{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:H4PL6HGICXOWSMFYLGP37DVKZC","short_pith_number":"pith:H4PL6HGI","canonical_record":{"source":{"id":"1803.03272","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-03-08T19:00:10Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"749cc50cbdff417d09f59f337f5946dae17335e1a7b1d89c31be850321ab976c","abstract_canon_sha256":"b6acb844fada3d005ec2b62491545dddaa44c5d385293b4163f6df3423ebbc45"},"schema_version":"1.0"},"canonical_sha256":"3f1ebf1cc815dd6930b8599fbf8eaac890c05a75351980522c176c03a0a8a6fb","source":{"kind":"arxiv","id":"1803.03272","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.03272","created_at":"2026-05-17T23:58:41Z"},{"alias_kind":"arxiv_version","alias_value":"1803.03272v1","created_at":"2026-05-17T23:58:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.03272","created_at":"2026-05-17T23:58:41Z"},{"alias_kind":"pith_short_12","alias_value":"H4PL6HGICXOW","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"H4PL6HGICXOWSMFY","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"H4PL6HGI","created_at":"2026-05-18T12:32:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:H4PL6HGICXOWSMFYLGP37DVKZC","target":"record","payload":{"canonical_record":{"source":{"id":"1803.03272","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-03-08T19:00:10Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"749cc50cbdff417d09f59f337f5946dae17335e1a7b1d89c31be850321ab976c","abstract_canon_sha256":"b6acb844fada3d005ec2b62491545dddaa44c5d385293b4163f6df3423ebbc45"},"schema_version":"1.0"},"canonical_sha256":"3f1ebf1cc815dd6930b8599fbf8eaac890c05a75351980522c176c03a0a8a6fb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:58:41.894087Z","signature_b64":"UXv/DOqvr9yNw27sPMXrD9NiR8P6tqztavxSSWTTuph9vPYRif8ysQsuUsZm6PSflmYJ7t5H4mEHt8qjmCHvBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3f1ebf1cc815dd6930b8599fbf8eaac890c05a75351980522c176c03a0a8a6fb","last_reissued_at":"2026-05-17T23:58:41.893242Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:58:41.893242Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.03272","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":"2026-05-17T23:58:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RQP498gaOn2zZS0a/lFUJFf84B3o1VS7NBxYuoJahgvzHTMfsxhQgW+VUFMAqnGjf2WCKkb39n+ftEzUWoFbCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T22:43:49.422346Z"},"content_sha256":"7fde8909d6323fd32392b5b3ef0beb6cb088a99b9167c810161641f860670102","schema_version":"1.0","event_id":"sha256:7fde8909d6323fd32392b5b3ef0beb6cb088a99b9167c810161641f860670102"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:H4PL6HGICXOWSMFYLGP37DVKZC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"What does the first highly-redshifted 21-cm detection tell us about early galaxies?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Jordan Mirocha, Steven R. Furlanetto","submitted_at":"2018-03-08T19:00:10Z","abstract_excerpt":"The Experiment to Detect the Global Epoch of Reionization Signature (EDGES) recently reported a strong 21-cm absorption signal relative to the cosmic microwave background at $z \\sim 18$. While its anomalous amplitude may indicate new physics, in this work we focus on the timing of the signal, as it alone provides an important constraint on galaxy formation models. Whereas rest-frame ultraviolet luminosity functions (UVLFs) over a broad range of redshifts are well fit by simple models in which galaxy star formation histories track the assembly of dark matter halos, we find that these same model"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.03272","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":""},"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":"2026-05-17T23:58:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PL9imOIyg1Y7Lh9n0MMbJxGq7RB99V70PIndK4LydNNhGb0UGfYT3Q1y7rdJZEXuHZ3roMrRFllkkaoWAqMNCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T22:43:49.422791Z"},"content_sha256":"000a33fa2d131a884d4dbf254c2cf62374de473f098b0c080a63ba71df2e82ee","schema_version":"1.0","event_id":"sha256:000a33fa2d131a884d4dbf254c2cf62374de473f098b0c080a63ba71df2e82ee"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/H4PL6HGICXOWSMFYLGP37DVKZC/bundle.json","state_url