{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:R35XTNDBGIW5SJGPCM7UG7UJFP","short_pith_number":"pith:R35XTNDB","canonical_record":{"source":{"id":"1309.4223","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-09-17T08:24:17Z","cross_cats_sorted":[],"title_canon_sha256":"fd715d3d73efb44ff362a07a2ece0ac71ce5f089242cd876c82ca619ccb22a46","abstract_canon_sha256":"b0e154eac08f73fcda83dbb8824a9bc306fddfa013a55b843e81f39746fff6a3"},"schema_version":"1.0"},"canonical_sha256":"8efb79b461322dd924cf133f437e892bd3596312628fd395ca762f0e0909835f","source":{"kind":"arxiv","id":"1309.4223","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.4223","created_at":"2026-05-18T03:03:31Z"},{"alias_kind":"arxiv_version","alias_value":"1309.4223v1","created_at":"2026-05-18T03:03:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.4223","created_at":"2026-05-18T03:03:31Z"},{"alias_kind":"pith_short_12","alias_value":"R35XTNDBGIW5","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"R35XTNDBGIW5SJGP","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"R35XTNDB","created_at":"2026-05-18T12:27:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:R35XTNDBGIW5SJGPCM7UG7UJFP","target":"record","payload":{"canonical_record":{"source":{"id":"1309.4223","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-09-17T08:24:17Z","cross_cats_sorted":[],"title_canon_sha256":"fd715d3d73efb44ff362a07a2ece0ac71ce5f089242cd876c82ca619ccb22a46","abstract_canon_sha256":"b0e154eac08f73fcda83dbb8824a9bc306fddfa013a55b843e81f39746fff6a3"},"schema_version":"1.0"},"canonical_sha256":"8efb79b461322dd924cf133f437e892bd3596312628fd395ca762f0e0909835f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:03:31.796209Z","signature_b64":"I3PqNJjsPtXWhbV9mJDWjn+3amNxvqx1+U/FrpTjKpW6MFsNrHlD18sJ6mIrFnDx4rU+of0Hzwa9yXT/3W16Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8efb79b461322dd924cf133f437e892bd3596312628fd395ca762f0e0909835f","last_reissued_at":"2026-05-18T03:03:31.795554Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:03:31.795554Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1309.4223","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":"2026-05-18T03:03:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dVNpfnYBmjonwS/3SBCVGN02rbEH3CEnlWQ6wek9uXt4LZSz5iFXSzRpZ6mGrVOlvg7qmZVoS8iCnTKxfrybDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T13:05:56.900333Z"},"content_sha256":"fa3ba68cd70fad0187b02a149ec88c9dfdeb1fe74b542728a6643662abd73956","schema_version":"1.0","event_id":"sha256:fa3ba68cd70fad0187b02a149ec88c9dfdeb1fe74b542728a6643662abd73956"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:R35XTNDBGIW5SJGPCM7UG7UJFP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Serendipitous detection of an overdensity of Herschel-SPIRE 250 micron sources south of MRC1138-26","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"B. Altieri, D. Coia, E. Chapin, H. Dannerbauer, H. Dom\\'inguez-S\\'anchez, Ivan Valtchanov, J. S. Santos, L. Conversi, M. S\\'anchez-Portal, S. Berta, S. Temporin, T. D. Rawle","submitted_at":"2013-09-17T08:24:17Z","abstract_excerpt":"We report the serendipitous detection of a significant overdensity of Herschel-SPIRE 250 micron sources in the vicinity of MRC1138-26. We use an adaptive kernel density estimate to quantify the significance, including a comparison with other fields. The overdensity has a size of ~3.5-4' and stands out at ~5sigma with respect to the background estimate. No features with similar significance were found in four extragalactic control fields: GOODS-North, Lockman, COSMOS and UDS. The chance of having a similar overdensity in a field with the same number but randomly distributed sources is less than"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.4223","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":"2026-05-18T03:03:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+1ON1ECOe2uS3PtGbP9dbJ3CEpmsw+SnDEkpTHFDs9vRe8m0zqW/dvytFWUal4YNI5Moqz7vq3zlnP3UgZW9CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T13:05:56.900747Z"},"content_sha256":"fa3c88031f58297b96bf7bfd4b6f250d41b5c0b3729357068c4fc46019045a17","schema_version":"1.0","event_id":"sha256:fa3c88031f58297b96bf7bfd4b6f250d41b5c0b3729357068c4fc46019045a17"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R35XTNDBGIW5SJGPCM7UG7UJFP/bundle.json","state_url":"https://pith