{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:5KJSGJAKUY7QQMC6V2COAAYEGM","short_pith_number":"pith:5KJSGJAK","canonical_record":{"source":{"id":"2608.00046","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-07-24T18:01:15Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"b29eb435b5d0da76639b2b499221d931edf55b76b3fc79bc7146cc37e2cdabc4","abstract_canon_sha256":"2cdbbe019d9491c5850c9cefc1fefea50eb07046583d421fe1aa351bd57cacdf"},"schema_version":"1.0"},"canonical_sha256":"ea9323240aa63f08305eae84e0030433393966f0a72f3bb9b96e67848c4c6fff","source":{"kind":"arxiv","id":"2608.00046","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.00046","created_at":"2026-08-04T00:31:50Z"},{"alias_kind":"arxiv_version","alias_value":"2608.00046v1","created_at":"2026-08-04T00:31:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.00046","created_at":"2026-08-04T00:31:50Z"},{"alias_kind":"pith_short_12","alias_value":"5KJSGJAKUY7Q","created_at":"2026-08-04T00:31:50Z"},{"alias_kind":"pith_short_16","alias_value":"5KJSGJAKUY7QQMC6","created_at":"2026-08-04T00:31:50Z"},{"alias_kind":"pith_short_8","alias_value":"5KJSGJAK","created_at":"2026-08-04T00:31:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:5KJSGJAKUY7QQMC6V2COAAYEGM","target":"record","payload":{"canonical_record":{"source":{"id":"2608.00046","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-07-24T18:01:15Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"b29eb435b5d0da76639b2b499221d931edf55b76b3fc79bc7146cc37e2cdabc4","abstract_canon_sha256":"2cdbbe019d9491c5850c9cefc1fefea50eb07046583d421fe1aa351bd57cacdf"},"schema_version":"1.0"},"canonical_sha256":"ea9323240aa63f08305eae84e0030433393966f0a72f3bb9b96e67848c4c6fff","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-04T00:31:50.441277Z","signature_b64":"yR74P1h3hGFqmTEArsC35RgNOnqa7KktOVpmvISL7UmuwBfFm6JfwccDQbjRvh+d0oAf8tRxjF743v81NInZCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ea9323240aa63f08305eae84e0030433393966f0a72f3bb9b96e67848c4c6fff","last_reissued_at":"2026-08-04T00:31:50.439401Z","signature_status":"signed_v1","first_computed_at":"2026-08-04T00:31:50.439401Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.00046","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":"2026-08-04T00:31:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oxHWP0t0iXjxHuNAvh9GTBEZzvY8YT/Bcyj2sfDuznqhsWr3qymxkaup/TcNHtZmYaI3IobVtqE0+KIHyWm8Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T11:47:28.975458Z"},"content_sha256":"457d236a3ca683af7ec6cd26a5b35faf0832cf301fc15a441207ea34067846c4","schema_version":"1.0","event_id":"sha256:457d236a3ca683af7ec6cd26a5b35faf0832cf301fc15a441207ea34067846c4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:5KJSGJAKUY7QQMC6V2COAAYEGM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SMDET-1: a Nearby Y Dwarf Candidate","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Adam C. Schneider, Dan Caselden, Federico Marocco, Jacqueline K. Faherty, J. Davy Kirkpatrick, Jonathan Gagn\\'e, Marc J. Kuchner, Sam Barber, Samuel A. Beiler, Sergio B. Fajardo-Acosta, Stanimir A. Metchev, The Backyard Worlds: Planet 9 Collaboration: Aaron M. Meisner, Thomas P. Bickle, Zafar Rustamkulov","submitted_at":"2026-07-24T18:01:15Z","abstract_excerpt":"We present the discovery of SMDET-1, a red, fast-moving object ($\\mu \\approx 1.3$\"/yr) identified in time-resolved unWISE coadds using a pixel-level deep learning methodology called SMDET. Despite being relatively bright at 4.5 microns compared to many other recent WISE-based brown dwarf discoveries ($m_{[4.5]} \\approx 14.6$ mag Vega), SMDET-1 had remained overlooked due to its location in a very crowded Galactic plane field ($b \\approx 2.25^{\\circ}$) and contamination from brighter background objects. SMDET-1 is also serendipitously detected at 4.5 microns in late-2012 Spitzer Deep GLIMPSE su"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.00046","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2608.00046/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":"2026-08-04T00:31:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"So8zEgINE5Er+rfBjQc4NT+2xSx8e7obcgEgy6hnB1B/uQFI0QlO6TDGiezfhpcnTEANJ+td52bUidDWBDjHBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T11:47:28.976586Z"},"content_sha256":"399988371727166ffe595609a7339b608d38c3f3576d757698c0108419f37cee","schema_version":"1.0","event_id":"sha256:399988371727166ffe595609a7339b608d38c3f3576d757698c0108419f37cee"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5KJSGJAKUY7QQMC6V2COAAYEGM/bundle.json","state_url":"https://pith