{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:VCJV2HE3KKNE4XAN2QRTT2PK6U","short_pith_number":"pith:VCJV2HE3","canonical_record":{"source":{"id":"2308.01234","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-08-02T15:42:02Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"94f1cb4b5a7645be9f177cf2edb958fd950ee5fb0fc526e7efbd8c79ad503e8e","abstract_canon_sha256":"b37ed1baf1caeb0ac5fd7b69463a3b47a3b149a27a876105a7fe663dea10e8e0"},"schema_version":"1.0"},"canonical_sha256":"a8935d1c9b529a4e5c0dd42339e9eaf506af281f1e725aac06a98b0bf6db7c34","source":{"kind":"arxiv","id":"2308.01234","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2308.01234","created_at":"2026-07-05T07:56:50Z"},{"alias_kind":"arxiv_version","alias_value":"2308.01234v2","created_at":"2026-07-05T07:56:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.01234","created_at":"2026-07-05T07:56:50Z"},{"alias_kind":"pith_short_12","alias_value":"VCJV2HE3KKNE","created_at":"2026-07-05T07:56:50Z"},{"alias_kind":"pith_short_16","alias_value":"VCJV2HE3KKNE4XAN","created_at":"2026-07-05T07:56:50Z"},{"alias_kind":"pith_short_8","alias_value":"VCJV2HE3","created_at":"2026-07-05T07:56:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:VCJV2HE3KKNE4XAN2QRTT2PK6U","target":"record","payload":{"canonical_record":{"source":{"id":"2308.01234","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-08-02T15:42:02Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"94f1cb4b5a7645be9f177cf2edb958fd950ee5fb0fc526e7efbd8c79ad503e8e","abstract_canon_sha256":"b37ed1baf1caeb0ac5fd7b69463a3b47a3b149a27a876105a7fe663dea10e8e0"},"schema_version":"1.0"},"canonical_sha256":"a8935d1c9b529a4e5c0dd42339e9eaf506af281f1e725aac06a98b0bf6db7c34","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:56:50.941725Z","signature_b64":"KBJHaupwWueE/r/k+6GHzrzSnJIiDNqt26NDYsFzc8xeM7JSy5h/B0w8iFyWEHZU0VUlZ5fzz4v1uAjy3ufbBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a8935d1c9b529a4e5c0dd42339e9eaf506af281f1e725aac06a98b0bf6db7c34","last_reissued_at":"2026-07-05T07:56:50.941230Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:56:50.941230Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2308.01234","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":"2026-07-05T07:56:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rA+Dn/wEWxIvTE8jbHTiz1yMt2Hn5b82S064e0+a6p/KUlhyOp0OlfppUZ+SB/TfiswVwr8YBa4wDLpMZB1jAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T01:57:27.542974Z"},"content_sha256":"dac4f956fc6deea0874e34fadc44803ee9ebd74e23bb0f16992b1c504826d036","schema_version":"1.0","event_id":"sha256:dac4f956fc6deea0874e34fadc44803ee9ebd74e23bb0f16992b1c504826d036"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:VCJV2HE3KKNE4XAN2QRTT2PK6U","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Eccentric Gas Disk Orbiting the White Dwarf SDSS J1228+1040","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Olcay Ates Goksu, Taylor Kutra, Yanqin Wu (Toronto)","submitted_at":"2023-08-02T15:42:02Z","abstract_excerpt":"Metal pollution onto white dwarfs is a wide-spread phenomenon that remains puzzling. Some of these white dwarfs also harbour gaseous debris disks. Emission lines from these disks open a unique window to the physical properties of the polluting material, lending insights to their origin. We model the emission line kinematics for the gas disk around SDSS J1228+1040, a system that has been monitored for over two decades. We show that the disk mass is strongly peaked at 1 solar radius (modulo the unknown inclination), and the disk eccentricity decreases from a value of 0.44 at the inner edge, to n"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.01234","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/2308.01234/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":"2026-07-05T07:56:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9HM1d7tNi0m+qFaHn1WG9aaHO2PK5BPHw+J74pWzGNOIfuPf0KMCKwj+CCSt2rlOEAZiClbLpYzp/q9eq8xbAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T01:57:27.543459Z"},"content_sha256":"180725982bd1c94d84e1996fcba0648ffd738b6db52bbe6762198e9c4c2e48c7","schema_version":"1.0","event_id":"sha256:180725982bd1c94d84e1996fcba0648ffd738b6db52bbe6762198e9c4c2e48c7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VCJV2HE3KKNE4XAN2QRTT2PK6U/bundle.json","state_url":"https://pith.science