{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:FS3WVKSRNIINTJOPBHTLWBK3K5","short_pith_number":"pith:FS3WVKSR","canonical_record":{"source":{"id":"1801.01478","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-01-04T18:15:16Z","cross_cats_sorted":[],"title_canon_sha256":"e5e0e4dbf3548a445049a78651691f78041ad28ee474e317992fb534917c2973","abstract_canon_sha256":"ba66d37513dd19b07562e66381903772043c23001dc9394a2b66043f94288aaf"},"schema_version":"1.0"},"canonical_sha256":"2cb76aaa516a10d9a5cf09e6bb055b574de94cab7557264b90c34e81a4212fdb","source":{"kind":"arxiv","id":"1801.01478","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.01478","created_at":"2026-05-18T00:25:33Z"},{"alias_kind":"arxiv_version","alias_value":"1801.01478v2","created_at":"2026-05-18T00:25:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.01478","created_at":"2026-05-18T00:25:33Z"},{"alias_kind":"pith_short_12","alias_value":"FS3WVKSRNIIN","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"FS3WVKSRNIINTJOP","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"FS3WVKSR","created_at":"2026-05-18T12:32:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:FS3WVKSRNIINTJOPBHTLWBK3K5","target":"record","payload":{"canonical_record":{"source":{"id":"1801.01478","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-01-04T18:15:16Z","cross_cats_sorted":[],"title_canon_sha256":"e5e0e4dbf3548a445049a78651691f78041ad28ee474e317992fb534917c2973","abstract_canon_sha256":"ba66d37513dd19b07562e66381903772043c23001dc9394a2b66043f94288aaf"},"schema_version":"1.0"},"canonical_sha256":"2cb76aaa516a10d9a5cf09e6bb055b574de94cab7557264b90c34e81a4212fdb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:25:33.387888Z","signature_b64":"FK+Wh5alLsamg1pITmtJ/72hTKy/yozEeb7AhQX52Jroa01cNg02wpDE4KSAgVJ6oWcImNWe4whuvba93ETiAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2cb76aaa516a10d9a5cf09e6bb055b574de94cab7557264b90c34e81a4212fdb","last_reissued_at":"2026-05-18T00:25:33.387112Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:25:33.387112Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.01478","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":"2026-05-18T00:25:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"64wP7ODF2v24L3fcrNTZ3ld+9Dt9jZ89KY21D+7K7cAcfzff4LP+jZ1aL4I/Ppx8E6QZgLdF/2y9Fsm2+RO0Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T06:48:37.673211Z"},"content_sha256":"ba9d8a1390006f95a85b923c6bb70c5d881b90aec5c123b30887a5f138764c2f","schema_version":"1.0","event_id":"sha256:ba9d8a1390006f95a85b923c6bb70c5d881b90aec5c123b30887a5f138764c2f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:FS3WVKSRNIINTJOPBHTLWBK3K5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Infrared photometry of the dwarf nova V2051 Ophiuchi: I - The mass donor star and the distance","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Eduardo Wojcikiewicz, Raymundo Baptista, Tiago Ribeiro","submitted_at":"2018-01-04T18:15:16Z","abstract_excerpt":"We report the analysis of time-series of infrared $JHK_s$ photometry of the dwarf nova V2051 Oph in quiescence. We modelled the ellipsoidal variations caused by the distorted mass-donor star to infer its $JHK_s$ fluxes. From its infrared colors we estimate a spectral type of $M(8.0\\pm 1.5)$ and an equivalent blackbody temperature of $T_\\mathrm{BB}=(2700\\pm270)\\,K$. We used the Barnes & Evans relation to infer a photometric parallax distance of $d_\\mathrm{BE}=(102\\pm16)$ pc to the binary. At this short distance, the corresponding accretion disc temperatures in outburst are too low to be explain"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.01478","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":"2026-05-18T00:25:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sxf+uS+SjLp0WIgsy6TzF5BLXE2PNOVXsC8iMqqLE2zmYkN+AGcPgHx2BV09v4CA5x71evURxg/nQM+CH1sPCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T06:48:37.673571Z"},"content_sha256":"2c0f2009150b821cf4a05512f5c4c93f6af7c1b420cc32e06ab5ba063a78dd9a","schema_version":"1.0","event_id":"sha256:2c0f2009150b821cf4a05512f5c4c93f6af7c1b420cc32e06ab5ba063a78dd9a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FS3WVKSRNIINTJOPBHTLWBK3K5/bundle.json","state_url