{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:AOC3LL4CK5IZ4COPBEMJA42RWI","short_pith_number":"pith:AOC3LL4C","canonical_record":{"source":{"id":"1102.0795","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-03T21:50:42Z","cross_cats_sorted":[],"title_canon_sha256":"c170b5d3c2be4df3845fc03b331dd7b5955e438a72a2e7f222d71e1c23231aa3","abstract_canon_sha256":"eebbe1933cd17e13865ed739cb4be566144b2a680ca14e738822c12173ea0213"},"schema_version":"1.0"},"canonical_sha256":"0385b5af8257519e09cf0918907351b22c073ee7f2f41fede235eda0e6c425c0","source":{"kind":"arxiv","id":"1102.0795","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.0795","created_at":"2026-05-18T02:03:16Z"},{"alias_kind":"arxiv_version","alias_value":"1102.0795v1","created_at":"2026-05-18T02:03:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.0795","created_at":"2026-05-18T02:03:16Z"},{"alias_kind":"pith_short_12","alias_value":"AOC3LL4CK5IZ","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"AOC3LL4CK5IZ4COP","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"AOC3LL4C","created_at":"2026-05-18T12:26:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:AOC3LL4CK5IZ4COPBEMJA42RWI","target":"record","payload":{"canonical_record":{"source":{"id":"1102.0795","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-03T21:50:42Z","cross_cats_sorted":[],"title_canon_sha256":"c170b5d3c2be4df3845fc03b331dd7b5955e438a72a2e7f222d71e1c23231aa3","abstract_canon_sha256":"eebbe1933cd17e13865ed739cb4be566144b2a680ca14e738822c12173ea0213"},"schema_version":"1.0"},"canonical_sha256":"0385b5af8257519e09cf0918907351b22c073ee7f2f41fede235eda0e6c425c0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:03:16.945311Z","signature_b64":"TMo86CFmVhI64+9U6R8bi+kUzLSe5YfH++g+s0Ve62bxUr6n6/fQ9JRN4r39THEWa5AcJHA7+JCX8e39IB7MCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0385b5af8257519e09cf0918907351b22c073ee7f2f41fede235eda0e6c425c0","last_reissued_at":"2026-05-18T02:03:16.944814Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:03:16.944814Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1102.0795","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":"2026-05-18T02:03:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pRv6jPkHaKU8gzrEbozWMtGbImZYNP+0cvdIixCj6lh3/VlWqdTzjlHu8s95hqdvSA86rVhTJzZF2QPTUdH5AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T05:21:56.201329Z"},"content_sha256":"a69c65f493e71a1f01b0f670a737ddd566cc4dfd128d82a65695bff0da2498b1","schema_version":"1.0","event_id":"sha256:a69c65f493e71a1f01b0f670a737ddd566cc4dfd128d82a65695bff0da2498b1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:AOC3LL4CK5IZ4COPBEMJA42RWI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spectroscopic confirmation of UV-bright white dwarfs from the Sandage Two-Color Survey of the Galactic Plane","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Howard H. Lanning, P. Bergeron, Sebastien Lepine","submitted_at":"2011-02-03T21:50:42Z","abstract_excerpt":"We present spectroscopic observations confirming the identification of hot white dwarfs among UV-bright sources from the Sandage Two-color Survey of the Galactic plane and listed in the Lanning (Lan) catalog of such sources. A subsample of 213 UV bright Lan sources have been identified as candidate white dwarfs based on the detection of a significant proper motion. Spectroscopic observations of 46 candidates with the KPNO 2.1m telescope confirm 30 sources to be hydrogen white dwarfs with subtypes in the DA1-DA6 range, and with one of the stars (Lan 161) having an unresolved M dwarf as a compan"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.0795","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":"2026-05-18T02:03:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7sGUBbnyl88kEJ49yuhr4wVnkbcseBTrlAq7iuwX1P818n1tpoca+bhmlN6jhsnHbZ+bft6Mx0MtZo0bCerJBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T05:21:56.201687Z"},"content_sha256":"1469d908db6d6e28f56427236dec3a579b068942b017c2a6c6660414870b8a14","schema_version":"1.0","event_id":"sha256:1469d908db6d6e28f56427236dec3a579b068942b017c2a6c6660414870b8a14"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AOC3LL4CK5IZ4COPBEMJA42RWI/bundle.json","state_url":"https://pith.science