{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:WCERNWX3I7NSYYG5YQJSCGZRO3","short_pith_number":"pith:WCERNWX3","canonical_record":{"source":{"id":"physics/0610030","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2006-10-05T19:06:52Z","cross_cats_sorted":["physics.gen-ph"],"title_canon_sha256":"ea145d024b7dae1e5630372a986efb8d2adab065b7204ddd89e7221a27d4bc62","abstract_canon_sha256":"1fcc4410997036b08e4a7741c211ecc8a7bfec888af44986019744648a169489"},"schema_version":"1.0"},"canonical_sha256":"b08916dafb47db2c60ddc413211b3176e5f6619f7c0c6e0709d64ac6b9f33962","source":{"kind":"arxiv","id":"physics/0610030","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0610030","created_at":"2026-07-04T15:13:50Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0610030v2","created_at":"2026-07-04T15:13:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0610030","created_at":"2026-07-04T15:13:50Z"},{"alias_kind":"pith_short_12","alias_value":"WCERNWX3I7NS","created_at":"2026-07-04T15:13:50Z"},{"alias_kind":"pith_short_16","alias_value":"WCERNWX3I7NSYYG5","created_at":"2026-07-04T15:13:50Z"},{"alias_kind":"pith_short_8","alias_value":"WCERNWX3","created_at":"2026-07-04T15:13:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:WCERNWX3I7NSYYG5YQJSCGZRO3","target":"record","payload":{"canonical_record":{"source":{"id":"physics/0610030","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2006-10-05T19:06:52Z","cross_cats_sorted":["physics.gen-ph"],"title_canon_sha256":"ea145d024b7dae1e5630372a986efb8d2adab065b7204ddd89e7221a27d4bc62","abstract_canon_sha256":"1fcc4410997036b08e4a7741c211ecc8a7bfec888af44986019744648a169489"},"schema_version":"1.0"},"canonical_sha256":"b08916dafb47db2c60ddc413211b3176e5f6619f7c0c6e0709d64ac6b9f33962","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:13:50.158887Z","signature_b64":"tW4VwEZoBRfqoGAqvhV5UWu5XAVAiHN1his3jaLAby0xtbha4x3lChkEyGjeatq7E7g4s5RwqNUJ1sK+svHKAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b08916dafb47db2c60ddc413211b3176e5f6619f7c0c6e0709d64ac6b9f33962","last_reissued_at":"2026-07-04T15:13:50.158435Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:13:50.158435Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"physics/0610030","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":"2026-07-04T15:13:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BIfks4s/YEGrGk1s3jHogm5IE/DJSmOGVJN3J5+xqObCu+leBk4/AxBmS9bUedyhkI3xpgCPuxAL2V7HqicGAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T17:32:32.230351Z"},"content_sha256":"9b1a34c558cf6271d3788831915cb224b0eb3cd4ddc6f27eaac9706c0226220a","schema_version":"1.0","event_id":"sha256:9b1a34c558cf6271d3788831915cb224b0eb3cd4ddc6f27eaac9706c0226220a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:WCERNWX3I7NSYYG5YQJSCGZRO3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Radiation Hazard of Relativistic Interstellar Flight","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.gen-ph"],"primary_cat":"physics.space-ph","authors_text":"Oleg G. Semyonov","submitted_at":"2006-10-05T19:06:52Z","abstract_excerpt":"From the point of view of radiation safety, interstellar space is not an empty void. Interstellar gas and cosmic rays, which consist of hydrogen and helium nucleons, present a severe radiation hazard to crew and electronics aboard a relativistic interstellar ship. Of the two, the oncoming relativistic flow of interstellar gas produces the most intence radiation. A protection shield will be needed to block relativistic interstellar gas that can also absorb most of the cosmic rays which, as a result of relativistic aberration, form into a beamed flow propagating toward the front of the ship."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0610030","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/physics/0610030/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":"2026-07-04T15:13:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d9OmxbgKudF6odHCe3RjwFiA35tjvgC3FPVwjryAnNSYXQSLbwC/t9g5ZDTDqD8W5lsBelkmsE1jZ/q7oe3VCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T17:32:32.231139Z"},"content_sha256":"4fe0a26075c8f4300d8802e211f2f5fe48be6e1607e5aaa8e645c4f4b89eae56","schema_version":"1.0","event_id":"sha256:4fe0a26075c8f4300d8802e211f2f5fe48be6e1607e5aaa8e645c4f4b89eae56"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WCERNWX3I7NSYYG5YQJSCGZRO3/bundle.json","state_url":"https://pith.science