{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:2DMKPXNE7RCCLLYFN24JZELW5N","short_pith_number":"pith:2DMKPXNE","canonical_record":{"source":{"id":"1012.4281","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-20T10:50:23Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"9a055e630cd55b197b1aa773822fe1b7562c13fd35f14b7e8f350985fa67c7fb","abstract_canon_sha256":"0bae7e969c034bf78e76f62e812601ef533bbb96407fa5402c5db6f300a6ea71"},"schema_version":"1.0"},"canonical_sha256":"d0d8a7dda4fc4425af056eb89c9176eb75fbbbfcece4e3c0133e54bd3c795f7f","source":{"kind":"arxiv","id":"1012.4281","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.4281","created_at":"2026-05-18T02:04:22Z"},{"alias_kind":"arxiv_version","alias_value":"1012.4281v2","created_at":"2026-05-18T02:04:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.4281","created_at":"2026-05-18T02:04:22Z"},{"alias_kind":"pith_short_12","alias_value":"2DMKPXNE7RCC","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"2DMKPXNE7RCCLLYF","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"2DMKPXNE","created_at":"2026-05-18T12:26:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:2DMKPXNE7RCCLLYFN24JZELW5N","target":"record","payload":{"canonical_record":{"source":{"id":"1012.4281","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-20T10:50:23Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"9a055e630cd55b197b1aa773822fe1b7562c13fd35f14b7e8f350985fa67c7fb","abstract_canon_sha256":"0bae7e969c034bf78e76f62e812601ef533bbb96407fa5402c5db6f300a6ea71"},"schema_version":"1.0"},"canonical_sha256":"d0d8a7dda4fc4425af056eb89c9176eb75fbbbfcece4e3c0133e54bd3c795f7f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:04:22.134289Z","signature_b64":"yb8z2ANFJ50M+l5M5KBPFbHJRSo0aYOgvJXc+n+LQ7cw2Vk1pPnfjMQZ/gMIoA267OMiBBNFC2ffnLl+WEgkDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d0d8a7dda4fc4425af056eb89c9176eb75fbbbfcece4e3c0133e54bd3c795f7f","last_reissued_at":"2026-05-18T02:04:22.133525Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:04:22.133525Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1012.4281","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:04:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ak602tMX1fni1TidMP+W9F4cOs5R6iVx5VeEyITWkO0RjKcxL3p1RrJIC8T1cp3mgNVW4nYQPu6s86OxqTODAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T08:16:40.692090Z"},"content_sha256":"f00eb0bb442761f3caa30e837080628cd7fe1460338b6edefda906a660a9c62a","schema_version":"1.0","event_id":"sha256:f00eb0bb442761f3caa30e837080628cd7fe1460338b6edefda906a660a9c62a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:2DMKPXNE7RCCLLYFN24JZELW5N","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measuring Be depletion in cool stars with exoplanets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Elisa Delgado Mena, Garik Israelian, Jonay I. Gonz\\'alez Hern\\'andez, Nuno C. Santos, Rafael Rebolo","submitted_at":"2010-12-20T10:50:23Z","abstract_excerpt":"We present new UVES spectra of a sample of 14 mostly cool unevolved stars with planetary companions with the aim of studying possible differences in Be abundance with respect to stars without detected planets. We determine Be abundances for these stars that show an increase in Be depletion as we move to lower temperatures. We carry out a differential analysis of spectra of analog stars with and without planets to establish a possible difference in Be content. While for hot stars no measurable difference is found in Be, for the only cool (Teff ~ 5000 K) planet host star with several analogs in "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.4281","kind":"arxiv","version":2},"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":"2026-05-18T02:04:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TaL9368naSkv3VDjGi6p/ZOYWn8lLCN4q3ZcGQkZwYPzMnRp+QBQvLF5Y6Bh5y/CIpGmQHrPBYEhvSiOsn5nDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T08:16:40.692457Z"},"content_sha256":"2d102bb4c11b6ea4738be3bfb83a017e895716efae47542525e752f747ba2669","schema_version":"1.0","event_id":"sha256:2d102bb4c11b6ea4738be3bfb83a017e895716efae47542525e752f747ba2669"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2DMKPXNE7RCCLLYFN24JZELW5N/bundle.json","state_url":"https://