/pith/AOC3LL4CK5IZ4COPBEMJA42RWI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AOC3LL4CK5IZ4COPBEMJA42RWI/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":"2026-06-01T05:21:56Z","links":{"resolver":"https://pith.science/pith/AOC3LL4CK5IZ4COPBEMJA42RWI","bundle":"https://pith.science/pith/AOC3LL4CK5IZ4COPBEMJA42RWI/bundle.json","state":"https://pith.science/pith/AOC3LL4CK5IZ4COPBEMJA42RWI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AOC3LL4CK5IZ4COPBEMJA42RWI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:AOC3LL4CK5IZ4COPBEMJA42RWI","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":"eebbe1933cd17e13865ed739cb4be566144b2a680ca14e738822c12173ea0213","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-03T21:50:42Z","title_canon_sha256":"c170b5d3c2be4df3845fc03b331dd7b5955e438a72a2e7f222d71e1c23231aa3"},"schema_version":"1.0","source":{"id":"1102.0795","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.0795","created_at":"2026-05-18T02:03:16Z"},{"alias_kind":"arxiv_version","alias_value":"1102.0795v1","created_at":"2026-05-18T02:03:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.0795","created_at":"2026-05-18T02:03:16Z"},{"alias_kind":"pith_short_12","alias_value":"AOC3LL4CK5IZ","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"AOC3LL4CK5IZ4COP","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"AOC3LL4C","created_at":"2026-05-18T12:26:24Z"}],"graph_snapshots":[{"event_id":"sha256:1469d908db6d6e28f56427236dec3a579b068942b017c2a6c6660414870b8a14","target":"graph","created_at":"2026-05-18T02:03:16Z","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":"We present spectroscopic observations confirming the identification of hot white dwarfs among UV-bright sources from the Sandage Two-color Survey of the Galactic plane and listed in the Lanning (Lan) catalog of such sources. A subsample of 213 UV bright Lan sources have been identified as candidate white dwarfs based on the detection of a significant proper motion. Spectroscopic observations of 46 candidates with the KPNO 2.1m telescope confirm 30 sources to be hydrogen white dwarfs with subtypes in the DA1-DA6 range, and with one of the stars (Lan 161) having an unresolved M dwarf as a compan","authors_text":"Howard H. Lanning, P. Bergeron, Sebastien Lepine","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-03T21:50:42Z","title":"Spectroscopic confirmation of UV-bright white dwarfs from the Sandage Two-Color Survey of the Galactic Plane"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.0795","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:a69c65f493e71a1f01b0f670a737ddd566cc4dfd128d82a65695bff0da2498b1","target":"record","created_at":"2026-05-18T02:03:16Z","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":"eebbe1933cd17e13865ed739cb4be566144b2a680ca14e738822c12173ea0213","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-03T21:50:42Z","title_canon_sha256":"c170b5d3c2be4df3845fc03b331dd7b5955e438a72a2e7f222d71e1c23231aa3"},"schema_version":"1.0","source":{"id":"1102.0795","kind":"arxiv","version":1}},"canonical_sha256":"0385b5af8257519e09cf0918907351b22c073ee7f2f41fede235eda0e6c425c0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0385b5af8257519e09cf0918907351b22c073ee7f2f41fede235eda0e6c425c0","first_computed_at":"2026-05-18T02:03:16.944814Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:03:16.944814Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TMo86CFmVhI64+9U6R8bi+kUzLSe5YfH++g+s0Ve62bxUr6n6/fQ9JRN4r39THEWa5AcJHA7+JCX8e39IB7MCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:03:16.945311Z","signed_message":"canonical_sha256_bytes"},"source_id":"1102.0795","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a69c65f493e71a1f01b0f670a737ddd566cc4dfd128d82a65695bff0da2498b1","sha256:1469d908db6d6e28f56427236dec3a579b068942b017c2a6c6660414870b8a14"],"state_sha256":"b396d609a230f2b77ea8c2b8ef70bd5075e96319bc4d4a65d20a32b24d6c82b2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3dUAc4gNf9/vvotAfR9PwLms6wcxhUq50EUV39tzbpgsCOu3sgl/LfqybTN5eV2a4BRbIUjap25HV0F80LiCAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T05:21:56.203818Z","bundle_sha256":"fe4fc7586ab56f6e682e4aab7a75430ecc7e71efdd155f12ed3cd57f1c38ea17"}}