{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:FJSGW6BV37U6XZJIGEVUWXFYQH","short_pith_number":"pith:FJSGW6BV","canonical_record":{"source":{"id":"1905.08542","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-21T10:59:17Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"53297ba1f4cf6a735e867a0dd505aa3b4959fd38abdb94dee6ce5711b36dbee3","abstract_canon_sha256":"5a4ee9c4be8773396e14ec2dbd1e4832ee6200b5d9836ca809192b95e098f115"},"schema_version":"1.0"},"canonical_sha256":"2a646b7835dfe9ebe528312b4b5cb881e22beb38c72841824a03b46e31fd8e13","source":{"kind":"arxiv","id":"1905.08542","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.08542","created_at":"2026-05-17T23:43:00Z"},{"alias_kind":"arxiv_version","alias_value":"1905.08542v1","created_at":"2026-05-17T23:43:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.08542","created_at":"2026-05-17T23:43:00Z"},{"alias_kind":"pith_short_12","alias_value":"FJSGW6BV37U6","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"FJSGW6BV37U6XZJI","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"FJSGW6BV","created_at":"2026-05-18T12:33:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:FJSGW6BV37U6XZJIGEVUWXFYQH","target":"record","payload":{"canonical_record":{"source":{"id":"1905.08542","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-21T10:59:17Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"53297ba1f4cf6a735e867a0dd505aa3b4959fd38abdb94dee6ce5711b36dbee3","abstract_canon_sha256":"5a4ee9c4be8773396e14ec2dbd1e4832ee6200b5d9836ca809192b95e098f115"},"schema_version":"1.0"},"canonical_sha256":"2a646b7835dfe9ebe528312b4b5cb881e22beb38c72841824a03b46e31fd8e13","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:43:00.176261Z","signature_b64":"JQK8qUkUjCQQiAU0wyVVZ1MzGDydVwnfKKtbIZKF2apdBVHeRunrDS6/0Vmn3Y3+Ka42fs5VKvigjU2qk2gsBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2a646b7835dfe9ebe528312b4b5cb881e22beb38c72841824a03b46e31fd8e13","last_reissued_at":"2026-05-17T23:43:00.175852Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:43:00.175852Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.08542","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:43:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AJc6UX6tNQ4e9Rb5ZnPpr3m/drwxcHnBxBdMjNts+W20fT3MBWDskGhodaEKriwbPw+kLNI6qgs08+NFpEFGAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T03:38:34.353476Z"},"content_sha256":"4ecde65d33f2add3a997078dfa78a534cf50f15058069d44173268c3ff3614c6","schema_version":"1.0","event_id":"sha256:4ecde65d33f2add3a997078dfa78a534cf50f15058069d44173268c3ff3614c6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:FJSGW6BV37U6XZJIGEVUWXFYQH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Triage of Astrometric Binaries - how to find triple systems and dormant black-hole secondaries in the Gaia orbits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.SR","authors_text":"Berry Holl, Sahar Shahaf, Simchon Faigler, Tsevi Mazeh","submitted_at":"2019-05-21T10:59:17Z","abstract_excerpt":"Preparing for the expected wealth of Gaia detections, we consider here a simple algorithm for classifying unresolved astrometric binaries with main-sequence (MS) primary into three classes: binaries with a probable MS secondary, with two possible values for the mass ratio; probable hierarchical triple MS systems with an astrometric secondary as a close binary, with a limited range of mass-ratio values; and binaries with a compact-object secondary, with a minimal value of the mass ratio. This is done by defining a unit-less observational parameter 'Astrometric Mass-Ratio Function' (AMRF), $\\mat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.08542","kind":"arxiv","version":1},"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":"2026-05-17T23:43:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1w30BUT3xib4qvWGRYwMbSx/+VCyo04/Mq6VbjSXh9Vx4kledxFRYKb/KuWJEqMDc7NvDvnrmAwD2mzL64GNBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T03:38:34.353860Z"},"content_sha256":"1d39fb2f94417433c7bacbb2dd1eaed9371a14cefecea4460dbdbc7dd2f997eb","schema_version":"1.0","event_id":"sha256:1d39fb2f94417433c7bacbb2dd1eaed9371a14cefecea4460dbdbc7dd2f997eb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FJSGW6BV37U6XZJIGEVUWXFYQH/bundle.json