":"https://pith.science/pith/FS3WVKSRNIINTJOPBHTLWBK3K5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FS3WVKSRNIINTJOPBHTLWBK3K5/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":"2026-06-01T06:48:37Z","links":{"resolver":"https://pith.science/pith/FS3WVKSRNIINTJOPBHTLWBK3K5","bundle":"https://pith.science/pith/FS3WVKSRNIINTJOPBHTLWBK3K5/bundle.json","state":"https://pith.science/pith/FS3WVKSRNIINTJOPBHTLWBK3K5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FS3WVKSRNIINTJOPBHTLWBK3K5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:FS3WVKSRNIINTJOPBHTLWBK3K5","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":"ba66d37513dd19b07562e66381903772043c23001dc9394a2b66043f94288aaf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-01-04T18:15:16Z","title_canon_sha256":"e5e0e4dbf3548a445049a78651691f78041ad28ee474e317992fb534917c2973"},"schema_version":"1.0","source":{"id":"1801.01478","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.01478","created_at":"2026-05-18T00:25:33Z"},{"alias_kind":"arxiv_version","alias_value":"1801.01478v2","created_at":"2026-05-18T00:25:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.01478","created_at":"2026-05-18T00:25:33Z"},{"alias_kind":"pith_short_12","alias_value":"FS3WVKSRNIIN","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"FS3WVKSRNIINTJOP","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"FS3WVKSR","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:2c0f2009150b821cf4a05512f5c4c93f6af7c1b420cc32e06ab5ba063a78dd9a","target":"graph","created_at":"2026-05-18T00:25:33Z","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 report the analysis of time-series of infrared $JHK_s$ photometry of the dwarf nova V2051 Oph in quiescence. We modelled the ellipsoidal variations caused by the distorted mass-donor star to infer its $JHK_s$ fluxes. From its infrared colors we estimate a spectral type of $M(8.0\\pm 1.5)$ and an equivalent blackbody temperature of $T_\\mathrm{BB}=(2700\\pm270)\\,K$. We used the Barnes & Evans relation to infer a photometric parallax distance of $d_\\mathrm{BE}=(102\\pm16)$ pc to the binary. At this short distance, the corresponding accretion disc temperatures in outburst are too low to be explain","authors_text":"Eduardo Wojcikiewicz, Raymundo Baptista, Tiago Ribeiro","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-01-04T18:15:16Z","title":"Infrared photometry of the dwarf nova V2051 Ophiuchi: I - The mass donor star and the distance"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.01478","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:ba9d8a1390006f95a85b923c6bb70c5d881b90aec5c123b30887a5f138764c2f","target":"record","created_at":"2026-05-18T00:25:33Z","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":"ba66d37513dd19b07562e66381903772043c23001dc9394a2b66043f94288aaf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-01-04T18:15:16Z","title_canon_sha256":"e5e0e4dbf3548a445049a78651691f78041ad28ee474e317992fb534917c2973"},"schema_version":"1.0","source":{"id":"1801.01478","kind":"arxiv","version":2}},"canonical_sha256":"2cb76aaa516a10d9a5cf09e6bb055b574de94cab7557264b90c34e81a4212fdb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2cb76aaa516a10d9a5cf09e6bb055b574de94cab7557264b90c34e81a4212fdb","first_computed_at":"2026-05-18T00:25:33.387112Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:25:33.387112Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FK+Wh5alLsamg1pITmtJ/72hTKy/yozEeb7AhQX52Jroa01cNg02wpDE4KSAgVJ6oWcImNWe4whuvba93ETiAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:25:33.387888Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.01478","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ba9d8a1390006f95a85b923c6bb70c5d881b90aec5c123b30887a5f138764c2f","sha256:2c0f2009150b821cf4a05512f5c4c93f6af7c1b420cc32e06ab5ba063a78dd9a"],"state_sha256":"7043eefce1accae10a60f72e7613f85d2526450e16d51f219bb8f780e4d9c019"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j8S53f/H/CRXEkzF+aJQRpC+8pQbQSWcULUtYZBr3yTqHe12C92S/Z/9xsZb1aP/+eMnhL3FLqw8gHTs/HTQDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T06:48:37.675802Z","bundle_sha256":"03fd2348e80f802c91ee28398276afe827ddb70d566ce7a009fdda40572b2921"}}