{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:5J5FX4BV5Q42TX6G755HIVIPPE","short_pith_number":"pith:5J5FX4BV","canonical_record":{"source":{"id":"1612.01579","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-12-05T22:31:31Z","cross_cats_sorted":[],"title_canon_sha256":"3239c6626b0e2432488524156583349056897dec35a08993018206434a31e187","abstract_canon_sha256":"3ee1f2894565af32a5432080467e1332e977a840dc587b2749f297c86fac544c"},"schema_version":"1.0"},"canonical_sha256":"ea7a5bf035ec39a9dfc6ff7a74550f791205bd8ed97827694db15d26cb8778d6","source":{"kind":"arxiv","id":"1612.01579","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.01579","created_at":"2026-05-18T00:51:41Z"},{"alias_kind":"arxiv_version","alias_value":"1612.01579v1","created_at":"2026-05-18T00:51:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.01579","created_at":"2026-05-18T00:51:41Z"},{"alias_kind":"pith_short_12","alias_value":"5J5FX4BV5Q42","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_16","alias_value":"5J5FX4BV5Q42TX6G","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_8","alias_value":"5J5FX4BV","created_at":"2026-05-18T12:30:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:5J5FX4BV5Q42TX6G755HIVIPPE","target":"record","payload":{"canonical_record":{"source":{"id":"1612.01579","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-12-05T22:31:31Z","cross_cats_sorted":[],"title_canon_sha256":"3239c6626b0e2432488524156583349056897dec35a08993018206434a31e187","abstract_canon_sha256":"3ee1f2894565af32a5432080467e1332e977a840dc587b2749f297c86fac544c"},"schema_version":"1.0"},"canonical_sha256":"ea7a5bf035ec39a9dfc6ff7a74550f791205bd8ed97827694db15d26cb8778d6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:51:41.758393Z","signature_b64":"l2VuODEbCKrPKxbDlbmCDVoMbCZ5Qag88MIpoqYtGeU50TlbA+66bGw379OEKN8TE49VXf7jjKDgXxqyXElkBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ea7a5bf035ec39a9dfc6ff7a74550f791205bd8ed97827694db15d26cb8778d6","last_reissued_at":"2026-05-18T00:51:41.757863Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:51:41.757863Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1612.01579","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":"2026-05-18T00:51:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JzVVh16katDy8d8ajH/VjGlfqzuXaiScVm3hRXroDIjW0fxLqVRi2+zV0pMGLfNYjgpKHRMquatcA0sbDV+HAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T17:45:43.472367Z"},"content_sha256":"207ef5be133998b864f54cd4c83707a5f4a3d1df143de2fd6754aca22d8d3b34","schema_version":"1.0","event_id":"sha256:207ef5be133998b864f54cd4c83707a5f4a3d1df143de2fd6754aca22d8d3b34"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:5J5FX4BV5Q42TX6G755HIVIPPE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Stability of sulphur dimers S2 in cometary ices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Luspay-Kuti, A. Markovits, F. Pauzat, J. I. Lunine, O. Mousis, O. Ozgurel, T. Ronnet, Y. Ellinger","submitted_at":"2016-12-05T22:31:31Z","abstract_excerpt":"S2 has been observed for decades in comets, including comet 67P/Churyumov-Gerasimenko. Despite the fact that this molecule appears ubiquitous in these bodies, the nature of its source remains unknown. In this study, we assume that S2 is formed by irradiation (photolysis and/or radiolysis) of S-bearing molecules embedded in the icy grain precursors of comets, and that the cosmic ray flux simultaneously creates voids in ices within which the produced molecules can accumulate. We investigate the stability of S2 molecules in such cavities, assuming that the surrounding ice is made of H2S or H2O. W"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.01579","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":"2026-05-18T00:51:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2dRmjNdx0s72C0W6n1EhQbvG2qjybTwZWgOxn5jK0rL0qL7Mn8zQvLfX6Y5r0u1xPmfPS1z300BuUPds2d/JCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T17:45:43.472974Z"},"content_sha256":"7f6829709568a558fe84e6bd5320120b706ee6c1ccfe814609425d75ed3baea2","schema_version":"1.0","event_id":"sha256:7f6829709568a558fe84e6bd5320120b706ee6c1ccfe814609425d75ed3baea2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5J5FX4BV5Q42TX6G755HIVIPPE/bundle.json","state_url":"https://pith.science