{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:VOX3X33ZI7SCFFRSNAS6HOCECH","short_pith_number":"pith:VOX3X33Z","canonical_record":{"source":{"id":"1310.2791","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-10-10T12:32:33Z","cross_cats_sorted":[],"title_canon_sha256":"c32c92b188784cb2bb7d22c7718f3c8b1c9a495684e78fd9dc6e06cf3f8b7aca","abstract_canon_sha256":"80037c2842191b24dba542241d37347b79e1438dc58c8af15f4baea1680c37eb"},"schema_version":"1.0"},"canonical_sha256":"abafbbef7947e42296326825e3b84411f24671ff7cb444eec6139c78e1377b47","source":{"kind":"arxiv","id":"1310.2791","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.2791","created_at":"2026-05-18T02:53:07Z"},{"alias_kind":"arxiv_version","alias_value":"1310.2791v3","created_at":"2026-05-18T02:53:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.2791","created_at":"2026-05-18T02:53:07Z"},{"alias_kind":"pith_short_12","alias_value":"VOX3X33ZI7SC","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"VOX3X33ZI7SCFFRS","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"VOX3X33Z","created_at":"2026-05-18T12:28:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:VOX3X33ZI7SCFFRSNAS6HOCECH","target":"record","payload":{"canonical_record":{"source":{"id":"1310.2791","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-10-10T12:32:33Z","cross_cats_sorted":[],"title_canon_sha256":"c32c92b188784cb2bb7d22c7718f3c8b1c9a495684e78fd9dc6e06cf3f8b7aca","abstract_canon_sha256":"80037c2842191b24dba542241d37347b79e1438dc58c8af15f4baea1680c37eb"},"schema_version":"1.0"},"canonical_sha256":"abafbbef7947e42296326825e3b84411f24671ff7cb444eec6139c78e1377b47","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:53:07.976233Z","signature_b64":"2/w6AIjWjAWxg1dLxeZn5ZtstVEPXqxQ7d2ZRKAb1Fz1qZRG70YjmwRJWBUBd9K/tEQb5EOFIJHTMbQsz+FCAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"abafbbef7947e42296326825e3b84411f24671ff7cb444eec6139c78e1377b47","last_reissued_at":"2026-05-18T02:53:07.975572Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:53:07.975572Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.2791","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:53:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FoKUfcJiyzYBQUCaxbc8svlmSisbIw9r3sCUfWGSZfuD64A5SGgXjR2i3/nd/jGgemUutldTq2kveC0hVMz9Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:59:19.384795Z"},"content_sha256":"7df5aaf10e5873869a231af8099231a4df7b68aac11babb017deb190bb6d9d1f","schema_version":"1.0","event_id":"sha256:7df5aaf10e5873869a231af8099231a4df7b68aac11babb017deb190bb6d9d1f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:VOX3X33ZI7SCFFRSNAS6HOCECH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A robust public catalogue of voids and superclusters in the SDSS Data Release 7 galaxy surveys","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"2), (2) University of Helsinki, 3) ((1) University of Bielefeld, (3) University of Sussex), Seshadri Nadathur (1, Shaun Hotchkiss (2","submitted_at":"2013-10-10T12:32:33Z","abstract_excerpt":"The study of the interesting cosmological properties of voids in the Universe depends on the efficient and robust identification of such voids in galaxy redshift surveys. Recently, Sutter et al. (2012) have published a public catalogue of voids in the Sloan Digital Sky Survey Data Release 7 main galaxy and luminous red galaxy samples, using the void-finding algorithm ZOBOV, which is based on the watershed transform. We examine the properties of this catalogue and show that it suffers from several problems and inconsistencies, including the identification of some extremely overdense regions as "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.2791","kind":"arxiv","version":3},"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":"2026-05-18T02:53:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sjyF4XQvxozTxtPg/L5ELrhHy0TPwnGtSvCC8xa3xgmuyKyMQFYbrFpOEQ8G7R1A+nG6MlPLDuOEZCg4rdVZAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:59:19.385487Z"},"content_sha256":"4951835ed04cd6486081bd4ee8563f4dc4725fffaf6b855daaab6b70bf7f69b0","schema_version":"1.0","event_id":"sha256:4951835ed04cd6486081bd4ee8563f4dc4725fffaf6b855daaab6b70bf7f69b0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VOX3X33ZI7SCFFRSNAS6HOCECH/bundle.json","state_url":"https://pith