{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:6VNIFGPYVRLQAYACIAX47XOMRI","short_pith_number":"pith:6VNIFGPY","canonical_record":{"source":{"id":"1907.07575","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-07-17T15:21:10Z","cross_cats_sorted":[],"title_canon_sha256":"5037c167735fbf8f8f669f75f4b70122aa09b8931d75ee2b31c92aba7ce19731","abstract_canon_sha256":"89c9bdd272ca0ccbe26bf511469984c096db2663b8ad6d214246821d15fe25e9"},"schema_version":"1.0"},"canonical_sha256":"f55a8299f8ac57006002402fcfddcc8a003a817e98072aff22aad69db5ee49da","source":{"kind":"arxiv","id":"1907.07575","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.07575","created_at":"2026-05-17T23:40:21Z"},{"alias_kind":"arxiv_version","alias_value":"1907.07575v1","created_at":"2026-05-17T23:40:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.07575","created_at":"2026-05-17T23:40:21Z"},{"alias_kind":"pith_short_12","alias_value":"6VNIFGPYVRLQ","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"6VNIFGPYVRLQAYAC","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"6VNIFGPY","created_at":"2026-05-18T12:33:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:6VNIFGPYVRLQAYACIAX47XOMRI","target":"record","payload":{"canonical_record":{"source":{"id":"1907.07575","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-07-17T15:21:10Z","cross_cats_sorted":[],"title_canon_sha256":"5037c167735fbf8f8f669f75f4b70122aa09b8931d75ee2b31c92aba7ce19731","abstract_canon_sha256":"89c9bdd272ca0ccbe26bf511469984c096db2663b8ad6d214246821d15fe25e9"},"schema_version":"1.0"},"canonical_sha256":"f55a8299f8ac57006002402fcfddcc8a003a817e98072aff22aad69db5ee49da","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:21.686664Z","signature_b64":"LbdYMjaHFERSyKYkhkvqlv8CkieIvkZ4LgM+IouqeolKrmsOs5VXthWCTh3xvFuz7NwxbVdQPDbo7kIIOO4KBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f55a8299f8ac57006002402fcfddcc8a003a817e98072aff22aad69db5ee49da","last_reissued_at":"2026-05-17T23:40:21.686205Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:21.686205Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.07575","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":"2026-05-17T23:40:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rSL331U+WrNM4mxC64tudoOH9qYK+epo2vuO0YUmuFqGLmkrZOEYGGNrU3D9Dz1NSH0wRpePUMMIcStKZOyMCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T17:19:54.312783Z"},"content_sha256":"563aaeb177f70816183a629813491ccef1d4e389b9ac220c24b1521a6a64274a","schema_version":"1.0","event_id":"sha256:563aaeb177f70816183a629813491ccef1d4e389b9ac220c24b1521a6a64274a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:6VNIFGPYVRLQAYACIAX47XOMRI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Assessment of the probability of microbial contamination for sample return from Martian moons I: Departure of microbes from Martian surface","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Akihiko Yamagishi, Hidenori Genda, Kazuhisa Fujita, Kosuke Kurosawa, Ryuki Hyodo, Shingo Matsuyama, Takafumi Niihara, Takashi Mikouchi","submitted_at":"2019-07-17T15:21:10Z","abstract_excerpt":"Potential microbial contamination of Martian moons, Phobos and Deimos, which can be brought about by transportation of Mars ejecta produced by meteoroid impacts on the Martian surface, has been comprehensively assessed in a statistical approach, based on the most probable history of recent major gigantic meteoroid collisions on the Martian surface. This article is the first part of our study to assess potential microbial density in Mars ejecta departing from the Martian atmosphere, as a source of the second part where statistical analysis of microbial contamination probability is conducted. Po"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.07575","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":"2026-05-17T23:40:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JC6D9X+33tF4FEjvS/70NvNzQN8vZ6VV9CtESuGTIqaeEplc7yq4GYsu8QRbm7o0eg08r4t3ZVupnMHHa445Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T17:19:54.313526Z"},"content_sha256":"8294a1125ca8a7e68153c6b7c08e278a86f0fa808410fe95d29ff0aaac774f02","schema_version":"1.0","event_id":"sha256:8294a1125ca8a7e68153c6b7c08e278a86f0fa808410fe95d29ff0aaac774f02"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6VNIFGPYVRLQAYACIAX47XOMRI/bundle.json","state_url":"https://pith.science