.science/pith/R35XTNDBGIW5SJGPCM7UG7UJFP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R35XTNDBGIW5SJGPCM7UG7UJFP/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":"2026-05-27T13:05:56Z","links":{"resolver":"https://pith.science/pith/R35XTNDBGIW5SJGPCM7UG7UJFP","bundle":"https://pith.science/pith/R35XTNDBGIW5SJGPCM7UG7UJFP/bundle.json","state":"https://pith.science/pith/R35XTNDBGIW5SJGPCM7UG7UJFP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R35XTNDBGIW5SJGPCM7UG7UJFP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:R35XTNDBGIW5SJGPCM7UG7UJFP","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":"b0e154eac08f73fcda83dbb8824a9bc306fddfa013a55b843e81f39746fff6a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-09-17T08:24:17Z","title_canon_sha256":"fd715d3d73efb44ff362a07a2ece0ac71ce5f089242cd876c82ca619ccb22a46"},"schema_version":"1.0","source":{"id":"1309.4223","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.4223","created_at":"2026-05-18T03:03:31Z"},{"alias_kind":"arxiv_version","alias_value":"1309.4223v1","created_at":"2026-05-18T03:03:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.4223","created_at":"2026-05-18T03:03:31Z"},{"alias_kind":"pith_short_12","alias_value":"R35XTNDBGIW5","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"R35XTNDBGIW5SJGP","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"R35XTNDB","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:fa3c88031f58297b96bf7bfd4b6f250d41b5c0b3729357068c4fc46019045a17","target":"graph","created_at":"2026-05-18T03:03:31Z","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"},"paper":{"abstract_excerpt":"We report the serendipitous detection of a significant overdensity of Herschel-SPIRE 250 micron sources in the vicinity of MRC1138-26. We use an adaptive kernel density estimate to quantify the significance, including a comparison with other fields. The overdensity has a size of ~3.5-4' and stands out at ~5sigma with respect to the background estimate. No features with similar significance were found in four extragalactic control fields: GOODS-North, Lockman, COSMOS and UDS. The chance of having a similar overdensity in a field with the same number but randomly distributed sources is less than","authors_text":"B. Altieri, D. Coia, E. Chapin, H. Dannerbauer, H. Dom\\'inguez-S\\'anchez, Ivan Valtchanov, J. S. Santos, L. Conversi, M. S\\'anchez-Portal, S. Berta, S. Temporin, T. D. Rawle","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-09-17T08:24:17Z","title":"Serendipitous detection of an overdensity of Herschel-SPIRE 250 micron sources south of MRC1138-26"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.4223","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:fa3ba68cd70fad0187b02a149ec88c9dfdeb1fe74b542728a6643662abd73956","target":"record","created_at":"2026-05-18T03:03:31Z","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":"b0e154eac08f73fcda83dbb8824a9bc306fddfa013a55b843e81f39746fff6a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-09-17T08:24:17Z","title_canon_sha256":"fd715d3d73efb44ff362a07a2ece0ac71ce5f089242cd876c82ca619ccb22a46"},"schema_version":"1.0","source":{"id":"1309.4223","kind":"arxiv","version":1}},"canonical_sha256":"8efb79b461322dd924cf133f437e892bd3596312628fd395ca762f0e0909835f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8efb79b461322dd924cf133f437e892bd3596312628fd395ca762f0e0909835f","first_computed_at":"2026-05-18T03:03:31.795554Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:03:31.795554Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"I3PqNJjsPtXWhbV9mJDWjn+3amNxvqx1+U/FrpTjKpW6MFsNrHlD18sJ6mIrFnDx4rU+of0Hzwa9yXT/3W16Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:03:31.796209Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.4223","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fa3ba68cd70fad0187b02a149ec88c9dfdeb1fe74b542728a6643662abd73956","sha256:fa3c88031f58297b96bf7bfd4b6f250d41b5c0b3729357068c4fc46019045a17"],"state_sha256":"15e9397233bb25f4977c18838b91edbc75827e2fdd753c6d85c2b947adec9ac7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m+lTkGHwy552Hp+2Wyc5eVGzoj5WG8CVnPt6PuALzzO9m5gYrwts6IfwtYaB0co80g96eJu0uCfzD7vv4qwuBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T13:05:56.906188Z","bundle_sha256":"c76b79845b15540d4109458ecec2285bf397d3b56e373eb9667d28b98cf5bd8a"}}