{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:P3DTFBGERTP3XP3HDVCEGQXO73","short_pith_number":"pith:P3DTFBGE","canonical_record":{"source":{"id":"1708.05391","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-08-17T18:00:06Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"127e76a50bbe1e3fa446f5c8e2d570c8d025b3dc334df1214ad4c937aadec8ff","abstract_canon_sha256":"4ac6529c8e6fa809cc086ce90961617f47447d11a71c4dc1a5d81b76e14f5b41"},"schema_version":"1.0"},"canonical_sha256":"7ec73284c48cdfbbbf671d444342eefee7b59da7d707a442bee4b95bc48c276e","source":{"kind":"arxiv","id":"1708.05391","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.05391","created_at":"2026-05-18T00:29:29Z"},{"alias_kind":"arxiv_version","alias_value":"1708.05391v1","created_at":"2026-05-18T00:29:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.05391","created_at":"2026-05-18T00:29:29Z"},{"alias_kind":"pith_short_12","alias_value":"P3DTFBGERTP3","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_16","alias_value":"P3DTFBGERTP3XP3H","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_8","alias_value":"P3DTFBGE","created_at":"2026-05-18T12:31:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:P3DTFBGERTP3XP3HDVCEGQXO73","target":"record","payload":{"canonical_record":{"source":{"id":"1708.05391","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-08-17T18:00:06Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"127e76a50bbe1e3fa446f5c8e2d570c8d025b3dc334df1214ad4c937aadec8ff","abstract_canon_sha256":"4ac6529c8e6fa809cc086ce90961617f47447d11a71c4dc1a5d81b76e14f5b41"},"schema_version":"1.0"},"canonical_sha256":"7ec73284c48cdfbbbf671d444342eefee7b59da7d707a442bee4b95bc48c276e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:29:29.219526Z","signature_b64":"V2Lp+fBwNbC7sHsDZr54Z/CZuZrgFrmt298M+bm8diOUU0Smp76WvNP6rTwdi9IOteWVRmo78kzHcU7I92Z8Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7ec73284c48cdfbbbf671d444342eefee7b59da7d707a442bee4b95bc48c276e","last_reissued_at":"2026-05-18T00:29:29.218957Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:29:29.218957Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.05391","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":"2026-05-18T00:29:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mtIwD6kqZ9WQLh4Qfd/++5MxPpVvwoqPtf49j2x4B9rovYWBCBqhUOhcmlNST3ECpEBo4mkdy1PqWqKfOizdDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T06:54:44.214429Z"},"content_sha256":"37e9f64cc621f4df68d9ec159381bf8935ca4b9a4c2f23ecdffd798b11f203ea","schema_version":"1.0","event_id":"sha256:37e9f64cc621f4df68d9ec159381bf8935ca4b9a4c2f23ecdffd798b11f203ea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:P3DTFBGERTP3XP3HDVCEGQXO73","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The critical binary star separation for a planetary system origin of white dwarf pollution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Alberto Rebassa-Mansergas, Dimitri Veras, Siyi Xu","submitted_at":"2017-08-17T18:00:06Z","abstract_excerpt":"The atmospheres of between one quarter and one half of observed single white dwarfs in the Milky Way contain heavy element pollution from planetary debris. The pollution observed in white dwarfs in binary star systems is, however, less clear, because companion star winds can generate a stream of matter which is accreted by the white dwarf. Here we (i) discuss the necessity or lack thereof of a major planet in order to pollute a white dwarf with orbiting minor planets in both single and binary systems, and (ii) determine the critical binary separation beyond which the accretion source is from a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.05391","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":""},"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":"2026-05-18T00:29:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+Yrr1k9bKiA0pYAufWH51jW21p5GeTMWZ4C5NPg9eCEgvbn+uF3d/s2BAsQMSquu1OztNhycqIwZVn2dCBWODA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T06:54:44.214786Z"},"content_sha256":"357d83133eb9a1eaad54f3b332804d416f07bae4583d04539586d2725e04ddfc","schema_version":"1.0","event_id":"sha256:357d83133eb9a1eaad54f3b332804d416f07bae4583d04539586d2725e04ddfc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P3DTFBGERTP3XP3HDVCEGQXO73/bundle.