{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:ZDENJ43ZD2SHF7A5Q27PCSGDBR","short_pith_number":"pith:ZDENJ43Z","canonical_record":{"source":{"id":"1208.3289","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-16T04:49:38Z","cross_cats_sorted":[],"title_canon_sha256":"d929970f5ed3696f6026565d7fdaaebb9792a1386eacbdfe1dc257ed32ecf931","abstract_canon_sha256":"fea949843ce0a30a8007f36784a93cd809f3c4c9631ae0aa0e7654a06ea071a7"},"schema_version":"1.0"},"canonical_sha256":"c8c8d4f3791ea472fc1d86bef148c30c6b46582721ab80c98cf7deaa52a34f20","source":{"kind":"arxiv","id":"1208.3289","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.3289","created_at":"2026-05-18T01:55:15Z"},{"alias_kind":"arxiv_version","alias_value":"1208.3289v1","created_at":"2026-05-18T01:55:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.3289","created_at":"2026-05-18T01:55:15Z"},{"alias_kind":"pith_short_12","alias_value":"ZDENJ43ZD2SH","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"ZDENJ43ZD2SHF7A5","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"ZDENJ43Z","created_at":"2026-05-18T12:27:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:ZDENJ43ZD2SHF7A5Q27PCSGDBR","target":"record","payload":{"canonical_record":{"source":{"id":"1208.3289","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-16T04:49:38Z","cross_cats_sorted":[],"title_canon_sha256":"d929970f5ed3696f6026565d7fdaaebb9792a1386eacbdfe1dc257ed32ecf931","abstract_canon_sha256":"fea949843ce0a30a8007f36784a93cd809f3c4c9631ae0aa0e7654a06ea071a7"},"schema_version":"1.0"},"canonical_sha256":"c8c8d4f3791ea472fc1d86bef148c30c6b46582721ab80c98cf7deaa52a34f20","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:55:15.423804Z","signature_b64":"ULXA+BMTG7UN7o6cXKklGZXW33USjPjQtPLpXKDYtj+sJVmMT4Qegsox4qLfvvXOnGqD/yQEN/hUhxLrE1x4DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c8c8d4f3791ea472fc1d86bef148c30c6b46582721ab80c98cf7deaa52a34f20","last_reissued_at":"2026-05-18T01:55:15.423344Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:55:15.423344Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1208.3289","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":"2026-05-18T01:55:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4DXyPliLqj6o/o7az+729FGtlkEyQlPaQyyMjwPvgAWO/xZlykB5RVE5Tv4UEF7Th6L+csKsk/Q4EgY7QewzAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T07:41:53.422063Z"},"content_sha256":"8ed05c559aa3c5497d8f45851cf5609e35801f8e25be5ca906cfd40c5d1539af","schema_version":"1.0","event_id":"sha256:8ed05c559aa3c5497d8f45851cf5609e35801f8e25be5ca906cfd40c5d1539af"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:ZDENJ43ZD2SHF7A5Q27PCSGDBR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Planetesimal Compositions in Exoplanet Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Jonathan I. Lunine, Nikku Madhusudhan, Olivier Mousis, Torrence V. Johnson","submitted_at":"2012-08-16T04:49:38Z","abstract_excerpt":"We have used recent surveys of the composition of exoplanet host stars to investigate the expected composition of condensed material in planetesimals formed beyond the snow line in the circumstellar nebulae of these systems. Of the major solid forming elements, we find that, as for the Sun, the C and O abundances (and particularly the C/O abundance ratio) have the most significant effect on the composition of icy planetesimals formed in these systems. The calculations use a self-consistent model for the condensation sequence of volatile ices from the nebula gas after refractory (silicate and m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.3289","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":"2026-05-18T01:55:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Wubi/HCTf6TRVFZHustO+7NKjhPjsZy8FoiaX8GtVp8eZv3IPKWHnxkY28In4Vk0ZUXlVMVG/WjYOBsSmJ7dCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T07:41:53.422854Z"},"content_sha256":"85e45e99626ba12ee75a81559e94e2aa69d6f6e7e638d6d0bc11cb3464032cc1","schema_version":"1.0","event_id":"sha256:85e45e99626ba12ee75a81559e94e2aa69d6f6e7e638d6d0bc11cb3464032cc1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZDENJ43ZD2SHF7A5Q27PCSGDBR/bundle.json","state_url":