{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:TR72JJGRQZ26OS6N5R6F4HIV7N","short_pith_number":"pith:TR72JJGR","canonical_record":{"source":{"id":"2603.01487","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-03-02T05:52:02Z","cross_cats_sorted":[],"title_canon_sha256":"c9ed22a4d14a6441c4d7f39c9bde9add2c3f6f083993d814c57c3eb226622028","abstract_canon_sha256":"4fa0ee928e5edfb281f8704500e322f4a2a214c3c92cf78953993ef55fae81f3"},"schema_version":"1.0"},"canonical_sha256":"9c7fa4a4d18675e74bcdec7c5e1d15fb6a0cf1ebe6e42b07a3885b706e988d79","source":{"kind":"arxiv","id":"2603.01487","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.01487","created_at":"2026-06-02T03:04:39Z"},{"alias_kind":"arxiv_version","alias_value":"2603.01487v3","created_at":"2026-06-02T03:04:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.01487","created_at":"2026-06-02T03:04:39Z"},{"alias_kind":"pith_short_12","alias_value":"TR72JJGRQZ26","created_at":"2026-06-02T03:04:39Z"},{"alias_kind":"pith_short_16","alias_value":"TR72JJGRQZ26OS6N","created_at":"2026-06-02T03:04:39Z"},{"alias_kind":"pith_short_8","alias_value":"TR72JJGR","created_at":"2026-06-02T03:04:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:TR72JJGRQZ26OS6N5R6F4HIV7N","target":"record","payload":{"canonical_record":{"source":{"id":"2603.01487","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-03-02T05:52:02Z","cross_cats_sorted":[],"title_canon_sha256":"c9ed22a4d14a6441c4d7f39c9bde9add2c3f6f083993d814c57c3eb226622028","abstract_canon_sha256":"4fa0ee928e5edfb281f8704500e322f4a2a214c3c92cf78953993ef55fae81f3"},"schema_version":"1.0"},"canonical_sha256":"9c7fa4a4d18675e74bcdec7c5e1d15fb6a0cf1ebe6e42b07a3885b706e988d79","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-02T03:04:39.660054Z","signature_b64":"95eF9A051KNLMtfCtL1xa3gIr0qMhs+fAubJb/d4YnvA6bbH5kQlGK7jquonc4g1MIxPAEUViLdV+xw4s1BJDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9c7fa4a4d18675e74bcdec7c5e1d15fb6a0cf1ebe6e42b07a3885b706e988d79","last_reissued_at":"2026-06-02T03:04:39.659546Z","signature_status":"signed_v1","first_computed_at":"2026-06-02T03:04:39.659546Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2603.01487","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-02T03:04:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tYKmchBY8F/lK17CktWf6t96/oFnJ/7KP5hyDXo7swBRSFogfIsyBAvmtLxsu2RhP1zEQIKTcKPJAd40xPicBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T04:48:53.074784Z"},"content_sha256":"7874b94ef12ad79e5b2a114756f147af746d8e15567dd2254abb6e9e242b55b1","schema_version":"1.0","event_id":"sha256:7874b94ef12ad79e5b2a114756f147af746d8e15567dd2254abb6e9e242b55b1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:TR72JJGRQZ26OS6N5R6F4HIV7N","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"LCEz4-M1: A Lyman Continuum Emitter Candidate at z = 4.444 in the MUSE Hubble Ultra Deep Field","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Chunyan Jiang, Fang-Ting Yuan, Fuyan Bian, Ruqiu Lin, Shuairu Zhu, Xiaer Zhang, Yucheng Guo, Zhen-Ya Zheng","submitted_at":"2026-03-02T05:52:02Z","abstract_excerpt":"High-redshift Lyman continuum emitters (LCEs) are crucial for understanding how galaxies ionize the neutral hydrogen in the epoch of reionization. However, detected LCEs at $z>4$ are quite rare. Here we report an LCE candidate at $z = 4.444$, dubbed LCEz4-M1, which is one of the highest-redshift LCE candidates currently known. The redshift is determined from the Ly$\\alpha$ emission line detected in the VLT/MUSE spectrum. The Lyman continuum (LyC) signal is detected independently in the \\emph{Hubble Space Telescope} (HST) F435W image and the VLT/MUSE spectrum at significances of $\\simeq3.7~\\sig"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.01487","kind":"arxiv","version":3},"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/2603.01487/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":"2026-06-02T03:04:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DNO8G2xl9c9zJyxQl9KGYgmJW7OttW9rldjniXEacI3eWaZ/EN4fTyn85woEgkwQX88uGYKXXyKTJgDjltP6Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T04:48:53.075158Z"},"content_sha256":"569c87fd42e780770fc673da4d9c9349c390579e4b44e61c4d92fb8bf3393db8","schema_version":"1.0","event_id":"sha256:569c87fd42e780770fc673da4d9c9349c390579e4b44e61c4d92fb8bf3393db8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TR72JJGRQZ26OS6N5R6F4HIV7N/bundle.json","state_url":"https://pith.science