{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:4X56PTBAMMSNNWUVMXKIXNODGN","short_pith_number":"pith:4X56PTBA","canonical_record":{"source":{"id":"1805.03406","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-05-09T08:20:52Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"fdba0b62a651ea223648450d1b13c6580b157387898d102a47940615023d89cf","abstract_canon_sha256":"0a5cf8629d00c20a0b02049c828c8656a09e4987f6572d6d2467c525c215b917"},"schema_version":"1.0"},"canonical_sha256":"e5fbe7cc206324d6da9565d48bb5c33360772c4356f850a67f1a11c0227524af","source":{"kind":"arxiv","id":"1805.03406","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.03406","created_at":"2026-05-17T23:55:14Z"},{"alias_kind":"arxiv_version","alias_value":"1805.03406v2","created_at":"2026-05-17T23:55:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.03406","created_at":"2026-05-17T23:55:14Z"},{"alias_kind":"pith_short_12","alias_value":"4X56PTBAMMSN","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"4X56PTBAMMSNNWUV","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"4X56PTBA","created_at":"2026-05-18T12:32:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:4X56PTBAMMSNNWUVMXKIXNODGN","target":"record","payload":{"canonical_record":{"source":{"id":"1805.03406","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-05-09T08:20:52Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"fdba0b62a651ea223648450d1b13c6580b157387898d102a47940615023d89cf","abstract_canon_sha256":"0a5cf8629d00c20a0b02049c828c8656a09e4987f6572d6d2467c525c215b917"},"schema_version":"1.0"},"canonical_sha256":"e5fbe7cc206324d6da9565d48bb5c33360772c4356f850a67f1a11c0227524af","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:14.649207Z","signature_b64":"L1PAWeiVYMrkUNJPNSz4LJvqiSb6YwMITq4oXlYVtmoHZ7h+b26AbniijV+CfnReBvTJ0qZRsO0Di9aZ4mn5DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e5fbe7cc206324d6da9565d48bb5c33360772c4356f850a67f1a11c0227524af","last_reissued_at":"2026-05-17T23:55:14.648799Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:14.648799Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.03406","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":"2026-05-17T23:55:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0pT16RidZZjrF63kmHznShvj24CgEv2Jxet5fPdEV1DzgqQe9T7k4u/aOj+1CRJhwYx/zYaXmrWPWLXG+3SiCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T03:14:06.331591Z"},"content_sha256":"ad88aaf8e8a47f6f4b1a5d7808c49dfc5cd9bd941562da20e1062250f73326f4","schema_version":"1.0","event_id":"sha256:ad88aaf8e8a47f6f4b1a5d7808c49dfc5cd9bd941562da20e1062250f73326f4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:4X56PTBAMMSNNWUVMXKIXNODGN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gamma-ray Production in the Extended Halo of the Galaxy and Possible Implications for the Origin of Galactic Cosmic Rays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.HE","authors_text":"Hui Li, Huirong Yan, Ruo-Yu Liu, Shi Shao, Xiang-Yu Wang","submitted_at":"2018-05-09T08:20:52Z","abstract_excerpt":"Various studies have implied the existence of a gaseous halo around the Galaxy extending out to 100 kpc. Galactic cosmic rays (CRs) that propagate to the halo, either by diffusion or by convection with the possibly existing large-scale Galactic wind, can interact with the gas therein and produce gamma-rays via proton-proton collision. We calculate the cosmic ray distribution in the halo and the gamma-ray flux, and explore the dependence of the result on model parameters such as diffusion coefficient, CR luminosity, CR spectral index. We find that the current measurement of isotropic gamma-ray "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.03406","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":"2026-05-17T23:55:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D992zKRr+vy65daqJ2d/oJ+SLqxhGAs9AZMLip1u0/8/80N54iuhmD1+37388Bpy21dEUa5+gOa2VijOeuBbDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T03:14:06.332245Z"},"content_sha256":"a682e54bc4677baafdfb62eb0007382e0743b51e3938ea75d3f44b8a8c7ea9b7","schema_version":"1.0","event_id":"sha256:a682e54bc4677baafdfb62eb0007382e0743b51e3938ea75d3f44b8a8c7ea9b7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4X56PTBAMMSNNWUVMXKIXNODGN/bundle.json","state_url":"https://pith.science/pith/4X56PTBAMMSNNWUVMXKIXNODGN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4X56PTBAMMSNNWUVMXKIXNODGN/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":"2026-05-31T03:14:06Z","links":{"resolver":"https://pith.science/pith/4X56PTBAMMSNNWUVMXKIXNODGN","bundle":"https://pith.science/pith/4X56PTBAMMSNNWUVMXKIXNODGN/bundle.json","state":"https://pith.science/pith/4X56PTBAMMSNNWUVMXKIXNODGN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4X56PTBAMMSNNWUVMXKIXNODGN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:4X56PTBAMMSNNWUVMXKIXNODGN","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":"0a5cf8629d00c20a0b02049c828c8656a09e4987f6572d6d2467c525c215b917","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-05-09T08:20:52Z","title_canon_sha256":"fdba0b62a651ea223648450d1b13c6580b157387898d102a47940615023d89cf"},"schema_version":"1.0","source":{"id":"1805.03406","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.03406","created_at":"2026-05-17T23:55:14Z"},{"alias_kind":"arxiv_version","alias_value":"1805.03406v2","created_at":"2026-05-17T23:55:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.03406","created_at":"2026-05-17T23:55:14Z"},{"alias_kind":"pith_short_12","alias_value":"4X56PTBAMMSN","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"4X56PTBAMMSNNWUV","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"4X56PTBA","created_at":"2026-05-18T12:32:05Z"}],"graph_snapshots":[{"event_id":"sha256:a682e54bc4677baafdfb62eb0007382e0743b51e3938ea75d3f44b8a8c7ea9b7","target":"graph","created_at":"2026-05-17T23:55:14Z","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":"Various studies have implied the existence of a gaseous halo around the Galaxy extending out to 100 kpc. Galactic cosmic rays (CRs) that propagate to the halo, either by diffusion or by convection with the possibly existing large-scale Galactic wind, can interact with the gas therein and produce gamma-rays via proton-proton collision. We calculate the cosmic ray distribution in the halo and the gamma-ray flux, and explore the dependence of the result on model parameters such as diffusion coefficient, CR luminosity, CR spectral index. We find that the current measurement of isotropic gamma-ray ","authors_text":"Hui Li, Huirong Yan, Ruo-Yu Liu, Shi Shao, Xiang-Yu Wang","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-05-09T08:20:52Z","title":"Gamma-ray Production in the Extended Halo of the Galaxy and Possible Implications for the Origin of Galactic Cosmic Rays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.03406","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:ad88aaf8e8a47f6f4b1a5d7808c49dfc5cd9bd941562da20e1062250f73326f4","target":"record","created_at":"2026-05-17T23:55:14Z","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":"0a5cf8629d00c20a0b02049c828c8656a09e4987f6572d6d2467c525c215b917","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-05-09T08:20:52Z","title_canon_sha256":"fdba0b62a651ea223648450d1b13c6580b157387898d102a47940615023d89cf"},"schema_version":"1.0","source":{"id":"1805.03406","kind":"arxiv","version":2}},"canonical_sha256":"e5fbe7cc206324d6da9565d48bb5c33360772c4356f850a67f1a11c0227524af","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e5fbe7cc206324d6da9565d48bb5c33360772c4356f850a67f1a11c0227524af","first_computed_at":"2026-05-17T23:55:14.648799Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:14.648799Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"L1PAWeiVYMrkUNJPNSz4LJvqiSb6YwMITq4oXlYVtmoHZ7h+b26AbniijV+CfnReBvTJ0qZRsO0Di9aZ4mn5DA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:14.649207Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.03406","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ad88aaf8e8a47f6f4b1a5d7808c49dfc5cd9bd941562da20e1062250f73326f4","sha256:a682e54bc4677baafdfb62eb0007382e0743b51e3938ea75d3f44b8a8c7ea9b7"],"state_sha256":"728527000be10eac51a498fd51104f1875a91ed2a200e3b32e2b79aa46a6db56"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d2ArxV+Wb6RlxKz5j1XKv6FfWrnuIRlZixTc0S3OO85CVIwSAjqPOSZgOHQIV3Q/TL3jQbmryUXBRJt+5/pSBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T03:14:06.335372Z","bundle_sha256":"07796a4a452d6f837502fd434bcd6d2c6ebb129bf6f085a3778e07a3f5466fcd"}}