{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:LOHATXBR6B5WE7JUAFVAVNGT35","short_pith_number":"pith:LOHATXBR","canonical_record":{"source":{"id":"1610.08016","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-10-25T18:50:51Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"7388ad8e64853498abb1cab9dc16fbe5a66a3e97658ebb21d0095d7328d5bd5a","abstract_canon_sha256":"93c4368ed1162148fa0892723e46175e56bc6e78ca2206518956df17b2206961"},"schema_version":"1.0"},"canonical_sha256":"5b8e09dc31f07b627d34016a0ab4d3df7c34544181356c2ba618ee1bc57a789c","source":{"kind":"arxiv","id":"1610.08016","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.08016","created_at":"2026-05-18T00:53:58Z"},{"alias_kind":"arxiv_version","alias_value":"1610.08016v1","created_at":"2026-05-18T00:53:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.08016","created_at":"2026-05-18T00:53:58Z"},{"alias_kind":"pith_short_12","alias_value":"LOHATXBR6B5W","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LOHATXBR6B5WE7JU","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LOHATXBR","created_at":"2026-05-18T12:30:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:LOHATXBR6B5WE7JUAFVAVNGT35","target":"record","payload":{"canonical_record":{"source":{"id":"1610.08016","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-10-25T18:50:51Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"7388ad8e64853498abb1cab9dc16fbe5a66a3e97658ebb21d0095d7328d5bd5a","abstract_canon_sha256":"93c4368ed1162148fa0892723e46175e56bc6e78ca2206518956df17b2206961"},"schema_version":"1.0"},"canonical_sha256":"5b8e09dc31f07b627d34016a0ab4d3df7c34544181356c2ba618ee1bc57a789c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:53:58.081211Z","signature_b64":"Cjaf7tKP7c804rxqeuCsDSF7RgbhxqKq43Yd/dl6Prck5AWqs3j+fYsptxxCWJ8OXaXKM1KIJauc1S00GE8BCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5b8e09dc31f07b627d34016a0ab4d3df7c34544181356c2ba618ee1bc57a789c","last_reissued_at":"2026-05-18T00:53:58.080590Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:53:58.080590Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.08016","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":"2026-05-18T00:53:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"85rKbojUfteG0/8t+8N3jkZ1dTSTb49TBgbu6tgsB8xv+oNsHcy7zpFMsWeN8NgGbln9I0o97OsP4rh1ShaNBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T19:14:53.671769Z"},"content_sha256":"d45db1c338a5c8cac366054d21049e93cbe302ce059dc801d511a65f7ee18341","schema_version":"1.0","event_id":"sha256:d45db1c338a5c8cac366054d21049e93cbe302ce059dc801d511a65f7ee18341"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:LOHATXBR6B5WE7JUAFVAVNGT35","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Does a Differentiated, Carbonate-Rich, Rocky Object Pollute the White Dwarf SDSSJ104341.53+085558.2?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Carl Melis, P. Dufour","submitted_at":"2016-10-25T18:50:51Z","abstract_excerpt":"We present spectroscopic observations of the dust- and gas-enshrouded, polluted, single white dwarf star SDSSJ104341.53+085558.2 (hereafter SDSSJ1043+0855). Hubble Space Telescope Cosmic Origins Spectrograph far-ultraviolet spectra combined with deep Keck HIRES optical spectroscopy reveal the elements C, O, Mg, Al, Si, P, S, Ca, Fe, and Ni and enable useful limits for Sc, Ti, V, Cr, and Mn in the photosphere of SDSSJ1043+0855. From this suite of elements we determine that the parent body being accreted by SDSSJ1043+0855 is similar to the silicate Moon or the outer layers of Earth in that it is"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.08016","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":"2026-05-18T00:53:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D5+7NFL9eJQoyELvcwwdvxNWAQNWr293ZJDPl/XDAjg0+B2M7Nae5XSaRdGh/GamrR5ET3LcLuyDZ2TAcZZACw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T19:14:53.672113Z"},"content_sha256":"f094570042afad54f0c2d8f2cffc9057b6b638c1a2f657596682eaf7c4599eb9","schema_version":"1.0","event_id":"sha256:f094570042afad54f0c2d8f2cffc9057b6b638c1a2f657596682eaf7c4599eb9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LOHATXBR6B5WE7JUAFVAVNGT35/bundle.json","state