{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:U53TZYDHTE2MNA6UT645P2HZLP","short_pith_number":"pith:U53TZYDH","canonical_record":{"source":{"id":"2009.04838","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-09-10T13:23:34Z","cross_cats_sorted":[],"title_canon_sha256":"687da9e0314d18f02686870fa925ac837e9d4c9d46101750f2b21c5ed0e6e335","abstract_canon_sha256":"4ede7c08bdd702630c94f2555d1b0326a42aae588d9e800e73127e154cf10f27"},"schema_version":"1.0"},"canonical_sha256":"a7773ce0679934c683d49fb9d7e8f95bd448bcb60b5a98e26c41bb9da6672729","source":{"kind":"arxiv","id":"2009.04838","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.04838","created_at":"2026-07-05T02:19:31Z"},{"alias_kind":"arxiv_version","alias_value":"2009.04838v2","created_at":"2026-07-05T02:19:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.04838","created_at":"2026-07-05T02:19:31Z"},{"alias_kind":"pith_short_12","alias_value":"U53TZYDHTE2M","created_at":"2026-07-05T02:19:31Z"},{"alias_kind":"pith_short_16","alias_value":"U53TZYDHTE2MNA6U","created_at":"2026-07-05T02:19:31Z"},{"alias_kind":"pith_short_8","alias_value":"U53TZYDH","created_at":"2026-07-05T02:19:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:U53TZYDHTE2MNA6UT645P2HZLP","target":"record","payload":{"canonical_record":{"source":{"id":"2009.04838","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-09-10T13:23:34Z","cross_cats_sorted":[],"title_canon_sha256":"687da9e0314d18f02686870fa925ac837e9d4c9d46101750f2b21c5ed0e6e335","abstract_canon_sha256":"4ede7c08bdd702630c94f2555d1b0326a42aae588d9e800e73127e154cf10f27"},"schema_version":"1.0"},"canonical_sha256":"a7773ce0679934c683d49fb9d7e8f95bd448bcb60b5a98e26c41bb9da6672729","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:19:31.770617Z","signature_b64":"YK7uq/mIlxtaVi+AeJ+nFeXPoYfeq3ZxpmpCxT1f7i8d99qlyxamzXOfoDhRX5EMNaBOPz5U0ieGaCrqLlq4AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a7773ce0679934c683d49fb9d7e8f95bd448bcb60b5a98e26c41bb9da6672729","last_reissued_at":"2026-07-05T02:19:31.770087Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:19:31.770087Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2009.04838","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":"2026-07-05T02:19:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yfeGhe1ZgHQ3M8hY9R6+3HlVm6u6up0yBYKT7Evlth/wclk0Moz2ol1Agoe4xWbsPYr1GuBOekc+rcfy5kc/Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-27T03:23:04.432699Z"},"content_sha256":"c9ebf11b7e69068c6406b64faf44c6f648141f3ce4fbcfe9f6ac84bcb5c9d2ae","schema_version":"1.0","event_id":"sha256:c9ebf11b7e69068c6406b64faf44c6f648141f3ce4fbcfe9f6ac84bcb5c9d2ae"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:U53TZYDHTE2MNA6UT645P2HZLP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"ALMA Lensing Cluster Survey: an ALMA galaxy signposting a MUSE galaxy group at z=4.3 behind 'El Gordo'","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Zitrin, B. Hatsukade, C. Grillo, D. Coe, D. Espada, E. Egami, E. Vanzella, F. Sun, F. Tang, F. Valentino, G. B. Caminha, G. E. Magdis, H. Umehata, J. F. Wu, K. I. Caputi, K. K. Knudsen, K. Kohno, K. Morokuma-Matsui, L. Bradley, M. M. Lee, M. Ouchi, P. Oesch, P. Rosati, S. Deshmukh, S. Fujimoto, W.-H. Wang, Y. Ao","submitted_at":"2020-09-10T13:23:34Z","abstract_excerpt":"We report the discovery of a Multi Unit Spectroscopic Explorer (MUSE) galaxy group at z=4.32 lensed by the massive galaxy cluster ACT-CL J0102-4915 (aka El Gordo) at z=0.87, associated with a 1.2 mm source which is at a 2.07+/-0.88 kpc projected distance from one of the group galaxies. Three images of the whole system appear in the image plane. The 1.2 mm source has been detected within the Atacama Large Millimetre/submillimetre Array (ALMA) Lensing Cluster Survey (ALCS). As this ALMA source is undetected at wavelengths lambda < 2 microns, its redshift cannot be independently determined, howev"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.04838","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/2009.04838/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":"2026-07-05T02:19:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4orVYF1X6bdBqSZCJVAgDiMH/pfYYCz9LRVsAygdXTgqH8J6D1s45ibhPqFGFZee296ISeOS8wY5TSNLZaWbBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-27T03:23:04.433071Z"},"content_sha256":"596d127ed7b1f5b580c72457f671cf999184e53ea62b4249fec924d09ddcf8e5","schema_version":"1.0","event_id":"sha256:596d127ed7b1f5b580c72457f671cf999184e53ea62b4249fec924d09ddcf8e5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U53TZYDHTE2MNA6UT645P2HZLP/bundle.json","state_url":"https://