json","state_url":"https://pith.science/pith/P3DTFBGERTP3XP3HDVCEGQXO73/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P3DTFBGERTP3XP3HDVCEGQXO73/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":"2026-06-07T06:54:44Z","links":{"resolver":"https://pith.science/pith/P3DTFBGERTP3XP3HDVCEGQXO73","bundle":"https://pith.science/pith/P3DTFBGERTP3XP3HDVCEGQXO73/bundle.json","state":"https://pith.science/pith/P3DTFBGERTP3XP3HDVCEGQXO73/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P3DTFBGERTP3XP3HDVCEGQXO73/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:P3DTFBGERTP3XP3HDVCEGQXO73","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":"4ac6529c8e6fa809cc086ce90961617f47447d11a71c4dc1a5d81b76e14f5b41","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-08-17T18:00:06Z","title_canon_sha256":"127e76a50bbe1e3fa446f5c8e2d570c8d025b3dc334df1214ad4c937aadec8ff"},"schema_version":"1.0","source":{"id":"1708.05391","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.05391","created_at":"2026-05-18T00:29:29Z"},{"alias_kind":"arxiv_version","alias_value":"1708.05391v1","created_at":"2026-05-18T00:29:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.05391","created_at":"2026-05-18T00:29:29Z"},{"alias_kind":"pith_short_12","alias_value":"P3DTFBGERTP3","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_16","alias_value":"P3DTFBGERTP3XP3H","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_8","alias_value":"P3DTFBGE","created_at":"2026-05-18T12:31:37Z"}],"graph_snapshots":[{"event_id":"sha256:357d83133eb9a1eaad54f3b332804d416f07bae4583d04539586d2725e04ddfc","target":"graph","created_at":"2026-05-18T00:29:29Z","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 atmospheres of between one quarter and one half of observed single white dwarfs in the Milky Way contain heavy element pollution from planetary debris. The pollution observed in white dwarfs in binary star systems is, however, less clear, because companion star winds can generate a stream of matter which is accreted by the white dwarf. Here we (i) discuss the necessity or lack thereof of a major planet in order to pollute a white dwarf with orbiting minor planets in both single and binary systems, and (ii) determine the critical binary separation beyond which the accretion source is from a","authors_text":"Alberto Rebassa-Mansergas, Dimitri Veras, Siyi Xu","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-08-17T18:00:06Z","title":"The critical binary star separation for a planetary system origin of white dwarf pollution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.05391","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":"sha256:37e9f64cc621f4df68d9ec159381bf8935ca4b9a4c2f23ecdffd798b11f203ea","target":"record","created_at":"2026-05-18T00:29:29Z","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":"4ac6529c8e6fa809cc086ce90961617f47447d11a71c4dc1a5d81b76e14f5b41","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-08-17T18:00:06Z","title_canon_sha256":"127e76a50bbe1e3fa446f5c8e2d570c8d025b3dc334df1214ad4c937aadec8ff"},"schema_version":"1.0","source":{"id":"1708.05391","kind":"arxiv","version":1}},"canonical_sha256":"7ec73284c48cdfbbbf671d444342eefee7b59da7d707a442bee4b95bc48c276e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7ec73284c48cdfbbbf671d444342eefee7b59da7d707a442bee4b95bc48c276e","first_computed_at":"2026-05-18T00:29:29.218957Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:29:29.218957Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V2Lp+fBwNbC7sHsDZr54Z/CZuZrgFrmt298M+bm8diOUU0Smp76WvNP6rTwdi9IOteWVRmo78kzHcU7I92Z8Aw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:29:29.219526Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.05391","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:37e9f64cc621f4df68d9ec159381bf8935ca4b9a4c2f23ecdffd798b11f203ea","sha256:357d83133eb9a1eaad54f3b332804d416f07bae4583d04539586d2725e04ddfc"],"state_sha256":"1e720bea3c8a8581b9a40ee1c86a12d07853c5926ca99c3eaa598ae17270275b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0NRqmLS5wPMDl7z5DwA7iwUJVy689Nxzud1nHlGK3sbQU/eZ5eYrUF/1Fodnparv87aIAJwgz+DQ+qWhhX/DAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T06:54:44.217008Z","bundle_sha256":"7defdc06c9c3be00e9d4a2ef600f46c371c1cfe8249f6065a3e669db04d2d924"}}