{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:7SRH4WGUHXHGSJJB76QUYTFECE","short_pith_number":"pith:7SRH4WGU","canonical_record":{"source":{"id":"1506.03051","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-06-09T19:22:43Z","cross_cats_sorted":[],"title_canon_sha256":"eaa33457ecd73108e078d063af95a40dec1722d15d88a2939a980b0da46b53e7","abstract_canon_sha256":"e53ae6f92d6a12e22c5828da3a82fb732e40d9f5da4125df746fa1595a1d2339"},"schema_version":"1.0"},"canonical_sha256":"fca27e58d43dce692521ffa14c4ca4113e0a1a228f835cb4ad4fcd156af82139","source":{"kind":"arxiv","id":"1506.03051","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.03051","created_at":"2026-05-18T01:35:47Z"},{"alias_kind":"arxiv_version","alias_value":"1506.03051v2","created_at":"2026-05-18T01:35:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.03051","created_at":"2026-05-18T01:35:47Z"},{"alias_kind":"pith_short_12","alias_value":"7SRH4WGUHXHG","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"7SRH4WGUHXHGSJJB","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"7SRH4WGU","created_at":"2026-05-18T12:29:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:7SRH4WGUHXHGSJJB76QUYTFECE","target":"record","payload":{"canonical_record":{"source":{"id":"1506.03051","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-06-09T19:22:43Z","cross_cats_sorted":[],"title_canon_sha256":"eaa33457ecd73108e078d063af95a40dec1722d15d88a2939a980b0da46b53e7","abstract_canon_sha256":"e53ae6f92d6a12e22c5828da3a82fb732e40d9f5da4125df746fa1595a1d2339"},"schema_version":"1.0"},"canonical_sha256":"fca27e58d43dce692521ffa14c4ca4113e0a1a228f835cb4ad4fcd156af82139","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:47.193036Z","signature_b64":"ij8jJatd2/tTr8PTGxERhc7CZM02IbA0RpCa0xFx2X6xaAX2BY+1Xtm0WjxsGZi6grhq7G3/G3pYsigF7SRkDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fca27e58d43dce692521ffa14c4ca4113e0a1a228f835cb4ad4fcd156af82139","last_reissued_at":"2026-05-18T01:35:47.192367Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:47.192367Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1506.03051","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":"2026-05-18T01:35:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Png1pYNatNvOtLSfa/oQVxC9QddodHQqcH3R+VFST1HKBjGa613N4fx3DbcPfbnfZUJjq6FRisbUzOXm39TaAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T01:36:01.021852Z"},"content_sha256":"a7b65adb97303ce4c67572fb9d05098d5625a418981bd1b6236b5227185b2724","schema_version":"1.0","event_id":"sha256:a7b65adb97303ce4c67572fb9d05098d5625a418981bd1b6236b5227185b2724"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:7SRH4WGUHXHGSJJB76QUYTFECE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing the Masses and Radii of Donor Stars in Eclipsing X-ray Binaries with the Swift Burst Alert Telescope","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Hans A. Krimm, Joel B. Coley, Robin H. D. Corbet","submitted_at":"2015-06-09T19:22:43Z","abstract_excerpt":"Physical parameters of both the mass donor and compact object can be constrained in X-ray binaries with well-defined eclipses, as our survey of wind-fed supergiant X-ray binaries (SGXBs) IGR J16393-4643, IGR J16418-4532, IGR J16479-4514, IGR J18027-2016 and XTE J1855-026 reveals. Using the orbital period and Kepler's third law, we express the eclipse half-angle in terms of radius, inclination angle and the sum of the masses. Pulse-timing and radial velocity curves can give masses of both the donor and compact object as in the case of the \"double-lined\" binaries IGR J18027-2016 and XTE J1855-02"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.03051","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":"2026-05-18T01:35:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"36sLtS587ZwNxF8SzBE6+6t6O9GnakWnKqWhUuVYVH88CBUTUkb33q06ScOe5m9tayfuBFkR07ilfk/4+ckKDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T01:36:01.022253Z"},"content_sha256":"b8e5aec32c3820a2b832e2a7714b460a99a8714b9e0ab69e4a50a1de38260e31","schema_version":"1.0","event_id":"sha256:b8e5aec32c3820a2b832e2a7714b460a99a8714b9e0ab69e4a50a1de38260e31"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7SRH4WGUHXHGSJJB76QUYTFECE/bundle.json","state_url":"