{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:IR64B2QFRZURS3VLUKHIM34IA6","short_pith_number":"pith:IR64B2QF","canonical_record":{"source":{"id":"1603.05479","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-03-17T13:36:26Z","cross_cats_sorted":[],"title_canon_sha256":"66deda69763b4d593aeb3f63388df7882ac471b582be74eefd4922db7d7ccf54","abstract_canon_sha256":"c60cc53f017a35fa311dcc4862cb0ba770677bd5a38c31ff83a7bcc00d73dd80"},"schema_version":"1.0"},"canonical_sha256":"447dc0ea058e69196eaba28e866f88078d14447f77851e8382775bdfc7fcc946","source":{"kind":"arxiv","id":"1603.05479","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.05479","created_at":"2026-05-18T01:15:41Z"},{"alias_kind":"arxiv_version","alias_value":"1603.05479v1","created_at":"2026-05-18T01:15:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.05479","created_at":"2026-05-18T01:15:41Z"},{"alias_kind":"pith_short_12","alias_value":"IR64B2QFRZUR","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"IR64B2QFRZURS3VL","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"IR64B2QF","created_at":"2026-05-18T12:30:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:IR64B2QFRZURS3VLUKHIM34IA6","target":"record","payload":{"canonical_record":{"source":{"id":"1603.05479","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-03-17T13:36:26Z","cross_cats_sorted":[],"title_canon_sha256":"66deda69763b4d593aeb3f63388df7882ac471b582be74eefd4922db7d7ccf54","abstract_canon_sha256":"c60cc53f017a35fa311dcc4862cb0ba770677bd5a38c31ff83a7bcc00d73dd80"},"schema_version":"1.0"},"canonical_sha256":"447dc0ea058e69196eaba28e866f88078d14447f77851e8382775bdfc7fcc946","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:15:41.621900Z","signature_b64":"Ax+ObZ24d1BXmoIk1TlLmnD2zeVcc1fSHXLMFcNYu2h99jFN5/d0p64sg9g/FyoPtVAqOXvQkq2sxtaRYzABAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"447dc0ea058e69196eaba28e866f88078d14447f77851e8382775bdfc7fcc946","last_reissued_at":"2026-05-18T01:15:41.621181Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:15:41.621181Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1603.05479","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":"2026-05-18T01:15:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FLs41JmLx90RqtVwmOY7zS/itib1QJU1fNLKwVo0XBpNSGMpSYN+5wG8FDETuy13uRlHspDABTl3cd63CYfpCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T22:18:41.185009Z"},"content_sha256":"9d59a614d0433963af85619965b2f96f5efefa27f00ac12fdef2b267d5a1fead","schema_version":"1.0","event_id":"sha256:9d59a614d0433963af85619965b2f96f5efefa27f00ac12fdef2b267d5a1fead"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:IR64B2QFRZURS3VLUKHIM34IA6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The VLT LEGA-C Spectroscopic Survey: The Physics of Galaxies at a Lookback Time of 7 Gyr","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Gallazzi, A. Muzzin, A. van der Wel, C. Pacifici, C. Wolf, D. Sobral, E.F. Bell, G. Brammer, H.-W. Rix, I. Labbe, J.C. Munoz-Mateos, J. van de Sande, K. Noeske, M. Franx, M.V. Maseda, P. Chauke, P.G. van Dokkum, R. Bezanson, S. Charlot, V. Wild","submitted_at":"2016-03-17T13:36:26Z","abstract_excerpt":"The Large Early Galaxy Census (LEGA-C) is a Public Spectroscopic Survey of $\\sim3200$ $K$-band selected galaxies at redshifts $z=0.6-1.0$ with stellar masses M_star > 1e10M_sun, conducted with VIMOS on ESO's Very Large Telescope. The survey is embedded in the COSMOS field ($R.A. = 10h00$; $Dec.=+2\\deg$). The 20-hour long integrations produce high-$S/N$ continuum spectra that reveal ages, metallicities and velocity dispersions of the stellar populations. LEGA-C's unique combination of sample size and depth will enable us for the first time to map the stellar content at large look-back time, acr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.05479","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":"2026-05-18T01:15:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"erqJlpXW8+ogR777p79hGKRXAgzXyeuq4dqmkNTTcdFML0vPXtJahBR7mn6fr4g+mpKnbPoDtsfduxigen9VBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T22:18:41.185671Z"},"content_sha256":"d5b95daa5768829cae5052eda87f972d3769829028818ba04aa219574b8afcef","schema_version":"1.0","event_id":"sha256:d5b95daa5768829cae5052eda87f972d3769829028818ba04aa219574b8afcef"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IR64B2QFRZURS3VLUKHIM34IA6/bundle.json","state_url":"https://pith.science/pith