{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:7HPD7R2V5QDBIHXINPX4RAX4ZT","short_pith_number":"pith:7HPD7R2V","canonical_record":{"source":{"id":"2010.10534","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-10-20T18:00:02Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"830efa05150e919a98ddda468c1306139f1db8def207a138b7cf9c8193275300","abstract_canon_sha256":"e9184452aa7034b22b6df40048bd95897e5fb3620282067c994aa2dc57890135"},"schema_version":"1.0"},"canonical_sha256":"f9de3fc755ec06141ee86befc882fcccf24826590eccd03a60575e3e4a5063ab","source":{"kind":"arxiv","id":"2010.10534","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.10534","created_at":"2026-07-05T03:34:20Z"},{"alias_kind":"arxiv_version","alias_value":"2010.10534v2","created_at":"2026-07-05T03:34:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.10534","created_at":"2026-07-05T03:34:20Z"},{"alias_kind":"pith_short_12","alias_value":"7HPD7R2V5QDB","created_at":"2026-07-05T03:34:20Z"},{"alias_kind":"pith_short_16","alias_value":"7HPD7R2V5QDBIHXI","created_at":"2026-07-05T03:34:20Z"},{"alias_kind":"pith_short_8","alias_value":"7HPD7R2V","created_at":"2026-07-05T03:34:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:7HPD7R2V5QDBIHXINPX4RAX4ZT","target":"record","payload":{"canonical_record":{"source":{"id":"2010.10534","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-10-20T18:00:02Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"830efa05150e919a98ddda468c1306139f1db8def207a138b7cf9c8193275300","abstract_canon_sha256":"e9184452aa7034b22b6df40048bd95897e5fb3620282067c994aa2dc57890135"},"schema_version":"1.0"},"canonical_sha256":"f9de3fc755ec06141ee86befc882fcccf24826590eccd03a60575e3e4a5063ab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:34:20.433857Z","signature_b64":"h2AiJnQVfj6y2M6gslt8cH9mNL0GxsII+/zqi6yGCCGcCDbLUUYzM/E1GsxjxPmTSqar2QPDeldR2wy7YTT+Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f9de3fc755ec06141ee86befc882fcccf24826590eccd03a60575e3e4a5063ab","last_reissued_at":"2026-07-05T03:34:20.433375Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:34:20.433375Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2010.10534","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":"2026-07-05T03:34:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UdH/MkX4NbOORlnwK1BTToC81PEYs9U85BhFq/TbzMcMrzmBb6D/bDZmv2zASnXWqZZemnk3sRbYmlDHQeaXDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T13:31:55.188239Z"},"content_sha256":"01e81e9934d3fa5f70b92684c6c8fbc2e7e7d8e0c3d4ca9e1836243e2b04bf04","schema_version":"1.0","event_id":"sha256:01e81e9934d3fa5f70b92684c6c8fbc2e7e7d8e0c3d4ca9e1836243e2b04bf04"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:7HPD7R2V5QDBIHXINPX4RAX4ZT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Giant Planets, Tiny Stars: Producing Short-Period Planets around White Dwarfs with the Eccentric Kozai-Lidov Mechanism","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Alexander P. Stephan, B. Scott Gaudi, Smadar Naoz","submitted_at":"2020-10-20T18:00:02Z","abstract_excerpt":"The recent discoveries of WD J091405.30+191412.25 (WD J0914 hereafter), a white dwarf likely accreting material from an ice giant planet, and WD 1856+534 b (WD 1856 b hereafter), a Jupiter-sized planet transiting a white dwarf, are the first direct evidence of giant planets orbiting white dwarfs. However, for both systems the observations indicate that the planets' current orbital distances would have put them inside the stellar envelope during the red giant phase, implying that the planets must have migrated to their current orbits after their host stars became white dwarfs. Furthermore, WD J"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.10534","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2010.10534/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":"2026-07-05T03:34:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ysu4yPVfVR4NFpc2+VUBKMP0l0e+bfVcTy45jzqhQnV1Z5BXDLcAQrsWBiRCvl87EAevI0ciH+/1uQLEdxshAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T13:31:55.189103Z"},"content_sha256":"4d7599f4cf97c2904b30fb3a306e705542ccd34901b2983c111c648f4caff427","schema_version":"1.0","event_id":"sha256:4d7599f4cf97c2904b30fb3a306e705542ccd34901b2983c111c648f4caff427"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7HPD7R2V5QDBIHXINPX4RAX4ZT/bundle.json","state_url":"https://pith.