{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:RZG2BXLCZZFHYRO5TBN2X755ZF","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":"886bc8c09af7eacd197c34550b917dec9d688d81ab34168852962c5f8b4b7081","cross_cats_sorted":["astro-ph.EP","astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-06-12T15:56:07Z","title_canon_sha256":"f2087087b521418d4b3c9297420442edc647b6ab6e71dcd1954c910195efb00e"},"schema_version":"1.0","source":{"id":"2006.07280","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.07280","created_at":"2026-07-05T01:24:37Z"},{"alias_kind":"arxiv_version","alias_value":"2006.07280v1","created_at":"2026-07-05T01:24:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.07280","created_at":"2026-07-05T01:24:37Z"},{"alias_kind":"pith_short_12","alias_value":"RZG2BXLCZZFH","created_at":"2026-07-05T01:24:37Z"},{"alias_kind":"pith_short_16","alias_value":"RZG2BXLCZZFHYRO5","created_at":"2026-07-05T01:24:37Z"},{"alias_kind":"pith_short_8","alias_value":"RZG2BXLC","created_at":"2026-07-05T01:24:37Z"}],"graph_snapshots":[{"event_id":"sha256:28db45fcaf69992a982cf7fc4f167d09ca09a161193b9557076e5e70127ef3e1","target":"graph","created_at":"2026-07-05T01:24:37Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2006.07280/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We mainly aim to search for the lithium depletion boundary (LDB) among the sub-stellar population of the open star cluster Coma Berenices. We carried out a search for brown dwarf (BD) candidates using colour-magnitude diagrams combining optical and infrared photometry from the latest public releases of the following large-scale surveys: UKIRT/UKIDSS, Pan-STARRS, SDSS, and AllWISE. We checked astrometric consistency with cluster membership using $Gaia$ DR2. A couple dozen new candidate BDs located inside the tidal radius of Coma Ber are reported, but none of these are significantly fainter and ","authors_text":"Eduardo L. Mart\\'in, Nicolas Lodieu, V\\'ictor S\\'anchez B\\'ejar","cross_cats":["astro-ph.EP","astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-06-12T15:56:07Z","title":"Search for the sub-stellar lithium depletion boundary in the open star cluster Coma Berenices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.07280","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":"sha256:5360b2e8c12465124bf5c524423eb6768bf295cc924426fa3f1711f0dd225b39","target":"record","created_at":"2026-07-05T01:24:37Z","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":"886bc8c09af7eacd197c34550b917dec9d688d81ab34168852962c5f8b4b7081","cross_cats_sorted":["astro-ph.EP","astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-06-12T15:56:07Z","title_canon_sha256":"f2087087b521418d4b3c9297420442edc647b6ab6e71dcd1954c910195efb00e"},"schema_version":"1.0","source":{"id":"2006.07280","kind":"arxiv","version":1}},"canonical_sha256":"8e4da0dd62ce4a7c45dd985babffbdc96f8460b4c459438a2e80c75c692a0d7d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8e4da0dd62ce4a7c45dd985babffbdc96f8460b4c459438a2e80c75c692a0d7d","first_computed_at":"2026-07-05T01:24:37.266557Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:24:37.266557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OMyFLncXKoQQXEDUU6qYJCpMtVYNQcCZRSixxp8NSquivZFsAmhBPe3beUx3lnERJPnHPPk/THTtd2d5rrV8Bg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:24:37.267050Z","signed_message":"canonical_sha256_bytes"},"source_id":"2006.07280","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5360b2e8c12465124bf5c524423eb6768bf295cc924426fa3f1711f0dd225b39","sha256:28db45fcaf69992a982cf7fc4f167d09ca09a161193b9557076e5e70127ef3e1"],"state_sha256":"1e73885776d56645100824a997c00f05b57a1d44476406eb1ff9654bdc85e3d4"}