/IR64B2QFRZURS3VLUKHIM34IA6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IR64B2QFRZURS3VLUKHIM34IA6/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":"2026-05-22T22:18:41Z","links":{"resolver":"https://pith.science/pith/IR64B2QFRZURS3VLUKHIM34IA6","bundle":"https://pith.science/pith/IR64B2QFRZURS3VLUKHIM34IA6/bundle.json","state":"https://pith.science/pith/IR64B2QFRZURS3VLUKHIM34IA6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IR64B2QFRZURS3VLUKHIM34IA6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:IR64B2QFRZURS3VLUKHIM34IA6","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":"c60cc53f017a35fa311dcc4862cb0ba770677bd5a38c31ff83a7bcc00d73dd80","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-03-17T13:36:26Z","title_canon_sha256":"66deda69763b4d593aeb3f63388df7882ac471b582be74eefd4922db7d7ccf54"},"schema_version":"1.0","source":{"id":"1603.05479","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.05479","created_at":"2026-05-18T01:15:41Z"},{"alias_kind":"arxiv_version","alias_value":"1603.05479v1","created_at":"2026-05-18T01:15:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.05479","created_at":"2026-05-18T01:15:41Z"},{"alias_kind":"pith_short_12","alias_value":"IR64B2QFRZUR","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"IR64B2QFRZURS3VL","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"IR64B2QF","created_at":"2026-05-18T12:30:22Z"}],"graph_snapshots":[{"event_id":"sha256:d5b95daa5768829cae5052eda87f972d3769829028818ba04aa219574b8afcef","target":"graph","created_at":"2026-05-18T01:15:41Z","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":"The Large Early Galaxy Census (LEGA-C) is a Public Spectroscopic Survey of $\\sim3200$ $K$-band selected galaxies at redshifts $z=0.6-1.0$ with stellar masses M_star > 1e10M_sun, conducted with VIMOS on ESO's Very Large Telescope. The survey is embedded in the COSMOS field ($R.A. = 10h00$; $Dec.=+2\\deg$). The 20-hour long integrations produce high-$S/N$ continuum spectra that reveal ages, metallicities and velocity dispersions of the stellar populations. LEGA-C's unique combination of sample size and depth will enable us for the first time to map the stellar content at large look-back time, acr","authors_text":"A. Gallazzi, A. Muzzin, A. van der Wel, C. Pacifici, C. Wolf, D. Sobral, E.F. Bell, G. Brammer, H.-W. Rix, I. Labbe, J.C. Munoz-Mateos, J. van de Sande, K. Noeske, M. Franx, M.V. Maseda, P. Chauke, P.G. van Dokkum, R. Bezanson, S. Charlot, V. Wild","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-03-17T13:36:26Z","title":"The VLT LEGA-C Spectroscopic Survey: The Physics of Galaxies at a Lookback Time of 7 Gyr"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.05479","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":"sha256:9d59a614d0433963af85619965b2f96f5efefa27f00ac12fdef2b267d5a1fead","target":"record","created_at":"2026-05-18T01:15:41Z","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":"c60cc53f017a35fa311dcc4862cb0ba770677bd5a38c31ff83a7bcc00d73dd80","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-03-17T13:36:26Z","title_canon_sha256":"66deda69763b4d593aeb3f63388df7882ac471b582be74eefd4922db7d7ccf54"},"schema_version":"1.0","source":{"id":"1603.05479","kind":"arxiv","version":1}},"canonical_sha256":"447dc0ea058e69196eaba28e866f88078d14447f77851e8382775bdfc7fcc946","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"447dc0ea058e69196eaba28e866f88078d14447f77851e8382775bdfc7fcc946","first_computed_at":"2026-05-18T01:15:41.621181Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:15:41.621181Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ax+ObZ24d1BXmoIk1TlLmnD2zeVcc1fSHXLMFcNYu2h99jFN5/d0p64sg9g/FyoPtVAqOXvQkq2sxtaRYzABAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:15:41.621900Z","signed_message":"canonical_sha256_bytes"},"source_id":"1603.05479","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9d59a614d0433963af85619965b2f96f5efefa27f00ac12fdef2b267d5a1fead","sha256:d5b95daa5768829cae5052eda87f972d3769829028818ba04aa219574b8afcef"],"state_sha256":"abac20f8f79c6be234e70bb33b6a283efb2dd866fe115c286d7aeb2218703c78"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"acBuaBDwNkIx8mJk7gIowc4NOJ7Oq5uyqt0dxmtGz95WXfmWTbHxcNF5U0xWjyw2XkU5tw7IP6rmT6R25CHqBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-22T22:18:41.189490Z","bundle_sha256":"77b70f174c6f5b56cb8a269845f1f4844c4e216d1fc426d784bf035e30916d6d"}}