/pith/WCERNWX3I7NSYYG5YQJSCGZRO3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WCERNWX3I7NSYYG5YQJSCGZRO3/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":"2026-08-12T17:32:32Z","links":{"resolver":"https://pith.science/pith/WCERNWX3I7NSYYG5YQJSCGZRO3","bundle":"https://pith.science/pith/WCERNWX3I7NSYYG5YQJSCGZRO3/bundle.json","state":"https://pith.science/pith/WCERNWX3I7NSYYG5YQJSCGZRO3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WCERNWX3I7NSYYG5YQJSCGZRO3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:WCERNWX3I7NSYYG5YQJSCGZRO3","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":"1fcc4410997036b08e4a7741c211ecc8a7bfec888af44986019744648a169489","cross_cats_sorted":["physics.gen-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2006-10-05T19:06:52Z","title_canon_sha256":"ea145d024b7dae1e5630372a986efb8d2adab065b7204ddd89e7221a27d4bc62"},"schema_version":"1.0","source":{"id":"physics/0610030","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0610030","created_at":"2026-07-04T15:13:50Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0610030v2","created_at":"2026-07-04T15:13:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0610030","created_at":"2026-07-04T15:13:50Z"},{"alias_kind":"pith_short_12","alias_value":"WCERNWX3I7NS","created_at":"2026-07-04T15:13:50Z"},{"alias_kind":"pith_short_16","alias_value":"WCERNWX3I7NSYYG5","created_at":"2026-07-04T15:13:50Z"},{"alias_kind":"pith_short_8","alias_value":"WCERNWX3","created_at":"2026-07-04T15:13:50Z"}],"graph_snapshots":[{"event_id":"sha256:4fe0a26075c8f4300d8802e211f2f5fe48be6e1607e5aaa8e645c4f4b89eae56","target":"graph","created_at":"2026-07-04T15:13:50Z","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/physics/0610030/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"From the point of view of radiation safety, interstellar space is not an empty void. Interstellar gas and cosmic rays, which consist of hydrogen and helium nucleons, present a severe radiation hazard to crew and electronics aboard a relativistic interstellar ship. Of the two, the oncoming relativistic flow of interstellar gas produces the most intence radiation. A protection shield will be needed to block relativistic interstellar gas that can also absorb most of the cosmic rays which, as a result of relativistic aberration, form into a beamed flow propagating toward the front of the ship.","authors_text":"Oleg G. Semyonov","cross_cats":["physics.gen-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2006-10-05T19:06:52Z","title":"Radiation Hazard of Relativistic Interstellar Flight"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0610030","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":"sha256:9b1a34c558cf6271d3788831915cb224b0eb3cd4ddc6f27eaac9706c0226220a","target":"record","created_at":"2026-07-04T15:13:50Z","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":"1fcc4410997036b08e4a7741c211ecc8a7bfec888af44986019744648a169489","cross_cats_sorted":["physics.gen-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2006-10-05T19:06:52Z","title_canon_sha256":"ea145d024b7dae1e5630372a986efb8d2adab065b7204ddd89e7221a27d4bc62"},"schema_version":"1.0","source":{"id":"physics/0610030","kind":"arxiv","version":2}},"canonical_sha256":"b08916dafb47db2c60ddc413211b3176e5f6619f7c0c6e0709d64ac6b9f33962","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b08916dafb47db2c60ddc413211b3176e5f6619f7c0c6e0709d64ac6b9f33962","first_computed_at":"2026-07-04T15:13:50.158435Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:13:50.158435Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tW4VwEZoBRfqoGAqvhV5UWu5XAVAiHN1his3jaLAby0xtbha4x3lChkEyGjeatq7E7g4s5RwqNUJ1sK+svHKAQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:13:50.158887Z","signed_message":"canonical_sha256_bytes"},"source_id":"physics/0610030","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9b1a34c558cf6271d3788831915cb224b0eb3cd4ddc6f27eaac9706c0226220a","sha256:4fe0a26075c8f4300d8802e211f2f5fe48be6e1607e5aaa8e645c4f4b89eae56"],"state_sha256":"0d13d73b97f3ac9a42d9c207c2dc2555ca540bb6a62d94a1ba12caf6c7517f71"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g501uk+sKKFonQw4flU3LMM9/4W+CsLJxJSDLiM6a11DssZ5bO9oZodNn806zwHBwfTVEiewP+64M1M9UgqzAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T17:32:32.239809Z","bundle_sha256":"2094d8582106cf27baff38dbaa94d48a90e9c4ec00baf91f55492810509fd9c9"}}