"https://pith.science/pith/ZDENJ43ZD2SHF7A5Q27PCSGDBR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZDENJ43ZD2SHF7A5Q27PCSGDBR/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":"2026-06-10T07:41:53Z","links":{"resolver":"https://pith.science/pith/ZDENJ43ZD2SHF7A5Q27PCSGDBR","bundle":"https://pith.science/pith/ZDENJ43ZD2SHF7A5Q27PCSGDBR/bundle.json","state":"https://pith.science/pith/ZDENJ43ZD2SHF7A5Q27PCSGDBR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZDENJ43ZD2SHF7A5Q27PCSGDBR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:ZDENJ43ZD2SHF7A5Q27PCSGDBR","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":"fea949843ce0a30a8007f36784a93cd809f3c4c9631ae0aa0e7654a06ea071a7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-16T04:49:38Z","title_canon_sha256":"d929970f5ed3696f6026565d7fdaaebb9792a1386eacbdfe1dc257ed32ecf931"},"schema_version":"1.0","source":{"id":"1208.3289","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.3289","created_at":"2026-05-18T01:55:15Z"},{"alias_kind":"arxiv_version","alias_value":"1208.3289v1","created_at":"2026-05-18T01:55:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.3289","created_at":"2026-05-18T01:55:15Z"},{"alias_kind":"pith_short_12","alias_value":"ZDENJ43ZD2SH","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"ZDENJ43ZD2SHF7A5","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"ZDENJ43Z","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:85e45e99626ba12ee75a81559e94e2aa69d6f6e7e638d6d0bc11cb3464032cc1","target":"graph","created_at":"2026-05-18T01:55:15Z","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":"We have used recent surveys of the composition of exoplanet host stars to investigate the expected composition of condensed material in planetesimals formed beyond the snow line in the circumstellar nebulae of these systems. Of the major solid forming elements, we find that, as for the Sun, the C and O abundances (and particularly the C/O abundance ratio) have the most significant effect on the composition of icy planetesimals formed in these systems. The calculations use a self-consistent model for the condensation sequence of volatile ices from the nebula gas after refractory (silicate and m","authors_text":"Jonathan I. Lunine, Nikku Madhusudhan, Olivier Mousis, Torrence V. Johnson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-16T04:49:38Z","title":"Planetesimal Compositions in Exoplanet Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.3289","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":"sha256:8ed05c559aa3c5497d8f45851cf5609e35801f8e25be5ca906cfd40c5d1539af","target":"record","created_at":"2026-05-18T01:55:15Z","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":"fea949843ce0a30a8007f36784a93cd809f3c4c9631ae0aa0e7654a06ea071a7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-16T04:49:38Z","title_canon_sha256":"d929970f5ed3696f6026565d7fdaaebb9792a1386eacbdfe1dc257ed32ecf931"},"schema_version":"1.0","source":{"id":"1208.3289","kind":"arxiv","version":1}},"canonical_sha256":"c8c8d4f3791ea472fc1d86bef148c30c6b46582721ab80c98cf7deaa52a34f20","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c8c8d4f3791ea472fc1d86bef148c30c6b46582721ab80c98cf7deaa52a34f20","first_computed_at":"2026-05-18T01:55:15.423344Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:55:15.423344Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ULXA+BMTG7UN7o6cXKklGZXW33USjPjQtPLpXKDYtj+sJVmMT4Qegsox4qLfvvXOnGqD/yQEN/hUhxLrE1x4DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:55:15.423804Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.3289","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ed05c559aa3c5497d8f45851cf5609e35801f8e25be5ca906cfd40c5d1539af","sha256:85e45e99626ba12ee75a81559e94e2aa69d6f6e7e638d6d0bc11cb3464032cc1"],"state_sha256":"6d60ca4915714836879c680783e4016cee1b01350ae86dbbcffa2e65b35209b3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0tdBPf9GO1HMEbkKQbvjxBx3nfJeWWM0cipJS2r25yjbjz3JxoKY1VC36aKiBPFyqz+xTiWePW9GIcYyRKPlDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T07:41:53.427860Z","bundle_sha256":"b9091d6c9a01d3321f9645e288b37320ff0502b38ce635f648b1f7a41a9fb4e1"}}