{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:CDJRRKKSQDEECLS3IQTSWAC6CO","short_pith_number":"pith:CDJRRKKS","canonical_record":{"source":{"id":"astro-ph/0501636","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-01-28T18:31:27Z","cross_cats_sorted":[],"title_canon_sha256":"c8d651cc41ca6e2d87454a5c6b99f6b5c1e6fede7a6aa0b8545389ffe3eaa445","abstract_canon_sha256":"bc78146603c537ef2ccaa07490eadbdd18686f38cb4d34a94fcaff54a8dc3b7c"},"schema_version":"1.0"},"canonical_sha256":"10d318a95280c8412e5b44272b005e13b15fce380f8685440d06b22dda5b5948","source":{"kind":"arxiv","id":"astro-ph/0501636","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0501636","created_at":"2026-07-04T16:50:43Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0501636v1","created_at":"2026-07-04T16:50:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0501636","created_at":"2026-07-04T16:50:43Z"},{"alias_kind":"pith_short_12","alias_value":"CDJRRKKSQDEE","created_at":"2026-07-04T16:50:43Z"},{"alias_kind":"pith_short_16","alias_value":"CDJRRKKSQDEECLS3","created_at":"2026-07-04T16:50:43Z"},{"alias_kind":"pith_short_8","alias_value":"CDJRRKKS","created_at":"2026-07-04T16:50:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:CDJRRKKSQDEECLS3IQTSWAC6CO","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0501636","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-01-28T18:31:27Z","cross_cats_sorted":[],"title_canon_sha256":"c8d651cc41ca6e2d87454a5c6b99f6b5c1e6fede7a6aa0b8545389ffe3eaa445","abstract_canon_sha256":"bc78146603c537ef2ccaa07490eadbdd18686f38cb4d34a94fcaff54a8dc3b7c"},"schema_version":"1.0"},"canonical_sha256":"10d318a95280c8412e5b44272b005e13b15fce380f8685440d06b22dda5b5948","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:50:43.461307Z","signature_b64":"4j+IJnZ5EMWhgPRxvnXNpzTq/OIBW7pNdwZMdcSxUgoXshufvaj+ceOcbnMLRyi1zW4+rI/mqCqZZLg2bEVXBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"10d318a95280c8412e5b44272b005e13b15fce380f8685440d06b22dda5b5948","last_reissued_at":"2026-07-04T16:50:43.460901Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:50:43.460901Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0501636","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":"2026-07-04T16:50:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vWC1Z45UAFVhTyMmZjk+tnnLaBqcKNc5/7qWRjwcGTdsfvpTaZMV8/diMSFtZ7uoHoO8YEE3D0xpbSAzOq6gAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T09:00:32.218998Z"},"content_sha256":"6765fa7e9d6bc3801dc5c8d5bffaa56ac46207950b20ef3c443a279576a5480b","schema_version":"1.0","event_id":"sha256:6765fa7e9d6bc3801dc5c8d5bffaa56ac46207950b20ef3c443a279576a5480b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:CDJRRKKSQDEECLS3IQTSWAC6CO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A deep, wide-field search for substellar members in NGC 2264","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D.J. James & F. Menard, E. Moraux, J. Bouvier, T.R. Kendall","submitted_at":"2005-01-28T18:31:27Z","abstract_excerpt":"We report the first results of our ongoing campaign to discover the first brown dwarfs (BD) in NGC 2264, a young (3 Myr), populous star forming region for which our optical studies have revealed a very high density of potential candidates - 236 in $<$ 1 deg$^2$ - from the substellar limit down to at least $\\sim$ 20 M$_{\\rm Jup}$ for zero reddening. Candidate BD were first selected using wide field ($I,z$) band imaging with CFH12K, by reference to current theoretical isochrones. Subsequently, 79 (33%) of the $I,z$ sample were found to have near-infrared 2MASS photometry ($JHK_s$ $\\pm$ 0.3 mag. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0501636","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/astro-ph/0501636/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":"2026-07-04T16:50:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XcM+N2jomkJBhXgj+PVx4tROArABs1dok20yLgLZrXCmnVzNAf4j0pWSwChL1nV6wit2JjweAbqgmu7Q1bjWDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T09:00:32.219488Z"},"content_sha256":"be58d02c53465b085e96dfbf0232c0cfcc637f4507d0eaf2f0a39176f122cc41","schema_version":"1.0","event_id":"sha256:be58d02c53465b085e96dfbf0232c0cfcc637f4507d0eaf2f0a39176f122cc41"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CDJRRKKSQDEECLS3IQTSWAC6CO/bundle.json","state_url":"https://pith.science