":"https://pith.science/pith/H4PL6HGICXOWSMFYLGP37DVKZC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/H4PL6HGICXOWSMFYLGP37DVKZC/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":"2026-08-16T22:43:49Z","links":{"resolver":"https://pith.science/pith/H4PL6HGICXOWSMFYLGP37DVKZC","bundle":"https://pith.science/pith/H4PL6HGICXOWSMFYLGP37DVKZC/bundle.json","state":"https://pith.science/pith/H4PL6HGICXOWSMFYLGP37DVKZC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/H4PL6HGICXOWSMFYLGP37DVKZC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:H4PL6HGICXOWSMFYLGP37DVKZC","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":"b6acb844fada3d005ec2b62491545dddaa44c5d385293b4163f6df3423ebbc45","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-03-08T19:00:10Z","title_canon_sha256":"749cc50cbdff417d09f59f337f5946dae17335e1a7b1d89c31be850321ab976c"},"schema_version":"1.0","source":{"id":"1803.03272","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.03272","created_at":"2026-05-17T23:58:41Z"},{"alias_kind":"arxiv_version","alias_value":"1803.03272v1","created_at":"2026-05-17T23:58:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.03272","created_at":"2026-05-17T23:58:41Z"},{"alias_kind":"pith_short_12","alias_value":"H4PL6HGICXOW","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"H4PL6HGICXOWSMFY","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"H4PL6HGI","created_at":"2026-05-18T12:32:28Z"}],"graph_snapshots":[{"event_id":"sha256:000a33fa2d131a884d4dbf254c2cf62374de473f098b0c080a63ba71df2e82ee","target":"graph","created_at":"2026-05-17T23:58:41Z","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"},"paper":{"abstract_excerpt":"The Experiment to Detect the Global Epoch of Reionization Signature (EDGES) recently reported a strong 21-cm absorption signal relative to the cosmic microwave background at $z \\sim 18$. While its anomalous amplitude may indicate new physics, in this work we focus on the timing of the signal, as it alone provides an important constraint on galaxy formation models. Whereas rest-frame ultraviolet luminosity functions (UVLFs) over a broad range of redshifts are well fit by simple models in which galaxy star formation histories track the assembly of dark matter halos, we find that these same model","authors_text":"Jordan Mirocha, Steven R. Furlanetto","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-03-08T19:00:10Z","title":"What does the first highly-redshifted 21-cm detection tell us about early galaxies?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.03272","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":"sha256:7fde8909d6323fd32392b5b3ef0beb6cb088a99b9167c810161641f860670102","target":"record","created_at":"2026-05-17T23:58:41Z","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":"b6acb844fada3d005ec2b62491545dddaa44c5d385293b4163f6df3423ebbc45","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-03-08T19:00:10Z","title_canon_sha256":"749cc50cbdff417d09f59f337f5946dae17335e1a7b1d89c31be850321ab976c"},"schema_version":"1.0","source":{"id":"1803.03272","kind":"arxiv","version":1}},"canonical_sha256":"3f1ebf1cc815dd6930b8599fbf8eaac890c05a75351980522c176c03a0a8a6fb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3f1ebf1cc815dd6930b8599fbf8eaac890c05a75351980522c176c03a0a8a6fb","first_computed_at":"2026-05-17T23:58:41.893242Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:58:41.893242Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UXv/DOqvr9yNw27sPMXrD9NiR8P6tqztavxSSWTTuph9vPYRif8ysQsuUsZm6PSflmYJ7t5H4mEHt8qjmCHvBg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:58:41.894087Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.03272","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7fde8909d6323fd32392b5b3ef0beb6cb088a99b9167c810161641f860670102","sha256:000a33fa2d131a884d4dbf254c2cf62374de473f098b0c080a63ba71df2e82ee"],"state_sha256":"507724e33ce1666609171272168bfbeae8677a4806056759d59adc7dd58b9eb8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oDxxx/AIS3kRXHa5RBeJS2Qcuv1A6CsJtrB4sRKW9RPE+T6qSmfd7fQq0Fqwp5GxjQ3uVHIdN1dzbW4m4HXBBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T22:43:49.426004Z","bundle_sha256":"ae5267176605af0da900897f57f00146a25c333f61217b56442dd7c5588dd22c"}}