/pith/6VNIFGPYVRLQAYACIAX47XOMRI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6VNIFGPYVRLQAYACIAX47XOMRI/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":"2026-06-07T17:19:54Z","links":{"resolver":"https://pith.science/pith/6VNIFGPYVRLQAYACIAX47XOMRI","bundle":"https://pith.science/pith/6VNIFGPYVRLQAYACIAX47XOMRI/bundle.json","state":"https://pith.science/pith/6VNIFGPYVRLQAYACIAX47XOMRI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6VNIFGPYVRLQAYACIAX47XOMRI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:6VNIFGPYVRLQAYACIAX47XOMRI","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":"89c9bdd272ca0ccbe26bf511469984c096db2663b8ad6d214246821d15fe25e9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-07-17T15:21:10Z","title_canon_sha256":"5037c167735fbf8f8f669f75f4b70122aa09b8931d75ee2b31c92aba7ce19731"},"schema_version":"1.0","source":{"id":"1907.07575","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.07575","created_at":"2026-05-17T23:40:21Z"},{"alias_kind":"arxiv_version","alias_value":"1907.07575v1","created_at":"2026-05-17T23:40:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.07575","created_at":"2026-05-17T23:40:21Z"},{"alias_kind":"pith_short_12","alias_value":"6VNIFGPYVRLQ","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"6VNIFGPYVRLQAYAC","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"6VNIFGPY","created_at":"2026-05-18T12:33:10Z"}],"graph_snapshots":[{"event_id":"sha256:8294a1125ca8a7e68153c6b7c08e278a86f0fa808410fe95d29ff0aaac774f02","target":"graph","created_at":"2026-05-17T23:40:21Z","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":"Potential microbial contamination of Martian moons, Phobos and Deimos, which can be brought about by transportation of Mars ejecta produced by meteoroid impacts on the Martian surface, has been comprehensively assessed in a statistical approach, based on the most probable history of recent major gigantic meteoroid collisions on the Martian surface. This article is the first part of our study to assess potential microbial density in Mars ejecta departing from the Martian atmosphere, as a source of the second part where statistical analysis of microbial contamination probability is conducted. Po","authors_text":"Akihiko Yamagishi, Hidenori Genda, Kazuhisa Fujita, Kosuke Kurosawa, Ryuki Hyodo, Shingo Matsuyama, Takafumi Niihara, Takashi Mikouchi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-07-17T15:21:10Z","title":"Assessment of the probability of microbial contamination for sample return from Martian moons I: Departure of microbes from Martian surface"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.07575","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":"sha256:563aaeb177f70816183a629813491ccef1d4e389b9ac220c24b1521a6a64274a","target":"record","created_at":"2026-05-17T23:40:21Z","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":"89c9bdd272ca0ccbe26bf511469984c096db2663b8ad6d214246821d15fe25e9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-07-17T15:21:10Z","title_canon_sha256":"5037c167735fbf8f8f669f75f4b70122aa09b8931d75ee2b31c92aba7ce19731"},"schema_version":"1.0","source":{"id":"1907.07575","kind":"arxiv","version":1}},"canonical_sha256":"f55a8299f8ac57006002402fcfddcc8a003a817e98072aff22aad69db5ee49da","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f55a8299f8ac57006002402fcfddcc8a003a817e98072aff22aad69db5ee49da","first_computed_at":"2026-05-17T23:40:21.686205Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:21.686205Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LbdYMjaHFERSyKYkhkvqlv8CkieIvkZ4LgM+IouqeolKrmsOs5VXthWCTh3xvFuz7NwxbVdQPDbo7kIIOO4KBQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:21.686664Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.07575","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:563aaeb177f70816183a629813491ccef1d4e389b9ac220c24b1521a6a64274a","sha256:8294a1125ca8a7e68153c6b7c08e278a86f0fa808410fe95d29ff0aaac774f02"],"state_sha256":"9c8302241f5802114f75637552181c5b58b8844c119184f7a3c9d1370691e60c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qfuSVzDYd95YQ7RjbWl7qpuclL1lU9iWzZH54ILOCp3C+R6pZlM6qoGCNnBTjMQneAztTSrSqoVWmZ86ZasrDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T17:19:54.317399Z","bundle_sha256":"a3e6cc13d8b96ffd3ff0544bef141a907341482f85e8059bba5717c2139df70a"}}