{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:FDNFQQMTLM5V7KFHULVPNROAQM","short_pith_number":"pith:FDNFQQMT","canonical_record":{"source":{"id":"1711.09823","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-11-27T16:49:04Z","cross_cats_sorted":[],"title_canon_sha256":"2f5eb6b0cef53cce827d4b9d71caf3d54fda41f73bcf9b68188f67d967421d46","abstract_canon_sha256":"2e24c900f326180de7543942fcb3493b056d43e34d13c35c62b6a3db32b662e9"},"schema_version":"1.0"},"canonical_sha256":"28da5841935b3b5fa8a7a2eaf6c5c08310e4193b01efbb893680ecdc7cfa4679","source":{"kind":"arxiv","id":"1711.09823","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.09823","created_at":"2026-05-18T00:29:34Z"},{"alias_kind":"arxiv_version","alias_value":"1711.09823v1","created_at":"2026-05-18T00:29:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.09823","created_at":"2026-05-18T00:29:34Z"},{"alias_kind":"pith_short_12","alias_value":"FDNFQQMTLM5V","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"FDNFQQMTLM5V7KFH","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"FDNFQQMT","created_at":"2026-05-18T12:31:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:FDNFQQMTLM5V7KFHULVPNROAQM","target":"record","payload":{"canonical_record":{"source":{"id":"1711.09823","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-11-27T16:49:04Z","cross_cats_sorted":[],"title_canon_sha256":"2f5eb6b0cef53cce827d4b9d71caf3d54fda41f73bcf9b68188f67d967421d46","abstract_canon_sha256":"2e24c900f326180de7543942fcb3493b056d43e34d13c35c62b6a3db32b662e9"},"schema_version":"1.0"},"canonical_sha256":"28da5841935b3b5fa8a7a2eaf6c5c08310e4193b01efbb893680ecdc7cfa4679","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:29:34.390968Z","signature_b64":"Oa/h4bD07viKsDdf22j2bhPA5U9tYVypc+8Ugw+y5m4x4n2YZAjXY0eCvQoRS6knc5HwSpWpv90CG0IBwgLGDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"28da5841935b3b5fa8a7a2eaf6c5c08310e4193b01efbb893680ecdc7cfa4679","last_reissued_at":"2026-05-18T00:29:34.390488Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:29:34.390488Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1711.09823","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":"2026-05-18T00:29:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PBEoy/YXDvGH0pPR9ACIENzhqtB9oLnhumqQkmRognfj0zu1fBgn+lgp0bm48a5t/hD7Fti/mc5utG+cLr47AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:11:00.860155Z"},"content_sha256":"dc1bd2370712ec48383c516af80a0ba162f3c4b74378e466207730fe347ff120","schema_version":"1.0","event_id":"sha256:dc1bd2370712ec48383c516af80a0ba162f3c4b74378e466207730fe347ff120"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:FDNFQQMTLM5V7KFHULVPNROAQM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Empirical Estimate of the Shape of the Upstream Heliopause from IBEX-Lo Helium Measurements: Preliminary Results","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Harald Kucharek, Jeewoo Park, Philip A. Isenberg","submitted_at":"2017-11-27T16:49:04Z","abstract_excerpt":"We present a simplified model of the outer heliosheath to help interpret the observations of interstellar neutral helium by the IBEX-Lo instruments. We assume that the measured particles are composed of the superposition of a primary beam population, with the properties of the local interstellar medium, and a secondary population, created by charge exchange between the primary beam neutrals and the ions that have been deflected as they approach the heliopause. We extract information on the large-scale shape of the heliopause by comparing the helium flux measured at IBEX along four different lo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.09823","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":"2026-05-18T00:29:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sgPSIHJATMHoDK82ArOJWW02pkWdAO60lyj1FEw42EMGwoWozg/qubmZwyf8lG1OAOxdtMHMjdM8yWlVqtn0DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:11:00.860521Z"},"content_sha256":"a35d3a0fb93188277ec93aca3e31013b238d8d17c8bb96a9faf57d2e547fd7ab","schema_version":"1.0","event_id":"sha256:a35d3a0fb93188277ec93aca3e31013b238d8d17c8bb96a9faf57d2e547fd7ab"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FDNFQQMTLM5V7KFHULVPNROAQM/bundle.json","state_url":"https://pith