{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:OL3AH4RQCBQ5SSUXTTRMUHS5PM","short_pith_number":"pith:OL3AH4RQ","canonical_record":{"source":{"id":"1812.07436","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-18T15:35:48Z","cross_cats_sorted":[],"title_canon_sha256":"b8503d0dd1948351bfd989862902a4d0dd1ab3aec2165f7c32cfbfd78685a596","abstract_canon_sha256":"54462275778d2260cd5667dcd7246579cd7bfb32f9aed9de80a928bc2a1e8fb8"},"schema_version":"1.0"},"canonical_sha256":"72f603f2301061d94a979ce2ca1e5d7b0d2bc8693bf701628a3219c24fad3b98","source":{"kind":"arxiv","id":"1812.07436","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.07436","created_at":"2026-05-17T23:58:00Z"},{"alias_kind":"arxiv_version","alias_value":"1812.07436v1","created_at":"2026-05-17T23:58:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.07436","created_at":"2026-05-17T23:58:00Z"},{"alias_kind":"pith_short_12","alias_value":"OL3AH4RQCBQ5","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_16","alias_value":"OL3AH4RQCBQ5SSUX","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_8","alias_value":"OL3AH4RQ","created_at":"2026-05-18T12:32:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:OL3AH4RQCBQ5SSUXTTRMUHS5PM","target":"record","payload":{"canonical_record":{"source":{"id":"1812.07436","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-18T15:35:48Z","cross_cats_sorted":[],"title_canon_sha256":"b8503d0dd1948351bfd989862902a4d0dd1ab3aec2165f7c32cfbfd78685a596","abstract_canon_sha256":"54462275778d2260cd5667dcd7246579cd7bfb32f9aed9de80a928bc2a1e8fb8"},"schema_version":"1.0"},"canonical_sha256":"72f603f2301061d94a979ce2ca1e5d7b0d2bc8693bf701628a3219c24fad3b98","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:58:00.519511Z","signature_b64":"D8Nas6hhPPltyoncL2Ml3V6hl5ZtOnKFD4V8M2O6Cyzuwni++PF67xDK/VMpXyeQpZ4jlsK8JZGVEEwnxU6xBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"72f603f2301061d94a979ce2ca1e5d7b0d2bc8693bf701628a3219c24fad3b98","last_reissued_at":"2026-05-17T23:58:00.518891Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:58:00.518891Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.07436","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":"2026-05-17T23:58:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MNclrqTup5RzejkY5wzY/xpUC+3ucOPROH+WrluVxBf/fBTXsI4LQ33IBfi6QXFbHnG/q/pMWYXkN5hAp3plBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T00:27:21.115215Z"},"content_sha256":"a696ae88c08d0d8b0752e546b1a2ca4c193f589778bb04e595bee8a586aa525c","schema_version":"1.0","event_id":"sha256:a696ae88c08d0d8b0752e546b1a2ca4c193f589778bb04e595bee8a586aa525c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:OL3AH4RQCBQ5SSUXTTRMUHS5PM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Interiors of Jupiter and Saturn","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Ravit Helled","submitted_at":"2018-12-18T15:35:48Z","abstract_excerpt":"Probing the interiors of the gas giant planets in our Solar System is not an easy task. It requires a set of accurate measurements combined with theoretical models that are used to infer the planetary composition and its depth dependence. The masses of Jupiter and Saturn are 317.83 and 95.16 Earth masses, respectively, and since a few decades, we know that they mostly consist of hydrogen and helium. It is the mass of heavy elements (all elements heavier than helium) that is not well determined, as well as their distribution within the planets. While the heavy elements are not the dominating ma"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.07436","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":"2026-05-17T23:58:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xVZvH7QXGCIzc3EFqaLRUfKH6i+faRmdJUF/mi07UsfphYXP2KAKVCX2agcQ6/iSoU0AHQ3NyesC7KBUmw38Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T00:27:21.115923Z"},"content_sha256":"008afd1deceeba37b99f371a93b16a466c23d460dfe444836e30a0e22b528182","schema_version":"1.0","event_id":"sha256:008afd1deceeba37b99f371a93b16a466c23d460dfe444836e30a0e22b528182"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OL3AH4RQCBQ5SSUXTTRMUHS5PM/bundle.json","state_url":"https://pith.