{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:32555IF4YJAGOHUI252Q4DQIJB","short_pith_number":"pith:32555IF4","canonical_record":{"source":{"id":"2506.20868","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-06-25T22:38:06Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"f6142fe0d816bb89842163338e0d2ea5c6f2b8780a4793950e1944bdf9e25b71","abstract_canon_sha256":"92161e753805a40317252570b64172d167329b88291df577104d2d546779d3e0"},"schema_version":"1.0"},"canonical_sha256":"debbdea0bcc240671e88d7750e0e084857b656e3eeeac3498f7df9d05b3b39a5","source":{"kind":"arxiv","id":"2506.20868","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.20868","created_at":"2026-07-05T11:27:35Z"},{"alias_kind":"arxiv_version","alias_value":"2506.20868v1","created_at":"2026-07-05T11:27:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.20868","created_at":"2026-07-05T11:27:35Z"},{"alias_kind":"pith_short_12","alias_value":"32555IF4YJAG","created_at":"2026-07-05T11:27:35Z"},{"alias_kind":"pith_short_16","alias_value":"32555IF4YJAGOHUI","created_at":"2026-07-05T11:27:35Z"},{"alias_kind":"pith_short_8","alias_value":"32555IF4","created_at":"2026-07-05T11:27:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:32555IF4YJAGOHUI252Q4DQIJB","target":"record","payload":{"canonical_record":{"source":{"id":"2506.20868","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-06-25T22:38:06Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"f6142fe0d816bb89842163338e0d2ea5c6f2b8780a4793950e1944bdf9e25b71","abstract_canon_sha256":"92161e753805a40317252570b64172d167329b88291df577104d2d546779d3e0"},"schema_version":"1.0"},"canonical_sha256":"debbdea0bcc240671e88d7750e0e084857b656e3eeeac3498f7df9d05b3b39a5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:27:35.290644Z","signature_b64":"ZTBA/AhCOSMzhI2HeukJJmfhOgo5sIKMks28Fed1RfyZ/WEAYC23gD4m5belt5zqCyTfrEdS57cMq2z3WgD0Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"debbdea0bcc240671e88d7750e0e084857b656e3eeeac3498f7df9d05b3b39a5","last_reissued_at":"2026-07-05T11:27:35.290226Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:27:35.290226Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.20868","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":"2026-07-05T11:27:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g+xhslsLt2d3lo2HfVFQOXJlc0Ej7gs/MBsq+/j0Sdtsi1rfwea06b4xiVhU2Ivvd1mCIVsidYbkIEvq3qeyDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T16:30:54.333807Z"},"content_sha256":"66bc6a35a911eadebe26d40ac40aaf87429bd6492bd6c5ef240be24d023ac059","schema_version":"1.0","event_id":"sha256:66bc6a35a911eadebe26d40ac40aaf87429bd6492bd6c5ef240be24d023ac059"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:32555IF4YJAGOHUI252Q4DQIJB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Physics Of Eclipsing Binaries. IX. Spectroscopic module","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.SR","authors_text":"Andrej Pr\\v{s}a, Kyle E. Conroy, Michael Abdul-Masih, Miroslav Bro\\v{z}","submitted_at":"2025-06-25T22:38:06Z","abstract_excerpt":"Spectroscopic observations constrain the fundamental properties of stellar atmospheres, in particular, the effective temperature, the gravitational acceleration, or the metallicity. In this work, we describe the spectroscopic module for Phoebe, which allows for modelling of spectra, either normalized, or in absolute units (${\\rm W}\\,{\\rm m}^{-2}\\,{\\rm m}^{-1}$). The module is based on extensive grids of synthetic spectra, taken from literature, which are interpolated and integrated over the surface. As an approximation, we assume that limb darkening is given by an analytical law, while other e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.20868","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/2506.20868/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":"2026-07-05T11:27:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0b+pMggJ+dMx/dgJ17+PDdvcwhNtukp84lJyDvSkO/+6zNtx34jfeMQi28A/4Lb57n/cAfkcf91SAB/23opjDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T16:30:54.334313Z"},"content_sha256":"b42f6fbf6945a44930bb41bb43c80a5084917c654362e0cadd3732cb5f16e198","schema_version":"1.0","event_id":"sha256:b42f6fbf6945a44930bb41bb43c80a5084917c654362e0cadd3732cb5f16e198"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/32555IF4YJAGOHUI252Q4DQIJB/bundle.json","state_url":"https://pith.science/pith/32555IF4YJAGOHUI252Q4DQIJB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/32555IF4YJAGOHUI252Q4DQIJB/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":"2026-08-11T16:30:54Z","links":{"resolver":"https://pith.science/pith/32555IF4YJAGOHUI252Q4DQIJB","bundle":"https://pith.science/pith/32555IF4YJAGOHUI252Q4DQIJB/bundle.json","state":"https://pith.science/pith/32555IF4YJAGOHUI252Q4DQIJB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/32555IF4YJAGOHUI252Q4DQIJB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:32555IF4YJAGOHUI252Q4DQIJB","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":"92161e753805a40317252570b64172d167329b88291df577104d2d546779d3e0","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-06-25T22:38:06Z","title_canon_sha256":"f6142fe0d816bb89842163338e0d2ea5c6f2b8780a4793950e1944bdf9e25b71"},"schema_version":"1.0","source":{"id":"2506.20868","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.20868","created_at":"2026-07-05T11:27:35Z"},{"alias_kind":"arxiv_version","alias_value":"2506.20868v1","created_at":"2026-07-05T11:27:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.20868","created_at":"2026-07-05T11:27:35Z"},{"alias_kind":"pith_short_12","alias_value":"32555IF4YJAG","created_at":"2026-07-05T11:27:35Z"},{"alias_kind":"pith_short_16","alias_value":"32555IF4YJAGOHUI","created_at":"2026-07-05T11:27:35Z"},{"alias_kind":"pith_short_8","alias_value":"32555IF4","created_at":"2026-07-05T11:27:35Z"}],"graph_snapshots":[{"event_id":"sha256:b42f6fbf6945a44930bb41bb43c80a5084917c654362e0cadd3732cb5f16e198","target":"graph","created_at":"2026-07-05T11:27:35Z","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/2506.20868/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Spectroscopic observations constrain the fundamental properties of stellar atmospheres, in particular, the effective temperature, the gravitational acceleration, or the metallicity. In this work, we describe the spectroscopic module for Phoebe, which allows for modelling of spectra, either normalized, or in absolute units (${\\rm W}\\,{\\rm m}^{-2}\\,{\\rm m}^{-1}$). The module is based on extensive grids of synthetic spectra, taken from literature, which are interpolated and integrated over the surface. As an approximation, we assume that limb darkening is given by an analytical law, while other e","authors_text":"Andrej Pr\\v{s}a, Kyle E. Conroy, Michael Abdul-Masih, Miroslav Bro\\v{z}","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-06-25T22:38:06Z","title":"Physics Of Eclipsing Binaries. IX. Spectroscopic module"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.20868","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":"sha256:66bc6a35a911eadebe26d40ac40aaf87429bd6492bd6c5ef240be24d023ac059","target":"record","created_at":"2026-07-05T11:27:35Z","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":"92161e753805a40317252570b64172d167329b88291df577104d2d546779d3e0","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-06-25T22:38:06Z","title_canon_sha256":"f6142fe0d816bb89842163338e0d2ea5c6f2b8780a4793950e1944bdf9e25b71"},"schema_version":"1.0","source":{"id":"2506.20868","kind":"arxiv","version":1}},"canonical_sha256":"debbdea0bcc240671e88d7750e0e084857b656e3eeeac3498f7df9d05b3b39a5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"debbdea0bcc240671e88d7750e0e084857b656e3eeeac3498f7df9d05b3b39a5","first_computed_at":"2026-07-05T11:27:35.290226Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:27:35.290226Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZTBA/AhCOSMzhI2HeukJJmfhOgo5sIKMks28Fed1RfyZ/WEAYC23gD4m5belt5zqCyTfrEdS57cMq2z3WgD0Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T11:27:35.290644Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.20868","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66bc6a35a911eadebe26d40ac40aaf87429bd6492bd6c5ef240be24d023ac059","sha256:b42f6fbf6945a44930bb41bb43c80a5084917c654362e0cadd3732cb5f16e198"],"state_sha256":"2f4a8d53e6b53b65b0d398f777851938c5365998745a0dbe64e9da88ecdffd45"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cp5fwdLZ8VbV4Q/xu2qLca8MdFwqbdnhr1//X9kalfhf/l7wortUMWBTRAc8m74PwUis/6ZHeG5NDxizBYYzAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T16:30:54.339503Z","bundle_sha256":"0b5b4c5a34ccd41578c045770079437502d9f0b97940ee8b572bb61984396714"}}