{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:WNADAVCKT533O6GPBADVHNLQPA","short_pith_number":"pith:WNADAVCK","canonical_record":{"source":{"id":"astro-ph/0603747","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-03-28T04:55:08Z","cross_cats_sorted":[],"title_canon_sha256":"e1e3cf2ba1304454f3affe3a2354b68f8ae08f7b8a5f69cacda0657405983f9c","abstract_canon_sha256":"aae6f02c4c4154a12eef130be1af512b142f1669170bc2fd14342317822e0df1"},"schema_version":"1.0"},"canonical_sha256":"b34030544a9f77b778cf080753b57078246c0d1c3d2ac9244c681bcef17627b1","source":{"kind":"arxiv","id":"astro-ph/0603747","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0603747","created_at":"2026-05-18T03:10:44Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0603747v2","created_at":"2026-05-18T03:10:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0603747","created_at":"2026-05-18T03:10:44Z"},{"alias_kind":"pith_short_12","alias_value":"WNADAVCKT533","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"WNADAVCKT533O6GP","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"WNADAVCK","created_at":"2026-05-18T12:25:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:WNADAVCKT533O6GPBADVHNLQPA","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0603747","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-03-28T04:55:08Z","cross_cats_sorted":[],"title_canon_sha256":"e1e3cf2ba1304454f3affe3a2354b68f8ae08f7b8a5f69cacda0657405983f9c","abstract_canon_sha256":"aae6f02c4c4154a12eef130be1af512b142f1669170bc2fd14342317822e0df1"},"schema_version":"1.0"},"canonical_sha256":"b34030544a9f77b778cf080753b57078246c0d1c3d2ac9244c681bcef17627b1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:10:44.462230Z","signature_b64":"OhOdMVkFkvjoLy/klYqIr+5JVr5VvkFcmG1WmLbXIev/lBrdS/dJgAF0sPHBJ6S3o0JSaqHvTRB7NNZaJkutCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b34030544a9f77b778cf080753b57078246c0d1c3d2ac9244c681bcef17627b1","last_reissued_at":"2026-05-18T03:10:44.461807Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:10:44.461807Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0603747","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":"2026-05-18T03:10:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PJXmAf98D7qLsY950Mrt9nqcMdXnVkGOKIHLFO69A/hb9Wqbif9vNoJCK+Wp+8VVUwZIlrAdz/bFTMLoDqtJDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T14:57:32.068428Z"},"content_sha256":"c12451c67f83bcff49115bb5ef75558b4751253c0e14e06cd1efde3cb5312ed8","schema_version":"1.0","event_id":"sha256:c12451c67f83bcff49115bb5ef75558b4751253c0e14e06cd1efde3cb5312ed8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:WNADAVCKT533O6GPBADVHNLQPA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"White Dwarf - Red Dwarf Systems Resolved with the Hubble Space Telescope: I. First Results","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D.W. Hoard, J. Farihi, S. Wachter","submitted_at":"2006-03-28T04:55:08Z","abstract_excerpt":"First results are presented for a Hubble Space Telescope Advanced Camera for Surveys snapshot study of white dwarfs with likely red dwarf companions. Of 48 targets observed and analyzed so far, 27 are totally or partially resolved into two or more components, while an additional 15 systems are almost certainly unresolved binaries. These results provide the first direct empirical evidence for a bimodal distribution of orbital separations among binary systems containing at least one white dwarf."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0603747","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":""},"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":"2026-05-18T03:10:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OS04YnGuOtn1xGRZ/0MXbnOqLAEgqNwqhThkeyRMknnQ+MJudqcFW12Kuypelm1u9JKgrfWwNW/t2JUk0teFBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T14:57:32.069151Z"},"content_sha256":"ee3b46efb3fb73d14c47b07ea5b36bc3c3555fd3206ead5398640a6fa314e0ac","schema_version":"1.0","event_id":"sha256:ee3b46efb3fb73d14c47b07ea5b36bc3c3555fd3206ead5398640a6fa314e0ac"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WNADAVCKT533O6GPBADVHNLQPA/bundle.json","