{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:3XJYXJYAP2SUKE7WR7DE6EZJZC","short_pith_number":"pith:3XJYXJYA","canonical_record":{"source":{"id":"1410.3819","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-10-15T07:00:35Z","cross_cats_sorted":[],"title_canon_sha256":"e3121090d27a00ebf74323907c76c04cad666b5ceca670c1804ecb5122ff017b","abstract_canon_sha256":"6aa470af770a362c0f8454ca2ac8952911d5062bc6a9a458ef9b9a3afda18007"},"schema_version":"1.0"},"canonical_sha256":"ddd38ba7007ea54513f68fc64f1329c8a375eb07bcf059420038a12e483151c0","source":{"kind":"arxiv","id":"1410.3819","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.3819","created_at":"2026-05-18T02:40:03Z"},{"alias_kind":"arxiv_version","alias_value":"1410.3819v1","created_at":"2026-05-18T02:40:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.3819","created_at":"2026-05-18T02:40:03Z"},{"alias_kind":"pith_short_12","alias_value":"3XJYXJYAP2SU","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"3XJYXJYAP2SUKE7W","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"3XJYXJYA","created_at":"2026-05-18T12:28:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:3XJYXJYAP2SUKE7WR7DE6EZJZC","target":"record","payload":{"canonical_record":{"source":{"id":"1410.3819","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-10-15T07:00:35Z","cross_cats_sorted":[],"title_canon_sha256":"e3121090d27a00ebf74323907c76c04cad666b5ceca670c1804ecb5122ff017b","abstract_canon_sha256":"6aa470af770a362c0f8454ca2ac8952911d5062bc6a9a458ef9b9a3afda18007"},"schema_version":"1.0"},"canonical_sha256":"ddd38ba7007ea54513f68fc64f1329c8a375eb07bcf059420038a12e483151c0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:40:03.790494Z","signature_b64":"i0TWESV9Ajj1biP85eJOC2dmRcoLy1msmff4mU/Xmf7r8wwl/aPPZmJd71gmDaMkzmDOt4CiuocWR0oqXnVwDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ddd38ba7007ea54513f68fc64f1329c8a375eb07bcf059420038a12e483151c0","last_reissued_at":"2026-05-18T02:40:03.790040Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:40:03.790040Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1410.3819","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":"2026-05-18T02:40:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ocgnXsfCiJAqz2IS3LhWXQ+96sjjldmthgdsQZkrnGSC9qnlStL4dZOAXz5IOeyjTXs/Gk+yPHFpi98k4NLjCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T14:21:52.213908Z"},"content_sha256":"02b74eddfbce2b3fc883c5ae8d869255f9fccdd831e9b24a7713c0bb856378f1","schema_version":"1.0","event_id":"sha256:02b74eddfbce2b3fc883c5ae8d869255f9fccdd831e9b24a7713c0bb856378f1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:3XJYXJYAP2SUKE7WR7DE6EZJZC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the origin and composition of Theia: Constraints from new models of the Giant Impact","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"2), Andreas Reufer (3), Arizona State University, Department of Earth Sciences, France (2) ETH Zurich, Matthias M.M. Meier (1, Rainer Wieler (2) ((1) CRPG CNRS Nancy, Switzerland (3) School of Earth & Space Exploration, USA), Zurich","submitted_at":"2014-10-15T07:00:35Z","abstract_excerpt":"Knowing the isotopic composition of Theia, the proto-planet which collided with the Earth in the Giant Impact that formed the Moon, could provide interesting insights on the state of homogenization of the inner solar system at the late stages of terrestrial planet formation. We use the known isotopic and modeled chemical compositions of the bulk silicate mantles of Earth and Moon and combine them with different Giant Impact models, to calculate the possible ranges of isotopic composition of Theia in O, Si, Ti, Cr, Zr and W in each model. We compare these ranges to the isotopic composition of