{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:JENZQWOBN4JNTNNTNTKR7YNLTI","short_pith_number":"pith:JENZQWOB","canonical_record":{"source":{"id":"2002.00014","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-01-31T19:00:01Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"76face9178652d86595836341e61be0ec1feededc92909e32fc5c8bdf928393d","abstract_canon_sha256":"5811c0a308597b783197775fcd45f28c9a5aa387acbeff993eebef0f80aa7688"},"schema_version":"1.0"},"canonical_sha256":"491b9859c16f12d9b5b36cd51fe1ab9a15dd033f7a0459c4f55a39a81d2b2f24","source":{"kind":"arxiv","id":"2002.00014","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.00014","created_at":"2026-07-05T01:05:42Z"},{"alias_kind":"arxiv_version","alias_value":"2002.00014v2","created_at":"2026-07-05T01:05:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.00014","created_at":"2026-07-05T01:05:42Z"},{"alias_kind":"pith_short_12","alias_value":"JENZQWOBN4JN","created_at":"2026-07-05T01:05:42Z"},{"alias_kind":"pith_short_16","alias_value":"JENZQWOBN4JNTNNT","created_at":"2026-07-05T01:05:42Z"},{"alias_kind":"pith_short_8","alias_value":"JENZQWOB","created_at":"2026-07-05T01:05:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:JENZQWOBN4JNTNNTNTKR7YNLTI","target":"record","payload":{"canonical_record":{"source":{"id":"2002.00014","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-01-31T19:00:01Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"76face9178652d86595836341e61be0ec1feededc92909e32fc5c8bdf928393d","abstract_canon_sha256":"5811c0a308597b783197775fcd45f28c9a5aa387acbeff993eebef0f80aa7688"},"schema_version":"1.0"},"canonical_sha256":"491b9859c16f12d9b5b36cd51fe1ab9a15dd033f7a0459c4f55a39a81d2b2f24","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:05:42.810800Z","signature_b64":"DrJVTk6dGJooRdjAURc56E8kZGZvjoFQegqeS32nDkiyegYrbRpe6/OMVach/ZtmvUydO/GwoWZC3gy5RgrpAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"491b9859c16f12d9b5b36cd51fe1ab9a15dd033f7a0459c4f55a39a81d2b2f24","last_reissued_at":"2026-07-05T01:05:42.810357Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:05:42.810357Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2002.00014","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":"2026-07-05T01:05:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W/Nk4/VTAC8BiZyqy2WrNc50bEIFB+jwpDgrxGqc9OQGHAdAdEOrjeD6cdw4Pq1GIZ6NOsvIKrdMAA3Tg8WPCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T16:19:44.014133Z"},"content_sha256":"5247887ac4a611c3fcbf8994a8b58658b4ab2d2fbdaf74651e5750b713d9b88d","schema_version":"1.0","event_id":"sha256:5247887ac4a611c3fcbf8994a8b58658b4ab2d2fbdaf74651e5750b713d9b88d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:JENZQWOBN4JNTNNTNTKR7YNLTI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Close Binary Companions to APOGEE DR16 Stars: 20,000 Binary-star Systems Across the Color-Magnitude Diagram","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Adrian M. Price-Whelan, Andr\\'es Almeida, Christian Nitschelm, D. A. Garc\\'ia-Hern\\'andez, David L. Nidever, David W. Hogg, Guy S. Stringfellow, Hannah Lewis, Hans-Walter Rix, Jennifer Sobeck, Joleen K. Carlberg, Jos\\'e G. Fern\\'andez-Trincado, Keivan G. Stassun, Nathan De Lee, Nicholas W. Troup, Paul J. Green, Pen\\'elope Longa-Pe\\~na, Peter M. Frinchaboy, Rachael L. Beaton, Rodolfo Barba, Sten Hasselquist, Steven R. Majewski, Timothy C. Beers","submitted_at":"2020-01-31T19:00:01Z","abstract_excerpt":"Many problems in contemporary astrophysics---from understanding the formation of black holes to untangling the chemical evolution of galaxies---rely on knowledge about binary stars. This, in turn, depends on discovery and characterization of binary companions for large numbers of different kinds of stars in different chemical and dynamical environments. Current stellar spectroscopic surveys observe hundreds of thousands to millions of stars with (typically) few observational epochs, which allows binary discovery but makes orbital characterization challenging. We use a custom Monte Carlo sample"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.00014","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2002.00014/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T01:05:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jefLUPnHkZOla6dod+yduQcCwzTYEK/Dtf/XyxnYhVz8xMc5yU5r6BLJoZrVoFUxK8mGcmPmKxFc176Aiw1LAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T16:19:44.014716Z"},"content_sha256":"a8112f7e8330523781c9a40960092a5d8572f823cce45d10d4a8e236e89fc487","schema_version":"1.0","event_id":"sha256:a8112f7e8330523781c9a40960092a5d8572f823cce45d10d4a8e236e89fc487"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JENZQWOBN4JNTNNTNTKR7YNLTI/bundle.json","state_url":"https://pith.science