{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:3TFKRFJKNFUB2BO3IJBC7IL3M7","short_pith_number":"pith:3TFKRFJK","canonical_record":{"source":{"id":"1802.10102","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-27T19:00:03Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"7d532b10f47c541867eeb976da4dfa62d0ed65cb7d66415f4b767ff66e5d2417","abstract_canon_sha256":"24596c24c2d8d0c44769d557ce126cdd4cc2747c2acd10a73e1cdeea84cd5139"},"schema_version":"1.0"},"canonical_sha256":"dccaa8952a69681d05db42422fa17b67e054c5fe37be472c1bbf6ca614a94268","source":{"kind":"arxiv","id":"1802.10102","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.10102","created_at":"2026-05-18T00:15:55Z"},{"alias_kind":"arxiv_version","alias_value":"1802.10102v2","created_at":"2026-05-18T00:15:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.10102","created_at":"2026-05-18T00:15:55Z"},{"alias_kind":"pith_short_12","alias_value":"3TFKRFJKNFUB","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"3TFKRFJKNFUB2BO3","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"3TFKRFJK","created_at":"2026-05-18T12:32:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:3TFKRFJKNFUB2BO3IJBC7IL3M7","target":"record","payload":{"canonical_record":{"source":{"id":"1802.10102","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-27T19:00:03Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"7d532b10f47c541867eeb976da4dfa62d0ed65cb7d66415f4b767ff66e5d2417","abstract_canon_sha256":"24596c24c2d8d0c44769d557ce126cdd4cc2747c2acd10a73e1cdeea84cd5139"},"schema_version":"1.0"},"canonical_sha256":"dccaa8952a69681d05db42422fa17b67e054c5fe37be472c1bbf6ca614a94268","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:15:55.418278Z","signature_b64":"y0z7qr1nK3Jb/esqIp9FpV16gDSxdL3h9LS0uu77p+/d0Xd3Jr/HwIUZZfOHsmQqp+hF9EtCjGpjLX1qyKR2BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dccaa8952a69681d05db42422fa17b67e054c5fe37be472c1bbf6ca614a94268","last_reissued_at":"2026-05-18T00:15:55.417428Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:15:55.417428Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.10102","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:15:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3y6rHDt+PrLtRke1yu1WWC9Hyt9D5fpUyYTpQR3jx+NWJjXhM+gGrzZVGV8LY9PdYvkdcHzWgnw+W/g/PSAkAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T08:30:52.284464Z"},"content_sha256":"af1c66d4014b65fed64508c8d184c905cdf941927c6b55e90793ed0db1488966","schema_version":"1.0","event_id":"sha256:af1c66d4014b65fed64508c8d184c905cdf941927c6b55e90793ed0db1488966"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:3TFKRFJKNFUB2BO3IJBC7IL3M7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The nature of luminous Lyman-alpha emitters at z~2-3: maximal dust-poor starbursts and highly ionising AGN","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Ana Paulino-Afonso, Andra Stroe, Bahram Mobasher, Behnam Darvish, David Sobral, Huub R\\\"ottgering, Ian Smail, Iv\\'an Oteo, Jorryt Matthee, Lara Alegre, Philip N. Best","submitted_at":"2018-02-27T19:00:03Z","abstract_excerpt":"Deep narrow-band surveys have revealed a large population of faint Lyman-alpha (Lya) emitters (LAEs) in the distant Universe, but relatively little is known about the most luminous sources ($L_{Ly\\alpha}>10^{42.7}$ erg/s; $L_{Ly\\alpha}>L^*_{Ly\\alpha}$). Here we present the spectroscopic follow-up of 21 luminous LAEs at z~2-3 found with panoramic narrow-band surveys over five independent extragalactic fields (~4x10$^6$ Mpc$^{3}$ surveyed at z~2.2 and z~3.1). We use WHT/ISIS, Keck/DEIMOS and VLT/X-SHOOTER to study these sources using high ionisation UV lines. Luminous LAEs at z~2-3 have blue UV "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.10102","kind":"arxiv","version":2},"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":"2026-05-18T00:15:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xwoLEKf6oZmQ3sASKddBVqQrVnMyDQMR6uJplPLYbjGyCwBT0Me5ycXQF0Y/n4IkUf9H0jYSYr2haA66R607AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T08:30:52.285042Z"},"content_sha256":"dca9906d7ce4498fb825b44020f8710f26a61a7f3bc96976961a15621b3f4066","schema_version":"1.0","event_id":"sha256:dca9906d7ce4498fb825b44020f8710f26a61a7f3bc96976961a15621b3f4066"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3TFKRFJKNFUB2BO3IJBC7IL3M7/bundle.json","state_url":"https://pith.