{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:NU5WM6UJ7YMK4PAQMBX7OQMIPL","short_pith_number":"pith:NU5WM6UJ","canonical_record":{"source":{"id":"astro-ph/0102456","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-02-27T01:15:37Z","cross_cats_sorted":[],"title_canon_sha256":"7d7bab3abcad7a9969483f11494f8f077b80936abc1b53bff810310f6d9f8b31","abstract_canon_sha256":"651c29c2d2190b6137f598d942d4d6e3c7fc029223a1dad5fc4d6ee4c92a9356"},"schema_version":"1.0"},"canonical_sha256":"6d3b667a89fe18ae3c10606ff741887ac34c02dbe57ef271f383e4b323be157e","source":{"kind":"arxiv","id":"astro-ph/0102456","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0102456","created_at":"2026-07-04T15:22:56Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0102456v1","created_at":"2026-07-04T15:22:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0102456","created_at":"2026-07-04T15:22:56Z"},{"alias_kind":"pith_short_12","alias_value":"NU5WM6UJ7YMK","created_at":"2026-07-04T15:22:56Z"},{"alias_kind":"pith_short_16","alias_value":"NU5WM6UJ7YMK4PAQ","created_at":"2026-07-04T15:22:56Z"},{"alias_kind":"pith_short_8","alias_value":"NU5WM6UJ","created_at":"2026-07-04T15:22:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:NU5WM6UJ7YMK4PAQMBX7OQMIPL","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0102456","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-02-27T01:15:37Z","cross_cats_sorted":[],"title_canon_sha256":"7d7bab3abcad7a9969483f11494f8f077b80936abc1b53bff810310f6d9f8b31","abstract_canon_sha256":"651c29c2d2190b6137f598d942d4d6e3c7fc029223a1dad5fc4d6ee4c92a9356"},"schema_version":"1.0"},"canonical_sha256":"6d3b667a89fe18ae3c10606ff741887ac34c02dbe57ef271f383e4b323be157e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:22:56.103337Z","signature_b64":"cKw67xCR3oopxb2xvH8WT87gjTtCnvJsyEg5E6Zv4DHtYW6sUOBkFc06T6jM/BWnkph3HC1JmYWJRVZ+Lpy0Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6d3b667a89fe18ae3c10606ff741887ac34c02dbe57ef271f383e4b323be157e","last_reissued_at":"2026-07-04T15:22:56.102971Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:22:56.102971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0102456","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":"2026-07-04T15:22:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UlhMh6mKdAv85rnzvnL2ck/AVAmNvKDQwhlCTcz/i2XVO5QUHVlwvK7L7/tTMs9BT9b1PNs5lsCyoZsU5db+CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T08:33:16.537918Z"},"content_sha256":"9319db354cd6759a67e81683cf94c4a4d507995a453d733754da1ddc0bd9e4ca","schema_version":"1.0","event_id":"sha256:9319db354cd6759a67e81683cf94c4a4d507995a453d733754da1ddc0bd9e4ca"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:NU5WM6UJ7YMK4PAQMBX7OQMIPL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Rest Frame Optical Spectra of Lyman Break Galaxies: Star Formation, Extinction, Abundances, and Kinematics","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Cambridge) Alice E. Shapley (Palomar Observatory) Charles C. Steidel (Palomar Observatory) Jean-Gabriel Cuby (European Southern Observatory) Mark Dickinson (Space Telescope Science Institute) Alan F.M. Moorwood (European Southern Observatory) Kurt L. Adelberger (Harvard-Smithsonian Center for Astrophysics) Mauro Giavalisco (Space Telescope Science Institute), Max Pettini (Institute of Astronomy","submitted_at":"2001-02-27T01:15:37Z","abstract_excerpt":"We present the first results of a spectroscopic survey of Lyman break galaxies in the near-infrared aimed at detecting the emission lines of [O II], [O III], and Hbeta from the H II regions of star forming galaxies at z = 3.\n  From observations of 19 objects with the Keck and VLT telescopes, we reach the following main conclusions. Contrary to expectations, the star formation rates deduced from the Hbeta luminosity are on average no larger than those implied by the stellar continuum at 1500 A; presumably any differential extinction between rest-frame optical and UV is small compared with the r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0102456","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/0102456/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":"2026-07-04T15:22:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KAs9QQ4Kj9NDNsIUkduasSFGnC9O67R05LWQ2dlDz5Zl7IaoIYGUn2BWgN4aXcbo6kQ0y8yiACohSn2ExxqHCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T08:33:16.538473Z"},"content_sha256":"99ddc4f2b9cca8ef4c971695b4d0ce62e71cb4658323f87ecc07a93ea25fc5f3","schema_version":"1.0","event_id":"sha256:99ddc4f2b9cca8ef4c971695b4d0ce62e71cb4658323f87ecc07a93ea25fc5f3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NU5WM6UJ7YMK4PAQMBX7OQMIPL/bundle.json","state_url":"https://pith.science/pith/NU5WM6UJ7YMK4PAQMBX7OQMIPL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NU5WM6UJ7YMK4PAQMBX7OQMIPL/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":"2026-08-03T08:33:16Z","links":{"resolver":"https://pith.science/pith/NU5WM6UJ7YMK4PAQMBX7OQMIPL","bundle":"https://pith.science/pith/NU5WM6UJ7YMK4PAQMBX7OQMIPL/bundle.json","state":"https://pith.science/pith/NU5WM6UJ7YMK4PAQMBX7OQMIPL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NU5WM6UJ7YMK4PAQMBX7OQMIPL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:NU5WM6UJ7YMK4PAQMBX7OQMIPL","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":"651c29c2d2190b6137f598d942d4d6e3c7fc029223a1dad5fc4d6ee4c92a9356","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-02-27T01:15:37Z","title_canon_sha256":"7d7bab3abcad7a9969483f11494f8f077b80936abc1b53bff810310f6d9f8b31"},"schema_version":"1.0","source":{"id":"astro-ph/0102456","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0102456","created_at":"2026-07-04T15:22:56Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0102456v1","created_at":"2026-07-04T15:22:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0102456","created_at":"2026-07-04T15:22:56Z"},{"alias_kind":"pith_short_12","alias_value":"NU5WM6UJ7YMK","created_at":"2026-07-04T15:22:56Z"},{"alias_kind":"pith_short_16","alias_value":"NU5WM6UJ7YMK4PAQ","created_at":"2026-07-04T15:22:56Z"},{"alias_kind":"pith_short_8","alias_value":"NU5WM6UJ","created_at":"2026-07-04T15:22:56Z"}],"graph_snapshots":[{"event_id":"sha256:99ddc4f2b9cca8ef4c971695b4d0ce62e71cb4658323f87ecc07a93ea25fc5f3","target":"graph","created_at":"2026-07-04T15:22:56Z","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/0102456/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the first results of a spectroscopic survey of Lyman break galaxies in the near-infrared aimed at detecting the emission lines of [O II], [O III], and Hbeta from the H II regions of star forming galaxies at z = 3.\n  From observations of 19 objects with the Keck and VLT telescopes, we reach the following main conclusions. Contrary to expectations, the star formation rates deduced from the Hbeta luminosity are on average no larger than those implied by the stellar continuum at 1500 A; presumably any differential extinction between rest-frame optical and UV is small compared with the r","authors_text":"Cambridge) Alice E. Shapley (Palomar Observatory) Charles C. Steidel (Palomar Observatory) Jean-Gabriel Cuby (European Southern Observatory) Mark Dickinson (Space Telescope Science Institute) Alan F.M. Moorwood (European Southern Observatory) Kurt L. Adelberger (Harvard-Smithsonian Center for Astrophysics) Mauro Giavalisco (Space Telescope Science Institute), Max Pettini (Institute of Astronomy","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2001-02-27T01:15:37Z","title":"The Rest Frame Optical Spectra of Lyman Break Galaxies: Star Formation, Extinction, Abundances, and Kinematics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0102456","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":"sha256:9319db354cd6759a67e81683cf94c4a4d507995a453d733754da1ddc0bd9e4ca","target":"record","created_at":"2026-07-04T15:22:56Z","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":"651c29c2d2190b6137f598d942d4d6e3c7fc029223a1dad5fc4d6ee4c92a9356","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-02-27T01:15:37Z","title_canon_sha256":"7d7bab3abcad7a9969483f11494f8f077b80936abc1b53bff810310f6d9f8b31"},"schema_version":"1.0","source":{"id":"astro-ph/0102456","kind":"arxiv","version":1}},"canonical_sha256":"6d3b667a89fe18ae3c10606ff741887ac34c02dbe57ef271f383e4b323be157e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6d3b667a89fe18ae3c10606ff741887ac34c02dbe57ef271f383e4b323be157e","first_computed_at":"2026-07-04T15:22:56.102971Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:22:56.102971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cKw67xCR3oopxb2xvH8WT87gjTtCnvJsyEg5E6Zv4DHtYW6sUOBkFc06T6jM/BWnkph3HC1JmYWJRVZ+Lpy0Bw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:22:56.103337Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0102456","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9319db354cd6759a67e81683cf94c4a4d507995a453d733754da1ddc0bd9e4ca","sha256:99ddc4f2b9cca8ef4c971695b4d0ce62e71cb4658323f87ecc07a93ea25fc5f3"],"state_sha256":"0f5f5a13347e81b662abb8acdd68af6a0abd39fa4461a4af2756fac4d4357a85"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oPB521StA96fu9UnQXcbmKPVAmszNP96vlnLSBKbLn8aBYV24D9u37sXOoHt9bXU5CdnBrZU2tWaFGf6UlGJDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T08:33:16.545646Z","bundle_sha256":"95570494318cf038350caf0c66edf361de43a16fd1b698082be6f58027fc51fe"}}