.science/pith/FDNFQQMTLM5V7KFHULVPNROAQM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FDNFQQMTLM5V7KFHULVPNROAQM/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":"2026-05-28T06:11:00Z","links":{"resolver":"https://pith.science/pith/FDNFQQMTLM5V7KFHULVPNROAQM","bundle":"https://pith.science/pith/FDNFQQMTLM5V7KFHULVPNROAQM/bundle.json","state":"https://pith.science/pith/FDNFQQMTLM5V7KFHULVPNROAQM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FDNFQQMTLM5V7KFHULVPNROAQM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:FDNFQQMTLM5V7KFHULVPNROAQM","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":"2e24c900f326180de7543942fcb3493b056d43e34d13c35c62b6a3db32b662e9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-11-27T16:49:04Z","title_canon_sha256":"2f5eb6b0cef53cce827d4b9d71caf3d54fda41f73bcf9b68188f67d967421d46"},"schema_version":"1.0","source":{"id":"1711.09823","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.09823","created_at":"2026-05-18T00:29:34Z"},{"alias_kind":"arxiv_version","alias_value":"1711.09823v1","created_at":"2026-05-18T00:29:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.09823","created_at":"2026-05-18T00:29:34Z"},{"alias_kind":"pith_short_12","alias_value":"FDNFQQMTLM5V","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"FDNFQQMTLM5V7KFH","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"FDNFQQMT","created_at":"2026-05-18T12:31:15Z"}],"graph_snapshots":[{"event_id":"sha256:a35d3a0fb93188277ec93aca3e31013b238d8d17c8bb96a9faf57d2e547fd7ab","target":"graph","created_at":"2026-05-18T00:29:34Z","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":"We present a simplified model of the outer heliosheath to help interpret the observations of interstellar neutral helium by the IBEX-Lo instruments. We assume that the measured particles are composed of the superposition of a primary beam population, with the properties of the local interstellar medium, and a secondary population, created by charge exchange between the primary beam neutrals and the ions that have been deflected as they approach the heliopause. We extract information on the large-scale shape of the heliopause by comparing the helium flux measured at IBEX along four different lo","authors_text":"Harald Kucharek, Jeewoo Park, Philip A. Isenberg","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-11-27T16:49:04Z","title":"Empirical Estimate of the Shape of the Upstream Heliopause from IBEX-Lo Helium Measurements: Preliminary Results"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.09823","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:dc1bd2370712ec48383c516af80a0ba162f3c4b74378e466207730fe347ff120","target":"record","created_at":"2026-05-18T00:29:34Z","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":"2e24c900f326180de7543942fcb3493b056d43e34d13c35c62b6a3db32b662e9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-11-27T16:49:04Z","title_canon_sha256":"2f5eb6b0cef53cce827d4b9d71caf3d54fda41f73bcf9b68188f67d967421d46"},"schema_version":"1.0","source":{"id":"1711.09823","kind":"arxiv","version":1}},"canonical_sha256":"28da5841935b3b5fa8a7a2eaf6c5c08310e4193b01efbb893680ecdc7cfa4679","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"28da5841935b3b5fa8a7a2eaf6c5c08310e4193b01efbb893680ecdc7cfa4679","first_computed_at":"2026-05-18T00:29:34.390488Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:29:34.390488Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Oa/h4bD07viKsDdf22j2bhPA5U9tYVypc+8Ugw+y5m4x4n2YZAjXY0eCvQoRS6knc5HwSpWpv90CG0IBwgLGDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:29:34.390968Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.09823","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dc1bd2370712ec48383c516af80a0ba162f3c4b74378e466207730fe347ff120","sha256:a35d3a0fb93188277ec93aca3e31013b238d8d17c8bb96a9faf57d2e547fd7ab"],"state_sha256":"64d7fc5daa150eb4b0adad6e8ed15e9718926c39ffd2fe6a8ab5319972aeb9e5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gJmAfqXHdUsid1LtbQk5mLtlxYnf5/+rbZOnXSjN6HciGiui1EOqecDC195f650M9LYfMFhZXVAjvW4K9Mz5CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T06:11:00.862534Z","bundle_sha256":"7374a891559d4d2229c1f87298811f319184ce4ec45d5196595531f8febb488d"}}