{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:2WUHAH7XCOX65X4E676HUR5FPI","short_pith_number":"pith:2WUHAH7X","canonical_record":{"source":{"id":"1406.0535","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-02T21:00:27Z","cross_cats_sorted":[],"title_canon_sha256":"91d7544804d23048022caaf46e3bc226c1460d42a21bb3081ec55badab490d56","abstract_canon_sha256":"d7858aa3003716065d0f442da188fb9c31c1b1d40110a03b46ce9d09d22f71a3"},"schema_version":"1.0"},"canonical_sha256":"d5a8701ff713afeedf84f7fc7a47a57a36c7da6f1fd904ce41d41635baa59696","source":{"kind":"arxiv","id":"1406.0535","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.0535","created_at":"2026-05-18T01:43:02Z"},{"alias_kind":"arxiv_version","alias_value":"1406.0535v2","created_at":"2026-05-18T01:43:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.0535","created_at":"2026-05-18T01:43:02Z"},{"alias_kind":"pith_short_12","alias_value":"2WUHAH7XCOX6","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"2WUHAH7XCOX65X4E","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"2WUHAH7X","created_at":"2026-05-18T12:28:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:2WUHAH7XCOX65X4E676HUR5FPI","target":"record","payload":{"canonical_record":{"source":{"id":"1406.0535","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-02T21:00:27Z","cross_cats_sorted":[],"title_canon_sha256":"91d7544804d23048022caaf46e3bc226c1460d42a21bb3081ec55badab490d56","abstract_canon_sha256":"d7858aa3003716065d0f442da188fb9c31c1b1d40110a03b46ce9d09d22f71a3"},"schema_version":"1.0"},"canonical_sha256":"d5a8701ff713afeedf84f7fc7a47a57a36c7da6f1fd904ce41d41635baa59696","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:02.725761Z","signature_b64":"O5WbySdkzIP2EqiSqtskqwQA0LnvIxPuXaCRRQkD4x/kxsi92+hNXryghFVTPFFA1pJgfGUZi8PbRP1aer4cBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d5a8701ff713afeedf84f7fc7a47a57a36c7da6f1fd904ce41d41635baa59696","last_reissued_at":"2026-05-18T01:43:02.725403Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:02.725403Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1406.0535","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":"2026-05-18T01:43:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y0ckuke6RuR6V6uTPsUqtUrc4rQMUoIgHuBSNCSjCQGPtJmPK7cIKeORnoC6x1rxeEDVCqFmY8R4IXC7kGKNDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:58:30.991350Z"},"content_sha256":"b4428cdb0fde200df23c1882770a7fc792b38a2e930f16d665d3b439f66c174e","schema_version":"1.0","event_id":"sha256:b4428cdb0fde200df23c1882770a7fc792b38a2e930f16d665d3b439f66c174e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:2WUHAH7XCOX65X4E676HUR5FPI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The AstraLux Multiplicity Survey: Extension to Late M-dwarfs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Carolina Bergfors, Felix Hormuth, Markus Janson, Natalia Kudryavtseva, Stefan Hippler, Thomas Henning, Wolfgang Brandner","submitted_at":"2014-06-02T21:00:27Z","abstract_excerpt":"The distribution of multiplicity among low-mass stars is a key issue to understanding the formation of stars and brown dwarfs, and recent surveys have yielded large enough samples of nearby low-mass stars to study this issue statistically to good accuracy. Previously, we have presented a multiplicity study of ~700 early/mid M-type stars observed with the AstraLux high-resolution Lucky Imaging cameras. Here, we extend the study of multiplicity in M-type stars through studying 286 nearby mid/late M-type stars, bridging the gap between our previous study and multiplicity studies of brown dwarfs. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.0535","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":"2026-05-18T01:43:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pFnDZCbweLaXG3pFcD++K3yySnpS57RkPSr+yyp5WQ9zHPph/2zqQ0m8nN/VM4O34DUw5od9N1yabMQv8sJkBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:58:30.992030Z"},"content_sha256":"2b4b9b75abfbb7725644210224fcdd60553ba4a22374249d8230058a9299a531","schema_version":"1.0","event_id":"sha256:2b4b9b75abfbb7725644210224fcdd60553ba4a22374249d8230058a9299a531"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2WUHAH7XCOX65X4E676HUR5FPI/bundle.json","state_url":"https://pith