{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:4R7N6Q4ZWYZRRRVNGGKD53SNMF","short_pith_number":"pith:4R7N6Q4Z","canonical_record":{"source":{"id":"astro-ph/0404576","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-04-29T14:08:57Z","cross_cats_sorted":[],"title_canon_sha256":"a5b668c521e0e978a6270118e0a879753d495eb6b96f97a10edc21acbdf39eb7","abstract_canon_sha256":"7ee5f120941ab41f5a7e81823fdcd46e62e37a409129fe7c4908016c74a5b166"},"schema_version":"1.0"},"canonical_sha256":"e47edf4399b63318c6ad31943eee4d61523d53e7d520b3685a9201da2b061627","source":{"kind":"arxiv","id":"astro-ph/0404576","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0404576","created_at":"2026-05-18T04:38:15Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0404576v1","created_at":"2026-05-18T04:38:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0404576","created_at":"2026-05-18T04:38:15Z"},{"alias_kind":"pith_short_12","alias_value":"4R7N6Q4ZWYZR","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"4R7N6Q4ZWYZRRRVN","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"4R7N6Q4Z","created_at":"2026-05-18T12:25:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:4R7N6Q4ZWYZRRRVNGGKD53SNMF","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0404576","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-04-29T14:08:57Z","cross_cats_sorted":[],"title_canon_sha256":"a5b668c521e0e978a6270118e0a879753d495eb6b96f97a10edc21acbdf39eb7","abstract_canon_sha256":"7ee5f120941ab41f5a7e81823fdcd46e62e37a409129fe7c4908016c74a5b166"},"schema_version":"1.0"},"canonical_sha256":"e47edf4399b63318c6ad31943eee4d61523d53e7d520b3685a9201da2b061627","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:38:15.920044Z","signature_b64":"Cx+JOgOHYtj9eVpJqKv13Qpkd1THqH+rTAj15NDW1juGyCXzCtgzxzJuyjFTmZsmc260VtPPQWRAgSmveHvqDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e47edf4399b63318c6ad31943eee4d61523d53e7d520b3685a9201da2b061627","last_reissued_at":"2026-05-18T04:38:15.919520Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:38:15.919520Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0404576","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":"2026-05-18T04:38:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/8Yv/L9H66uzpjl/PUEHrA2KAqresTFEG6n2xfsy6keErYEI5zKZARrNH6B/lWZ8dMVjMqW5X6ogtzaaLz6nDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:41:00.822642Z"},"content_sha256":"ecbcea520d896e54cc4b25822a65f3a8305109ac26abf12f686ae4310059a325","schema_version":"1.0","event_id":"sha256:ecbcea520d896e54cc4b25822a65f3a8305109ac26abf12f686ae4310059a325"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:4R7N6Q4ZWYZRRRVNGGKD53SNMF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A young binary Brown Dwarf in the R-CrA star formation region","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"E.L. Martin, F. Allard, H. Bouy, I. Baraffe, R. Demarco, T. Forveille, W. Brandner, X. Delfosse","submitted_at":"2004-04-29T14:08:57Z","abstract_excerpt":"We present imaging and spectroscopic observations with HST (WFPC2, ACS/HRC and STIS), VLT (FORS2) and Keck (HIRES) of the dM8 ultra-cool dwarf DENIS-P J185950.9-370632, located in the R-CrA region. The presence of lithium absorption at 670.8 nm and the strong Halpha emission indicate a young age and a sub-stellar mass. Our diffraction-limited images resolve a companion at the separation limit of HST/ACS (~0.06\"). The 2.1 mJy flux in the LW2 filter (5.0-8.5 microns) of the Infrared Space Observatory (see 1999A&A...350..883) likely corresponds to an infrared excess, suggesting the presence of ci"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0404576","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":"2026-05-18T04:38:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JO76r86nlEOVQ4UWqQ1r9NtMfa5U/sOlC00VJCejauZqiv0560M+NRUjghTscDw+z8+V8fDrBWu6ixdIHKPNCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:41:00.823140Z"},"content_sha256":"47a703664c720ecdca93faed508c3e3d9e5439d0247300be3a6bfb03d582a1ee","schema_version":"1.0","event_id":"sha256:47a703664c720ecdca93faed508c3e3d9e5439d0247300be3a6bfb03d582a1ee"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4R7N6Q4ZWYZRRRVNGGKD53SNMF/bundle.json","state_url":"https://