state_url":"https://pith.science/pith/WNADAVCKT533O6GPBADVHNLQPA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WNADAVCKT533O6GPBADVHNLQPA/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":"2026-06-11T14:57:32Z","links":{"resolver":"https://pith.science/pith/WNADAVCKT533O6GPBADVHNLQPA","bundle":"https://pith.science/pith/WNADAVCKT533O6GPBADVHNLQPA/bundle.json","state":"https://pith.science/pith/WNADAVCKT533O6GPBADVHNLQPA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WNADAVCKT533O6GPBADVHNLQPA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:WNADAVCKT533O6GPBADVHNLQPA","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":"aae6f02c4c4154a12eef130be1af512b142f1669170bc2fd14342317822e0df1","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-03-28T04:55:08Z","title_canon_sha256":"e1e3cf2ba1304454f3affe3a2354b68f8ae08f7b8a5f69cacda0657405983f9c"},"schema_version":"1.0","source":{"id":"astro-ph/0603747","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0603747","created_at":"2026-05-18T03:10:44Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0603747v2","created_at":"2026-05-18T03:10:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0603747","created_at":"2026-05-18T03:10:44Z"},{"alias_kind":"pith_short_12","alias_value":"WNADAVCKT533","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"WNADAVCKT533O6GP","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"WNADAVCK","created_at":"2026-05-18T12:25:54Z"}],"graph_snapshots":[{"event_id":"sha256:ee3b46efb3fb73d14c47b07ea5b36bc3c3555fd3206ead5398640a6fa314e0ac","target":"graph","created_at":"2026-05-18T03:10:44Z","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":"First results are presented for a Hubble Space Telescope Advanced Camera for Surveys snapshot study of white dwarfs with likely red dwarf companions. Of 48 targets observed and analyzed so far, 27 are totally or partially resolved into two or more components, while an additional 15 systems are almost certainly unresolved binaries. These results provide the first direct empirical evidence for a bimodal distribution of orbital separations among binary systems containing at least one white dwarf.","authors_text":"D.W. Hoard, J. Farihi, S. Wachter","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-03-28T04:55:08Z","title":"White Dwarf - Red Dwarf Systems Resolved with the Hubble Space Telescope: I. First Results"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0603747","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:c12451c67f83bcff49115bb5ef75558b4751253c0e14e06cd1efde3cb5312ed8","target":"record","created_at":"2026-05-18T03:10:44Z","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":"aae6f02c4c4154a12eef130be1af512b142f1669170bc2fd14342317822e0df1","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-03-28T04:55:08Z","title_canon_sha256":"e1e3cf2ba1304454f3affe3a2354b68f8ae08f7b8a5f69cacda0657405983f9c"},"schema_version":"1.0","source":{"id":"astro-ph/0603747","kind":"arxiv","version":2}},"canonical_sha256":"b34030544a9f77b778cf080753b57078246c0d1c3d2ac9244c681bcef17627b1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b34030544a9f77b778cf080753b57078246c0d1c3d2ac9244c681bcef17627b1","first_computed_at":"2026-05-18T03:10:44.461807Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:10:44.461807Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OhOdMVkFkvjoLy/klYqIr+5JVr5VvkFcmG1WmLbXIev/lBrdS/dJgAF0sPHBJ6S3o0JSaqHvTRB7NNZaJkutCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:10:44.462230Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0603747","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c12451c67f83bcff49115bb5ef75558b4751253c0e14e06cd1efde3cb5312ed8","sha256:ee3b46efb3fb73d14c47b07ea5b36bc3c3555fd3206ead5398640a6fa314e0ac"],"state_sha256":"16a372a5690541f8653f605550b119a62e5e5902f6a8aaff1c410e624e7e424b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QK5kdwG+x95Y6ZIcb3hY1Y8A6Z1uK96IQ3HD84/dStLGYw/8tgTrdaemFoNcswrvx/kUbNbXemvY2qENGfl9CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T14:57:32.073066Z","bundle_sha256":"5ecc0cb0573cc46aa6b1661b4dc9ef2f5730d7876d96e156f40d71c71979b015"}}