.science/pith/2WUHAH7XCOX65X4E676HUR5FPI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2WUHAH7XCOX65X4E676HUR5FPI/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":"2026-05-28T19:58:30Z","links":{"resolver":"https://pith.science/pith/2WUHAH7XCOX65X4E676HUR5FPI","bundle":"https://pith.science/pith/2WUHAH7XCOX65X4E676HUR5FPI/bundle.json","state":"https://pith.science/pith/2WUHAH7XCOX65X4E676HUR5FPI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2WUHAH7XCOX65X4E676HUR5FPI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:2WUHAH7XCOX65X4E676HUR5FPI","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":"d7858aa3003716065d0f442da188fb9c31c1b1d40110a03b46ce9d09d22f71a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-02T21:00:27Z","title_canon_sha256":"91d7544804d23048022caaf46e3bc226c1460d42a21bb3081ec55badab490d56"},"schema_version":"1.0","source":{"id":"1406.0535","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.0535","created_at":"2026-05-18T01:43:02Z"},{"alias_kind":"arxiv_version","alias_value":"1406.0535v2","created_at":"2026-05-18T01:43:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.0535","created_at":"2026-05-18T01:43:02Z"},{"alias_kind":"pith_short_12","alias_value":"2WUHAH7XCOX6","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"2WUHAH7XCOX65X4E","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"2WUHAH7X","created_at":"2026-05-18T12:28:11Z"}],"graph_snapshots":[{"event_id":"sha256:2b4b9b75abfbb7725644210224fcdd60553ba4a22374249d8230058a9299a531","target":"graph","created_at":"2026-05-18T01:43:02Z","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":"The distribution of multiplicity among low-mass stars is a key issue to understanding the formation of stars and brown dwarfs, and recent surveys have yielded large enough samples of nearby low-mass stars to study this issue statistically to good accuracy. Previously, we have presented a multiplicity study of ~700 early/mid M-type stars observed with the AstraLux high-resolution Lucky Imaging cameras. Here, we extend the study of multiplicity in M-type stars through studying 286 nearby mid/late M-type stars, bridging the gap between our previous study and multiplicity studies of brown dwarfs. ","authors_text":"Carolina Bergfors, Felix Hormuth, Markus Janson, Natalia Kudryavtseva, Stefan Hippler, Thomas Henning, Wolfgang Brandner","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-02T21:00:27Z","title":"The AstraLux Multiplicity Survey: Extension to Late M-dwarfs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.0535","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:b4428cdb0fde200df23c1882770a7fc792b38a2e930f16d665d3b439f66c174e","target":"record","created_at":"2026-05-18T01:43:02Z","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":"d7858aa3003716065d0f442da188fb9c31c1b1d40110a03b46ce9d09d22f71a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-02T21:00:27Z","title_canon_sha256":"91d7544804d23048022caaf46e3bc226c1460d42a21bb3081ec55badab490d56"},"schema_version":"1.0","source":{"id":"1406.0535","kind":"arxiv","version":2}},"canonical_sha256":"d5a8701ff713afeedf84f7fc7a47a57a36c7da6f1fd904ce41d41635baa59696","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d5a8701ff713afeedf84f7fc7a47a57a36c7da6f1fd904ce41d41635baa59696","first_computed_at":"2026-05-18T01:43:02.725403Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:02.725403Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"O5WbySdkzIP2EqiSqtskqwQA0LnvIxPuXaCRRQkD4x/kxsi92+hNXryghFVTPFFA1pJgfGUZi8PbRP1aer4cBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:02.725761Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.0535","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b4428cdb0fde200df23c1882770a7fc792b38a2e930f16d665d3b439f66c174e","sha256:2b4b9b75abfbb7725644210224fcdd60553ba4a22374249d8230058a9299a531"],"state_sha256":"b7dcfc2b49425761bfb26180576525512d16563d6857c2426100e587fa7f342c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4vGoXWkVl/4OufX5k3ntgxdpVH5nVjHGKd47Hwj7wM7YHfhT1AcKp7TB4RjZOLJlc6/mA0fp/d0fjF/+nBseBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T19:58:30.995663Z","bundle_sha256":"0e0215d405892cbcabeaa71b37242f49d8adfa10384f73075b834d46823c8eed"}}