{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:P6EGKGJNTHO2VD7YZGE7XOMALS","short_pith_number":"pith:P6EGKGJN","canonical_record":{"source":{"id":"1008.5244","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-08-31T08:02:33Z","cross_cats_sorted":[],"title_canon_sha256":"f5a7a834ea14b0e60665d85343ba383bbfcb334b2d32c1b6ad6c4293878e124f","abstract_canon_sha256":"14a47303b70b32cae4f63d3ae1a8090051bc4efbbcb1d9a8f0e187db1179e58b"},"schema_version":"1.0"},"canonical_sha256":"7f8865192d99ddaa8ff8c989fbb9805c8465fea60b9781a9a8b1fcb58206efac","source":{"kind":"arxiv","id":"1008.5244","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1008.5244","created_at":"2026-05-18T02:05:41Z"},{"alias_kind":"arxiv_version","alias_value":"1008.5244v2","created_at":"2026-05-18T02:05:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.5244","created_at":"2026-05-18T02:05:41Z"},{"alias_kind":"pith_short_12","alias_value":"P6EGKGJNTHO2","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"P6EGKGJNTHO2VD7Y","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"P6EGKGJN","created_at":"2026-05-18T12:26:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:P6EGKGJNTHO2VD7YZGE7XOMALS","target":"record","payload":{"canonical_record":{"source":{"id":"1008.5244","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-08-31T08:02:33Z","cross_cats_sorted":[],"title_canon_sha256":"f5a7a834ea14b0e60665d85343ba383bbfcb334b2d32c1b6ad6c4293878e124f","abstract_canon_sha256":"14a47303b70b32cae4f63d3ae1a8090051bc4efbbcb1d9a8f0e187db1179e58b"},"schema_version":"1.0"},"canonical_sha256":"7f8865192d99ddaa8ff8c989fbb9805c8465fea60b9781a9a8b1fcb58206efac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:41.144607Z","signature_b64":"sa9nvSFlge6rEcGWlwxnc8dq0+Znc1OZSSahs+EXT9TRt/9QCNGtKRve8/GpY79xrD6Am8K8deoCkqBSbfPjAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7f8865192d99ddaa8ff8c989fbb9805c8465fea60b9781a9a8b1fcb58206efac","last_reissued_at":"2026-05-18T02:05:41.143876Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:41.143876Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1008.5244","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":"2026-05-18T02:05:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YQWBg4PSb+1FbgqWbU0RH8wjAvtHn2OG/ixOVaSwzc6W47JG01Jeev11kfKmfLylg00uXIdsIz9rh+3iaw8tBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T12:59:42.884823Z"},"content_sha256":"0f1dd285e0a163bfd2283543151dd753f59a261fcd8f410b809e1295f320fe68","schema_version":"1.0","event_id":"sha256:0f1dd285e0a163bfd2283543151dd753f59a261fcd8f410b809e1295f320fe68"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:P6EGKGJNTHO2VD7YZGE7XOMALS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The stellar mass function of the most massive galaxies at 3<=z<5 in the UKIDSS Ultra Deep Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"D. Farrah, J.S. Dunlop, K.I. Caputi, M. Cirasuolo, O. Almaini, R.J. Mclure","submitted_at":"2010-08-31T08:02:33Z","abstract_excerpt":"We have analysed a sample of 1292 4.5 micron-selected galaxies at z>=3, over 0.6 square degrees of the UKIRT Infrared Deep Survey (UKIDSS) Ultra Deep Survey (UDS). Using photometry from the U band through 4.5 microns, we have obtained photometric redshifts and derived stellar masses for our sources. Only two of our galaxies potentially lie at z>5. We have studied the galaxy stellar mass function at 3<=z<5, based on the 1213 galaxies in our catalogue with [4.5]<= 24.0. We find that: i) the number density of M > 10^11 Msun galaxies increased by a factor > 10 between z=5 and 3, indicating that th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.5244","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":""},"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":"2026-05-18T02:05:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kSM0WIDJphDilE8mZN3HDMb7WMLUXFCf/3WJf03Dvba49nGTN0lqQMSMbojQSkXjjZZDS8FUBKiqqEsHTrWcBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T12:59:42.885515Z"},"content_sha256":"d7bb206e11d52773559c6401ad9c6886c017509513184e0ba6a9211c1c29ae1a","schema_version":"1.0","event_id":"sha256:d7bb206e11d52773559c6401ad9c6886c017509513184e0ba6a9211c1c29ae1a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P6EGKGJNTHO2VD7YZGE7XOMALS/bundle.json","state_