{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:BSWC5JOH3EDZ4G6IBC6DD6TW6A","short_pith_number":"pith:BSWC5JOH","canonical_record":{"source":{"id":"astro-ph/0001194","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-01-11T20:18:08Z","cross_cats_sorted":[],"title_canon_sha256":"fdea32b9a61a3bf601cf671b5fc3d154e2c8cbb468e3a14de244c2497cf000ac","abstract_canon_sha256":"697a9e35de7849a5e8fc5ab767e85953f7bc1b71a1a59895a2785a3ed55bd3d7"},"schema_version":"1.0"},"canonical_sha256":"0cac2ea5c7d9079e1bc808bc31fa76f019d615ee94acdae282430183957b7e38","source":{"kind":"arxiv","id":"astro-ph/0001194","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0001194","created_at":"2026-07-04T17:20:29Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0001194v1","created_at":"2026-07-04T17:20:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0001194","created_at":"2026-07-04T17:20:29Z"},{"alias_kind":"pith_short_12","alias_value":"BSWC5JOH3EDZ","created_at":"2026-07-04T17:20:29Z"},{"alias_kind":"pith_short_16","alias_value":"BSWC5JOH3EDZ4G6I","created_at":"2026-07-04T17:20:29Z"},{"alias_kind":"pith_short_8","alias_value":"BSWC5JOH","created_at":"2026-07-04T17:20:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:BSWC5JOH3EDZ4G6IBC6DD6TW6A","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0001194","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-01-11T20:18:08Z","cross_cats_sorted":[],"title_canon_sha256":"fdea32b9a61a3bf601cf671b5fc3d154e2c8cbb468e3a14de244c2497cf000ac","abstract_canon_sha256":"697a9e35de7849a5e8fc5ab767e85953f7bc1b71a1a59895a2785a3ed55bd3d7"},"schema_version":"1.0"},"canonical_sha256":"0cac2ea5c7d9079e1bc808bc31fa76f019d615ee94acdae282430183957b7e38","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:20:29.305118Z","signature_b64":"cmahI1ILvcpTDV2FHUv4DIJB7kVyi2iIYbg0fzh5QtXXhRhFKE9LyoAYx5+Tk2Jc4cpTeimZ8ZZLuRaUQ6wxDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0cac2ea5c7d9079e1bc808bc31fa76f019d615ee94acdae282430183957b7e38","last_reissued_at":"2026-07-04T17:20:29.304726Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:20:29.304726Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0001194","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":"2026-07-04T17:20:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1GU7JR3lCewszG1nsMIe9kG5m6gz+vSi2xZtBq5CjgVL2xoKd4kXf2avX/KxspjD+qbeT1PiTgOOq+sVdauYCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T14:37:01.519038Z"},"content_sha256":"63c23fceceefeca082934395b09c00dc14878e6beb0044d47239991ea4f7b393","schema_version":"1.0","event_id":"sha256:63c23fceceefeca082934395b09c00dc14878e6beb0044d47239991ea4f7b393"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:BSWC5JOH3EDZ4G6IBC6DD6TW6A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Discovery of a Brown Dwarf Companion to Gliese 570ABC: A 2MASS T Dwarf Significantly Cooler than Gliese 229B","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A.J.Burgasser, C.A. Beichman, C.C. Dahn, D.G. Monet, G. Kopan, H. McCallon, I.N. Reid, J.D. Kirkpatrick, J.E. Gizis, J. Liebert, M.E. Brown, M.F. Skrutskie, R.M. Cutri","submitted_at":"2000-01-11T20:18:08Z","abstract_excerpt":"We report the discovery of a widely separated (258$\\farcs3\\pm0\\farcs$4) T dwarf companion to the Gl 570ABC system. This new component, Gl 570D, was initially identified from the Two Micron All Sky Survey (2MASS). Its near-infrared spectrum shows the 1.6 and 2.2 $\\micron$ CH$_4$ absorption bands characteristic of T dwarfs, while its common proper motion with the Gl 570ABC system confirms companionship. Gl 570D (M$_J$ = 16.47$\\pm$0.07) is nearly a full magnitude dimmer than the only other known T dwarf companion, Gl 229B, and estimates of L = (2.8$\\pm$0.3)x10$^{-6}$ L$_{\\sun}$ and T$_{eff}$ = 75"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0001194","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/0001194/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":"2026-07-04T17:20:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EnqQspKbpgdIvMJFsLFJmqVHTjPnwOm1LX0xx/2W/Wo66Go/RTFUA8uLKA7VlfbLrrhC3gT6QCkMp9/OpZV6Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T14:37:01.519581Z"},"content_sha256":"7c5ab65482b711f0c5cf6be5048d99f5fcb77ad86fae3890e0206f20d3ec698c","schema_version":"1.0","event_id":"sha256:7c5ab65482b711f0c5cf6be5048d99f5fcb77ad86fae3890e0206f20d3ec698c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BSWC5JOH3EDZ4G6IBC6DD6TW6A/bundle.json","state_url":"https://pith.science/pith