https://pith.science/pith/7SRH4WGUHXHGSJJB76QUYTFECE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7SRH4WGUHXHGSJJB76QUYTFECE/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":"2026-05-27T01:36:01Z","links":{"resolver":"https://pith.science/pith/7SRH4WGUHXHGSJJB76QUYTFECE","bundle":"https://pith.science/pith/7SRH4WGUHXHGSJJB76QUYTFECE/bundle.json","state":"https://pith.science/pith/7SRH4WGUHXHGSJJB76QUYTFECE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7SRH4WGUHXHGSJJB76QUYTFECE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:7SRH4WGUHXHGSJJB76QUYTFECE","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":"e53ae6f92d6a12e22c5828da3a82fb732e40d9f5da4125df746fa1595a1d2339","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-06-09T19:22:43Z","title_canon_sha256":"eaa33457ecd73108e078d063af95a40dec1722d15d88a2939a980b0da46b53e7"},"schema_version":"1.0","source":{"id":"1506.03051","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.03051","created_at":"2026-05-18T01:35:47Z"},{"alias_kind":"arxiv_version","alias_value":"1506.03051v2","created_at":"2026-05-18T01:35:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.03051","created_at":"2026-05-18T01:35:47Z"},{"alias_kind":"pith_short_12","alias_value":"7SRH4WGUHXHG","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"7SRH4WGUHXHGSJJB","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"7SRH4WGU","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:b8e5aec32c3820a2b832e2a7714b460a99a8714b9e0ab69e4a50a1de38260e31","target":"graph","created_at":"2026-05-18T01:35:47Z","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":"Physical parameters of both the mass donor and compact object can be constrained in X-ray binaries with well-defined eclipses, as our survey of wind-fed supergiant X-ray binaries (SGXBs) IGR J16393-4643, IGR J16418-4532, IGR J16479-4514, IGR J18027-2016 and XTE J1855-026 reveals. Using the orbital period and Kepler's third law, we express the eclipse half-angle in terms of radius, inclination angle and the sum of the masses. Pulse-timing and radial velocity curves can give masses of both the donor and compact object as in the case of the \"double-lined\" binaries IGR J18027-2016 and XTE J1855-02","authors_text":"Hans A. Krimm, Joel B. Coley, Robin H. D. Corbet","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-06-09T19:22:43Z","title":"Probing the Masses and Radii of Donor Stars in Eclipsing X-ray Binaries with the Swift Burst Alert Telescope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.03051","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:a7b65adb97303ce4c67572fb9d05098d5625a418981bd1b6236b5227185b2724","target":"record","created_at":"2026-05-18T01:35:47Z","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":"e53ae6f92d6a12e22c5828da3a82fb732e40d9f5da4125df746fa1595a1d2339","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-06-09T19:22:43Z","title_canon_sha256":"eaa33457ecd73108e078d063af95a40dec1722d15d88a2939a980b0da46b53e7"},"schema_version":"1.0","source":{"id":"1506.03051","kind":"arxiv","version":2}},"canonical_sha256":"fca27e58d43dce692521ffa14c4ca4113e0a1a228f835cb4ad4fcd156af82139","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fca27e58d43dce692521ffa14c4ca4113e0a1a228f835cb4ad4fcd156af82139","first_computed_at":"2026-05-18T01:35:47.192367Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:47.192367Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ij8jJatd2/tTr8PTGxERhc7CZM02IbA0RpCa0xFx2X6xaAX2BY+1Xtm0WjxsGZi6grhq7G3/G3pYsigF7SRkDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:47.193036Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.03051","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a7b65adb97303ce4c67572fb9d05098d5625a418981bd1b6236b5227185b2724","sha256:b8e5aec32c3820a2b832e2a7714b460a99a8714b9e0ab69e4a50a1de38260e31"],"state_sha256":"ac4a41ca46431542f0021564f46961ca01b042f15390ecaf2e8cd596958c4cce"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OnnYSknGFNpCimP0Q5QXiO/IqbTaAenx/vkVNwrJfJLIhceilxeNGLPFlg/FeUW04FGA+49lrGnN7WTxS10VBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T01:36:01.024636Z","bundle_sha256":"bcb19767b925a5d779f238090f27c5c88159d4b1564429bb17b739ec4744c526"}}