{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:3QYSY7H7KR6ABVUOC2F6JZU5BO","short_pith_number":"pith:3QYSY7H7","canonical_record":{"source":{"id":"1910.11877","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-10-25T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"28e67fe606ac7f7e9bf84b79f0cd8e6bc83afcf7489576527f26585f61e6105e","abstract_canon_sha256":"409717ed483f16f9a833d8f437c55788aaf706865818db4969c1a167acad8885"},"schema_version":"1.0"},"canonical_sha256":"dc312c7cff547c00d68e168be4e69d0bbadce67b71d6064ce9cb29cae7b3f87e","source":{"kind":"arxiv","id":"1910.11877","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.11877","created_at":"2026-07-05T00:41:44Z"},{"alias_kind":"arxiv_version","alias_value":"1910.11877v2","created_at":"2026-07-05T00:41:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.11877","created_at":"2026-07-05T00:41:44Z"},{"alias_kind":"pith_short_12","alias_value":"3QYSY7H7KR6A","created_at":"2026-07-05T00:41:44Z"},{"alias_kind":"pith_short_16","alias_value":"3QYSY7H7KR6ABVUO","created_at":"2026-07-05T00:41:44Z"},{"alias_kind":"pith_short_8","alias_value":"3QYSY7H7","created_at":"2026-07-05T00:41:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:3QYSY7H7KR6ABVUOC2F6JZU5BO","target":"record","payload":{"canonical_record":{"source":{"id":"1910.11877","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-10-25T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"28e67fe606ac7f7e9bf84b79f0cd8e6bc83afcf7489576527f26585f61e6105e","abstract_canon_sha256":"409717ed483f16f9a833d8f437c55788aaf706865818db4969c1a167acad8885"},"schema_version":"1.0"},"canonical_sha256":"dc312c7cff547c00d68e168be4e69d0bbadce67b71d6064ce9cb29cae7b3f87e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:41:44.566392Z","signature_b64":"oKvsk1r9W8X8jb595GI1rfq/qiNkuwSazfNkKJ7muTLfSwV5NZC0/J4J0/y1g7GC90p1SEqAtIyVQ9h7ZO/9BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dc312c7cff547c00d68e168be4e69d0bbadce67b71d6064ce9cb29cae7b3f87e","last_reissued_at":"2026-07-05T00:41:44.565946Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:41:44.565946Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1910.11877","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":"2026-07-05T00:41:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i3HjBKWOjwVJEp73fho2UwExLb9Vy6Sar+uSN5l3WjeQwsZqaULBvRMSa6U8TWetnQ1DXUwclUdyUGbE2LKQCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T01:58:09.619811Z"},"content_sha256":"2f104f15b70e163e9b0838e4c1e36655f094f9b89301c86b6fdfe8314a223a98","schema_version":"1.0","event_id":"sha256:2f104f15b70e163e9b0838e4c1e36655f094f9b89301c86b6fdfe8314a223a98"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:3QYSY7H7KR6ABVUOC2F6JZU5BO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Searching for z > 6.5 Analogs Near the Peak of Cosmic Star Formation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alice E. Shapley, Bahram Mobasher, Crystal L. Martin, Daniel P. Stark, Jacopo Chevallard, Mengtao Tang, Michael W. Topping, Xinnan Du","submitted_at":"2019-10-25T18:00:01Z","abstract_excerpt":"Strong [OIII]$\\lambda\\lambda$4959,5007+H$\\beta$ emission appears to be typical in star-forming galaxies at z > 6.5. As likely contributors to cosmic reionization, these galaxies and the physical conditions within them are of great interest. At z > 6.5, where Ly$\\alpha$ is greatly attenuated by the intergalactic medium, rest-UV metal emission lines provide an alternative measure of redshift and also constraints on the physical properties of star-forming regions and massive stars. We present the first statistical sample of rest-UV line measurements in z $\\sim$ 2 galaxies selected as analogs of t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.11877","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1910.11877/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":"2026-07-05T00:41:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UzcX009IBE+e5lbRYF2fAwF+XzpjzKUnHnua4rQA1iHqcPCS4h+VeNIZN2Olx5rduBe5uJ/rlzIRAkZLIT94BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T01:58:09.620288Z"},"content_sha256":"82c9f2715f377f6a930b5e6c913cf7208880a71bf9ea480e2914e95da4cd84fe","schema_version":"1.0","event_id":"sha256:82c9f2715f377f6a930b5e6c913cf7208880a71bf9ea480e2914e95da4cd84fe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3QYSY7H7KR6ABVUOC2F6JZU5BO/bundle.json","state_url":"https://pith.science/pith/3QYSY7H7KR6ABVUOC2F6JZU5BO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3QYSY7H7KR6ABVUOC2F6JZU5BO/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":"2026-08-06T01:58:09Z","links":{"resolver":"https://pith.science/pith/3QYSY7H7KR6ABVUOC2F6JZU5BO","bundle":"https://pith.science/pith/3QYSY7H7KR6ABVUOC2F6JZU5BO/bundle.json","state":"https://pith.science/pith/3QYSY7H7KR6ABVUOC2F6JZU5BO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3QYSY7H7KR6ABVUOC2F6JZU5BO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:3QYSY7H7KR6ABVUOC2F6JZU5BO","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":"409717ed483f16f9a833d8f437c55788aaf706865818db4969c1a167acad8885","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-10-25T18:00:01Z","title_canon_sha256":"28e67fe606ac7f7e9bf84b79f0cd8e6bc83afcf7489576527f26585f61e6105e"},"schema_version":"1.0","source":{"id":"1910.11877","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.11877","created_at":"2026-07-05T00:41:44Z"},{"alias_kind":"arxiv_version","alias_value":"1910.11877v2","created_at":"2026-07-05T00:41:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.11877","created_at":"2026-07-05T00:41:44Z"},{"alias_kind":"pith_short_12","alias_value":"3QYSY7H7KR6A","created_at":"2026-07-05T00:41:44Z"},{"alias_kind":"pith_short_16","alias_value":"3QYSY7H7KR6ABVUO","created_at":"2026-07-05T00:41:44Z"},{"alias_kind":"pith_short_8","alias_value":"3QYSY7H7","created_at":"2026-07-05T00:41:44Z"}],"graph_snapshots":[{"event_id":"sha256:82c9f2715f377f6a930b5e6c913cf7208880a71bf9ea480e2914e95da4cd84fe","target":"graph","created_at":"2026-07-05T00:41:44Z","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/1910.11877/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Strong [OIII]$\\lambda\\lambda$4959,5007+H$\\beta$ emission appears to be typical in star-forming galaxies at z > 6.5. As likely contributors to cosmic reionization, these galaxies and the physical conditions within them are of great interest. At z > 6.5, where Ly$\\alpha$ is greatly attenuated by the intergalactic medium, rest-UV metal emission lines provide an alternative measure of redshift and also constraints on the physical properties of star-forming regions and massive stars. We present the first statistical sample of rest-UV line measurements in z $\\sim$ 2 galaxies selected as analogs of t","authors_text":"Alice E. Shapley, Bahram Mobasher, Crystal L. Martin, Daniel P. Stark, Jacopo Chevallard, Mengtao Tang, Michael W. Topping, Xinnan Du","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-10-25T18:00:01Z","title":"Searching for z > 6.5 Analogs Near the Peak of Cosmic Star Formation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.11877","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":"sha256:2f104f15b70e163e9b0838e4c1e36655f094f9b89301c86b6fdfe8314a223a98","target":"record","created_at":"2026-07-05T00:41:44Z","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":"409717ed483f16f9a833d8f437c55788aaf706865818db4969c1a167acad8885","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-10-25T18:00:01Z","title_canon_sha256":"28e67fe606ac7f7e9bf84b79f0cd8e6bc83afcf7489576527f26585f61e6105e"},"schema_version":"1.0","source":{"id":"1910.11877","kind":"arxiv","version":2}},"canonical_sha256":"dc312c7cff547c00d68e168be4e69d0bbadce67b71d6064ce9cb29cae7b3f87e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dc312c7cff547c00d68e168be4e69d0bbadce67b71d6064ce9cb29cae7b3f87e","first_computed_at":"2026-07-05T00:41:44.565946Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:41:44.565946Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oKvsk1r9W8X8jb595GI1rfq/qiNkuwSazfNkKJ7muTLfSwV5NZC0/J4J0/y1g7GC90p1SEqAtIyVQ9h7ZO/9BA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:41:44.566392Z","signed_message":"canonical_sha256_bytes"},"source_id":"1910.11877","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2f104f15b70e163e9b0838e4c1e36655f094f9b89301c86b6fdfe8314a223a98","sha256:82c9f2715f377f6a930b5e6c913cf7208880a71bf9ea480e2914e95da4cd84fe"],"state_sha256":"d6cbd44ee5dbbbded66a1cbfb0a0804d71d85543168b54e5b779e84f85c1a9a7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vowt8ANE2R9hOrA58w0KFrddJYdczoqKYyAMNavRhoQNVdJLegqqGcJABcRZUnXvucv8oKtLdVqWI2A/IIncDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T01:58:09.623737Z","bundle_sha256":"7cfff795e8e37a9c336aa40062640f2b2aecff37a5748e883ee3162af7611049"}}