.science/pith/5KJSGJAKUY7QQMC6V2COAAYEGM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5KJSGJAKUY7QQMC6V2COAAYEGM/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":"2026-08-05T11:47:28Z","links":{"resolver":"https://pith.science/pith/5KJSGJAKUY7QQMC6V2COAAYEGM","bundle":"https://pith.science/pith/5KJSGJAKUY7QQMC6V2COAAYEGM/bundle.json","state":"https://pith.science/pith/5KJSGJAKUY7QQMC6V2COAAYEGM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5KJSGJAKUY7QQMC6V2COAAYEGM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:5KJSGJAKUY7QQMC6V2COAAYEGM","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":"2cdbbe019d9491c5850c9cefc1fefea50eb07046583d421fe1aa351bd57cacdf","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-07-24T18:01:15Z","title_canon_sha256":"b29eb435b5d0da76639b2b499221d931edf55b76b3fc79bc7146cc37e2cdabc4"},"schema_version":"1.0","source":{"id":"2608.00046","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.00046","created_at":"2026-08-04T00:31:50Z"},{"alias_kind":"arxiv_version","alias_value":"2608.00046v1","created_at":"2026-08-04T00:31:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.00046","created_at":"2026-08-04T00:31:50Z"},{"alias_kind":"pith_short_12","alias_value":"5KJSGJAKUY7Q","created_at":"2026-08-04T00:31:50Z"},{"alias_kind":"pith_short_16","alias_value":"5KJSGJAKUY7QQMC6","created_at":"2026-08-04T00:31:50Z"},{"alias_kind":"pith_short_8","alias_value":"5KJSGJAK","created_at":"2026-08-04T00:31:50Z"}],"graph_snapshots":[{"event_id":"sha256:399988371727166ffe595609a7339b608d38c3f3576d757698c0108419f37cee","target":"graph","created_at":"2026-08-04T00:31:50Z","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/2608.00046/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the discovery of SMDET-1, a red, fast-moving object ($\\mu \\approx 1.3$\"/yr) identified in time-resolved unWISE coadds using a pixel-level deep learning methodology called SMDET. Despite being relatively bright at 4.5 microns compared to many other recent WISE-based brown dwarf discoveries ($m_{[4.5]} \\approx 14.6$ mag Vega), SMDET-1 had remained overlooked due to its location in a very crowded Galactic plane field ($b \\approx 2.25^{\\circ}$) and contamination from brighter background objects. SMDET-1 is also serendipitously detected at 4.5 microns in late-2012 Spitzer Deep GLIMPSE su","authors_text":"Adam C. Schneider, Dan Caselden, Federico Marocco, Jacqueline K. Faherty, J. Davy Kirkpatrick, Jonathan Gagn\\'e, Marc J. Kuchner, Sam Barber, Samuel A. Beiler, Sergio B. Fajardo-Acosta, Stanimir A. Metchev, The Backyard Worlds: Planet 9 Collaboration: Aaron M. Meisner, Thomas P. Bickle, Zafar Rustamkulov","cross_cats":["astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-07-24T18:01:15Z","title":"SMDET-1: a Nearby Y Dwarf Candidate"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.00046","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":"sha256:457d236a3ca683af7ec6cd26a5b35faf0832cf301fc15a441207ea34067846c4","target":"record","created_at":"2026-08-04T00:31:50Z","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":"2cdbbe019d9491c5850c9cefc1fefea50eb07046583d421fe1aa351bd57cacdf","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-07-24T18:01:15Z","title_canon_sha256":"b29eb435b5d0da76639b2b499221d931edf55b76b3fc79bc7146cc37e2cdabc4"},"schema_version":"1.0","source":{"id":"2608.00046","kind":"arxiv","version":1}},"canonical_sha256":"ea9323240aa63f08305eae84e0030433393966f0a72f3bb9b96e67848c4c6fff","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea9323240aa63f08305eae84e0030433393966f0a72f3bb9b96e67848c4c6fff","first_computed_at":"2026-08-04T00:31:50.439401Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-04T00:31:50.439401Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yR74P1h3hGFqmTEArsC35RgNOnqa7KktOVpmvISL7UmuwBfFm6JfwccDQbjRvh+d0oAf8tRxjF743v81NInZCA==","signature_status":"signed_v1","signed_at":"2026-08-04T00:31:50.441277Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.00046","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:457d236a3ca683af7ec6cd26a5b35faf0832cf301fc15a441207ea34067846c4","sha256:399988371727166ffe595609a7339b608d38c3f3576d757698c0108419f37cee"],"state_sha256":"02cc25d17fa6b2e498de39d4b3144917457e9c46e4c56cef6a29ec7423a21c71"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PbWQKvIY0Xw+7a+XPLGqs6ZPNfOiv/KGnN7kJ9DmRt48UptBQqFsyyW3TwBuisYWTmAriz7h6GJgr7NcISDXDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T11:47:28.984648Z","bundle_sha256":"977e2b12871dfcd2536c5827e3ae7251fbb9381394eb25a734b9c61b53d9c891"}}