","state_url":"https://pith.science/pith/FJSGW6BV37U6XZJIGEVUWXFYQH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FJSGW6BV37U6XZJIGEVUWXFYQH/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":"2026-06-03T03:38:34Z","links":{"resolver":"https://pith.science/pith/FJSGW6BV37U6XZJIGEVUWXFYQH","bundle":"https://pith.science/pith/FJSGW6BV37U6XZJIGEVUWXFYQH/bundle.json","state":"https://pith.science/pith/FJSGW6BV37U6XZJIGEVUWXFYQH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FJSGW6BV37U6XZJIGEVUWXFYQH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:FJSGW6BV37U6XZJIGEVUWXFYQH","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":"5a4ee9c4be8773396e14ec2dbd1e4832ee6200b5d9836ca809192b95e098f115","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-21T10:59:17Z","title_canon_sha256":"53297ba1f4cf6a735e867a0dd505aa3b4959fd38abdb94dee6ce5711b36dbee3"},"schema_version":"1.0","source":{"id":"1905.08542","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.08542","created_at":"2026-05-17T23:43:00Z"},{"alias_kind":"arxiv_version","alias_value":"1905.08542v1","created_at":"2026-05-17T23:43:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.08542","created_at":"2026-05-17T23:43:00Z"},{"alias_kind":"pith_short_12","alias_value":"FJSGW6BV37U6","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"FJSGW6BV37U6XZJI","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"FJSGW6BV","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:1d39fb2f94417433c7bacbb2dd1eaed9371a14cefecea4460dbdbc7dd2f997eb","target":"graph","created_at":"2026-05-17T23:43:00Z","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":"Preparing for the expected wealth of Gaia detections, we consider here a simple algorithm for classifying unresolved astrometric binaries with main-sequence (MS) primary into three classes: binaries with a probable MS secondary, with two possible values for the mass ratio; probable hierarchical triple MS systems with an astrometric secondary as a close binary, with a limited range of mass-ratio values; and binaries with a compact-object secondary, with a minimal value of the mass ratio. This is done by defining a unit-less observational parameter 'Astrometric Mass-Ratio Function' (AMRF), $\\mat","authors_text":"Berry Holl, Sahar Shahaf, Simchon Faigler, Tsevi Mazeh","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-21T10:59:17Z","title":"Triage of Astrometric Binaries - how to find triple systems and dormant black-hole secondaries in the Gaia orbits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.08542","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":"sha256:4ecde65d33f2add3a997078dfa78a534cf50f15058069d44173268c3ff3614c6","target":"record","created_at":"2026-05-17T23:43:00Z","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":"5a4ee9c4be8773396e14ec2dbd1e4832ee6200b5d9836ca809192b95e098f115","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-21T10:59:17Z","title_canon_sha256":"53297ba1f4cf6a735e867a0dd505aa3b4959fd38abdb94dee6ce5711b36dbee3"},"schema_version":"1.0","source":{"id":"1905.08542","kind":"arxiv","version":1}},"canonical_sha256":"2a646b7835dfe9ebe528312b4b5cb881e22beb38c72841824a03b46e31fd8e13","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2a646b7835dfe9ebe528312b4b5cb881e22beb38c72841824a03b46e31fd8e13","first_computed_at":"2026-05-17T23:43:00.175852Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:43:00.175852Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JQK8qUkUjCQQiAU0wyVVZ1MzGDydVwnfKKtbIZKF2apdBVHeRunrDS6/0Vmn3Y3+Ka42fs5VKvigjU2qk2gsBQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:43:00.176261Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.08542","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4ecde65d33f2add3a997078dfa78a534cf50f15058069d44173268c3ff3614c6","sha256:1d39fb2f94417433c7bacbb2dd1eaed9371a14cefecea4460dbdbc7dd2f997eb"],"state_sha256":"2f63d1231b42fa1d896caa1aaa4ddaf9eb79091e2cde52e1094da7e04942bcc2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XcxfN3KirzWqyC0STBEUaxQZD8mwyYvX1wmq0hD9Jc9yaErhK//kgUrsaHyrpQ0wGe1MoZvY0NueBbjdvSJwBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T03:38:34.355976Z","bundle_sha256":"d22607e8184d51d1a4ef2dbb4cb925ecd338a497c202a70a368c412e42314fe5"}}