{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:NL25CYB463RT6QET7SFDASGGUU","short_pith_number":"pith:NL25CYB4","canonical_record":{"source":{"id":"2212.07540","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-12-14T22:53:55Z","cross_cats_sorted":[],"title_canon_sha256":"e110da722d6cf69a1dc5ff6bff634a21ac4ce7cb59214b88092f31d95294bc8c","abstract_canon_sha256":"5729e4c8671c2d1640b37576c1352ce4c97b364ce51ebc2715de27c3a0eebcaa"},"schema_version":"1.0"},"canonical_sha256":"6af5d1603cf6e33f4093fc8a3048c6a533ab126a847701c1fd6f53e2129ecfc1","source":{"kind":"arxiv","id":"2212.07540","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.07540","created_at":"2026-07-05T06:10:25Z"},{"alias_kind":"arxiv_version","alias_value":"2212.07540v2","created_at":"2026-07-05T06:10:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.07540","created_at":"2026-07-05T06:10:25Z"},{"alias_kind":"pith_short_12","alias_value":"NL25CYB463RT","created_at":"2026-07-05T06:10:25Z"},{"alias_kind":"pith_short_16","alias_value":"NL25CYB463RT6QET","created_at":"2026-07-05T06:10:25Z"},{"alias_kind":"pith_short_8","alias_value":"NL25CYB4","created_at":"2026-07-05T06:10:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:NL25CYB463RT6QET7SFDASGGUU","target":"record","payload":{"canonical_record":{"source":{"id":"2212.07540","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-12-14T22:53:55Z","cross_cats_sorted":[],"title_canon_sha256":"e110da722d6cf69a1dc5ff6bff634a21ac4ce7cb59214b88092f31d95294bc8c","abstract_canon_sha256":"5729e4c8671c2d1640b37576c1352ce4c97b364ce51ebc2715de27c3a0eebcaa"},"schema_version":"1.0"},"canonical_sha256":"6af5d1603cf6e33f4093fc8a3048c6a533ab126a847701c1fd6f53e2129ecfc1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:10:25.940804Z","signature_b64":"0chhDhKj7EUG2wvTmvZ4U4Qc6djEgwg3FExb40un/LBjbSi5/Rd0ABGP7DgqbHL+9rwctQ+5xq33UOAil+IIBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6af5d1603cf6e33f4093fc8a3048c6a533ab126a847701c1fd6f53e2129ecfc1","last_reissued_at":"2026-07-05T06:10:25.940302Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:10:25.940302Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2212.07540","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":"2026-07-05T06:10:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"chDC68NZ4ks5xMlVBlRLX+ICcdkFAcG53j9OedtHK2nBLFxNRlsztSgKfPPhbS9BkTHsx9nUi/uMoG6S+74XCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-14T19:14:26.936376Z"},"content_sha256":"1beec20f346dc0dae0969c27bf866b06fe6e2fac45f6a4ba6502fae23d794830","schema_version":"1.0","event_id":"sha256:1beec20f346dc0dae0969c27bf866b06fe6e2fac45f6a4ba6502fae23d794830"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:NL25CYB463RT6QET7SFDASGGUU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"JWST catches the assembly of a $z\\sim5$ ultra-low-mass galaxy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Adam Muzzin, Anishya Harshan, Chris J. Willott, Gabriel Brammer, Ga\\\"el Noirot, Ghassan T. E. Sarrouh, Guillaume Desprez, Johannes Zabl, Kartheik Iyer, Lamiya Mowla, Marcin Sawicki, Maru\\v{s}a Brada\\v{c}, Nicholas S. Martis, Roberto Abraham, Swara Ravindranath, Victoria Strait, Yoshihisa Asada","submitted_at":"2022-12-14T22:53:55Z","abstract_excerpt":"Using CANUCS imaging we found an apparent major merger of two $z\\sim5$ ultra-low-mass galaxies ($M_\\star\\sim10^{7}M_\\odot$ each) that are doubly imaged and magnified $\\sim$12-15$\\times$ by the lensing cluster MACS 0417. Both galaxies are experiencing young ($\\sim$100 Myr), synchronised bursts of star formation with $\\log({\\rm sSFR/Gyr^{-1}} )\\sim$1.3-1.4, yet SFRs of just $\\sim 0.2 M_\\odot\\ {\\rm yr}^{-1}$. They have sub-solar ($Z\\sim0.2Z_\\odot$) gas-phase metallicities and are connected by an even more metal-poor star-forming bridge. The galaxy that forms from the merger will have a mass of at"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.07540","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/2212.07540/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":"2026-07-05T06:10:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/gFAP1HT0dBX4+XwxijIfjsZ7Q2OpBvyVMEsSO/1dS3ZiSi9oj5zipJAGrqn4XQSalji6kugjHXUVFrYYTJnDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-14T19:14:26.936752Z"},"content_sha256":"4cdfa5e75fd7fb4f782b9dc4f6912b183a27d2f1ef3ee3d0b62f0cb281592392","schema_version":"1.0","event_id":"sha256:4cdfa5e75fd7fb4f782b9dc4f6912b183a27d2f1ef3ee3d0b62f0cb281592392"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NL25CYB463RT6QET7SFDASGGUU/bundle.json","state_url":"https://pith.