science/pith/3TFKRFJKNFUB2BO3IJBC7IL3M7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3TFKRFJKNFUB2BO3IJBC7IL3M7/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":"2026-05-26T08:30:52Z","links":{"resolver":"https://pith.science/pith/3TFKRFJKNFUB2BO3IJBC7IL3M7","bundle":"https://pith.science/pith/3TFKRFJKNFUB2BO3IJBC7IL3M7/bundle.json","state":"https://pith.science/pith/3TFKRFJKNFUB2BO3IJBC7IL3M7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3TFKRFJKNFUB2BO3IJBC7IL3M7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:3TFKRFJKNFUB2BO3IJBC7IL3M7","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":"24596c24c2d8d0c44769d557ce126cdd4cc2747c2acd10a73e1cdeea84cd5139","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-27T19:00:03Z","title_canon_sha256":"7d532b10f47c541867eeb976da4dfa62d0ed65cb7d66415f4b767ff66e5d2417"},"schema_version":"1.0","source":{"id":"1802.10102","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.10102","created_at":"2026-05-18T00:15:55Z"},{"alias_kind":"arxiv_version","alias_value":"1802.10102v2","created_at":"2026-05-18T00:15:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.10102","created_at":"2026-05-18T00:15:55Z"},{"alias_kind":"pith_short_12","alias_value":"3TFKRFJKNFUB","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"3TFKRFJKNFUB2BO3","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"3TFKRFJK","created_at":"2026-05-18T12:32:05Z"}],"graph_snapshots":[{"event_id":"sha256:dca9906d7ce4498fb825b44020f8710f26a61a7f3bc96976961a15621b3f4066","target":"graph","created_at":"2026-05-18T00:15:55Z","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":"Deep narrow-band surveys have revealed a large population of faint Lyman-alpha (Lya) emitters (LAEs) in the distant Universe, but relatively little is known about the most luminous sources ($L_{Ly\\alpha}>10^{42.7}$ erg/s; $L_{Ly\\alpha}>L^*_{Ly\\alpha}$). Here we present the spectroscopic follow-up of 21 luminous LAEs at z~2-3 found with panoramic narrow-band surveys over five independent extragalactic fields (~4x10$^6$ Mpc$^{3}$ surveyed at z~2.2 and z~3.1). We use WHT/ISIS, Keck/DEIMOS and VLT/X-SHOOTER to study these sources using high ionisation UV lines. Luminous LAEs at z~2-3 have blue UV ","authors_text":"Ana Paulino-Afonso, Andra Stroe, Bahram Mobasher, Behnam Darvish, David Sobral, Huub R\\\"ottgering, Ian Smail, Iv\\'an Oteo, Jorryt Matthee, Lara Alegre, Philip N. Best","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-27T19:00:03Z","title":"The nature of luminous Lyman-alpha emitters at z~2-3: maximal dust-poor starbursts and highly ionising AGN"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.10102","kind":"arxiv","version":2},"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:af1c66d4014b65fed64508c8d184c905cdf941927c6b55e90793ed0db1488966","target":"record","created_at":"2026-05-18T00:15:55Z","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":"24596c24c2d8d0c44769d557ce126cdd4cc2747c2acd10a73e1cdeea84cd5139","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-27T19:00:03Z","title_canon_sha256":"7d532b10f47c541867eeb976da4dfa62d0ed65cb7d66415f4b767ff66e5d2417"},"schema_version":"1.0","source":{"id":"1802.10102","kind":"arxiv","version":2}},"canonical_sha256":"dccaa8952a69681d05db42422fa17b67e054c5fe37be472c1bbf6ca614a94268","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dccaa8952a69681d05db42422fa17b67e054c5fe37be472c1bbf6ca614a94268","first_computed_at":"2026-05-18T00:15:55.417428Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:15:55.417428Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"y0z7qr1nK3Jb/esqIp9FpV16gDSxdL3h9LS0uu77p+/d0Xd3Jr/HwIUZZfOHsmQqp+hF9EtCjGpjLX1qyKR2BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:15:55.418278Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.10102","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:af1c66d4014b65fed64508c8d184c905cdf941927c6b55e90793ed0db1488966","sha256:dca9906d7ce4498fb825b44020f8710f26a61a7f3bc96976961a15621b3f4066"],"state_sha256":"3972632b092ce9f47b559da107d49bcbd24431d670935f4d569614b10cd4b3c4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RJAa+Q0mdTx3gZNywgm1vaDm4G/5AYi5nVkET5Gffvr3H7U5mTBx09x76kYNFAlSo7Yxj8D8mx4XDgmxC3WpAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T08:30:52.288578Z","bundle_sha256":"e299c81d8af1efd5be3c05edd017f21ca48ca0fadfca64db15e03dd018927123"}}