science/pith/7HPD7R2V5QDBIHXINPX4RAX4ZT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7HPD7R2V5QDBIHXINPX4RAX4ZT/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":"2026-08-06T13:31:55Z","links":{"resolver":"https://pith.science/pith/7HPD7R2V5QDBIHXINPX4RAX4ZT","bundle":"https://pith.science/pith/7HPD7R2V5QDBIHXINPX4RAX4ZT/bundle.json","state":"https://pith.science/pith/7HPD7R2V5QDBIHXINPX4RAX4ZT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7HPD7R2V5QDBIHXINPX4RAX4ZT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:7HPD7R2V5QDBIHXINPX4RAX4ZT","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":"e9184452aa7034b22b6df40048bd95897e5fb3620282067c994aa2dc57890135","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-10-20T18:00:02Z","title_canon_sha256":"830efa05150e919a98ddda468c1306139f1db8def207a138b7cf9c8193275300"},"schema_version":"1.0","source":{"id":"2010.10534","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.10534","created_at":"2026-07-05T03:34:20Z"},{"alias_kind":"arxiv_version","alias_value":"2010.10534v2","created_at":"2026-07-05T03:34:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.10534","created_at":"2026-07-05T03:34:20Z"},{"alias_kind":"pith_short_12","alias_value":"7HPD7R2V5QDB","created_at":"2026-07-05T03:34:20Z"},{"alias_kind":"pith_short_16","alias_value":"7HPD7R2V5QDBIHXI","created_at":"2026-07-05T03:34:20Z"},{"alias_kind":"pith_short_8","alias_value":"7HPD7R2V","created_at":"2026-07-05T03:34:20Z"}],"graph_snapshots":[{"event_id":"sha256:4d7599f4cf97c2904b30fb3a306e705542ccd34901b2983c111c648f4caff427","target":"graph","created_at":"2026-07-05T03:34:20Z","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/2010.10534/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The recent discoveries of WD J091405.30+191412.25 (WD J0914 hereafter), a white dwarf likely accreting material from an ice giant planet, and WD 1856+534 b (WD 1856 b hereafter), a Jupiter-sized planet transiting a white dwarf, are the first direct evidence of giant planets orbiting white dwarfs. However, for both systems the observations indicate that the planets' current orbital distances would have put them inside the stellar envelope during the red giant phase, implying that the planets must have migrated to their current orbits after their host stars became white dwarfs. Furthermore, WD J","authors_text":"Alexander P. Stephan, B. Scott Gaudi, Smadar Naoz","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-10-20T18:00:02Z","title":"Giant Planets, Tiny Stars: Producing Short-Period Planets around White Dwarfs with the Eccentric Kozai-Lidov Mechanism"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.10534","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":"sha256:01e81e9934d3fa5f70b92684c6c8fbc2e7e7d8e0c3d4ca9e1836243e2b04bf04","target":"record","created_at":"2026-07-05T03:34:20Z","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":"e9184452aa7034b22b6df40048bd95897e5fb3620282067c994aa2dc57890135","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-10-20T18:00:02Z","title_canon_sha256":"830efa05150e919a98ddda468c1306139f1db8def207a138b7cf9c8193275300"},"schema_version":"1.0","source":{"id":"2010.10534","kind":"arxiv","version":2}},"canonical_sha256":"f9de3fc755ec06141ee86befc882fcccf24826590eccd03a60575e3e4a5063ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f9de3fc755ec06141ee86befc882fcccf24826590eccd03a60575e3e4a5063ab","first_computed_at":"2026-07-05T03:34:20.433375Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:34:20.433375Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"h2AiJnQVfj6y2M6gslt8cH9mNL0GxsII+/zqi6yGCCGcCDbLUUYzM/E1GsxjxPmTSqar2QPDeldR2wy7YTT+Dg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:34:20.433857Z","signed_message":"canonical_sha256_bytes"},"source_id":"2010.10534","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:01e81e9934d3fa5f70b92684c6c8fbc2e7e7d8e0c3d4ca9e1836243e2b04bf04","sha256:4d7599f4cf97c2904b30fb3a306e705542ccd34901b2983c111c648f4caff427"],"state_sha256":"14c9c0c8f470d021ae03339aaad085ec621861e35d5a6b6fc9b3c0e95a3812d4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/zsy5ciOoLsssgvssA0nRizFY3oDrKvlBMJxYN4PgXc3mnMIfEZj2L0rm+tTX/dcrfD3CZTY9hhorODMvebQBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T13:31:56.013174Z","bundle_sha256":"0c9c90b7714bebcdc0351e99264a7655f4383f8736cf6eb0a080b75ca6a9886e"}}