{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:MHHYKRCMZ2FH354O2ZFE3KXQIJ","short_pith_number":"pith:MHHYKRCM","canonical_record":{"source":{"id":"1806.05649","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-14T17:04:28Z","cross_cats_sorted":[],"title_canon_sha256":"465b3aaf49e2f383b92569eb83110c1cc38d686f879dc728e557f3ab58ce970e","abstract_canon_sha256":"48c019dba9f8563dec20556285d2b51a01896ac8199bdfd37b7cb616ad7161b5"},"schema_version":"1.0"},"canonical_sha256":"61cf85444cce8a7df78ed64a4daaf0426d97543861eb8ff4009c83cba505fcfb","source":{"kind":"arxiv","id":"1806.05649","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.05649","created_at":"2026-05-17T23:59:16Z"},{"alias_kind":"arxiv_version","alias_value":"1806.05649v1","created_at":"2026-05-17T23:59:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.05649","created_at":"2026-05-17T23:59:16Z"},{"alias_kind":"pith_short_12","alias_value":"MHHYKRCMZ2FH","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"MHHYKRCMZ2FH354O","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"MHHYKRCM","created_at":"2026-05-18T12:32:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:MHHYKRCMZ2FH354O2ZFE3KXQIJ","target":"record","payload":{"canonical_record":{"source":{"id":"1806.05649","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-14T17:04:28Z","cross_cats_sorted":[],"title_canon_sha256":"465b3aaf49e2f383b92569eb83110c1cc38d686f879dc728e557f3ab58ce970e","abstract_canon_sha256":"48c019dba9f8563dec20556285d2b51a01896ac8199bdfd37b7cb616ad7161b5"},"schema_version":"1.0"},"canonical_sha256":"61cf85444cce8a7df78ed64a4daaf0426d97543861eb8ff4009c83cba505fcfb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:59:16.943890Z","signature_b64":"JmE25TBzHMjLR/C5PL8VEMYhw0Sq8DZ/x3HsL+4UTb27Bg78eREqK1OUHF7C8L7wUrHHToCi8tPaFsLmF+0GAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"61cf85444cce8a7df78ed64a4daaf0426d97543861eb8ff4009c83cba505fcfb","last_reissued_at":"2026-05-17T23:59:16.943367Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:59:16.943367Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.05649","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":"2026-05-17T23:59:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9o4KM4G2yEQVdgbrFwjlfxwbmSMuCV68kUH6+sDwQy65OIw8+w3ljG7RhT2hyv4tT9Xn0gc6zNAgeI2Z+y8lBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T20:01:08.498412Z"},"content_sha256":"33f1b12d676e457fd691beafc2542eb1ec58123bab32d4f11c712b557aa6aef8","schema_version":"1.0","event_id":"sha256:33f1b12d676e457fd691beafc2542eb1ec58123bab32d4f11c712b557aa6aef8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:MHHYKRCMZ2FH354O2ZFE3KXQIJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Formation of Giant Planets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Gennaro D'Angelo, Jack J. Lissauer","submitted_at":"2018-06-14T17:04:28Z","abstract_excerpt":"Giant planets are tens to thousands of times as massive as the Earth, and many times as large. Most of their volumes are occupied by hydrogen and helium, the primary constituents of the protostellar disks from which they formed. Significantly, the solar system giants are also highly enriched in heavier elements relative to the Sun, indicating that solid material participated in their assembly. Giant planets account for most of the mass of our planetary system and of those extrasolar planetary systems in which they are present. Therefore, giant planets are primary actors in determining the orbi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.05649","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":"2026-05-17T23:59:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nj37JFDOncwsIkTsnw2jhzkQlEhABC0yusSdiVRt6uDBv6f8MtbLkLL3N0dOtEmoRhaWUJyLB4b4FVAwOcswBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T20:01:08.499120Z"},"content_sha256":"694a8ccd48ea57d071431dca6701fd85db1d0a940a3fcdb6f7d6848735c01630","schema_version":"1.0","event_id":"sha256:694a8ccd48ea57d071431dca6701fd85db1d0a940a3fcdb6f7d6848735c01630"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MHHYKRCMZ2FH354O2ZFE3KXQIJ/bundle.json","state_url":"https://pith.science