{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:ZCONYEAGJYZ6VTCDZT7WJCOERS","short_pith_number":"pith:ZCONYEAG","canonical_record":{"source":{"id":"1702.08313","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-02-27T15:09:17Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"411f4d23f6f530b088761ffcdc634d68efe0c379f01598fde581e38f1e63a11d","abstract_canon_sha256":"0ba4ece5437a5acaa3239ca409a70fa64c7ed7f5004cf5f9e4fb39ef47b179db"},"schema_version":"1.0"},"canonical_sha256":"c89cdc10064e33eacc43ccff6489c48caa94a3360b0a755bb970daddddeaa44c","source":{"kind":"arxiv","id":"1702.08313","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.08313","created_at":"2026-05-18T00:46:37Z"},{"alias_kind":"arxiv_version","alias_value":"1702.08313v1","created_at":"2026-05-18T00:46:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.08313","created_at":"2026-05-18T00:46:37Z"},{"alias_kind":"pith_short_12","alias_value":"ZCONYEAGJYZ6","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZCONYEAGJYZ6VTCD","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZCONYEAG","created_at":"2026-05-18T12:31:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:ZCONYEAGJYZ6VTCDZT7WJCOERS","target":"record","payload":{"canonical_record":{"source":{"id":"1702.08313","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-02-27T15:09:17Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"411f4d23f6f530b088761ffcdc634d68efe0c379f01598fde581e38f1e63a11d","abstract_canon_sha256":"0ba4ece5437a5acaa3239ca409a70fa64c7ed7f5004cf5f9e4fb39ef47b179db"},"schema_version":"1.0"},"canonical_sha256":"c89cdc10064e33eacc43ccff6489c48caa94a3360b0a755bb970daddddeaa44c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:46:37.193559Z","signature_b64":"sdPFTZDeM1D+K3qK43fL6raMP8Z8jeRuKRtWLBgrc6R1D5YG0u0vD/sHUr6e55q6fHfpBOqUMdJmWxGKtPhuBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c89cdc10064e33eacc43ccff6489c48caa94a3360b0a755bb970daddddeaa44c","last_reissued_at":"2026-05-18T00:46:37.192850Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:46:37.192850Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1702.08313","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":"2026-05-18T00:46:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WZXDt/nkeYaNjlIDfb/UovD1vzKni9/g0e0ZTVXOjP9WIjwdqx7Paooc+kyRy+JEEPmeAo90LACzKG0uxzLsAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T14:43:57.943306Z"},"content_sha256":"5c6d2f97a5f7b34bcf23ecc061462b5159b8927837ef17953f6ac7a1e77c1b85","schema_version":"1.0","event_id":"sha256:5c6d2f97a5f7b34bcf23ecc061462b5159b8927837ef17953f6ac7a1e77c1b85"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:ZCONYEAGJYZ6VTCDZT7WJCOERS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"XMM-Newton observation of MV Lyr and the sandwiched model confirmation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"A.A. Nucita, A. Dobrotka, J.-U. Ness, S. Mineshige","submitted_at":"2017-02-27T15:09:17Z","abstract_excerpt":"We present spectral and timing analyses of simultaneous X-ray and UV observations of the VY Scl system MV Lyr taken by XMM-Newton, containing the longest continuous X-ray+UV light curve and highest signal-to-noise X-ray (EPIC) spectrum to date. The RGS spectrum displays emission lines plus continuum, confirming model approaches to be based on thermal plasma models. We test the sandwiched model based on fast variability that predicts a geometrically thick corona that surrounds an inner geometrically thin disc. The EPIC spectra are consistent with either a cooling flow model or a 2-T collisional"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.08313","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":"2026-05-18T00:46:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hR7pZGV5E/qisc86lt7bvlA20x+j0X6A1y1+tpe7BfLWixJIK8nfbofTTxD644lCIpYawwfHFHv4v67cdgzOCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T14:43:57.943664Z"},"content_sha256":"517c0c14d48b66f58f69ef6ef0c936fda77704c54f9a0fef804f52e71f228c7a","schema_version":"1.0","event_id":"sha256:517c0c14d48b66f58f69ef6ef0c936fda77704c54f9a0fef804f52e71f228c7a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZCONYEAGJYZ6VTCDZT7WJCOERS/bundle.json","state_url":"https://