/pith/5J5FX4BV5Q42TX6G755HIVIPPE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5J5FX4BV5Q42TX6G755HIVIPPE/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":"2026-05-24T17:45:43Z","links":{"resolver":"https://pith.science/pith/5J5FX4BV5Q42TX6G755HIVIPPE","bundle":"https://pith.science/pith/5J5FX4BV5Q42TX6G755HIVIPPE/bundle.json","state":"https://pith.science/pith/5J5FX4BV5Q42TX6G755HIVIPPE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5J5FX4BV5Q42TX6G755HIVIPPE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:5J5FX4BV5Q42TX6G755HIVIPPE","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":"3ee1f2894565af32a5432080467e1332e977a840dc587b2749f297c86fac544c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-12-05T22:31:31Z","title_canon_sha256":"3239c6626b0e2432488524156583349056897dec35a08993018206434a31e187"},"schema_version":"1.0","source":{"id":"1612.01579","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.01579","created_at":"2026-05-18T00:51:41Z"},{"alias_kind":"arxiv_version","alias_value":"1612.01579v1","created_at":"2026-05-18T00:51:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.01579","created_at":"2026-05-18T00:51:41Z"},{"alias_kind":"pith_short_12","alias_value":"5J5FX4BV5Q42","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_16","alias_value":"5J5FX4BV5Q42TX6G","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_8","alias_value":"5J5FX4BV","created_at":"2026-05-18T12:30:01Z"}],"graph_snapshots":[{"event_id":"sha256:7f6829709568a558fe84e6bd5320120b706ee6c1ccfe814609425d75ed3baea2","target":"graph","created_at":"2026-05-18T00:51:41Z","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":"S2 has been observed for decades in comets, including comet 67P/Churyumov-Gerasimenko. Despite the fact that this molecule appears ubiquitous in these bodies, the nature of its source remains unknown. In this study, we assume that S2 is formed by irradiation (photolysis and/or radiolysis) of S-bearing molecules embedded in the icy grain precursors of comets, and that the cosmic ray flux simultaneously creates voids in ices within which the produced molecules can accumulate. We investigate the stability of S2 molecules in such cavities, assuming that the surrounding ice is made of H2S or H2O. W","authors_text":"A. Luspay-Kuti, A. Markovits, F. Pauzat, J. I. Lunine, O. Mousis, O. Ozgurel, T. Ronnet, Y. Ellinger","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-12-05T22:31:31Z","title":"Stability of sulphur dimers S2 in cometary ices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.01579","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":"sha256:207ef5be133998b864f54cd4c83707a5f4a3d1df143de2fd6754aca22d8d3b34","target":"record","created_at":"2026-05-18T00:51:41Z","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":"3ee1f2894565af32a5432080467e1332e977a840dc587b2749f297c86fac544c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-12-05T22:31:31Z","title_canon_sha256":"3239c6626b0e2432488524156583349056897dec35a08993018206434a31e187"},"schema_version":"1.0","source":{"id":"1612.01579","kind":"arxiv","version":1}},"canonical_sha256":"ea7a5bf035ec39a9dfc6ff7a74550f791205bd8ed97827694db15d26cb8778d6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea7a5bf035ec39a9dfc6ff7a74550f791205bd8ed97827694db15d26cb8778d6","first_computed_at":"2026-05-18T00:51:41.757863Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:51:41.757863Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"l2VuODEbCKrPKxbDlbmCDVoMbCZ5Qag88MIpoqYtGeU50TlbA+66bGw379OEKN8TE49VXf7jjKDgXxqyXElkBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:51:41.758393Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.01579","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:207ef5be133998b864f54cd4c83707a5f4a3d1df143de2fd6754aca22d8d3b34","sha256:7f6829709568a558fe84e6bd5320120b706ee6c1ccfe814609425d75ed3baea2"],"state_sha256":"33da7b714dd940e8e5e5b07c1ef9e5f748ff8b4715071157abbf4e8ea324b59c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P3uHtY8LauulGXuKyY8YAL61dKDTeFNxtpVN4ZX0jqFamNBv/9knYcpuRNWWAObLMyHYls36JmbpB435J4F6CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-24T17:45:43.476251Z","bundle_sha256":"835a646386c6e135c4669a9cd58abfe713744e8e3506caaba57995beb552088f"}}