science/pith/NL25CYB463RT6QET7SFDASGGUU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NL25CYB463RT6QET7SFDASGGUU/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":"2026-07-14T19:14:26Z","links":{"resolver":"https://pith.science/pith/NL25CYB463RT6QET7SFDASGGUU","bundle":"https://pith.science/pith/NL25CYB463RT6QET7SFDASGGUU/bundle.json","state":"https://pith.science/pith/NL25CYB463RT6QET7SFDASGGUU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NL25CYB463RT6QET7SFDASGGUU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:NL25CYB463RT6QET7SFDASGGUU","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":"5729e4c8671c2d1640b37576c1352ce4c97b364ce51ebc2715de27c3a0eebcaa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-12-14T22:53:55Z","title_canon_sha256":"e110da722d6cf69a1dc5ff6bff634a21ac4ce7cb59214b88092f31d95294bc8c"},"schema_version":"1.0","source":{"id":"2212.07540","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.07540","created_at":"2026-07-05T06:10:25Z"},{"alias_kind":"arxiv_version","alias_value":"2212.07540v2","created_at":"2026-07-05T06:10:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.07540","created_at":"2026-07-05T06:10:25Z"},{"alias_kind":"pith_short_12","alias_value":"NL25CYB463RT","created_at":"2026-07-05T06:10:25Z"},{"alias_kind":"pith_short_16","alias_value":"NL25CYB463RT6QET","created_at":"2026-07-05T06:10:25Z"},{"alias_kind":"pith_short_8","alias_value":"NL25CYB4","created_at":"2026-07-05T06:10:25Z"}],"graph_snapshots":[{"event_id":"sha256:4cdfa5e75fd7fb4f782b9dc4f6912b183a27d2f1ef3ee3d0b62f0cb281592392","target":"graph","created_at":"2026-07-05T06:10:25Z","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/2212.07540/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Using CANUCS imaging we found an apparent major merger of two $z\\sim5$ ultra-low-mass galaxies ($M_\\star\\sim10^{7}M_\\odot$ each) that are doubly imaged and magnified $\\sim$12-15$\\times$ by the lensing cluster MACS 0417. Both galaxies are experiencing young ($\\sim$100 Myr), synchronised bursts of star formation with $\\log({\\rm sSFR/Gyr^{-1}} )\\sim$1.3-1.4, yet SFRs of just $\\sim 0.2 M_\\odot\\ {\\rm yr}^{-1}$. They have sub-solar ($Z\\sim0.2Z_\\odot$) gas-phase metallicities and are connected by an even more metal-poor star-forming bridge. The galaxy that forms from the merger will have a mass of at","authors_text":"Adam Muzzin, Anishya Harshan, Chris J. Willott, Gabriel Brammer, Ga\\\"el Noirot, Ghassan T. E. Sarrouh, Guillaume Desprez, Johannes Zabl, Kartheik Iyer, Lamiya Mowla, Marcin Sawicki, Maru\\v{s}a Brada\\v{c}, Nicholas S. Martis, Roberto Abraham, Swara Ravindranath, Victoria Strait, Yoshihisa Asada","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-12-14T22:53:55Z","title":"JWST catches the assembly of a $z\\sim5$ ultra-low-mass galaxy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.07540","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":"sha256:1beec20f346dc0dae0969c27bf866b06fe6e2fac45f6a4ba6502fae23d794830","target":"record","created_at":"2026-07-05T06:10:25Z","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":"5729e4c8671c2d1640b37576c1352ce4c97b364ce51ebc2715de27c3a0eebcaa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-12-14T22:53:55Z","title_canon_sha256":"e110da722d6cf69a1dc5ff6bff634a21ac4ce7cb59214b88092f31d95294bc8c"},"schema_version":"1.0","source":{"id":"2212.07540","kind":"arxiv","version":2}},"canonical_sha256":"6af5d1603cf6e33f4093fc8a3048c6a533ab126a847701c1fd6f53e2129ecfc1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6af5d1603cf6e33f4093fc8a3048c6a533ab126a847701c1fd6f53e2129ecfc1","first_computed_at":"2026-07-05T06:10:25.940302Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:10:25.940302Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0chhDhKj7EUG2wvTmvZ4U4Qc6djEgwg3FExb40un/LBjbSi5/Rd0ABGP7DgqbHL+9rwctQ+5xq33UOAil+IIBw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:10:25.940804Z","signed_message":"canonical_sha256_bytes"},"source_id":"2212.07540","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1beec20f346dc0dae0969c27bf866b06fe6e2fac45f6a4ba6502fae23d794830","sha256:4cdfa5e75fd7fb4f782b9dc4f6912b183a27d2f1ef3ee3d0b62f0cb281592392"],"state_sha256":"a247144ed066de4409a458495bf658f4be6f9b9ae81c8e70c1f5f126c8e4e3c5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kuImMW80WDchyG2Ph27EKzweN4m8SwqdGQxd/qLLOMGAEn/lbFbKHOxdi3S9o2e3C2BeCD20GzJpwhSRS1VnBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-14T19:14:26.939170Z","bundle_sha256":"c28af8d676b39a214fdaea3a05f172a2d1b095b4284ac2d2702c19b6a5d79908"}}