pith.science/pith/ZCONYEAGJYZ6VTCDZT7WJCOERS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZCONYEAGJYZ6VTCDZT7WJCOERS/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":"2026-06-11T14:43:57Z","links":{"resolver":"https://pith.science/pith/ZCONYEAGJYZ6VTCDZT7WJCOERS","bundle":"https://pith.science/pith/ZCONYEAGJYZ6VTCDZT7WJCOERS/bundle.json","state":"https://pith.science/pith/ZCONYEAGJYZ6VTCDZT7WJCOERS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZCONYEAGJYZ6VTCDZT7WJCOERS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:ZCONYEAGJYZ6VTCDZT7WJCOERS","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":"0ba4ece5437a5acaa3239ca409a70fa64c7ed7f5004cf5f9e4fb39ef47b179db","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-02-27T15:09:17Z","title_canon_sha256":"411f4d23f6f530b088761ffcdc634d68efe0c379f01598fde581e38f1e63a11d"},"schema_version":"1.0","source":{"id":"1702.08313","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.08313","created_at":"2026-05-18T00:46:37Z"},{"alias_kind":"arxiv_version","alias_value":"1702.08313v1","created_at":"2026-05-18T00:46:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.08313","created_at":"2026-05-18T00:46:37Z"},{"alias_kind":"pith_short_12","alias_value":"ZCONYEAGJYZ6","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZCONYEAGJYZ6VTCD","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZCONYEAG","created_at":"2026-05-18T12:31:59Z"}],"graph_snapshots":[{"event_id":"sha256:517c0c14d48b66f58f69ef6ef0c936fda77704c54f9a0fef804f52e71f228c7a","target":"graph","created_at":"2026-05-18T00:46:37Z","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":"We present spectral and timing analyses of simultaneous X-ray and UV observations of the VY Scl system MV Lyr taken by XMM-Newton, containing the longest continuous X-ray+UV light curve and highest signal-to-noise X-ray (EPIC) spectrum to date. The RGS spectrum displays emission lines plus continuum, confirming model approaches to be based on thermal plasma models. We test the sandwiched model based on fast variability that predicts a geometrically thick corona that surrounds an inner geometrically thin disc. The EPIC spectra are consistent with either a cooling flow model or a 2-T collisional","authors_text":"A.A. Nucita, A. Dobrotka, J.-U. Ness, S. Mineshige","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-02-27T15:09:17Z","title":"XMM-Newton observation of MV Lyr and the sandwiched model confirmation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.08313","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":"sha256:5c6d2f97a5f7b34bcf23ecc061462b5159b8927837ef17953f6ac7a1e77c1b85","target":"record","created_at":"2026-05-18T00:46:37Z","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":"0ba4ece5437a5acaa3239ca409a70fa64c7ed7f5004cf5f9e4fb39ef47b179db","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-02-27T15:09:17Z","title_canon_sha256":"411f4d23f6f530b088761ffcdc634d68efe0c379f01598fde581e38f1e63a11d"},"schema_version":"1.0","source":{"id":"1702.08313","kind":"arxiv","version":1}},"canonical_sha256":"c89cdc10064e33eacc43ccff6489c48caa94a3360b0a755bb970daddddeaa44c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c89cdc10064e33eacc43ccff6489c48caa94a3360b0a755bb970daddddeaa44c","first_computed_at":"2026-05-18T00:46:37.192850Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:46:37.192850Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sdPFTZDeM1D+K3qK43fL6raMP8Z8jeRuKRtWLBgrc6R1D5YG0u0vD/sHUr6e55q6fHfpBOqUMdJmWxGKtPhuBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:46:37.193559Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.08313","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5c6d2f97a5f7b34bcf23ecc061462b5159b8927837ef17953f6ac7a1e77c1b85","sha256:517c0c14d48b66f58f69ef6ef0c936fda77704c54f9a0fef804f52e71f228c7a"],"state_sha256":"ea9072197bc395d14926ca70f1ea36d92e80639761c79911d44f5eb51520c97b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hqUdEdxKe0Qu684b/BO4GfjnDlTzAUv45k/EuWX9tS7Z2UHS4+nrpJrCZRjkYHTQAMcR2FoIYVoyt6ncACamCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T14:43:57.945582Z","bundle_sha256":"fb6d3423c61ec31c2666beda4be57c0a235e8b84f7eec47b84593318f0ae47f0"}}