{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:YTTW5E5T5X6RI3YVT3XVFYL3T2","short_pith_number":"pith:YTTW5E5T","canonical_record":{"source":{"id":"1811.04118","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-11-09T19:50:39Z","cross_cats_sorted":[],"title_canon_sha256":"d4353a8fc98025657b79e9a1aa3c082a46926bbd017cf50173767f846e534f28","abstract_canon_sha256":"305897384df41e5e830bb174a239df8d93fe09c1a710bd85560ebad9c490c266"},"schema_version":"1.0"},"canonical_sha256":"c4e76e93b3edfd146f159eef52e17b9e8de20c42d22810db14308383a445f3c9","source":{"kind":"arxiv","id":"1811.04118","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.04118","created_at":"2026-05-17T23:56:44Z"},{"alias_kind":"arxiv_version","alias_value":"1811.04118v3","created_at":"2026-05-17T23:56:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.04118","created_at":"2026-05-17T23:56:44Z"},{"alias_kind":"pith_short_12","alias_value":"YTTW5E5T5X6R","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"YTTW5E5T5X6RI3YV","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"YTTW5E5T","created_at":"2026-05-18T12:33:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:YTTW5E5T5X6RI3YVT3XVFYL3T2","target":"record","payload":{"canonical_record":{"source":{"id":"1811.04118","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-11-09T19:50:39Z","cross_cats_sorted":[],"title_canon_sha256":"d4353a8fc98025657b79e9a1aa3c082a46926bbd017cf50173767f846e534f28","abstract_canon_sha256":"305897384df41e5e830bb174a239df8d93fe09c1a710bd85560ebad9c490c266"},"schema_version":"1.0"},"canonical_sha256":"c4e76e93b3edfd146f159eef52e17b9e8de20c42d22810db14308383a445f3c9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:56:44.968619Z","signature_b64":"Q+1Jc5lJ0PL1HAwHIw+0TD1AyiVcK+z4Op3Yf2Xiav89JpOlVzmljn969oa8L3TNMqOaCZeIcGagxChvmu4CAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c4e76e93b3edfd146f159eef52e17b9e8de20c42d22810db14308383a445f3c9","last_reissued_at":"2026-05-17T23:56:44.968222Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:56:44.968222Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.04118","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:56:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GkQrVX6FbeL+Z01wH/+WvqwJr719+rCxreoWMe3eqeIjTZp19BSPUGnNMopJXMJSyH3gP7DDfrFvZljgo/tCAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T19:50:06.714860Z"},"content_sha256":"07ba7db3b394583b17b34075912d38daf36164790808550fc09b50d7c57cedfa","schema_version":"1.0","event_id":"sha256:07ba7db3b394583b17b34075912d38daf36164790808550fc09b50d7c57cedfa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:YTTW5E5T5X6RI3YVT3XVFYL3T2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Discovery of {\\delta} Scuti Pulsations in the Young Hybrid Debris Disk Star HD 156623","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Blaine B. D. Lomberg, Eric E. Mamajek, Geert Jan J. Talens, John I. Bailey III, Konstanze Zwintz, Matthew A. Kenworthy, Michael J. Ireland, Olivier Burggraaff, Patrick Dorval, Remko Stuik, Rudi B. Kuhn, Samuel N. Mellon, Steven M. Crawford, Trevor J. David","submitted_at":"2018-11-09T19:50:39Z","abstract_excerpt":"The bRing robotic observatory network was built to search for circumplanetary material within the transiting Hill sphere of the exoplanet $\\beta$ Pic b across its bright host star $\\beta$ Pic. During the bRing survey of $\\beta$ Pic, it simultaneously monitored the brightnesses of thousands of bright stars in the southern sky ($V$ $\\simeq$ 4-8, $\\delta$ $\\lesssim$ -30$^{\\circ}$). In this work, we announce the discovery of $\\delta$ Scuti pulsations in the A-type star HD 156623 using bRing data. HD 156623 is notable as it is a well-studied young star with a dusty and gas-rich debris disk, previou"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.04118","kind":"arxiv","version":3},"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":"2026-05-17T23:56:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UEjxImHak+rVUSNR96VSH09zMaNv2TDi0ttVPlmui02UvgJIpSw/2wV83luAWbiXVgUk6zo52BTB2m1vsqYvDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T19:50:06.715208Z"},"content_sha256":"ee63027abee905a8c724a0f83c8dc748ec5a8b73db7e7f509b2fcce457842218","schema_version":"1.0","event_id":"sha256:ee63027abee905a8c724a0f83c8dc748ec5a8b73db7e7f509b2fcce457842218"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YTTW5E5T5X6RI3YVT3XVFYL3T2/bundle.json","state_url":"https://pith.science/pith