/pith/JENZQWOBN4JNTNNTNTKR7YNLTI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JENZQWOBN4JNTNNTNTKR7YNLTI/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":"2026-08-21T16:19:44Z","links":{"resolver":"https://pith.science/pith/JENZQWOBN4JNTNNTNTKR7YNLTI","bundle":"https://pith.science/pith/JENZQWOBN4JNTNNTNTKR7YNLTI/bundle.json","state":"https://pith.science/pith/JENZQWOBN4JNTNNTNTKR7YNLTI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JENZQWOBN4JNTNNTNTKR7YNLTI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:JENZQWOBN4JNTNNTNTKR7YNLTI","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":"5811c0a308597b783197775fcd45f28c9a5aa387acbeff993eebef0f80aa7688","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-01-31T19:00:01Z","title_canon_sha256":"76face9178652d86595836341e61be0ec1feededc92909e32fc5c8bdf928393d"},"schema_version":"1.0","source":{"id":"2002.00014","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.00014","created_at":"2026-07-05T01:05:42Z"},{"alias_kind":"arxiv_version","alias_value":"2002.00014v2","created_at":"2026-07-05T01:05:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.00014","created_at":"2026-07-05T01:05:42Z"},{"alias_kind":"pith_short_12","alias_value":"JENZQWOBN4JN","created_at":"2026-07-05T01:05:42Z"},{"alias_kind":"pith_short_16","alias_value":"JENZQWOBN4JNTNNT","created_at":"2026-07-05T01:05:42Z"},{"alias_kind":"pith_short_8","alias_value":"JENZQWOB","created_at":"2026-07-05T01:05:42Z"}],"graph_snapshots":[{"event_id":"sha256:a8112f7e8330523781c9a40960092a5d8572f823cce45d10d4a8e236e89fc487","target":"graph","created_at":"2026-07-05T01:05:42Z","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/2002.00014/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Many problems in contemporary astrophysics---from understanding the formation of black holes to untangling the chemical evolution of galaxies---rely on knowledge about binary stars. This, in turn, depends on discovery and characterization of binary companions for large numbers of different kinds of stars in different chemical and dynamical environments. Current stellar spectroscopic surveys observe hundreds of thousands to millions of stars with (typically) few observational epochs, which allows binary discovery but makes orbital characterization challenging. We use a custom Monte Carlo sample","authors_text":"Adrian M. Price-Whelan, Andr\\'es Almeida, Christian Nitschelm, D. A. Garc\\'ia-Hern\\'andez, David L. Nidever, David W. Hogg, Guy S. Stringfellow, Hannah Lewis, Hans-Walter Rix, Jennifer Sobeck, Joleen K. Carlberg, Jos\\'e G. Fern\\'andez-Trincado, Keivan G. Stassun, Nathan De Lee, Nicholas W. Troup, Paul J. Green, Pen\\'elope Longa-Pe\\~na, Peter M. Frinchaboy, Rachael L. Beaton, Rodolfo Barba, Sten Hasselquist, Steven R. Majewski, Timothy C. Beers","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-01-31T19:00:01Z","title":"Close Binary Companions to APOGEE DR16 Stars: 20,000 Binary-star Systems Across the Color-Magnitude Diagram"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.00014","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":"sha256:5247887ac4a611c3fcbf8994a8b58658b4ab2d2fbdaf74651e5750b713d9b88d","target":"record","created_at":"2026-07-05T01:05:42Z","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":"5811c0a308597b783197775fcd45f28c9a5aa387acbeff993eebef0f80aa7688","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-01-31T19:00:01Z","title_canon_sha256":"76face9178652d86595836341e61be0ec1feededc92909e32fc5c8bdf928393d"},"schema_version":"1.0","source":{"id":"2002.00014","kind":"arxiv","version":2}},"canonical_sha256":"491b9859c16f12d9b5b36cd51fe1ab9a15dd033f7a0459c4f55a39a81d2b2f24","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"491b9859c16f12d9b5b36cd51fe1ab9a15dd033f7a0459c4f55a39a81d2b2f24","first_computed_at":"2026-07-05T01:05:42.810357Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:05:42.810357Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DrJVTk6dGJooRdjAURc56E8kZGZvjoFQegqeS32nDkiyegYrbRpe6/OMVach/ZtmvUydO/GwoWZC3gy5RgrpAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:05:42.810800Z","signed_message":"canonical_sha256_bytes"},"source_id":"2002.00014","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5247887ac4a611c3fcbf8994a8b58658b4ab2d2fbdaf74651e5750b713d9b88d","sha256:a8112f7e8330523781c9a40960092a5d8572f823cce45d10d4a8e236e89fc487"],"state_sha256":"b0bbfcf9d095a4726c6f9cb6e1589e4047e31461bb6ecd7b7e746d94d4b4278e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mSbsAhkctlQnWrGCRTUEfLVc/fPf5W+WIhkVwMvqgwy9B+8R31cxIPRE55P1YBZ+tiiPir/mjAqlDUrFK0ILBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T16:19:44.019740Z","bundle_sha256":"5a2b4a449c9cf18204ef750b11835cf315c69cb2391a2783361b081fe7c358e1"}}