_url":"https://pith.science/pith/LOHATXBR6B5WE7JUAFVAVNGT35/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LOHATXBR6B5WE7JUAFVAVNGT35/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":"2026-06-01T19:14:53Z","links":{"resolver":"https://pith.science/pith/LOHATXBR6B5WE7JUAFVAVNGT35","bundle":"https://pith.science/pith/LOHATXBR6B5WE7JUAFVAVNGT35/bundle.json","state":"https://pith.science/pith/LOHATXBR6B5WE7JUAFVAVNGT35/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LOHATXBR6B5WE7JUAFVAVNGT35/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:LOHATXBR6B5WE7JUAFVAVNGT35","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":"93c4368ed1162148fa0892723e46175e56bc6e78ca2206518956df17b2206961","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-10-25T18:50:51Z","title_canon_sha256":"7388ad8e64853498abb1cab9dc16fbe5a66a3e97658ebb21d0095d7328d5bd5a"},"schema_version":"1.0","source":{"id":"1610.08016","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.08016","created_at":"2026-05-18T00:53:58Z"},{"alias_kind":"arxiv_version","alias_value":"1610.08016v1","created_at":"2026-05-18T00:53:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.08016","created_at":"2026-05-18T00:53:58Z"},{"alias_kind":"pith_short_12","alias_value":"LOHATXBR6B5W","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LOHATXBR6B5WE7JU","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LOHATXBR","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:f094570042afad54f0c2d8f2cffc9057b6b638c1a2f657596682eaf7c4599eb9","target":"graph","created_at":"2026-05-18T00:53:58Z","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 present spectroscopic observations of the dust- and gas-enshrouded, polluted, single white dwarf star SDSSJ104341.53+085558.2 (hereafter SDSSJ1043+0855). Hubble Space Telescope Cosmic Origins Spectrograph far-ultraviolet spectra combined with deep Keck HIRES optical spectroscopy reveal the elements C, O, Mg, Al, Si, P, S, Ca, Fe, and Ni and enable useful limits for Sc, Ti, V, Cr, and Mn in the photosphere of SDSSJ1043+0855. From this suite of elements we determine that the parent body being accreted by SDSSJ1043+0855 is similar to the silicate Moon or the outer layers of Earth in that it is","authors_text":"Carl Melis, P. Dufour","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-10-25T18:50:51Z","title":"Does a Differentiated, Carbonate-Rich, Rocky Object Pollute the White Dwarf SDSSJ104341.53+085558.2?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.08016","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:d45db1c338a5c8cac366054d21049e93cbe302ce059dc801d511a65f7ee18341","target":"record","created_at":"2026-05-18T00:53:58Z","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":"93c4368ed1162148fa0892723e46175e56bc6e78ca2206518956df17b2206961","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-10-25T18:50:51Z","title_canon_sha256":"7388ad8e64853498abb1cab9dc16fbe5a66a3e97658ebb21d0095d7328d5bd5a"},"schema_version":"1.0","source":{"id":"1610.08016","kind":"arxiv","version":1}},"canonical_sha256":"5b8e09dc31f07b627d34016a0ab4d3df7c34544181356c2ba618ee1bc57a789c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5b8e09dc31f07b627d34016a0ab4d3df7c34544181356c2ba618ee1bc57a789c","first_computed_at":"2026-05-18T00:53:58.080590Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:53:58.080590Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Cjaf7tKP7c804rxqeuCsDSF7RgbhxqKq43Yd/dl6Prck5AWqs3j+fYsptxxCWJ8OXaXKM1KIJauc1S00GE8BCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:53:58.081211Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.08016","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d45db1c338a5c8cac366054d21049e93cbe302ce059dc801d511a65f7ee18341","sha256:f094570042afad54f0c2d8f2cffc9057b6b638c1a2f657596682eaf7c4599eb9"],"state_sha256":"fad2f6321b25d59b6d66007866f6affeae4d2c3fceacb7b0e06594d23b03257c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V7PzlGMNCs02dW0jR2bSprKwoux464/B8Uzqpd2fv31VSu/zYMuayG8rF2JJpq4doBqGDhqOlvT/Y5hsFX2gCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T19:14:53.674143Z","bundle_sha256":"526b3366590b49cf7d097eaee4f9d680447c6baf647953fdc14852d6c564fd3c"}}