pith.science/pith/U53TZYDHTE2MNA6UT645P2HZLP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U53TZYDHTE2MNA6UT645P2HZLP/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":"2026-07-27T03:23:04Z","links":{"resolver":"https://pith.science/pith/U53TZYDHTE2MNA6UT645P2HZLP","bundle":"https://pith.science/pith/U53TZYDHTE2MNA6UT645P2HZLP/bundle.json","state":"https://pith.science/pith/U53TZYDHTE2MNA6UT645P2HZLP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U53TZYDHTE2MNA6UT645P2HZLP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:U53TZYDHTE2MNA6UT645P2HZLP","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":"4ede7c08bdd702630c94f2555d1b0326a42aae588d9e800e73127e154cf10f27","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-09-10T13:23:34Z","title_canon_sha256":"687da9e0314d18f02686870fa925ac837e9d4c9d46101750f2b21c5ed0e6e335"},"schema_version":"1.0","source":{"id":"2009.04838","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.04838","created_at":"2026-07-05T02:19:31Z"},{"alias_kind":"arxiv_version","alias_value":"2009.04838v2","created_at":"2026-07-05T02:19:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.04838","created_at":"2026-07-05T02:19:31Z"},{"alias_kind":"pith_short_12","alias_value":"U53TZYDHTE2M","created_at":"2026-07-05T02:19:31Z"},{"alias_kind":"pith_short_16","alias_value":"U53TZYDHTE2MNA6U","created_at":"2026-07-05T02:19:31Z"},{"alias_kind":"pith_short_8","alias_value":"U53TZYDH","created_at":"2026-07-05T02:19:31Z"}],"graph_snapshots":[{"event_id":"sha256:596d127ed7b1f5b580c72457f671cf999184e53ea62b4249fec924d09ddcf8e5","target":"graph","created_at":"2026-07-05T02:19:31Z","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/2009.04838/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the discovery of a Multi Unit Spectroscopic Explorer (MUSE) galaxy group at z=4.32 lensed by the massive galaxy cluster ACT-CL J0102-4915 (aka El Gordo) at z=0.87, associated with a 1.2 mm source which is at a 2.07+/-0.88 kpc projected distance from one of the group galaxies. Three images of the whole system appear in the image plane. The 1.2 mm source has been detected within the Atacama Large Millimetre/submillimetre Array (ALMA) Lensing Cluster Survey (ALCS). As this ALMA source is undetected at wavelengths lambda < 2 microns, its redshift cannot be independently determined, howev","authors_text":"A. Zitrin, B. Hatsukade, C. Grillo, D. Coe, D. Espada, E. Egami, E. Vanzella, F. Sun, F. Tang, F. Valentino, G. B. Caminha, G. E. Magdis, H. Umehata, J. F. Wu, K. I. Caputi, K. K. Knudsen, K. Kohno, K. Morokuma-Matsui, L. Bradley, M. M. Lee, M. Ouchi, P. Oesch, P. Rosati, S. Deshmukh, S. Fujimoto, W.-H. Wang, Y. Ao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-09-10T13:23:34Z","title":"ALMA Lensing Cluster Survey: an ALMA galaxy signposting a MUSE galaxy group at z=4.3 behind 'El Gordo'"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.04838","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:c9ebf11b7e69068c6406b64faf44c6f648141f3ce4fbcfe9f6ac84bcb5c9d2ae","target":"record","created_at":"2026-07-05T02:19:31Z","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":"4ede7c08bdd702630c94f2555d1b0326a42aae588d9e800e73127e154cf10f27","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-09-10T13:23:34Z","title_canon_sha256":"687da9e0314d18f02686870fa925ac837e9d4c9d46101750f2b21c5ed0e6e335"},"schema_version":"1.0","source":{"id":"2009.04838","kind":"arxiv","version":2}},"canonical_sha256":"a7773ce0679934c683d49fb9d7e8f95bd448bcb60b5a98e26c41bb9da6672729","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a7773ce0679934c683d49fb9d7e8f95bd448bcb60b5a98e26c41bb9da6672729","first_computed_at":"2026-07-05T02:19:31.770087Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:19:31.770087Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YK7uq/mIlxtaVi+AeJ+nFeXPoYfeq3ZxpmpCxT1f7i8d99qlyxamzXOfoDhRX5EMNaBOPz5U0ieGaCrqLlq4AA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:19:31.770617Z","signed_message":"canonical_sha256_bytes"},"source_id":"2009.04838","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c9ebf11b7e69068c6406b64faf44c6f648141f3ce4fbcfe9f6ac84bcb5c9d2ae","sha256:596d127ed7b1f5b580c72457f671cf999184e53ea62b4249fec924d09ddcf8e5"],"state_sha256":"71fa98f6261ae3bb9f63bf389b47e6272235fd7bca45a721b311cd12379c95be"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MbBhbakC3j5FcrJIjhypm9rUww/uxbvCUn+RBzDqmzkcjH5BEfXqXfSUQYfDpkVM6L2Jt1fT3rFyC/b5rcOCDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-27T03:23:04.435204Z","bundle_sha256":"ef27cd94321b419c3eefa21ee632202f59b1260eb258daaa333b8d4d736046b5"}}