{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:DXE5KTO7DVM2JBLLYF7JZ7REKS","short_pith_number":"pith:DXE5KTO7","canonical_record":{"source":{"id":"1207.2524","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-11T02:00:46Z","cross_cats_sorted":[],"title_canon_sha256":"e83444ce7d936379041272900a3cb96d092b46b9d1302e868fbeb4234082755d","abstract_canon_sha256":"99d9cb8baea5e08c5fcc50edf2373c20699cb4f8ff377932f325d01b17c5b9e3"},"schema_version":"1.0"},"canonical_sha256":"1dc9d54ddf1d59a4856bc17e9cfe245494a478bafd05d440636eb7990da98dea","source":{"kind":"arxiv","id":"1207.2524","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.2524","created_at":"2026-05-18T01:56:25Z"},{"alias_kind":"arxiv_version","alias_value":"1207.2524v2","created_at":"2026-05-18T01:56:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.2524","created_at":"2026-05-18T01:56:25Z"},{"alias_kind":"pith_short_12","alias_value":"DXE5KTO7DVM2","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"DXE5KTO7DVM2JBLL","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"DXE5KTO7","created_at":"2026-05-18T12:27:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:DXE5KTO7DVM2JBLLYF7JZ7REKS","target":"record","payload":{"canonical_record":{"source":{"id":"1207.2524","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-11T02:00:46Z","cross_cats_sorted":[],"title_canon_sha256":"e83444ce7d936379041272900a3cb96d092b46b9d1302e868fbeb4234082755d","abstract_canon_sha256":"99d9cb8baea5e08c5fcc50edf2373c20699cb4f8ff377932f325d01b17c5b9e3"},"schema_version":"1.0"},"canonical_sha256":"1dc9d54ddf1d59a4856bc17e9cfe245494a478bafd05d440636eb7990da98dea","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:56:25.541708Z","signature_b64":"DkPXGwd5NeI5XTkHOFcC+IazaNIzo3wKYCfisCR1WQBlZkRFlrtKKveCYGhWcUmy/ohtDfBqlgARnX0qw31LAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1dc9d54ddf1d59a4856bc17e9cfe245494a478bafd05d440636eb7990da98dea","last_reissued_at":"2026-05-18T01:56:25.541026Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:56:25.541026Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1207.2524","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":"2026-05-18T01:56:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mrGQeymfoHRDV3OsLDefipKIz6aVMnScgH6ojcjW09EVkwf9r+6BlCWfWYh2ruC8QDY6IfBx+WqiKBvolePvCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T21:09:44.928660Z"},"content_sha256":"2f3a74f64f726c149af75646c266227a2bd5783a68f4fcf75578d9b35dd71220","schema_version":"1.0","event_id":"sha256:2f3a74f64f726c149af75646c266227a2bd5783a68f4fcf75578d9b35dd71220"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:DXE5KTO7DVM2JBLLYF7JZ7REKS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A public void catalog from the SDSS DR7 Galaxy Redshift Surveys based on the watershed transform","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Benjamin D. Wandelt, David H. Weinberg, Guilhem Lavaux, P. M. Sutter","submitted_at":"2012-07-11T02:00:46Z","abstract_excerpt":"We produce the most comprehensive public void catalog to date using the Sloan Digital Sky Survey Data Release 7 main sample out to redshift z=0.2 and the luminous red galaxy sample out to z=0.44. Using a modified version of the parameter-free void finder ZOBOV, we fully take into account the presence of the survey boundary and masks. Our strategy for finding voids is thus appropriate for any survey configuration. We produce two distinct catalogs: a complete catalog including voids near any masks, which would be appropriate for void galaxy surveys, and a bias-free catalog of voids away from any"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.2524","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":"2026-05-18T01:56:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2fp8J23oqZ1CoFqw3kkIpnsM4RLfzmLCTZQHo+YsF6II4lfFs+v4cK8CXCJMN0ljstguOi6C6qrp2/FSHEr9CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T21:09:44.929025Z"},"content_sha256":"2d207db0c9ef1a2a7f9dd601023a402b3cbfde7fddcccd533d91e78b4291e55d","schema_version":"1.0","event_id":"sha256:2d207db0c9ef1a2a7f9dd601023a402b3cbfde7fddcccd533d91e78b4291e55d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DXE5KTO7DVM2JBLLYF7JZ7REKS/bundle.json","state_url":"https://pith.science/pith