{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:G4GJQCBPNAAWHR4PIB3L44Z4PF","short_pith_number":"pith:G4GJQCBP","canonical_record":{"source":{"id":"astro-ph/0701307","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-01-10T18:00:56Z","cross_cats_sorted":[],"title_canon_sha256":"db16555093ed908fb2ff8a86afff5279f5645fc038dc98143f7a0fae98c50a6d","abstract_canon_sha256":"4f80daae562dc774107fcec7452424c3f2737d309c32b83be13a1a6a06541907"},"schema_version":"1.0"},"canonical_sha256":"370c98082f680163c78f4076be733c796717368fb0e105290b42d810d90fe040","source":{"kind":"arxiv","id":"astro-ph/0701307","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0701307","created_at":"2026-05-18T04:29:07Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0701307v1","created_at":"2026-05-18T04:29:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0701307","created_at":"2026-05-18T04:29:07Z"},{"alias_kind":"pith_short_12","alias_value":"G4GJQCBPNAAW","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"G4GJQCBPNAAWHR4P","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"G4GJQCBP","created_at":"2026-05-18T12:25:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:G4GJQCBPNAAWHR4PIB3L44Z4PF","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0701307","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-01-10T18:00:56Z","cross_cats_sorted":[],"title_canon_sha256":"db16555093ed908fb2ff8a86afff5279f5645fc038dc98143f7a0fae98c50a6d","abstract_canon_sha256":"4f80daae562dc774107fcec7452424c3f2737d309c32b83be13a1a6a06541907"},"schema_version":"1.0"},"canonical_sha256":"370c98082f680163c78f4076be733c796717368fb0e105290b42d810d90fe040","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:07.473290Z","signature_b64":"G/7R6YqBC/HeqMFqputGrf87qGRLxkJ3mFcXUHqe8+t/aHOkJ/oADNvwD73EmOyOLJlkQHn2XL3R6VCFTUQhAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"370c98082f680163c78f4076be733c796717368fb0e105290b42d810d90fe040","last_reissued_at":"2026-05-18T04:29:07.472479Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:07.472479Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0701307","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":"2026-05-18T04:29:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0YGEmKSk7DpMCYrq/oh9PtJIzDfbGAOluBLAxwxMjvlehR1nUIwduOTTY1EOs876aD6EEQGvF+YhP68nTqw3Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T00:23:07.855629Z"},"content_sha256":"85841c17966d3ebadd8a64795d8350ec4c74b6c3bdd32a7d40fba40aabe8c748","schema_version":"1.0","event_id":"sha256:85841c17966d3ebadd8a64795d8350ec4c74b6c3bdd32a7d40fba40aabe8c748"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:G4GJQCBPNAAWHR4PIB3L44Z4PF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spitzer Space Telescope observations of magnetic cataclysmic variables: possibilities for the presence of dust in polars","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. A. Esin, C. S. Brinkworth, D. R. Ciardi, D. W. Hoard, G. T. van Belle, P. Szkody, S. B. Howell, S. Wachter, T. E. Harrison","submitted_at":"2007-01-10T18:00:56Z","abstract_excerpt":"We present Spitzer Space Telescope photometry of six short-period polars, EF Eri, V347 Pav, VV Pup, V834 Cen, GG Leo, and MR Ser. We have combined the Spitzer Infrared Array Camera (3.6 -8.0 microns) data with the 2MASS J, H, K_s photometry to construct the spectral energy distributions of these systems from the near- to mid-IR (1.235 - 8 microns). We find that five out of the six polars have flux densities in the mid-IR that are substantially in excess of the values expected from the stellar components alone. We have modeled the observed SEDs with a combination of contributions from the white"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0701307","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":"2026-05-18T04:29:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4Ap/rpUC7P2zNDSmJCgz7+tJ2uEJvyefvg6JPrMg6v/cI07ghM7rHkCI0ip8pIJWlbn0GaJXh+MiYZ8yEqLhCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T00:23:07.855997Z"},"content_sha256":"27db20889d058cf50b74dd1a646945bd6d0a374a642d5264d01ac9d6747da09a","schema_version":"1.0","event_id":"sha256:27db20889d058cf50b74dd1a646945bd6d0a374a642d5264d01ac9d6747da09a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G4GJQCBPNAAWHR4PIB3L44Z4PF/bundle.json","state_url":"https://pith.science/pith/G4GJQCBPNAAWHR4PIB3L44Z4PF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G4GJQCBPNAAWHR4PIB3L44Z4PF/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":"2026-05-27T00:23:07Z","links":{"resolver":"https://pith.science/pith/G4GJQCBPNAAWHR4PIB3L44Z4PF","bundle":"https://pith.science/pith/G4GJQCBPNAAWHR4PIB3L44Z4PF/bundle.json","state":"https://pith.science/pith/G4GJQCBPNAAWHR4PIB3L44Z4PF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G4GJQCBPNAAWHR4PIB3L44Z4PF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:G4GJQCBPNAAWHR4PIB3L44Z4PF","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":"4f80daae562dc774107fcec7452424c3f2737d309c32b83be13a1a6a06541907","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-01-10T18:00:56Z","title_canon_sha256":"db16555093ed908fb2ff8a86afff5279f5645fc038dc98143f7a0fae98c50a6d"},"schema_version":"1.0","source":{"id":"astro-ph/0701307","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0701307","created_at":"2026-05-18T04:29:07Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0701307v1","created_at":"2026-05-18T04:29:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0701307","created_at":"2026-05-18T04:29:07Z"},{"alias_kind":"pith_short_12","alias_value":"G4GJQCBPNAAW","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"G4GJQCBPNAAWHR4P","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"G4GJQCBP","created_at":"2026-05-18T12:25:55Z"}],"graph_snapshots":[{"event_id":"sha256:27db20889d058cf50b74dd1a646945bd6d0a374a642d5264d01ac9d6747da09a","target":"graph","created_at":"2026-05-18T04:29:07Z","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 Spitzer Space Telescope photometry of six short-period polars, EF Eri, V347 Pav, VV Pup, V834 Cen, GG Leo, and MR Ser. We have combined the Spitzer Infrared Array Camera (3.6 -8.0 microns) data with the 2MASS J, H, K_s photometry to construct the spectral energy distributions of these systems from the near- to mid-IR (1.235 - 8 microns). We find that five out of the six polars have flux densities in the mid-IR that are substantially in excess of the values expected from the stellar components alone. We have modeled the observed SEDs with a combination of contributions from the white","authors_text":"A. A. Esin, C. S. Brinkworth, D. R. Ciardi, D. W. Hoard, G. T. van Belle, P. Szkody, S. B. Howell, S. Wachter, T. E. Harrison","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-01-10T18:00:56Z","title":"Spitzer Space Telescope observations of magnetic cataclysmic variables: possibilities for the presence of dust in polars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0701307","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":"sha256:85841c17966d3ebadd8a64795d8350ec4c74b6c3bdd32a7d40fba40aabe8c748","target":"record","created_at":"2026-05-18T04:29:07Z","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":"4f80daae562dc774107fcec7452424c3f2737d309c32b83be13a1a6a06541907","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-01-10T18:00:56Z","title_canon_sha256":"db16555093ed908fb2ff8a86afff5279f5645fc038dc98143f7a0fae98c50a6d"},"schema_version":"1.0","source":{"id":"astro-ph/0701307","kind":"arxiv","version":1}},"canonical_sha256":"370c98082f680163c78f4076be733c796717368fb0e105290b42d810d90fe040","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"370c98082f680163c78f4076be733c796717368fb0e105290b42d810d90fe040","first_computed_at":"2026-05-18T04:29:07.472479Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:29:07.472479Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"G/7R6YqBC/HeqMFqputGrf87qGRLxkJ3mFcXUHqe8+t/aHOkJ/oADNvwD73EmOyOLJlkQHn2XL3R6VCFTUQhAg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:29:07.473290Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0701307","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:85841c17966d3ebadd8a64795d8350ec4c74b6c3bdd32a7d40fba40aabe8c748","sha256:27db20889d058cf50b74dd1a646945bd6d0a374a642d5264d01ac9d6747da09a"],"state_sha256":"f64c1739e0241cb48f45c49190a0716ddc789916981c408a26803817d3d32ff5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IdiViDa1CiepgQ6QUXd+2prP3U/pr1Nq1Ac7tEs2X3c4XTV3iX0e6ScB5B0TerfPGK0ihl+oh60wmzCZuG/rDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T00:23:07.859150Z","bundle_sha256":"bdb6637fc263279222fd53a63041fdb062b078b846d4c5e4132b0bd20cbc2481"}}