/pith/TR72JJGRQZ26OS6N5R6F4HIV7N/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TR72JJGRQZ26OS6N5R6F4HIV7N/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":"2026-06-27T04:48:53Z","links":{"resolver":"https://pith.science/pith/TR72JJGRQZ26OS6N5R6F4HIV7N","bundle":"https://pith.science/pith/TR72JJGRQZ26OS6N5R6F4HIV7N/bundle.json","state":"https://pith.science/pith/TR72JJGRQZ26OS6N5R6F4HIV7N/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TR72JJGRQZ26OS6N5R6F4HIV7N/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:TR72JJGRQZ26OS6N5R6F4HIV7N","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":"4fa0ee928e5edfb281f8704500e322f4a2a214c3c92cf78953993ef55fae81f3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-03-02T05:52:02Z","title_canon_sha256":"c9ed22a4d14a6441c4d7f39c9bde9add2c3f6f083993d814c57c3eb226622028"},"schema_version":"1.0","source":{"id":"2603.01487","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.01487","created_at":"2026-06-02T03:04:39Z"},{"alias_kind":"arxiv_version","alias_value":"2603.01487v3","created_at":"2026-06-02T03:04:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.01487","created_at":"2026-06-02T03:04:39Z"},{"alias_kind":"pith_short_12","alias_value":"TR72JJGRQZ26","created_at":"2026-06-02T03:04:39Z"},{"alias_kind":"pith_short_16","alias_value":"TR72JJGRQZ26OS6N","created_at":"2026-06-02T03:04:39Z"},{"alias_kind":"pith_short_8","alias_value":"TR72JJGR","created_at":"2026-06-02T03:04:39Z"}],"graph_snapshots":[{"event_id":"sha256:569c87fd42e780770fc673da4d9c9349c390579e4b44e61c4d92fb8bf3393db8","target":"graph","created_at":"2026-06-02T03:04:39Z","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/2603.01487/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"High-redshift Lyman continuum emitters (LCEs) are crucial for understanding how galaxies ionize the neutral hydrogen in the epoch of reionization. However, detected LCEs at $z>4$ are quite rare. Here we report an LCE candidate at $z = 4.444$, dubbed LCEz4-M1, which is one of the highest-redshift LCE candidates currently known. The redshift is determined from the Ly$\\alpha$ emission line detected in the VLT/MUSE spectrum. The Lyman continuum (LyC) signal is detected independently in the \\emph{Hubble Space Telescope} (HST) F435W image and the VLT/MUSE spectrum at significances of $\\simeq3.7~\\sig","authors_text":"Chunyan Jiang, Fang-Ting Yuan, Fuyan Bian, Ruqiu Lin, Shuairu Zhu, Xiaer Zhang, Yucheng Guo, Zhen-Ya Zheng","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-03-02T05:52:02Z","title":"LCEz4-M1: A Lyman Continuum Emitter Candidate at z = 4.444 in the MUSE Hubble Ultra Deep Field"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.01487","kind":"arxiv","version":3},"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":"sha256:7874b94ef12ad79e5b2a114756f147af746d8e15567dd2254abb6e9e242b55b1","target":"record","created_at":"2026-06-02T03:04:39Z","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":"4fa0ee928e5edfb281f8704500e322f4a2a214c3c92cf78953993ef55fae81f3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-03-02T05:52:02Z","title_canon_sha256":"c9ed22a4d14a6441c4d7f39c9bde9add2c3f6f083993d814c57c3eb226622028"},"schema_version":"1.0","source":{"id":"2603.01487","kind":"arxiv","version":3}},"canonical_sha256":"9c7fa4a4d18675e74bcdec7c5e1d15fb6a0cf1ebe6e42b07a3885b706e988d79","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9c7fa4a4d18675e74bcdec7c5e1d15fb6a0cf1ebe6e42b07a3885b706e988d79","first_computed_at":"2026-06-02T03:04:39.659546Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-02T03:04:39.659546Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"95eF9A051KNLMtfCtL1xa3gIr0qMhs+fAubJb/d4YnvA6bbH5kQlGK7jquonc4g1MIxPAEUViLdV+xw4s1BJDA==","signature_status":"signed_v1","signed_at":"2026-06-02T03:04:39.660054Z","signed_message":"canonical_sha256_bytes"},"source_id":"2603.01487","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7874b94ef12ad79e5b2a114756f147af746d8e15567dd2254abb6e9e242b55b1","sha256:569c87fd42e780770fc673da4d9c9349c390579e4b44e61c4d92fb8bf3393db8"],"state_sha256":"92fbc46e0003a5d9605c2c1f4d399673b024f35d834e2dee79627b99bdaa46ea"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"29kRQIiGgTRVyZF6VQ4L6G2y/yGrJ6gfH8uOiSMe/yyfnuMtTgjh1y9ZdhBTLscFllw0CKg5PomiS48QV0lMDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T04:48:53.077199Z","bundle_sha256":"69cb337caa19f879c08de06be92c6c08eb71e25d425ba014881a3e79e1ed8c8c"}}