/pith/VCJV2HE3KKNE4XAN2QRTT2PK6U/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VCJV2HE3KKNE4XAN2QRTT2PK6U/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":"2026-08-04T01:57:27Z","links":{"resolver":"https://pith.science/pith/VCJV2HE3KKNE4XAN2QRTT2PK6U","bundle":"https://pith.science/pith/VCJV2HE3KKNE4XAN2QRTT2PK6U/bundle.json","state":"https://pith.science/pith/VCJV2HE3KKNE4XAN2QRTT2PK6U/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VCJV2HE3KKNE4XAN2QRTT2PK6U/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:VCJV2HE3KKNE4XAN2QRTT2PK6U","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":"b37ed1baf1caeb0ac5fd7b69463a3b47a3b149a27a876105a7fe663dea10e8e0","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-08-02T15:42:02Z","title_canon_sha256":"94f1cb4b5a7645be9f177cf2edb958fd950ee5fb0fc526e7efbd8c79ad503e8e"},"schema_version":"1.0","source":{"id":"2308.01234","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2308.01234","created_at":"2026-07-05T07:56:50Z"},{"alias_kind":"arxiv_version","alias_value":"2308.01234v2","created_at":"2026-07-05T07:56:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.01234","created_at":"2026-07-05T07:56:50Z"},{"alias_kind":"pith_short_12","alias_value":"VCJV2HE3KKNE","created_at":"2026-07-05T07:56:50Z"},{"alias_kind":"pith_short_16","alias_value":"VCJV2HE3KKNE4XAN","created_at":"2026-07-05T07:56:50Z"},{"alias_kind":"pith_short_8","alias_value":"VCJV2HE3","created_at":"2026-07-05T07:56:50Z"}],"graph_snapshots":[{"event_id":"sha256:180725982bd1c94d84e1996fcba0648ffd738b6db52bbe6762198e9c4c2e48c7","target":"graph","created_at":"2026-07-05T07:56:50Z","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/2308.01234/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Metal pollution onto white dwarfs is a wide-spread phenomenon that remains puzzling. Some of these white dwarfs also harbour gaseous debris disks. Emission lines from these disks open a unique window to the physical properties of the polluting material, lending insights to their origin. We model the emission line kinematics for the gas disk around SDSS J1228+1040, a system that has been monitored for over two decades. We show that the disk mass is strongly peaked at 1 solar radius (modulo the unknown inclination), and the disk eccentricity decreases from a value of 0.44 at the inner edge, to n","authors_text":"Olcay Ates Goksu, Taylor Kutra, Yanqin Wu (Toronto)","cross_cats":["astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-08-02T15:42:02Z","title":"Eccentric Gas Disk Orbiting the White Dwarf SDSS J1228+1040"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.01234","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:dac4f956fc6deea0874e34fadc44803ee9ebd74e23bb0f16992b1c504826d036","target":"record","created_at":"2026-07-05T07:56:50Z","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":"b37ed1baf1caeb0ac5fd7b69463a3b47a3b149a27a876105a7fe663dea10e8e0","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-08-02T15:42:02Z","title_canon_sha256":"94f1cb4b5a7645be9f177cf2edb958fd950ee5fb0fc526e7efbd8c79ad503e8e"},"schema_version":"1.0","source":{"id":"2308.01234","kind":"arxiv","version":2}},"canonical_sha256":"a8935d1c9b529a4e5c0dd42339e9eaf506af281f1e725aac06a98b0bf6db7c34","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a8935d1c9b529a4e5c0dd42339e9eaf506af281f1e725aac06a98b0bf6db7c34","first_computed_at":"2026-07-05T07:56:50.941230Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:56:50.941230Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KBJHaupwWueE/r/k+6GHzrzSnJIiDNqt26NDYsFzc8xeM7JSy5h/B0w8iFyWEHZU0VUlZ5fzz4v1uAjy3ufbBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T07:56:50.941725Z","signed_message":"canonical_sha256_bytes"},"source_id":"2308.01234","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dac4f956fc6deea0874e34fadc44803ee9ebd74e23bb0f16992b1c504826d036","sha256:180725982bd1c94d84e1996fcba0648ffd738b6db52bbe6762198e9c4c2e48c7"],"state_sha256":"4fd31da364342ae1fe43c9bac9b0d68e885edd74fd55b3f68240ba56fc3a9de1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tVRA57nGzPH2huzZm0CmMi8OCblzFBMwmXSNK+YBqCISrJ7qpIHfNSWyU/U+iKB6ablbtEmMrXM4XEVjUcy+Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T01:57:27.547116Z","bundle_sha256":"d415fd0ac11cd7ee0f048296bb1b49853dd4ecf9c772db4ae815411f14759c16"}}