{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:UWEGMY7THP4ZKSCHCTGKTMUXPU","short_pith_number":"pith:UWEGMY7T","canonical_record":{"source":{"id":"2003.05859","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-03-12T15:48:58Z","cross_cats_sorted":[],"title_canon_sha256":"78baf5e431fd5f87db995c2815106688b22741c4a6fe9400692765c2ae30e213","abstract_canon_sha256":"0b97c747bc0a62c98061f296f7c3218c1802f7b044bfe3ac535373e07166ce7f"},"schema_version":"1.0"},"canonical_sha256":"a5886663f33bf995484714cca9b2977d1248e95935f5466ed91da5794d7e84f6","source":{"kind":"arxiv","id":"2003.05859","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.05859","created_at":"2026-07-05T00:50:16Z"},{"alias_kind":"arxiv_version","alias_value":"2003.05859v1","created_at":"2026-07-05T00:50:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.05859","created_at":"2026-07-05T00:50:16Z"},{"alias_kind":"pith_short_12","alias_value":"UWEGMY7THP4Z","created_at":"2026-07-05T00:50:16Z"},{"alias_kind":"pith_short_16","alias_value":"UWEGMY7THP4ZKSCH","created_at":"2026-07-05T00:50:16Z"},{"alias_kind":"pith_short_8","alias_value":"UWEGMY7T","created_at":"2026-07-05T00:50:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:UWEGMY7THP4ZKSCHCTGKTMUXPU","target":"record","payload":{"canonical_record":{"source":{"id":"2003.05859","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-03-12T15:48:58Z","cross_cats_sorted":[],"title_canon_sha256":"78baf5e431fd5f87db995c2815106688b22741c4a6fe9400692765c2ae30e213","abstract_canon_sha256":"0b97c747bc0a62c98061f296f7c3218c1802f7b044bfe3ac535373e07166ce7f"},"schema_version":"1.0"},"canonical_sha256":"a5886663f33bf995484714cca9b2977d1248e95935f5466ed91da5794d7e84f6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:50:16.610810Z","signature_b64":"ASgbjA+XTBWlGZZUWqaMqv5wg76kmgc1AF3A4vFGng3Lbr4uWTYutPbe0ZDnSG8Kl/tMy8/6u1/4mB/JpQ09DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a5886663f33bf995484714cca9b2977d1248e95935f5466ed91da5794d7e84f6","last_reissued_at":"2026-07-05T00:50:16.610372Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:50:16.610372Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2003.05859","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":"2026-07-05T00:50:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5+XBnwF3tZ7Opa7UfSWiDkxsr7Ag6x36Pmv+o3mYPjgPd1Ft6bIrptdE4mHj4A2C/U1KbsSjGjkwrJngbQwCDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-19T14:32:34.882257Z"},"content_sha256":"0d3040e44bd185a6101c6c93798bf84a00a610e709aa86488206d1db3ec58bd2","schema_version":"1.0","event_id":"sha256:0d3040e44bd185a6101c6c93798bf84a00a610e709aa86488206d1db3ec58bd2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:UWEGMY7THP4ZKSCHCTGKTMUXPU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An ionised bubble powered by a proto-cluster at z = 6.5","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Herrero, A. Manrique, A. Marin-Franch, E. Salvador Sole, J. Gallego, J.M. Mas-Hesse, J.M. Rodriguez Espinosa, K. Chanchaiworawit, R. Calvi, R. Guzman","submitted_at":"2020-03-12T15:48:58Z","abstract_excerpt":"We show herein that a proto-cluster of Ly$\\alpha$ emitting galaxies, spectroscopically confirmed at redshift 6.5, produces a remarkable number of ionising continuum photons. We start from the Ly$\\alpha$ fluxes measured in the spectra of the sources detected spectroscopically. From these fluxes we derive the ionising emissivity of continuum photons of the proto-cluster, which we compare with the ionising emissivity required to reionise the proto-cluster volume. We find that the sources in the proto-cluster are capable of ionising a large bubble, indeed larger than the volume occupied by the pro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.05859","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/2003.05859/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":"2026-07-05T00:50:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E+TyXtR1Z0r8kgPLxUpV9p0394f4TdtF0H4nLDkeyiqr/gGBGSTLKKqw7vk6sbNkQ+qNesrf0LIyyp58r0hUCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-19T14:32:34.882753Z"},"content_sha256":"41d8d92eee63f2745230dfba28519ff89c640e9b5f43ce59c57027ee4246253f","schema_version":"1.0","event_id":"sha256:41d8d92eee63f2745230dfba28519ff89c640e9b5f43ce59c57027ee4246253f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UWEGMY7THP4ZKSCHCTGKTMUXPU/bundle.json","state_url":"https://pith.science