{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:3ZJGR3FLLLZABYFH4KMHTFEWDO","short_pith_number":"pith:3ZJGR3FL","canonical_record":{"source":{"id":"1801.08547","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-01-25T19:00:04Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"6b9b61d44407643c2d2a2e1828b4dcf934a6957e284386ec294be72dcd87ff24","abstract_canon_sha256":"6cf2a643ae2f7c7d18e3afaa107ba3b7ff4c843c812d416182267c20af266c1a"},"schema_version":"1.0"},"canonical_sha256":"de5268ecab5af200e0a7e2987994961bae29198ef120a461ddaebb82b54e0373","source":{"kind":"arxiv","id":"1801.08547","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.08547","created_at":"2026-05-18T00:17:07Z"},{"alias_kind":"arxiv_version","alias_value":"1801.08547v2","created_at":"2026-05-18T00:17:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.08547","created_at":"2026-05-18T00:17:07Z"},{"alias_kind":"pith_short_12","alias_value":"3ZJGR3FLLLZA","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"3ZJGR3FLLLZABYFH","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"3ZJGR3FL","created_at":"2026-05-18T12:32:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:3ZJGR3FLLLZABYFH4KMHTFEWDO","target":"record","payload":{"canonical_record":{"source":{"id":"1801.08547","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-01-25T19:00:04Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"6b9b61d44407643c2d2a2e1828b4dcf934a6957e284386ec294be72dcd87ff24","abstract_canon_sha256":"6cf2a643ae2f7c7d18e3afaa107ba3b7ff4c843c812d416182267c20af266c1a"},"schema_version":"1.0"},"canonical_sha256":"de5268ecab5af200e0a7e2987994961bae29198ef120a461ddaebb82b54e0373","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:17:07.493499Z","signature_b64":"6ABT+XXt6FXj3QYy8yRhbEZHxIsR5ap/kIqTKWkDV4ADlCBjGAr6Tyf+Ki1bx5V9IUXXc1XqV5whcE3DYl+MCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"de5268ecab5af200e0a7e2987994961bae29198ef120a461ddaebb82b54e0373","last_reissued_at":"2026-05-18T00:17:07.492632Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:17:07.492632Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.08547","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":"2026-05-18T00:17:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4P943rSym8DMqyDnNybBGFzXM7Di6yBA+AQy8wRcHhYsatyufNetUDvGN4/VI5D/BshZQUXqeWakhdNlNKSJBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T17:40:59.494194Z"},"content_sha256":"a02a2417b02a25c78e334c7652e4a43e68b42e7d24d7a603965ef31ec4e56610","schema_version":"1.0","event_id":"sha256:a02a2417b02a25c78e334c7652e4a43e68b42e7d24d7a603965ef31ec4e56610"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:3ZJGR3FLLLZABYFH4KMHTFEWDO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Inferring binary and trinary stellar populations in photometric and astrometric surveys","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Axel Widmark, Boris Leistedt, David W. Hogg","submitted_at":"2018-01-25T19:00:04Z","abstract_excerpt":"Multiple stellar systems are ubiquitous in the Milky Way, but are often unresolved and seen as single objects in spectroscopic, photometric, and astrometric surveys. Yet, modeling them is essential for developing a full understanding of large surveys such as Gaia, and connecting them to stellar and Galactic models. In this paper we address this problem by jointly fitting the Gaia and 2MASS photometric and astrometric data using a data-driven Bayesian hierarchical model that includes populations of binary and trinary systems. This allows us to classify observations into singles, binaries, and t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.08547","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":"2026-05-18T00:17:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3vsBR+9FnfKpQMXYWN9wUffk+XvPkNL7pp5AA99Hod9DfkYRJstt+oa91HcWQkrQUYI670mFPWpJ5CssalCkCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T17:40:59.494570Z"},"content_sha256":"787c1c6ec31c8bfdcd3222b1a05a14156ef2cbad0a48a3d873e3e415ade216af","schema_version":"1.0","event_id":"sha256:787c1c6ec31c8bfdcd3222b1a05a14156ef2cbad0a48a3d873e3e415ade216af"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3ZJGR3FLLLZABYFH4KMHTFEWDO/bundle.json","state_url":"https://