{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:HUF4CT55CECY3Y5I6NTC3BZPVA","short_pith_number":"pith:HUF4CT55","canonical_record":{"source":{"id":"1908.02719","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-08-07T16:41:06Z","cross_cats_sorted":[],"title_canon_sha256":"2f51b8a343c1ca126df31f50003d4285d1a41766e5d79f457bd761a1283caa34","abstract_canon_sha256":"844c5ec3a6c564ecb4a8d5c13ac44875f1f4468839f8e241704596e1cc288b53"},"schema_version":"1.0"},"canonical_sha256":"3d0bc14fbd11058de3a8f3662d872fa83e95e7c5fc1c479cded3db7bbf46200e","source":{"kind":"arxiv","id":"1908.02719","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.02719","created_at":"2026-07-05T00:05:13Z"},{"alias_kind":"arxiv_version","alias_value":"1908.02719v1","created_at":"2026-07-05T00:05:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.02719","created_at":"2026-07-05T00:05:13Z"},{"alias_kind":"pith_short_12","alias_value":"HUF4CT55CECY","created_at":"2026-07-05T00:05:13Z"},{"alias_kind":"pith_short_16","alias_value":"HUF4CT55CECY3Y5I","created_at":"2026-07-05T00:05:13Z"},{"alias_kind":"pith_short_8","alias_value":"HUF4CT55","created_at":"2026-07-05T00:05:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:HUF4CT55CECY3Y5I6NTC3BZPVA","target":"record","payload":{"canonical_record":{"source":{"id":"1908.02719","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-08-07T16:41:06Z","cross_cats_sorted":[],"title_canon_sha256":"2f51b8a343c1ca126df31f50003d4285d1a41766e5d79f457bd761a1283caa34","abstract_canon_sha256":"844c5ec3a6c564ecb4a8d5c13ac44875f1f4468839f8e241704596e1cc288b53"},"schema_version":"1.0"},"canonical_sha256":"3d0bc14fbd11058de3a8f3662d872fa83e95e7c5fc1c479cded3db7bbf46200e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:05:13.194627Z","signature_b64":"KPhRfzUgi6MFG71oKeaZSThZBhOQX5I9jtIrq16s5G4VxLC4tCdkyVTrR183SCYilr8MddWScSF8dgAqhSQcBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3d0bc14fbd11058de3a8f3662d872fa83e95e7c5fc1c479cded3db7bbf46200e","last_reissued_at":"2026-07-05T00:05:13.194273Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:05:13.194273Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.02719","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":"2026-07-05T00:05:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/+ICPa6JwDYwkGYZnhVAOXaooEqy5SKZXsOttFIlL7U5Z0JrTba9n8SGjktuwF9i3ILWsQarO7K+Me6vcSdNAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T07:39:46.915860Z"},"content_sha256":"6e8a268ce74adfbd75cdca65bf54e8d66d0bfe03317f4343b991347e5d55b16e","schema_version":"1.0","event_id":"sha256:6e8a268ce74adfbd75cdca65bf54e8d66d0bfe03317f4343b991347e5d55b16e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:HUF4CT55CECY3Y5I6NTC3BZPVA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Properties and nature of Be stars 31. The binary nature, light variability, physical elements, and emission-line changes of HD~81357","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"D. Kor\\v{c}\\'akov'a, D. Ru\\v{z}djak, D. Sudar, H. Bo\\v{z}i\\'c, L. Kotkov\\'a, M. Bro\\v{z}, M. \\v{S}lechta, P. Harmanec, P. Koubsk\\'y, P. \\v{S}koda, S. Yang, V. Votruba, Y. Fr\\'emat","submitted_at":"2019-08-07T16:41:06Z","abstract_excerpt":"Reliable determination of the basic physical properties of hot emission-line binaries with Roche-lobe filling secondaries is important for developing the theory of mass exchange in binaries. It is not easy, however, due to the presence of circumstellar matter. Here, we report the first detailed investigation of a new representative of this class of binaries, HD~81357, based on the analysis of spectra and photometry from several observatories. HD~81357 was found to be a double-lined spectroscopic binary and an ellipsoidal variable seen under an intermediate orbital inclination of $\\sim(63\\pm5)^"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.02719","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1908.02719/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":"2026-07-05T00:05:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xQrl1ILonMSHRv0JVhhXVsxNH75vNIil+27Q4qWP6pMnN6sXEpn9Q/XfKPvDOXv0ZwjTLyMUrdrsAcyhBbu9Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T07:39:46.916428Z"},"content_sha256":"7c3f3496afe4ddfb107625711dfa31c7ccace70d5475737e0eed70f7db52eb2b","schema_version":"1.0","event_id":"sha256:7c3f3496afe4ddfb107625711dfa31c7ccace70d5475737e0eed70f7db52eb2b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HUF4CT55CECY3Y5I6NTC3BZPVA/bundle.json","state_url":"https://pith.science