{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:SVRY7JSWCJDCWIKTHKUE466Y5Y","short_pith_number":"pith:SVRY7JSW","canonical_record":{"source":{"id":"2406.18646","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-06-26T18:00:01Z","cross_cats_sorted":["astro-ph.EP","astro-ph.IM"],"title_canon_sha256":"3eb18fdc7906f44f6654af86318a443c288ac4079feed286669171308e2f23f2","abstract_canon_sha256":"ddcf41f991f956ce3df5071b91c8576e364d2a29898cab43c3356dd20fa1ec00"},"schema_version":"1.0"},"canonical_sha256":"95638fa65612462b21533aa84e7bd8ee18a4c6c8a0372161eb836eee86a47567","source":{"kind":"arxiv","id":"2406.18646","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.18646","created_at":"2026-07-05T08:37:24Z"},{"alias_kind":"arxiv_version","alias_value":"2406.18646v1","created_at":"2026-07-05T08:37:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.18646","created_at":"2026-07-05T08:37:24Z"},{"alias_kind":"pith_short_12","alias_value":"SVRY7JSWCJDC","created_at":"2026-07-05T08:37:24Z"},{"alias_kind":"pith_short_16","alias_value":"SVRY7JSWCJDCWIKT","created_at":"2026-07-05T08:37:24Z"},{"alias_kind":"pith_short_8","alias_value":"SVRY7JSW","created_at":"2026-07-05T08:37:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:SVRY7JSWCJDCWIKTHKUE466Y5Y","target":"record","payload":{"canonical_record":{"source":{"id":"2406.18646","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-06-26T18:00:01Z","cross_cats_sorted":["astro-ph.EP","astro-ph.IM"],"title_canon_sha256":"3eb18fdc7906f44f6654af86318a443c288ac4079feed286669171308e2f23f2","abstract_canon_sha256":"ddcf41f991f956ce3df5071b91c8576e364d2a29898cab43c3356dd20fa1ec00"},"schema_version":"1.0"},"canonical_sha256":"95638fa65612462b21533aa84e7bd8ee18a4c6c8a0372161eb836eee86a47567","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:37:24.026682Z","signature_b64":"HQw9Wm65wSbc3GEZbMoZHg1MD1Qz6fq5DXlMbx26rz21wxdHQS/vo8r6fbxo7N1MSP4psKvJvHcYS1BzuMXDAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"95638fa65612462b21533aa84e7bd8ee18a4c6c8a0372161eb836eee86a47567","last_reissued_at":"2026-07-05T08:37:24.026205Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:37:24.026205Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2406.18646","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":"2026-07-05T08:37:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+U+eBfia11VGUkMMbzxHsECd/qgVPv2BisRBSseurUBf134zVEu9VsBEYs8q3wM1WIlOhtjsEzdNcQb3ywQQDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T23:29:57.242863Z"},"content_sha256":"19570fe75f1c70b3649f3196bce58c91293081f981eb3e48e55b42842061502a","schema_version":"1.0","event_id":"sha256:19570fe75f1c70b3649f3196bce58c91293081f981eb3e48e55b42842061502a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:SVRY7JSWCJDCWIKTHKUE466Y5Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Using 3.4-$\\mu$m Variability towards White Dwarfs as a Signpost of Remnant Planetary Systems","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.EP","astro-ph.IM"],"primary_cat":"astro-ph.SR","authors_text":"B. C. Kaiser, Brison B. Ewing, J. J. Hermes, Joseph A. Guidry, Kishalay De, Lou Baya Ould Rouis","submitted_at":"2024-06-26T18:00:01Z","abstract_excerpt":"Roughly 2% of white dwarfs harbor planetary debris disks detectable via infrared excesses, but only a few percent of these disks show a gaseous component, distinguished by their double-peaked emission at the near-infrared calcium triplet. Previous studies found most debris disks around white dwarfs are variable at 3.4 and 4.5 $\\mu$m, but they analyzed only a few of the now 21 published disks showing calcium emission. To test if most published calcium emission disks exhibit large-amplitude stochastic variability in the near-infrared, we use light curves generated from the unWISE images at 3.4 $"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.18646","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/2406.18646/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":"2026-07-05T08:37:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0HVSq8/cuK/zwtDR+rZwxkb3eXrv34XAYl4HNqgZwHw3oZj39SiovP43GVgUSvcJrS65xc+gTbeQFxgbp+AlDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T23:29:57.243391Z"},"content_sha256":"0c3cb79b3d74d607d816dbb8010074d4bfeb50e0eb5822ea11fd5359a8facd8b","schema_version":"1.0","event_id":"sha256:0c3cb79b3d74d607d816dbb8010074d4bfeb50e0eb5822ea11fd5359a8facd8b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SVRY7JSWCJDCWIKTHKUE466Y5Y/bundle.json","state_url":"https://pith.science/pith