/YTTW5E5T5X6RI3YVT3XVFYL3T2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YTTW5E5T5X6RI3YVT3XVFYL3T2/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":"2026-06-02T19:50:06Z","links":{"resolver":"https://pith.science/pith/YTTW5E5T5X6RI3YVT3XVFYL3T2","bundle":"https://pith.science/pith/YTTW5E5T5X6RI3YVT3XVFYL3T2/bundle.json","state":"https://pith.science/pith/YTTW5E5T5X6RI3YVT3XVFYL3T2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YTTW5E5T5X6RI3YVT3XVFYL3T2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:YTTW5E5T5X6RI3YVT3XVFYL3T2","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":"305897384df41e5e830bb174a239df8d93fe09c1a710bd85560ebad9c490c266","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-11-09T19:50:39Z","title_canon_sha256":"d4353a8fc98025657b79e9a1aa3c082a46926bbd017cf50173767f846e534f28"},"schema_version":"1.0","source":{"id":"1811.04118","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.04118","created_at":"2026-05-17T23:56:44Z"},{"alias_kind":"arxiv_version","alias_value":"1811.04118v3","created_at":"2026-05-17T23:56:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.04118","created_at":"2026-05-17T23:56:44Z"},{"alias_kind":"pith_short_12","alias_value":"YTTW5E5T5X6R","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"YTTW5E5T5X6RI3YV","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"YTTW5E5T","created_at":"2026-05-18T12:33:04Z"}],"graph_snapshots":[{"event_id":"sha256:ee63027abee905a8c724a0f83c8dc748ec5a8b73db7e7f509b2fcce457842218","target":"graph","created_at":"2026-05-17T23:56:44Z","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":"The bRing robotic observatory network was built to search for circumplanetary material within the transiting Hill sphere of the exoplanet $\\beta$ Pic b across its bright host star $\\beta$ Pic. During the bRing survey of $\\beta$ Pic, it simultaneously monitored the brightnesses of thousands of bright stars in the southern sky ($V$ $\\simeq$ 4-8, $\\delta$ $\\lesssim$ -30$^{\\circ}$). In this work, we announce the discovery of $\\delta$ Scuti pulsations in the A-type star HD 156623 using bRing data. HD 156623 is notable as it is a well-studied young star with a dusty and gas-rich debris disk, previou","authors_text":"Blaine B. D. Lomberg, Eric E. Mamajek, Geert Jan J. Talens, John I. Bailey III, Konstanze Zwintz, Matthew A. Kenworthy, Michael J. Ireland, Olivier Burggraaff, Patrick Dorval, Remko Stuik, Rudi B. Kuhn, Samuel N. Mellon, Steven M. Crawford, Trevor J. David","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-11-09T19:50:39Z","title":"Discovery of {\\delta} Scuti Pulsations in the Young Hybrid Debris Disk Star HD 156623"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.04118","kind":"arxiv","version":3},"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":"sha256:07ba7db3b394583b17b34075912d38daf36164790808550fc09b50d7c57cedfa","target":"record","created_at":"2026-05-17T23:56:44Z","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":"305897384df41e5e830bb174a239df8d93fe09c1a710bd85560ebad9c490c266","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-11-09T19:50:39Z","title_canon_sha256":"d4353a8fc98025657b79e9a1aa3c082a46926bbd017cf50173767f846e534f28"},"schema_version":"1.0","source":{"id":"1811.04118","kind":"arxiv","version":3}},"canonical_sha256":"c4e76e93b3edfd146f159eef52e17b9e8de20c42d22810db14308383a445f3c9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c4e76e93b3edfd146f159eef52e17b9e8de20c42d22810db14308383a445f3c9","first_computed_at":"2026-05-17T23:56:44.968222Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:56:44.968222Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Q+1Jc5lJ0PL1HAwHIw+0TD1AyiVcK+z4Op3Yf2Xiav89JpOlVzmljn969oa8L3TNMqOaCZeIcGagxChvmu4CAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:56:44.968619Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.04118","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:07ba7db3b394583b17b34075912d38daf36164790808550fc09b50d7c57cedfa","sha256:ee63027abee905a8c724a0f83c8dc748ec5a8b73db7e7f509b2fcce457842218"],"state_sha256":"c1346d62a2a2613d6f686836beb4d9d2482d1f5688e3e8eb9fbd0724d9df8dce"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6L2FFLf47MWJb0z/zzTOKUoeMcT+9mg2agfbHvNaRqm7N0h0CFYQSkmXZJCymR7WENS3wMQ3cl1nSnUg/Zk+AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T19:50:06.717161Z","bundle_sha256":"f78b1962db1c32b8d9b6f751e00ea0a5ede0cb56054cfa17ed5566162cbcedf4"}}