/BSWC5JOH3EDZ4G6IBC6DD6TW6A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BSWC5JOH3EDZ4G6IBC6DD6TW6A/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":"2026-08-22T14:37:01Z","links":{"resolver":"https://pith.science/pith/BSWC5JOH3EDZ4G6IBC6DD6TW6A","bundle":"https://pith.science/pith/BSWC5JOH3EDZ4G6IBC6DD6TW6A/bundle.json","state":"https://pith.science/pith/BSWC5JOH3EDZ4G6IBC6DD6TW6A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BSWC5JOH3EDZ4G6IBC6DD6TW6A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:BSWC5JOH3EDZ4G6IBC6DD6TW6A","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":"697a9e35de7849a5e8fc5ab767e85953f7bc1b71a1a59895a2785a3ed55bd3d7","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-01-11T20:18:08Z","title_canon_sha256":"fdea32b9a61a3bf601cf671b5fc3d154e2c8cbb468e3a14de244c2497cf000ac"},"schema_version":"1.0","source":{"id":"astro-ph/0001194","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0001194","created_at":"2026-07-04T17:20:29Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0001194v1","created_at":"2026-07-04T17:20:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0001194","created_at":"2026-07-04T17:20:29Z"},{"alias_kind":"pith_short_12","alias_value":"BSWC5JOH3EDZ","created_at":"2026-07-04T17:20:29Z"},{"alias_kind":"pith_short_16","alias_value":"BSWC5JOH3EDZ4G6I","created_at":"2026-07-04T17:20:29Z"},{"alias_kind":"pith_short_8","alias_value":"BSWC5JOH","created_at":"2026-07-04T17:20:29Z"}],"graph_snapshots":[{"event_id":"sha256:7c5ab65482b711f0c5cf6be5048d99f5fcb77ad86fae3890e0206f20d3ec698c","target":"graph","created_at":"2026-07-04T17:20:29Z","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/0001194/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the discovery of a widely separated (258$\\farcs3\\pm0\\farcs$4) T dwarf companion to the Gl 570ABC system. This new component, Gl 570D, was initially identified from the Two Micron All Sky Survey (2MASS). Its near-infrared spectrum shows the 1.6 and 2.2 $\\micron$ CH$_4$ absorption bands characteristic of T dwarfs, while its common proper motion with the Gl 570ABC system confirms companionship. Gl 570D (M$_J$ = 16.47$\\pm$0.07) is nearly a full magnitude dimmer than the only other known T dwarf companion, Gl 229B, and estimates of L = (2.8$\\pm$0.3)x10$^{-6}$ L$_{\\sun}$ and T$_{eff}$ = 75","authors_text":"A.J.Burgasser, C.A. Beichman, C.C. Dahn, D.G. Monet, G. Kopan, H. McCallon, I.N. Reid, J.D. Kirkpatrick, J.E. Gizis, J. Liebert, M.E. Brown, M.F. Skrutskie, R.M. Cutri","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-01-11T20:18:08Z","title":"Discovery of a Brown Dwarf Companion to Gliese 570ABC: A 2MASS T Dwarf Significantly Cooler than Gliese 229B"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0001194","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":"sha256:63c23fceceefeca082934395b09c00dc14878e6beb0044d47239991ea4f7b393","target":"record","created_at":"2026-07-04T17:20:29Z","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":"697a9e35de7849a5e8fc5ab767e85953f7bc1b71a1a59895a2785a3ed55bd3d7","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-01-11T20:18:08Z","title_canon_sha256":"fdea32b9a61a3bf601cf671b5fc3d154e2c8cbb468e3a14de244c2497cf000ac"},"schema_version":"1.0","source":{"id":"astro-ph/0001194","kind":"arxiv","version":1}},"canonical_sha256":"0cac2ea5c7d9079e1bc808bc31fa76f019d615ee94acdae282430183957b7e38","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0cac2ea5c7d9079e1bc808bc31fa76f019d615ee94acdae282430183957b7e38","first_computed_at":"2026-07-04T17:20:29.304726Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:20:29.304726Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cmahI1ILvcpTDV2FHUv4DIJB7kVyi2iIYbg0fzh5QtXXhRhFKE9LyoAYx5+Tk2Jc4cpTeimZ8ZZLuRaUQ6wxDg==","signature_status":"signed_v1","signed_at":"2026-07-04T17:20:29.305118Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0001194","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:63c23fceceefeca082934395b09c00dc14878e6beb0044d47239991ea4f7b393","sha256:7c5ab65482b711f0c5cf6be5048d99f5fcb77ad86fae3890e0206f20d3ec698c"],"state_sha256":"2115077fd44783d79d8f02cbf9de4a5ba258d46d7e6c9a15cc23665a197d5f86"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3F9TT5FR6H5cPXjNvmeYGIoEUsHstuwWejBn41fLJYa4uU4+zKJOwLVZhflK8d1kb/y5GgOuaF7GPh6lRjZkAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T14:37:01.525700Z","bundle_sha256":"082c829dd504c79a6b8cb1a69225f46a8554eb5cc881a2600cac21225f4d5eb5"}}