/pith/UWEGMY7THP4ZKSCHCTGKTMUXPU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UWEGMY7THP4ZKSCHCTGKTMUXPU/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":"2026-07-19T14:32:34Z","links":{"resolver":"https://pith.science/pith/UWEGMY7THP4ZKSCHCTGKTMUXPU","bundle":"https://pith.science/pith/UWEGMY7THP4ZKSCHCTGKTMUXPU/bundle.json","state":"https://pith.science/pith/UWEGMY7THP4ZKSCHCTGKTMUXPU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UWEGMY7THP4ZKSCHCTGKTMUXPU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:UWEGMY7THP4ZKSCHCTGKTMUXPU","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":"0b97c747bc0a62c98061f296f7c3218c1802f7b044bfe3ac535373e07166ce7f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-03-12T15:48:58Z","title_canon_sha256":"78baf5e431fd5f87db995c2815106688b22741c4a6fe9400692765c2ae30e213"},"schema_version":"1.0","source":{"id":"2003.05859","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.05859","created_at":"2026-07-05T00:50:16Z"},{"alias_kind":"arxiv_version","alias_value":"2003.05859v1","created_at":"2026-07-05T00:50:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.05859","created_at":"2026-07-05T00:50:16Z"},{"alias_kind":"pith_short_12","alias_value":"UWEGMY7THP4Z","created_at":"2026-07-05T00:50:16Z"},{"alias_kind":"pith_short_16","alias_value":"UWEGMY7THP4ZKSCH","created_at":"2026-07-05T00:50:16Z"},{"alias_kind":"pith_short_8","alias_value":"UWEGMY7T","created_at":"2026-07-05T00:50:16Z"}],"graph_snapshots":[{"event_id":"sha256:41d8d92eee63f2745230dfba28519ff89c640e9b5f43ce59c57027ee4246253f","target":"graph","created_at":"2026-07-05T00:50:16Z","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/2003.05859/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We show herein that a proto-cluster of Ly$\\alpha$ emitting galaxies, spectroscopically confirmed at redshift 6.5, produces a remarkable number of ionising continuum photons. We start from the Ly$\\alpha$ fluxes measured in the spectra of the sources detected spectroscopically. From these fluxes we derive the ionising emissivity of continuum photons of the proto-cluster, which we compare with the ionising emissivity required to reionise the proto-cluster volume. We find that the sources in the proto-cluster are capable of ionising a large bubble, indeed larger than the volume occupied by the pro","authors_text":"A. Herrero, A. Manrique, A. Marin-Franch, E. Salvador Sole, J. Gallego, J.M. Mas-Hesse, J.M. Rodriguez Espinosa, K. Chanchaiworawit, R. Calvi, R. Guzman","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-03-12T15:48:58Z","title":"An ionised bubble powered by a proto-cluster at z = 6.5"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.05859","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":"sha256:0d3040e44bd185a6101c6c93798bf84a00a610e709aa86488206d1db3ec58bd2","target":"record","created_at":"2026-07-05T00:50:16Z","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":"0b97c747bc0a62c98061f296f7c3218c1802f7b044bfe3ac535373e07166ce7f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-03-12T15:48:58Z","title_canon_sha256":"78baf5e431fd5f87db995c2815106688b22741c4a6fe9400692765c2ae30e213"},"schema_version":"1.0","source":{"id":"2003.05859","kind":"arxiv","version":1}},"canonical_sha256":"a5886663f33bf995484714cca9b2977d1248e95935f5466ed91da5794d7e84f6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a5886663f33bf995484714cca9b2977d1248e95935f5466ed91da5794d7e84f6","first_computed_at":"2026-07-05T00:50:16.610372Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:50:16.610372Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ASgbjA+XTBWlGZZUWqaMqv5wg76kmgc1AF3A4vFGng3Lbr4uWTYutPbe0ZDnSG8Kl/tMy8/6u1/4mB/JpQ09DA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:50:16.610810Z","signed_message":"canonical_sha256_bytes"},"source_id":"2003.05859","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0d3040e44bd185a6101c6c93798bf84a00a610e709aa86488206d1db3ec58bd2","sha256:41d8d92eee63f2745230dfba28519ff89c640e9b5f43ce59c57027ee4246253f"],"state_sha256":"309bfb1d16c25f148deac4e9964c8cccca591ecab8964f77777b062560f7aedd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7um3f7bpwCzsh6LsIDxL7ACyxxXqwr7kBZ0AtrzJ1jo7F6SqUinXZZ1gXU0Mq7rs1LYYsRAvQWncK1loM+JEAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-19T14:32:34.885206Z","bundle_sha256":"68e61125c400912814a2ce2eae3bd219f104c6fad96d2a09d3951a0b803ec7da"}}