/SVRY7JSWCJDCWIKTHKUE466Y5Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SVRY7JSWCJDCWIKTHKUE466Y5Y/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":"2026-08-02T23:29:57Z","links":{"resolver":"https://pith.science/pith/SVRY7JSWCJDCWIKTHKUE466Y5Y","bundle":"https://pith.science/pith/SVRY7JSWCJDCWIKTHKUE466Y5Y/bundle.json","state":"https://pith.science/pith/SVRY7JSWCJDCWIKTHKUE466Y5Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SVRY7JSWCJDCWIKTHKUE466Y5Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:SVRY7JSWCJDCWIKTHKUE466Y5Y","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":"ddcf41f991f956ce3df5071b91c8576e364d2a29898cab43c3356dd20fa1ec00","cross_cats_sorted":["astro-ph.EP","astro-ph.IM"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-06-26T18:00:01Z","title_canon_sha256":"3eb18fdc7906f44f6654af86318a443c288ac4079feed286669171308e2f23f2"},"schema_version":"1.0","source":{"id":"2406.18646","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.18646","created_at":"2026-07-05T08:37:24Z"},{"alias_kind":"arxiv_version","alias_value":"2406.18646v1","created_at":"2026-07-05T08:37:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.18646","created_at":"2026-07-05T08:37:24Z"},{"alias_kind":"pith_short_12","alias_value":"SVRY7JSWCJDC","created_at":"2026-07-05T08:37:24Z"},{"alias_kind":"pith_short_16","alias_value":"SVRY7JSWCJDCWIKT","created_at":"2026-07-05T08:37:24Z"},{"alias_kind":"pith_short_8","alias_value":"SVRY7JSW","created_at":"2026-07-05T08:37:24Z"}],"graph_snapshots":[{"event_id":"sha256:0c3cb79b3d74d607d816dbb8010074d4bfeb50e0eb5822ea11fd5359a8facd8b","target":"graph","created_at":"2026-07-05T08:37:24Z","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/2406.18646/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Roughly 2% of white dwarfs harbor planetary debris disks detectable via infrared excesses, but only a few percent of these disks show a gaseous component, distinguished by their double-peaked emission at the near-infrared calcium triplet. Previous studies found most debris disks around white dwarfs are variable at 3.4 and 4.5 $\\mu$m, but they analyzed only a few of the now 21 published disks showing calcium emission. To test if most published calcium emission disks exhibit large-amplitude stochastic variability in the near-infrared, we use light curves generated from the unWISE images at 3.4 $","authors_text":"B. C. Kaiser, Brison B. Ewing, J. J. Hermes, Joseph A. Guidry, Kishalay De, Lou Baya Ould Rouis","cross_cats":["astro-ph.EP","astro-ph.IM"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-06-26T18:00:01Z","title":"Using 3.4-$\\mu$m Variability towards White Dwarfs as a Signpost of Remnant Planetary Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.18646","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":"sha256:19570fe75f1c70b3649f3196bce58c91293081f981eb3e48e55b42842061502a","target":"record","created_at":"2026-07-05T08:37:24Z","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":"ddcf41f991f956ce3df5071b91c8576e364d2a29898cab43c3356dd20fa1ec00","cross_cats_sorted":["astro-ph.EP","astro-ph.IM"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-06-26T18:00:01Z","title_canon_sha256":"3eb18fdc7906f44f6654af86318a443c288ac4079feed286669171308e2f23f2"},"schema_version":"1.0","source":{"id":"2406.18646","kind":"arxiv","version":1}},"canonical_sha256":"95638fa65612462b21533aa84e7bd8ee18a4c6c8a0372161eb836eee86a47567","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"95638fa65612462b21533aa84e7bd8ee18a4c6c8a0372161eb836eee86a47567","first_computed_at":"2026-07-05T08:37:24.026205Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:37:24.026205Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HQw9Wm65wSbc3GEZbMoZHg1MD1Qz6fq5DXlMbx26rz21wxdHQS/vo8r6fbxo7N1MSP4psKvJvHcYS1BzuMXDAA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:37:24.026682Z","signed_message":"canonical_sha256_bytes"},"source_id":"2406.18646","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:19570fe75f1c70b3649f3196bce58c91293081f981eb3e48e55b42842061502a","sha256:0c3cb79b3d74d607d816dbb8010074d4bfeb50e0eb5822ea11fd5359a8facd8b"],"state_sha256":"09134027879d73ed44a0f01a34ab48611300c2d745a5304839173bcd35957f0a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UaXsPM3tZAKQyri1K1XokH8igH43oDClXQYTyig7xI4U1W/bDZh/8GUd19uR7xpXHZ3vBElTodXV6CeNFrbmDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-02T23:29:57.247502Z","bundle_sha256":"ee4f05c508ddec30d7c1155b773e2a4e735c00a35060f6f678bdb99b6269a3f4"}}