pith.science/pith/4R7N6Q4ZWYZRRRVNGGKD53SNMF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4R7N6Q4ZWYZRRRVNGGKD53SNMF/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":"2026-05-26T21:41:00Z","links":{"resolver":"https://pith.science/pith/4R7N6Q4ZWYZRRRVNGGKD53SNMF","bundle":"https://pith.science/pith/4R7N6Q4ZWYZRRRVNGGKD53SNMF/bundle.json","state":"https://pith.science/pith/4R7N6Q4ZWYZRRRVNGGKD53SNMF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4R7N6Q4ZWYZRRRVNGGKD53SNMF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:4R7N6Q4ZWYZRRRVNGGKD53SNMF","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":"7ee5f120941ab41f5a7e81823fdcd46e62e37a409129fe7c4908016c74a5b166","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-04-29T14:08:57Z","title_canon_sha256":"a5b668c521e0e978a6270118e0a879753d495eb6b96f97a10edc21acbdf39eb7"},"schema_version":"1.0","source":{"id":"astro-ph/0404576","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0404576","created_at":"2026-05-18T04:38:15Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0404576v1","created_at":"2026-05-18T04:38:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0404576","created_at":"2026-05-18T04:38:15Z"},{"alias_kind":"pith_short_12","alias_value":"4R7N6Q4ZWYZR","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"4R7N6Q4ZWYZRRRVN","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"4R7N6Q4Z","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:47a703664c720ecdca93faed508c3e3d9e5439d0247300be3a6bfb03d582a1ee","target":"graph","created_at":"2026-05-18T04:38:15Z","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 imaging and spectroscopic observations with HST (WFPC2, ACS/HRC and STIS), VLT (FORS2) and Keck (HIRES) of the dM8 ultra-cool dwarf DENIS-P J185950.9-370632, located in the R-CrA region. The presence of lithium absorption at 670.8 nm and the strong Halpha emission indicate a young age and a sub-stellar mass. Our diffraction-limited images resolve a companion at the separation limit of HST/ACS (~0.06\"). The 2.1 mJy flux in the LW2 filter (5.0-8.5 microns) of the Infrared Space Observatory (see 1999A&A...350..883) likely corresponds to an infrared excess, suggesting the presence of ci","authors_text":"E.L. Martin, F. Allard, H. Bouy, I. Baraffe, R. Demarco, T. Forveille, W. Brandner, X. Delfosse","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2004-04-29T14:08:57Z","title":"A young binary Brown Dwarf in the R-CrA star formation region"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0404576","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:ecbcea520d896e54cc4b25822a65f3a8305109ac26abf12f686ae4310059a325","target":"record","created_at":"2026-05-18T04:38:15Z","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":"7ee5f120941ab41f5a7e81823fdcd46e62e37a409129fe7c4908016c74a5b166","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-04-29T14:08:57Z","title_canon_sha256":"a5b668c521e0e978a6270118e0a879753d495eb6b96f97a10edc21acbdf39eb7"},"schema_version":"1.0","source":{"id":"astro-ph/0404576","kind":"arxiv","version":1}},"canonical_sha256":"e47edf4399b63318c6ad31943eee4d61523d53e7d520b3685a9201da2b061627","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e47edf4399b63318c6ad31943eee4d61523d53e7d520b3685a9201da2b061627","first_computed_at":"2026-05-18T04:38:15.919520Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:38:15.919520Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Cx+JOgOHYtj9eVpJqKv13Qpkd1THqH+rTAj15NDW1juGyCXzCtgzxzJuyjFTmZsmc260VtPPQWRAgSmveHvqDw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:38:15.920044Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0404576","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ecbcea520d896e54cc4b25822a65f3a8305109ac26abf12f686ae4310059a325","sha256:47a703664c720ecdca93faed508c3e3d9e5439d0247300be3a6bfb03d582a1ee"],"state_sha256":"a5a656256a9b583457b67b8e7e5733e3b4cc64493ee0ed6595e60bf68d681110"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HG3roUnC/HVHksbwPEOZ/xKowSmAmAfn+rCeOYoXkAYUT1KSdy6I7L8zZtA1FZq+wAg2VaiEV+vW8b+fO8IqBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T21:41:00.825850Z","bundle_sha256":"98c529ece169c89b135b090ac4b9d1a6fadb011b58e3e459cbe298f92bb3eb66"}}