url":"https://pith.science/pith/P6EGKGJNTHO2VD7YZGE7XOMALS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P6EGKGJNTHO2VD7YZGE7XOMALS/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":"2026-05-25T12:59:42Z","links":{"resolver":"https://pith.science/pith/P6EGKGJNTHO2VD7YZGE7XOMALS","bundle":"https://pith.science/pith/P6EGKGJNTHO2VD7YZGE7XOMALS/bundle.json","state":"https://pith.science/pith/P6EGKGJNTHO2VD7YZGE7XOMALS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P6EGKGJNTHO2VD7YZGE7XOMALS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:P6EGKGJNTHO2VD7YZGE7XOMALS","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":"14a47303b70b32cae4f63d3ae1a8090051bc4efbbcb1d9a8f0e187db1179e58b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-08-31T08:02:33Z","title_canon_sha256":"f5a7a834ea14b0e60665d85343ba383bbfcb334b2d32c1b6ad6c4293878e124f"},"schema_version":"1.0","source":{"id":"1008.5244","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1008.5244","created_at":"2026-05-18T02:05:41Z"},{"alias_kind":"arxiv_version","alias_value":"1008.5244v2","created_at":"2026-05-18T02:05:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.5244","created_at":"2026-05-18T02:05:41Z"},{"alias_kind":"pith_short_12","alias_value":"P6EGKGJNTHO2","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"P6EGKGJNTHO2VD7Y","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"P6EGKGJN","created_at":"2026-05-18T12:26:12Z"}],"graph_snapshots":[{"event_id":"sha256:d7bb206e11d52773559c6401ad9c6886c017509513184e0ba6a9211c1c29ae1a","target":"graph","created_at":"2026-05-18T02:05:41Z","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":"We have analysed a sample of 1292 4.5 micron-selected galaxies at z>=3, over 0.6 square degrees of the UKIRT Infrared Deep Survey (UKIDSS) Ultra Deep Survey (UDS). Using photometry from the U band through 4.5 microns, we have obtained photometric redshifts and derived stellar masses for our sources. Only two of our galaxies potentially lie at z>5. We have studied the galaxy stellar mass function at 3<=z<5, based on the 1213 galaxies in our catalogue with [4.5]<= 24.0. We find that: i) the number density of M > 10^11 Msun galaxies increased by a factor > 10 between z=5 and 3, indicating that th","authors_text":"D. Farrah, J.S. Dunlop, K.I. Caputi, M. Cirasuolo, O. Almaini, R.J. Mclure","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-08-31T08:02:33Z","title":"The stellar mass function of the most massive galaxies at 3<=z<5 in the UKIDSS Ultra Deep Survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.5244","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":"sha256:0f1dd285e0a163bfd2283543151dd753f59a261fcd8f410b809e1295f320fe68","target":"record","created_at":"2026-05-18T02:05:41Z","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":"14a47303b70b32cae4f63d3ae1a8090051bc4efbbcb1d9a8f0e187db1179e58b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-08-31T08:02:33Z","title_canon_sha256":"f5a7a834ea14b0e60665d85343ba383bbfcb334b2d32c1b6ad6c4293878e124f"},"schema_version":"1.0","source":{"id":"1008.5244","kind":"arxiv","version":2}},"canonical_sha256":"7f8865192d99ddaa8ff8c989fbb9805c8465fea60b9781a9a8b1fcb58206efac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7f8865192d99ddaa8ff8c989fbb9805c8465fea60b9781a9a8b1fcb58206efac","first_computed_at":"2026-05-18T02:05:41.143876Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:05:41.143876Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sa9nvSFlge6rEcGWlwxnc8dq0+Znc1OZSSahs+EXT9TRt/9QCNGtKRve8/GpY79xrD6Am8K8deoCkqBSbfPjAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:05:41.144607Z","signed_message":"canonical_sha256_bytes"},"source_id":"1008.5244","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0f1dd285e0a163bfd2283543151dd753f59a261fcd8f410b809e1295f320fe68","sha256:d7bb206e11d52773559c6401ad9c6886c017509513184e0ba6a9211c1c29ae1a"],"state_sha256":"eda10df9ba4c3b51de5f7e65587f3d0297bd6dd77009646c0a180713d3716364"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9Nd0c+34WHQl1EH2KP0qWMGYIb5r2P1zh5IMJPzkK7cogYyeYP2wlI1gfKEBqX4X1zFLRyNAt/FG2lltqQKmDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T12:59:42.889252Z","bundle_sha256":"59858049cf043ed76a43713b8da648bffa0a0259ad16b873ce4c8e83df22057d"}}