science/pith/OL3AH4RQCBQ5SSUXTTRMUHS5PM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OL3AH4RQCBQ5SSUXTTRMUHS5PM/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":"2026-06-05T00:27:21Z","links":{"resolver":"https://pith.science/pith/OL3AH4RQCBQ5SSUXTTRMUHS5PM","bundle":"https://pith.science/pith/OL3AH4RQCBQ5SSUXTTRMUHS5PM/bundle.json","state":"https://pith.science/pith/OL3AH4RQCBQ5SSUXTTRMUHS5PM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OL3AH4RQCBQ5SSUXTTRMUHS5PM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:OL3AH4RQCBQ5SSUXTTRMUHS5PM","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":"54462275778d2260cd5667dcd7246579cd7bfb32f9aed9de80a928bc2a1e8fb8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-18T15:35:48Z","title_canon_sha256":"b8503d0dd1948351bfd989862902a4d0dd1ab3aec2165f7c32cfbfd78685a596"},"schema_version":"1.0","source":{"id":"1812.07436","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.07436","created_at":"2026-05-17T23:58:00Z"},{"alias_kind":"arxiv_version","alias_value":"1812.07436v1","created_at":"2026-05-17T23:58:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.07436","created_at":"2026-05-17T23:58:00Z"},{"alias_kind":"pith_short_12","alias_value":"OL3AH4RQCBQ5","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_16","alias_value":"OL3AH4RQCBQ5SSUX","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_8","alias_value":"OL3AH4RQ","created_at":"2026-05-18T12:32:43Z"}],"graph_snapshots":[{"event_id":"sha256:008afd1deceeba37b99f371a93b16a466c23d460dfe444836e30a0e22b528182","target":"graph","created_at":"2026-05-17T23:58:00Z","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":"Probing the interiors of the gas giant planets in our Solar System is not an easy task. It requires a set of accurate measurements combined with theoretical models that are used to infer the planetary composition and its depth dependence. The masses of Jupiter and Saturn are 317.83 and 95.16 Earth masses, respectively, and since a few decades, we know that they mostly consist of hydrogen and helium. It is the mass of heavy elements (all elements heavier than helium) that is not well determined, as well as their distribution within the planets. While the heavy elements are not the dominating ma","authors_text":"Ravit Helled","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-18T15:35:48Z","title":"The Interiors of Jupiter and Saturn"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.07436","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:a696ae88c08d0d8b0752e546b1a2ca4c193f589778bb04e595bee8a586aa525c","target":"record","created_at":"2026-05-17T23:58:00Z","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":"54462275778d2260cd5667dcd7246579cd7bfb32f9aed9de80a928bc2a1e8fb8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-12-18T15:35:48Z","title_canon_sha256":"b8503d0dd1948351bfd989862902a4d0dd1ab3aec2165f7c32cfbfd78685a596"},"schema_version":"1.0","source":{"id":"1812.07436","kind":"arxiv","version":1}},"canonical_sha256":"72f603f2301061d94a979ce2ca1e5d7b0d2bc8693bf701628a3219c24fad3b98","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"72f603f2301061d94a979ce2ca1e5d7b0d2bc8693bf701628a3219c24fad3b98","first_computed_at":"2026-05-17T23:58:00.518891Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:58:00.518891Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"D8Nas6hhPPltyoncL2Ml3V6hl5ZtOnKFD4V8M2O6Cyzuwni++PF67xDK/VMpXyeQpZ4jlsK8JZGVEEwnxU6xBw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:58:00.519511Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.07436","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a696ae88c08d0d8b0752e546b1a2ca4c193f589778bb04e595bee8a586aa525c","sha256:008afd1deceeba37b99f371a93b16a466c23d460dfe444836e30a0e22b528182"],"state_sha256":"3959dedc35de27dbca4b1a2f33040f9a6cbe38e5d93893165381547fba477e82"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QxmDM+jKNX1vGRS697Vk1L/5LKAFwEa5rTlfeIYHjkoQ8ssaV4iQwFwcIbQlDuOJOXm0NiP+BuAO1CFrtmvmBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T00:27:21.119609Z","bundle_sha256":"4594f81ca773166e7a1b341f9330244b7071ce4668e388bd7eae2086a6d0d5b9"}}