pith.science/pith/3ZJGR3FLLLZABYFH4KMHTFEWDO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3ZJGR3FLLLZABYFH4KMHTFEWDO/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":"2026-05-20T17:40:59Z","links":{"resolver":"https://pith.science/pith/3ZJGR3FLLLZABYFH4KMHTFEWDO","bundle":"https://pith.science/pith/3ZJGR3FLLLZABYFH4KMHTFEWDO/bundle.json","state":"https://pith.science/pith/3ZJGR3FLLLZABYFH4KMHTFEWDO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3ZJGR3FLLLZABYFH4KMHTFEWDO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:3ZJGR3FLLLZABYFH4KMHTFEWDO","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":"6cf2a643ae2f7c7d18e3afaa107ba3b7ff4c843c812d416182267c20af266c1a","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-01-25T19:00:04Z","title_canon_sha256":"6b9b61d44407643c2d2a2e1828b4dcf934a6957e284386ec294be72dcd87ff24"},"schema_version":"1.0","source":{"id":"1801.08547","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.08547","created_at":"2026-05-18T00:17:07Z"},{"alias_kind":"arxiv_version","alias_value":"1801.08547v2","created_at":"2026-05-18T00:17:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.08547","created_at":"2026-05-18T00:17:07Z"},{"alias_kind":"pith_short_12","alias_value":"3ZJGR3FLLLZA","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"3ZJGR3FLLLZABYFH","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"3ZJGR3FL","created_at":"2026-05-18T12:32:05Z"}],"graph_snapshots":[{"event_id":"sha256:787c1c6ec31c8bfdcd3222b1a05a14156ef2cbad0a48a3d873e3e415ade216af","target":"graph","created_at":"2026-05-18T00:17:07Z","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":"Multiple stellar systems are ubiquitous in the Milky Way, but are often unresolved and seen as single objects in spectroscopic, photometric, and astrometric surveys. Yet, modeling them is essential for developing a full understanding of large surveys such as Gaia, and connecting them to stellar and Galactic models. In this paper we address this problem by jointly fitting the Gaia and 2MASS photometric and astrometric data using a data-driven Bayesian hierarchical model that includes populations of binary and trinary systems. This allows us to classify observations into singles, binaries, and t","authors_text":"Axel Widmark, Boris Leistedt, David W. Hogg","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-01-25T19:00:04Z","title":"Inferring binary and trinary stellar populations in photometric and astrometric surveys"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.08547","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:a02a2417b02a25c78e334c7652e4a43e68b42e7d24d7a603965ef31ec4e56610","target":"record","created_at":"2026-05-18T00:17:07Z","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":"6cf2a643ae2f7c7d18e3afaa107ba3b7ff4c843c812d416182267c20af266c1a","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-01-25T19:00:04Z","title_canon_sha256":"6b9b61d44407643c2d2a2e1828b4dcf934a6957e284386ec294be72dcd87ff24"},"schema_version":"1.0","source":{"id":"1801.08547","kind":"arxiv","version":2}},"canonical_sha256":"de5268ecab5af200e0a7e2987994961bae29198ef120a461ddaebb82b54e0373","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"de5268ecab5af200e0a7e2987994961bae29198ef120a461ddaebb82b54e0373","first_computed_at":"2026-05-18T00:17:07.492632Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:17:07.492632Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6ABT+XXt6FXj3QYy8yRhbEZHxIsR5ap/kIqTKWkDV4ADlCBjGAr6Tyf+Ki1bx5V9IUXXc1XqV5whcE3DYl+MCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:17:07.493499Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.08547","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a02a2417b02a25c78e334c7652e4a43e68b42e7d24d7a603965ef31ec4e56610","sha256:787c1c6ec31c8bfdcd3222b1a05a14156ef2cbad0a48a3d873e3e415ade216af"],"state_sha256":"7bd5fd55793e6fcca552ef0965eacd734fde43a6eae64fe58c163ce5754ac39d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uGEmyxVtgbBIGRuRPVrFmSPIt1evKhyOHdwJebi9wGb679OKAGgxrWmHhNJaKBb+r3DK88RSw+UDCsCXIwFaDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T17:40:59.496717Z","bundle_sha256":"ebd8956caff0d7d9be649b6413caa0f99e7f27da5fc14deb1ce8fa3b96b59f4c"}}