{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:TD5C6ZGBER7SYMOZHOOW2CS25N","short_pith_number":"pith:TD5C6ZGB","schema_version":"1.0","canonical_sha256":"98fa2f64c1247f2c31d93b9d6d0a5aeb728c94f5105903e3109b82a71d82cd07","source":{"kind":"arxiv","id":"1205.6867","version":2},"attestation_state":"computed","paper":{"title":"Minimizing the average distance to a closest leaf in a phylogenetic tree","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.DM"],"primary_cat":"q-bio.PE","authors_text":"Aaron Gallagher, Connor McCoy, Frederick A. Matsen","submitted_at":"2012-05-31T01:41:37Z","abstract_excerpt":"When performing an analysis on a collection of molecular sequences, it can be convenient to reduce the number of sequences under consideration while maintaining some characteristic of a larger collection of sequences. For example, one may wish to select a subset of high-quality sequences that represent the diversity of a larger collection of sequences. One may also wish to specialize a large database of characterized \"reference sequences\" to a smaller subset that is as close as possible on average to a collection of \"query sequences\" of interest. Such a representative subset can be useful when"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1205.6867","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2012-05-31T01:41:37Z","cross_cats_sorted":["cs.DM"],"title_canon_sha256":"ac7d8e488c174c20496d7ae7fb6fb9e541769111d9290550030607ba2db7f00b","abstract_canon_sha256":"5d2018f63822feea6ee839482129117dce695a0033cc3a1ef4616d0dd8f63362"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:46:34.422103Z","signature_b64":"P/Qm1wdQJLTD+hd3o/CM/BKAHjO8b8iWXyIoDRW+CxZh5moozl+7C+se8YYcBa98NkieteTTCzXBfES+cST5DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"98fa2f64c1247f2c31d93b9d6d0a5aeb728c94f5105903e3109b82a71d82cd07","last_reissued_at":"2026-05-18T03:46:34.420883Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:46:34.420883Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Minimizing the average distance to a closest leaf in a phylogenetic tree","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.DM"],"primary_cat":"q-bio.PE","authors_text":"Aaron Gallagher, Connor McCoy, Frederick A. Matsen","submitted_at":"2012-05-31T01:41:37Z","abstract_excerpt":"When performing an analysis on a collection of molecular sequences, it can be convenient to reduce the number of sequences under consideration while maintaining some characteristic of a larger collection of sequences. For example, one may wish to select a subset of high-quality sequences that represent the diversity of a larger collection of sequences. One may also wish to specialize a large database of characterized \"reference sequences\" to a smaller subset that is as close as possible on average to a collection of \"query sequences\" of interest. Such a representative subset can be useful when"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.6867","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1205.6867","created_at":"2026-05-18T03:46:34.421183+00:00"},{"alias_kind":"arxiv_version","alias_value":"1205.6867v2","created_at":"2026-05-18T03:46:34.421183+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.6867","created_at":"2026-05-18T03:46:34.421183+00:00"},{"alias_kind":"pith_short_12","alias_value":"TD5C6ZGBER7S","created_at":"2026-05-18T12:27:23.164592+00:00"},{"alias_kind":"pith_short_16","alias_value":"TD5C6ZGBER7SYMOZ","created_at":"2026-05-18T12:27:23.164592+00:00"},{"alias_kind":"pith_short_8","alias_value":"TD5C6ZGB","created_at":"2026-05-18T12:27:23.164592+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/TD5C6ZGBER7SYMOZHOOW2CS25N","json":"https://pith.science/pith/TD5C6ZGBER7SYMOZHOOW2CS25N.json","graph_json":"https://pith.science/api/pith-number/TD5C6ZGBER7SYMOZHOOW2CS25N/graph.json","events_json":"https://pith.science/api/pith-number/TD5C6ZGBER7SYMOZHOOW2CS25N/events.json","paper":"https://pith.science/paper/TD5C6ZGB"},"agent_actions":{"view_html":"https://pith.science/pith/TD5C6ZGBER7SYMOZHOOW2CS25N","download_json":"https://pith.science/pith/TD5C6ZGBER7SYMOZHOOW2CS25N.json","view_paper":"https://pith.science/paper/TD5C6ZGB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1205.6867&json=true","fetch_graph":"https://pith.science/api/pith-number/TD5C6ZGBER7SYMOZHOOW2CS25N/graph.json","fetch_events":"https://pith.science/api/pith-number/TD5C6ZGBER7SYMOZHOOW2CS25N/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TD5C6ZGBER7SYMOZHOOW2CS25N/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TD5C6ZGBER7SYMOZHOOW2CS25N/action/storage_attestation","attest_author":"https://pith.science/pith/TD5C6ZGBER7SYMOZHOOW2CS25N/action/author_attestation","sign_citation":"https://pith.science/pith/TD5C6ZGBER7SYMOZHOOW2CS25N/action/citation_signature","submit_replication":"https://pith.science/pith/TD5C6ZGBER7SYMOZHOOW2CS25N/action/replication_record"}},"created_at":"2026-05-18T03:46:34.421183+00:00","updated_at":"2026-05-18T03:46:34.421183+00:00"}