/pith/CDJRRKKSQDEECLS3IQTSWAC6CO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CDJRRKKSQDEECLS3IQTSWAC6CO/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":"2026-08-06T09:00:32Z","links":{"resolver":"https://pith.science/pith/CDJRRKKSQDEECLS3IQTSWAC6CO","bundle":"https://pith.science/pith/CDJRRKKSQDEECLS3IQTSWAC6CO/bundle.json","state":"https://pith.science/pith/CDJRRKKSQDEECLS3IQTSWAC6CO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CDJRRKKSQDEECLS3IQTSWAC6CO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:CDJRRKKSQDEECLS3IQTSWAC6CO","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":"bc78146603c537ef2ccaa07490eadbdd18686f38cb4d34a94fcaff54a8dc3b7c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-01-28T18:31:27Z","title_canon_sha256":"c8d651cc41ca6e2d87454a5c6b99f6b5c1e6fede7a6aa0b8545389ffe3eaa445"},"schema_version":"1.0","source":{"id":"astro-ph/0501636","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0501636","created_at":"2026-07-04T16:50:43Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0501636v1","created_at":"2026-07-04T16:50:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0501636","created_at":"2026-07-04T16:50:43Z"},{"alias_kind":"pith_short_12","alias_value":"CDJRRKKSQDEE","created_at":"2026-07-04T16:50:43Z"},{"alias_kind":"pith_short_16","alias_value":"CDJRRKKSQDEECLS3","created_at":"2026-07-04T16:50:43Z"},{"alias_kind":"pith_short_8","alias_value":"CDJRRKKS","created_at":"2026-07-04T16:50:43Z"}],"graph_snapshots":[{"event_id":"sha256:be58d02c53465b085e96dfbf0232c0cfcc637f4507d0eaf2f0a39176f122cc41","target":"graph","created_at":"2026-07-04T16:50:43Z","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/astro-ph/0501636/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the first results of our ongoing campaign to discover the first brown dwarfs (BD) in NGC 2264, a young (3 Myr), populous star forming region for which our optical studies have revealed a very high density of potential candidates - 236 in $<$ 1 deg$^2$ - from the substellar limit down to at least $\\sim$ 20 M$_{\\rm Jup}$ for zero reddening. Candidate BD were first selected using wide field ($I,z$) band imaging with CFH12K, by reference to current theoretical isochrones. Subsequently, 79 (33%) of the $I,z$ sample were found to have near-infrared 2MASS photometry ($JHK_s$ $\\pm$ 0.3 mag. ","authors_text":"D.J. James & F. Menard, E. Moraux, J. Bouvier, T.R. Kendall","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-01-28T18:31:27Z","title":"A deep, wide-field search for substellar members in NGC 2264"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0501636","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":"sha256:6765fa7e9d6bc3801dc5c8d5bffaa56ac46207950b20ef3c443a279576a5480b","target":"record","created_at":"2026-07-04T16:50:43Z","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":"bc78146603c537ef2ccaa07490eadbdd18686f38cb4d34a94fcaff54a8dc3b7c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-01-28T18:31:27Z","title_canon_sha256":"c8d651cc41ca6e2d87454a5c6b99f6b5c1e6fede7a6aa0b8545389ffe3eaa445"},"schema_version":"1.0","source":{"id":"astro-ph/0501636","kind":"arxiv","version":1}},"canonical_sha256":"10d318a95280c8412e5b44272b005e13b15fce380f8685440d06b22dda5b5948","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"10d318a95280c8412e5b44272b005e13b15fce380f8685440d06b22dda5b5948","first_computed_at":"2026-07-04T16:50:43.460901Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:50:43.460901Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4j+IJnZ5EMWhgPRxvnXNpzTq/OIBW7pNdwZMdcSxUgoXshufvaj+ceOcbnMLRyi1zW4+rI/mqCqZZLg2bEVXBg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:50:43.461307Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0501636","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6765fa7e9d6bc3801dc5c8d5bffaa56ac46207950b20ef3c443a279576a5480b","sha256:be58d02c53465b085e96dfbf0232c0cfcc637f4507d0eaf2f0a39176f122cc41"],"state_sha256":"1f20672d299ea5f018aebe74f18e76da58ca1ce7a76b7901cba1e782565fe6ab"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PqTDFhx6HkfTvwJCyhc2tKx/ZtJ6HBeUXvRmW/RWASjNNfGLoi20ECwwbNOKKO+RXv4e0i9aKxKwNp16Cy6LCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T09:00:32.222675Z","bundle_sha256":"04914ac720f2de8f68a42b411c4aae777091f02163552913d8455f96c83d2b7a"}}