/pith/HUF4CT55CECY3Y5I6NTC3BZPVA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HUF4CT55CECY3Y5I6NTC3BZPVA/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":"2026-08-16T07:39:46Z","links":{"resolver":"https://pith.science/pith/HUF4CT55CECY3Y5I6NTC3BZPVA","bundle":"https://pith.science/pith/HUF4CT55CECY3Y5I6NTC3BZPVA/bundle.json","state":"https://pith.science/pith/HUF4CT55CECY3Y5I6NTC3BZPVA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HUF4CT55CECY3Y5I6NTC3BZPVA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:HUF4CT55CECY3Y5I6NTC3BZPVA","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":"844c5ec3a6c564ecb4a8d5c13ac44875f1f4468839f8e241704596e1cc288b53","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-08-07T16:41:06Z","title_canon_sha256":"2f51b8a343c1ca126df31f50003d4285d1a41766e5d79f457bd761a1283caa34"},"schema_version":"1.0","source":{"id":"1908.02719","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.02719","created_at":"2026-07-05T00:05:13Z"},{"alias_kind":"arxiv_version","alias_value":"1908.02719v1","created_at":"2026-07-05T00:05:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.02719","created_at":"2026-07-05T00:05:13Z"},{"alias_kind":"pith_short_12","alias_value":"HUF4CT55CECY","created_at":"2026-07-05T00:05:13Z"},{"alias_kind":"pith_short_16","alias_value":"HUF4CT55CECY3Y5I","created_at":"2026-07-05T00:05:13Z"},{"alias_kind":"pith_short_8","alias_value":"HUF4CT55","created_at":"2026-07-05T00:05:13Z"}],"graph_snapshots":[{"event_id":"sha256:7c3f3496afe4ddfb107625711dfa31c7ccace70d5475737e0eed70f7db52eb2b","target":"graph","created_at":"2026-07-05T00:05:13Z","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/1908.02719/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Reliable determination of the basic physical properties of hot emission-line binaries with Roche-lobe filling secondaries is important for developing the theory of mass exchange in binaries. It is not easy, however, due to the presence of circumstellar matter. Here, we report the first detailed investigation of a new representative of this class of binaries, HD~81357, based on the analysis of spectra and photometry from several observatories. HD~81357 was found to be a double-lined spectroscopic binary and an ellipsoidal variable seen under an intermediate orbital inclination of $\\sim(63\\pm5)^","authors_text":"D. Kor\\v{c}\\'akov'a, D. Ru\\v{z}djak, D. Sudar, H. Bo\\v{z}i\\'c, L. Kotkov\\'a, M. Bro\\v{z}, M. \\v{S}lechta, P. Harmanec, P. Koubsk\\'y, P. \\v{S}koda, S. Yang, V. Votruba, Y. Fr\\'emat","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-08-07T16:41:06Z","title":"Properties and nature of Be stars 31. The binary nature, light variability, physical elements, and emission-line changes of HD~81357"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.02719","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":"sha256:6e8a268ce74adfbd75cdca65bf54e8d66d0bfe03317f4343b991347e5d55b16e","target":"record","created_at":"2026-07-05T00:05:13Z","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":"844c5ec3a6c564ecb4a8d5c13ac44875f1f4468839f8e241704596e1cc288b53","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-08-07T16:41:06Z","title_canon_sha256":"2f51b8a343c1ca126df31f50003d4285d1a41766e5d79f457bd761a1283caa34"},"schema_version":"1.0","source":{"id":"1908.02719","kind":"arxiv","version":1}},"canonical_sha256":"3d0bc14fbd11058de3a8f3662d872fa83e95e7c5fc1c479cded3db7bbf46200e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3d0bc14fbd11058de3a8f3662d872fa83e95e7c5fc1c479cded3db7bbf46200e","first_computed_at":"2026-07-05T00:05:13.194273Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:05:13.194273Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KPhRfzUgi6MFG71oKeaZSThZBhOQX5I9jtIrq16s5G4VxLC4tCdkyVTrR183SCYilr8MddWScSF8dgAqhSQcBw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:05:13.194627Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.02719","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6e8a268ce74adfbd75cdca65bf54e8d66d0bfe03317f4343b991347e5d55b16e","sha256:7c3f3496afe4ddfb107625711dfa31c7ccace70d5475737e0eed70f7db52eb2b"],"state_sha256":"643e197535f782626ea14d5f64500769bef58504fc1fd049cbe99ed919a6bad1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1PzBXZFONFr19VVcwHBQAJeIs9oww3811c9+pDM6LZyNQyg9F1gQNcw5MPo+CSmUTF38wEZgCie7g9c3m/mVDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T07:39:46.921589Z","bundle_sha256":"b30d2df987f57ffc0397f4c417ecbf2684ed703991e6858b4f86f4383e3b670d"}}