.science/pith/VOX3X33ZI7SCFFRSNAS6HOCECH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VOX3X33ZI7SCFFRSNAS6HOCECH/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":"2026-05-26T10:59:19Z","links":{"resolver":"https://pith.science/pith/VOX3X33ZI7SCFFRSNAS6HOCECH","bundle":"https://pith.science/pith/VOX3X33ZI7SCFFRSNAS6HOCECH/bundle.json","state":"https://pith.science/pith/VOX3X33ZI7SCFFRSNAS6HOCECH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VOX3X33ZI7SCFFRSNAS6HOCECH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:VOX3X33ZI7SCFFRSNAS6HOCECH","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":"80037c2842191b24dba542241d37347b79e1438dc58c8af15f4baea1680c37eb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-10-10T12:32:33Z","title_canon_sha256":"c32c92b188784cb2bb7d22c7718f3c8b1c9a495684e78fd9dc6e06cf3f8b7aca"},"schema_version":"1.0","source":{"id":"1310.2791","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.2791","created_at":"2026-05-18T02:53:07Z"},{"alias_kind":"arxiv_version","alias_value":"1310.2791v3","created_at":"2026-05-18T02:53:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.2791","created_at":"2026-05-18T02:53:07Z"},{"alias_kind":"pith_short_12","alias_value":"VOX3X33ZI7SC","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"VOX3X33ZI7SCFFRS","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"VOX3X33Z","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:4951835ed04cd6486081bd4ee8563f4dc4725fffaf6b855daaab6b70bf7f69b0","target":"graph","created_at":"2026-05-18T02:53:07Z","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 study of the interesting cosmological properties of voids in the Universe depends on the efficient and robust identification of such voids in galaxy redshift surveys. Recently, Sutter et al. (2012) have published a public catalogue of voids in the Sloan Digital Sky Survey Data Release 7 main galaxy and luminous red galaxy samples, using the void-finding algorithm ZOBOV, which is based on the watershed transform. We examine the properties of this catalogue and show that it suffers from several problems and inconsistencies, including the identification of some extremely overdense regions as ","authors_text":"2), (2) University of Helsinki, 3) ((1) University of Bielefeld, (3) University of Sussex), Seshadri Nadathur (1, Shaun Hotchkiss (2","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-10-10T12:32:33Z","title":"A robust public catalogue of voids and superclusters in the SDSS Data Release 7 galaxy surveys"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.2791","kind":"arxiv","version":3},"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":"sha256:7df5aaf10e5873869a231af8099231a4df7b68aac11babb017deb190bb6d9d1f","target":"record","created_at":"2026-05-18T02:53:07Z","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":"80037c2842191b24dba542241d37347b79e1438dc58c8af15f4baea1680c37eb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-10-10T12:32:33Z","title_canon_sha256":"c32c92b188784cb2bb7d22c7718f3c8b1c9a495684e78fd9dc6e06cf3f8b7aca"},"schema_version":"1.0","source":{"id":"1310.2791","kind":"arxiv","version":3}},"canonical_sha256":"abafbbef7947e42296326825e3b84411f24671ff7cb444eec6139c78e1377b47","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"abafbbef7947e42296326825e3b84411f24671ff7cb444eec6139c78e1377b47","first_computed_at":"2026-05-18T02:53:07.975572Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:53:07.975572Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2/w6AIjWjAWxg1dLxeZn5ZtstVEPXqxQ7d2ZRKAb1Fz1qZRG70YjmwRJWBUBd9K/tEQb5EOFIJHTMbQsz+FCAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:53:07.976233Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.2791","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7df5aaf10e5873869a231af8099231a4df7b68aac11babb017deb190bb6d9d1f","sha256:4951835ed04cd6486081bd4ee8563f4dc4725fffaf6b855daaab6b70bf7f69b0"],"state_sha256":"f611845107552b8e26a05ccb153e82a344265592da67c6d5fdeda87b99440b0a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k2DDwqGddEEIXLlL+T9ZUKenOjiZUe+lp9ZJNqtFD8lFLQgez5RRQTk6B5gdKZolLtFPSmX2oVQV9oVO7zICCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T10:59:19.389113Z","bundle_sha256":"e639c9b69696c8b8f3968f4b51ec7eae2fb6d0de063f161b77de1d7a2c67a9c3"}}