/pith/MHHYKRCMZ2FH354O2ZFE3KXQIJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MHHYKRCMZ2FH354O2ZFE3KXQIJ/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":"2026-05-31T20:01:08Z","links":{"resolver":"https://pith.science/pith/MHHYKRCMZ2FH354O2ZFE3KXQIJ","bundle":"https://pith.science/pith/MHHYKRCMZ2FH354O2ZFE3KXQIJ/bundle.json","state":"https://pith.science/pith/MHHYKRCMZ2FH354O2ZFE3KXQIJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MHHYKRCMZ2FH354O2ZFE3KXQIJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:MHHYKRCMZ2FH354O2ZFE3KXQIJ","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":"48c019dba9f8563dec20556285d2b51a01896ac8199bdfd37b7cb616ad7161b5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-14T17:04:28Z","title_canon_sha256":"465b3aaf49e2f383b92569eb83110c1cc38d686f879dc728e557f3ab58ce970e"},"schema_version":"1.0","source":{"id":"1806.05649","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.05649","created_at":"2026-05-17T23:59:16Z"},{"alias_kind":"arxiv_version","alias_value":"1806.05649v1","created_at":"2026-05-17T23:59:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.05649","created_at":"2026-05-17T23:59:16Z"},{"alias_kind":"pith_short_12","alias_value":"MHHYKRCMZ2FH","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"MHHYKRCMZ2FH354O","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"MHHYKRCM","created_at":"2026-05-18T12:32:37Z"}],"graph_snapshots":[{"event_id":"sha256:694a8ccd48ea57d071431dca6701fd85db1d0a940a3fcdb6f7d6848735c01630","target":"graph","created_at":"2026-05-17T23:59:16Z","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":"Giant planets are tens to thousands of times as massive as the Earth, and many times as large. Most of their volumes are occupied by hydrogen and helium, the primary constituents of the protostellar disks from which they formed. Significantly, the solar system giants are also highly enriched in heavier elements relative to the Sun, indicating that solid material participated in their assembly. Giant planets account for most of the mass of our planetary system and of those extrasolar planetary systems in which they are present. Therefore, giant planets are primary actors in determining the orbi","authors_text":"Gennaro D'Angelo, Jack J. Lissauer","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-14T17:04:28Z","title":"Formation of Giant Planets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.05649","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":"sha256:33f1b12d676e457fd691beafc2542eb1ec58123bab32d4f11c712b557aa6aef8","target":"record","created_at":"2026-05-17T23:59:16Z","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":"48c019dba9f8563dec20556285d2b51a01896ac8199bdfd37b7cb616ad7161b5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-14T17:04:28Z","title_canon_sha256":"465b3aaf49e2f383b92569eb83110c1cc38d686f879dc728e557f3ab58ce970e"},"schema_version":"1.0","source":{"id":"1806.05649","kind":"arxiv","version":1}},"canonical_sha256":"61cf85444cce8a7df78ed64a4daaf0426d97543861eb8ff4009c83cba505fcfb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"61cf85444cce8a7df78ed64a4daaf0426d97543861eb8ff4009c83cba505fcfb","first_computed_at":"2026-05-17T23:59:16.943367Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:59:16.943367Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JmE25TBzHMjLR/C5PL8VEMYhw0Sq8DZ/x3HsL+4UTb27Bg78eREqK1OUHF7C8L7wUrHHToCi8tPaFsLmF+0GAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:59:16.943890Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.05649","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:33f1b12d676e457fd691beafc2542eb1ec58123bab32d4f11c712b557aa6aef8","sha256:694a8ccd48ea57d071431dca6701fd85db1d0a940a3fcdb6f7d6848735c01630"],"state_sha256":"8840888658bb18ed5f054c89d77a51320232ef3941a99993b0d6ae1b0e36cbd0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xIbYn/fGDAnRkXhCJOPWGvhRoq/JC9QFsAeu9rCVIAnT/KxqwakzElbALm08rn9CPGN2gyz9avZJXepX00CDAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T20:01:08.503364Z","bundle_sha256":"cca3029cd8c3cf834d88adb01ed376c254adfc10ffe984d6a6e7a146db71b1c8"}}