c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.3819","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":"2026-05-18T02:40:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9ZFATUVqH6ng0qiiGGXBh7igpDcqpkpsVQg1DVHhQAF1RKV3M3shiiccqvwTGwSmhfoB+Ndbo5WI3TLMRW1iBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T14:21:52.214269Z"},"content_sha256":"32f47efb7451cf6c7dc702be77ad3d751a774427b3e419938be3de415d16c16e","schema_version":"1.0","event_id":"sha256:32f47efb7451cf6c7dc702be77ad3d751a774427b3e419938be3de415d16c16e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3XJYXJYAP2SUKE7WR7DE6EZJZC/bundle.json","state_url":"https://pith.science/pith/3XJYXJYAP2SUKE7WR7DE6EZJZC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3XJYXJYAP2SUKE7WR7DE6EZJZC/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":"2026-06-09T14:21:52Z","links":{"resolver":"https://pith.science/pith/3XJYXJYAP2SUKE7WR7DE6EZJZC","bundle":"https://pith.science/pith/3XJYXJYAP2SUKE7WR7DE6EZJZC/bundle.json","state":"https://pith.science/pith/3XJYXJYAP2SUKE7WR7DE6EZJZC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3XJYXJYAP2SUKE7WR7DE6EZJZC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:3XJYXJYAP2SUKE7WR7DE6EZJZC","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":"6aa470af770a362c0f8454ca2ac8952911d5062bc6a9a458ef9b9a3afda18007","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-10-15T07:00:35Z","title_canon_sha256":"e3121090d27a00ebf74323907c76c04cad666b5ceca670c1804ecb5122ff017b"},"schema_version":"1.0","source":{"id":"1410.3819","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.3819","created_at":"2026-05-18T02:40:03Z"},{"alias_kind":"arxiv_version","alias_value":"1410.3819v1","created_at":"2026-05-18T02:40:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.3819","created_at":"2026-05-18T02:40:03Z"},{"alias_kind":"pith_short_12","alias_value":"3XJYXJYAP2SU","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"3XJYXJYAP2SUKE7W","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"3XJYXJYA","created_at":"2026-05-18T12:28:11Z"}],"graph_snapshots":[{"event_id":"sha256:32f47efb7451cf6c7dc702be77ad3d751a774427b3e419938be3de415d16c16e","target":"graph","created_at":"2026-05-18T02:40:03Z","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":"Knowing the isotopic composition of Theia, the proto-planet which collided with the Earth in the Giant Impact that formed the Moon, could provide interesting insights on the state of homogenization of the inner solar system at the late stages of terrestrial planet formation. We use the known isotopic and modeled chemical compositions of the bulk silicate mantles of Earth and Moon and combine them with different Giant Impact models, to calculate the possible ranges of isotopic composition of Theia in O, Si, Ti, Cr, Zr and W in each model. We compare these ranges to the isotopic composition of c","authors_text":"2), Andreas Reufer (3), Arizona State University, Department of Earth Sciences, France (2) ETH Zurich, Matthias M.M. Meier (1, Rainer Wieler (2) ((1) CRPG CNRS Nancy, Switzerland (3) School of Earth & Space Exploration, USA), Zurich","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-10-15T07:00:35Z","title":"On the origin and composition of Theia: Constraints from new models of the Giant Impact"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.3819","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":"sha256:02b74eddfbce2b3fc883c5ae8d869255f9fccdd831e9b24a7713c0bb856378f1","target":"record","created_at":"2026-05-18T02:40:03Z","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":"6aa470af770a362c0f8454ca2ac8952911d5062bc6a9a458ef9b9a3afda18007","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-10-15T07:00:35Z","title_canon_sha256":"e3121090d27a00ebf74323907c76c04cad666b5ceca670c1804ecb5122ff017b"},"schema_version":"1.0","source":{"id":"1410.3819","kind":"arxiv","version":1}},"canonical_sha256":"ddd38ba7007ea54513f68fc64f1329c8a375eb07bcf059420038a12e483151c0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ddd38ba7007ea54513f68fc64f1329c8a375eb07bcf059420038a12e483151c0","first_computed_at":"2026-05-18T02:40:03.790040Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:40:03.790040Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"i0TWESV9Ajj1biP85eJOC2dmRcoLy1msmff4mU/Xmf7r8wwl/aPPZmJd71gmDaMkzmDOt4CiuocWR0oqXnVwDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:40:03.790494Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.3819","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:02b74eddfbce2b3fc883c5ae8d869255f9fccdd831e9b24a7713c0bb856378f1","sha256:32f47efb7451cf6c7dc702be77ad3d751a774427b3e419938be3de415d16c16e"],"state_sha256":"03341490b120856c50f86546d4b8a59fb9c7b75cb1df59e45a35c02d2d3c9242"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GMPsnfVM43NyYxqdnPqQzoKIcU+H532xuo1iVuyY0OJqx5K7fu9N7pSKNxQSkypCpNhVQDRmnVME2nVXeNO9CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T14:21:52.216513Z","bundle_sha256":"d51ff440f77591ae9adaddf7478fd74590c9ffe662ca619479e8ca0a8ccd0c78"}}