.55+-0.05), where E is the kinetic energy. However, reproducing the PAMELA electron spectrum averaged fo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.2424","kind":"arxiv","version":3},"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":"2026-05-18T03:16:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IxoT1oYOmbDubIio3a1QQjIVTzLDmT/VPribb5+9sLWw0wldnjEPULducHdAEo9BPE0B1eiHqOJRLj4DET+aBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T21:45:01.858399Z"},"content_sha256":"6239de9f1265e4f1da9cbb5d21f357efde6414eed5842bca42e31d458ad86c86","schema_version":"1.0","event_id":"sha256:6239de9f1265e4f1da9cbb5d21f357efde6414eed5842bca42e31d458ad86c86"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DFDYJCIDTV2QZC6NROTY3VRAXV/bundle.json","state_url":"https://pith.science/pith/DFDYJCIDTV2QZC6NROTY3VRAXV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DFDYJCIDTV2QZC6NROTY3VRAXV/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":"2026-06-02T21:45:01Z","links":{"resolver":"https://pith.science/pith/DFDYJCIDTV2QZC6NROTY3VRAXV","bundle":"https://pith.science/pith/DFDYJCIDTV2QZC6NROTY3VRAXV/bundle.json","state":"https://pith.science/pith/DFDYJCIDTV2QZC6NROTY3VRAXV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DFDYJCIDTV2QZC6NROTY3VRAXV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:DFDYJCIDTV2QZC6NROTY3VRAXV","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":"b9ee72b34f2d6df0d513e861e6f95f4f80009197548123934a9b7f2f09c7cf63","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-02-11T09:31:59Z","title_canon_sha256":"ddf13e2f642cb13ec28c4c13fc7bd53da7de4492f2c29055725b2798942bc4cd"},"schema_version":"1.0","source":{"id":"1302.2424","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.2424","created_at":"2026-05-18T03:16:18Z"},{"alias_kind":"arxiv_version","alias_value":"1302.2424v3","created_at":"2026-05-18T03:16:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.2424","created_at":"2026-05-18T03:16:18Z"},{"alias_kind":"pith_short_12","alias_value":"DFDYJCIDTV2Q","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"DFDYJCIDTV2QZC6N","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"DFDYJCID","created_at":"2026-05-18T12:27:43Z"}],"graph_snapshots":[{"event_id":"sha256:6239de9f1265e4f1da9cbb5d21f357efde6414eed5842bca42e31d458ad86c86","target":"graph","created_at":"2026-05-18T03:16:18Z","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":"A heliopause spectrum at 122 AU from the Sun is presented for galactic electrons over an energy range from 1 MeV to 50 GeV that can be considered the lowest possible local interstellar spectrum (LIS). The focus is on the spectral shape of the LIS below 1.0 GeV. The study is done by using a comprehensive numerical model for solar modulation in comparison with Voyager 1 observations at 110 AU from the Sun and PAMELA data at Earth. Below 1.0 GeV, this LIS exhibits a power law,E to the power -(1.55+-0.05), where E is the kinetic energy. However, reproducing the PAMELA electron spectrum averaged fo","authors_text":"M.S. Potgieter, R.R. Nndanganeni","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-02-11T09:31:59Z","title":"A local interstellar spectrum for galactic electrons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.2424","kind":"arxiv","version":3},"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":"sha256:8d24d36df6355a557240062ac06257c74fcbbcf4ac938443b3bac8a28c877304","target":"record","created_at":"2026-05-18T03:16:18Z","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":"b9ee72b34f2d6df0d513e861e6f95f4f80009197548123934a9b7f2f09c7cf63","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-02-11T09:31:59Z","title_canon_sha256":"ddf13e2f642cb13ec28c4c13fc7bd53da7de4492f2c29055725b2798942bc4cd"},"schema_version":"1.0","source":{"id":"1302.2424","kind":"arxiv","version":3}},"canonical_sha256":"19478489039d750c8bcd8ba78dd620bd7bae11350c9274400044eb10a7e6a80a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"19478489039d750c8bcd8ba78dd620bd7bae11350c9274400044eb10a7e6a80a","first_computed_at":"2026-05-18T03:16:18.994452Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:16:18.994452Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+RLT5pkB2Ty3aQBcIWS4bXVD5o9DPtIAgD37OkK9113AcsdhNzODgZhV7NPmJOyCrAYhymzJmWLEAglofzKzAw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:16:18.996823Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.2424","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8d24d36df6355a557240062ac06257c74fcbbcf4ac938443b3bac8a28c877304","sha256:6239de9f1265e4f1da9cbb5d21f357efde6414eed5842bca42e31d458ad86c86"],"state_sha256":"398a67dd0e103942e363e7a09504fb51ebaea3703db361ebcbf00eba78b340d8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KD9HOMpBkK318yxrckVEEE+rXIfkiNuuxSkfV18WFuteMdSPd8sMOVjgyxEvcDxb2WS+LnOlRLig7BvzygV/BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T21:45:01.860402Z","bundle_sha256":"83bc1dd24d48830250e6a6bab4fa1ae926039c36f7db974a09f312be1e98ed5a"}}