pith.science/pith/2DMKPXNE7RCCLLYFN24JZELW5N/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2DMKPXNE7RCCLLYFN24JZELW5N/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":"2026-05-28T08:16:40Z","links":{"resolver":"https://pith.science/pith/2DMKPXNE7RCCLLYFN24JZELW5N","bundle":"https://pith.science/pith/2DMKPXNE7RCCLLYFN24JZELW5N/bundle.json","state":"https://pith.science/pith/2DMKPXNE7RCCLLYFN24JZELW5N/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2DMKPXNE7RCCLLYFN24JZELW5N/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:2DMKPXNE7RCCLLYFN24JZELW5N","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":"0bae7e969c034bf78e76f62e812601ef533bbb96407fa5402c5db6f300a6ea71","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-20T10:50:23Z","title_canon_sha256":"9a055e630cd55b197b1aa773822fe1b7562c13fd35f14b7e8f350985fa67c7fb"},"schema_version":"1.0","source":{"id":"1012.4281","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.4281","created_at":"2026-05-18T02:04:22Z"},{"alias_kind":"arxiv_version","alias_value":"1012.4281v2","created_at":"2026-05-18T02:04:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.4281","created_at":"2026-05-18T02:04:22Z"},{"alias_kind":"pith_short_12","alias_value":"2DMKPXNE7RCC","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"2DMKPXNE7RCCLLYF","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"2DMKPXNE","created_at":"2026-05-18T12:26:03Z"}],"graph_snapshots":[{"event_id":"sha256:2d102bb4c11b6ea4738be3bfb83a017e895716efae47542525e752f747ba2669","target":"graph","created_at":"2026-05-18T02:04:22Z","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 new UVES spectra of a sample of 14 mostly cool unevolved stars with planetary companions with the aim of studying possible differences in Be abundance with respect to stars without detected planets. We determine Be abundances for these stars that show an increase in Be depletion as we move to lower temperatures. We carry out a differential analysis of spectra of analog stars with and without planets to establish a possible difference in Be content. While for hot stars no measurable difference is found in Be, for the only cool (Teff ~ 5000 K) planet host star with several analogs in ","authors_text":"Elisa Delgado Mena, Garik Israelian, Jonay I. Gonz\\'alez Hern\\'andez, Nuno C. Santos, Rafael Rebolo","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-20T10:50:23Z","title":"Measuring Be depletion in cool stars with exoplanets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.4281","kind":"arxiv","version":2},"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:f00eb0bb442761f3caa30e837080628cd7fe1460338b6edefda906a660a9c62a","target":"record","created_at":"2026-05-18T02:04:22Z","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":"0bae7e969c034bf78e76f62e812601ef533bbb96407fa5402c5db6f300a6ea71","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-20T10:50:23Z","title_canon_sha256":"9a055e630cd55b197b1aa773822fe1b7562c13fd35f14b7e8f350985fa67c7fb"},"schema_version":"1.0","source":{"id":"1012.4281","kind":"arxiv","version":2}},"canonical_sha256":"d0d8a7dda4fc4425af056eb89c9176eb75fbbbfcece4e3c0133e54bd3c795f7f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d0d8a7dda4fc4425af056eb89c9176eb75fbbbfcece4e3c0133e54bd3c795f7f","first_computed_at":"2026-05-18T02:04:22.133525Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:22.133525Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yb8z2ANFJ50M+l5M5KBPFbHJRSo0aYOgvJXc+n+LQ7cw2Vk1pPnfjMQZ/gMIoA267OMiBBNFC2ffnLl+WEgkDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:22.134289Z","signed_message":"canonical_sha256_bytes"},"source_id":"1012.4281","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f00eb0bb442761f3caa30e837080628cd7fe1460338b6edefda906a660a9c62a","sha256:2d102bb4c11b6ea4738be3bfb83a017e895716efae47542525e752f747ba2669"],"state_sha256":"15333a05131d76562962c529a3c032031d44a61d18ff69f7e1fdc9466373a6dc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zlDb2Uf1e6qpPJlO5/CXHQJOlsK37RRXXWHQElqh7299GFyOfiAXPzd8o5NT9tlxklz9A/ba6kPyWFNzhbKVAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T08:16:40.694489Z","bundle_sha256":"7f8095a9b35878c016739a51b046e7d041957e17ec0388493ddbd8272414da5e"}}