/DXE5KTO7DVM2JBLLYF7JZ7REKS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DXE5KTO7DVM2JBLLYF7JZ7REKS/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":"2026-05-30T21:09:44Z","links":{"resolver":"https://pith.science/pith/DXE5KTO7DVM2JBLLYF7JZ7REKS","bundle":"https://pith.science/pith/DXE5KTO7DVM2JBLLYF7JZ7REKS/bundle.json","state":"https://pith.science/pith/DXE5KTO7DVM2JBLLYF7JZ7REKS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DXE5KTO7DVM2JBLLYF7JZ7REKS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:DXE5KTO7DVM2JBLLYF7JZ7REKS","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":"99d9cb8baea5e08c5fcc50edf2373c20699cb4f8ff377932f325d01b17c5b9e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-11T02:00:46Z","title_canon_sha256":"e83444ce7d936379041272900a3cb96d092b46b9d1302e868fbeb4234082755d"},"schema_version":"1.0","source":{"id":"1207.2524","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.2524","created_at":"2026-05-18T01:56:25Z"},{"alias_kind":"arxiv_version","alias_value":"1207.2524v2","created_at":"2026-05-18T01:56:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.2524","created_at":"2026-05-18T01:56:25Z"},{"alias_kind":"pith_short_12","alias_value":"DXE5KTO7DVM2","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"DXE5KTO7DVM2JBLL","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"DXE5KTO7","created_at":"2026-05-18T12:27:04Z"}],"graph_snapshots":[{"event_id":"sha256:2d207db0c9ef1a2a7f9dd601023a402b3cbfde7fddcccd533d91e78b4291e55d","target":"graph","created_at":"2026-05-18T01:56:25Z","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"},"paper":{"abstract_excerpt":"We produce the most comprehensive public void catalog to date using the Sloan Digital Sky Survey Data Release 7 main sample out to redshift z=0.2 and the luminous red galaxy sample out to z=0.44. Using a modified version of the parameter-free void finder ZOBOV, we fully take into account the presence of the survey boundary and masks. Our strategy for finding voids is thus appropriate for any survey configuration. We produce two distinct catalogs: a complete catalog including voids near any masks, which would be appropriate for void galaxy surveys, and a bias-free catalog of voids away from any","authors_text":"Benjamin D. Wandelt, David H. Weinberg, Guilhem Lavaux, P. M. Sutter","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-11T02:00:46Z","title":"A public void catalog from the SDSS DR7 Galaxy Redshift Surveys based on the watershed transform"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.2524","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":"sha256:2f3a74f64f726c149af75646c266227a2bd5783a68f4fcf75578d9b35dd71220","target":"record","created_at":"2026-05-18T01:56:25Z","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":"99d9cb8baea5e08c5fcc50edf2373c20699cb4f8ff377932f325d01b17c5b9e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-11T02:00:46Z","title_canon_sha256":"e83444ce7d936379041272900a3cb96d092b46b9d1302e868fbeb4234082755d"},"schema_version":"1.0","source":{"id":"1207.2524","kind":"arxiv","version":2}},"canonical_sha256":"1dc9d54ddf1d59a4856bc17e9cfe245494a478bafd05d440636eb7990da98dea","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1dc9d54ddf1d59a4856bc17e9cfe245494a478bafd05d440636eb7990da98dea","first_computed_at":"2026-05-18T01:56:25.541026Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:56:25.541026Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DkPXGwd5NeI5XTkHOFcC+IazaNIzo3wKYCfisCR1WQBlZkRFlrtKKveCYGhWcUmy/ohtDfBqlgARnX0qw31LAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:56:25.541708Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.2524","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2f3a74f64f726c149af75646c266227a2bd5783a68f4fcf75578d9b35dd71220","sha256:2d207db0c9ef1a2a7f9dd601023a402b3cbfde7fddcccd533d91e78b4291e55d"],"state_sha256":"0603973ff24d8940f98798015fa23ceeef2744a4c2829e2bdbe372c8dc4c156e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Tt1JJsJGsr97YLoh+8mZYqXVsaFsG5IxRRrQ3F0nEheNAAtbRAwB20wZB+K9pJrEZHY8Q4cTerpBwpewOcs9AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T21:09:44.931190Z","bundle_sha256":"c5c952fff352c4df9986ba739b0ebe17bc65dd1465ca5f89ab65ca2051a8424e"}}