{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:TYXDNQANQAPLCHGWGAVXBC5BQR","short_pith_number":"pith:TYXDNQAN","canonical_record":{"source":{"id":"1002.0014","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-01-30T00:03:30Z","cross_cats_sorted":[],"title_canon_sha256":"dce9826bcd99beb644bb01e4145bf0f48773f9d54c342dc8aa0a9d614e855d71","abstract_canon_sha256":"daf960faef46fb6dcffb9c95feeb41cded051bcfbb0d9d0f1882a093dd39b330"},"schema_version":"1.0"},"canonical_sha256":"9e2e36c00d801eb11cd6302b708ba18468d56e1ded039057f052b1d12ebd3bb7","source":{"kind":"arxiv","id":"1002.0014","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1002.0014","created_at":"2026-05-18T02:33:48Z"},{"alias_kind":"arxiv_version","alias_value":"1002.0014v1","created_at":"2026-05-18T02:33:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.0014","created_at":"2026-05-18T02:33:48Z"},{"alias_kind":"pith_short_12","alias_value":"TYXDNQANQAPL","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"TYXDNQANQAPLCHGW","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"TYXDNQAN","created_at":"2026-05-18T12:26:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:TYXDNQANQAPLCHGWGAVXBC5BQR","target":"record","payload":{"canonical_record":{"source":{"id":"1002.0014","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-01-30T00:03:30Z","cross_cats_sorted":[],"title_canon_sha256":"dce9826bcd99beb644bb01e4145bf0f48773f9d54c342dc8aa0a9d614e855d71","abstract_canon_sha256":"daf960faef46fb6dcffb9c95feeb41cded051bcfbb0d9d0f1882a093dd39b330"},"schema_version":"1.0"},"canonical_sha256":"9e2e36c00d801eb11cd6302b708ba18468d56e1ded039057f052b1d12ebd3bb7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:33:48.942236Z","signature_b64":"LsNPw7vcM3OuDzfCXcdWsQc+XHok2Iqi00UtYK7kJCoSE5FLjf1toZbJ9IizYLM4oCokYOQ4BMunCLFtqqGfAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9e2e36c00d801eb11cd6302b708ba18468d56e1ded039057f052b1d12ebd3bb7","last_reissued_at":"2026-05-18T02:33:48.941694Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:33:48.941694Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1002.0014","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":"2026-05-18T02:33:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oFC6iqd0QTtKfLNBYLMAl3U/K8M0zer186QW33sTckzmFQeVZdxZL1hhjr8EIDFoxWmeBzjD9i6u9g+SJ275Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T20:11:09.595155Z"},"content_sha256":"ce036b1066a26414e9046b154124fb2f335d4d68e849cd76f38fcc7bc210e897","schema_version":"1.0","event_id":"sha256:ce036b1066a26414e9046b154124fb2f335d4d68e849cd76f38fcc7bc210e897"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:TYXDNQANQAPLCHGWGAVXBC5BQR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Voids as a Precision Probe of Dark Energy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Benjamin D. Wandelt, Esfandiar Alizadeh, Rahul Biswas","submitted_at":"2010-01-30T00:03:30Z","abstract_excerpt":"A signature of the dark energy equation of state may be observed in the shape of voids. We estimate the constraints on cosmological parameters that would be determined from the ellipticity distribution of voids from future spectroscopic surveys already planned for the study of large scale structure.\n  The constraints stem from the sensitivity of the distribution of ellipticity to the cosmological parameters through the variance of fluctuations of the density field smoothed at some length scale. This length scale can be chosen to be of the order of the comoving radii of voids at very early time"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.0014","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":"2026-05-18T02:33:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ikpjye+P8L2fn3wBm9XJsE1uIwPGd2jLIA+0la7SnJjhaY4rIVsNB6u8BEt5DqN3zQXvyVCqzlDDOvgbG6EeAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T20:11:09.595536Z"},"content_sha256":"55eb830d345caf7b9920a2e45ee961bea2ac42b29447cd248a9f51e42061933b","schema_version":"1.0","event_id":"sha256:55eb830d345caf7b9920a2e45ee961bea2ac42b29447cd248a9f51e42061933b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TYXDNQANQAPLCHGWGAVXBC5BQR/bundle.json","state_url":"https://pith.science/pith/TYXDNQANQAPLCHGWGAVXBC5BQR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TYXDNQANQAPLCHGWGAVXBC5BQR/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":"2026-06-04T20:11:09Z","links":{"resolver":"https://pith.science/pith/TYXDNQANQAPLCHGWGAVXBC5BQR","bundle":"https://pith.science/pith/TYXDNQANQAPLCHGWGAVXBC5BQR/bundle.json","state":"https://pith.science/pith/TYXDNQANQAPLCHGWGAVXBC5BQR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TYXDNQANQAPLCHGWGAVXBC5BQR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:TYXDNQANQAPLCHGWGAVXBC5BQR","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":"daf960faef46fb6dcffb9c95feeb41cded051bcfbb0d9d0f1882a093dd39b330","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-01-30T00:03:30Z","title_canon_sha256":"dce9826bcd99beb644bb01e4145bf0f48773f9d54c342dc8aa0a9d614e855d71"},"schema_version":"1.0","source":{"id":"1002.0014","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1002.0014","created_at":"2026-05-18T02:33:48Z"},{"alias_kind":"arxiv_version","alias_value":"1002.0014v1","created_at":"2026-05-18T02:33:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.0014","created_at":"2026-05-18T02:33:48Z"},{"alias_kind":"pith_short_12","alias_value":"TYXDNQANQAPL","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"TYXDNQANQAPLCHGW","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"TYXDNQAN","created_at":"2026-05-18T12:26:15Z"}],"graph_snapshots":[{"event_id":"sha256:55eb830d345caf7b9920a2e45ee961bea2ac42b29447cd248a9f51e42061933b","target":"graph","created_at":"2026-05-18T02:33:48Z","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":"A signature of the dark energy equation of state may be observed in the shape of voids. We estimate the constraints on cosmological parameters that would be determined from the ellipticity distribution of voids from future spectroscopic surveys already planned for the study of large scale structure.\n  The constraints stem from the sensitivity of the distribution of ellipticity to the cosmological parameters through the variance of fluctuations of the density field smoothed at some length scale. This length scale can be chosen to be of the order of the comoving radii of voids at very early time","authors_text":"Benjamin D. Wandelt, Esfandiar Alizadeh, Rahul Biswas","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-01-30T00:03:30Z","title":"Voids as a Precision Probe of Dark Energy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.0014","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:ce036b1066a26414e9046b154124fb2f335d4d68e849cd76f38fcc7bc210e897","target":"record","created_at":"2026-05-18T02:33:48Z","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":"daf960faef46fb6dcffb9c95feeb41cded051bcfbb0d9d0f1882a093dd39b330","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-01-30T00:03:30Z","title_canon_sha256":"dce9826bcd99beb644bb01e4145bf0f48773f9d54c342dc8aa0a9d614e855d71"},"schema_version":"1.0","source":{"id":"1002.0014","kind":"arxiv","version":1}},"canonical_sha256":"9e2e36c00d801eb11cd6302b708ba18468d56e1ded039057f052b1d12ebd3bb7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9e2e36c00d801eb11cd6302b708ba18468d56e1ded039057f052b1d12ebd3bb7","first_computed_at":"2026-05-18T02:33:48.941694Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:33:48.941694Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LsNPw7vcM3OuDzfCXcdWsQc+XHok2Iqi00UtYK7kJCoSE5FLjf1toZbJ9IizYLM4oCokYOQ4BMunCLFtqqGfAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:33:48.942236Z","signed_message":"canonical_sha256_bytes"},"source_id":"1002.0014","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ce036b1066a26414e9046b154124fb2f335d4d68e849cd76f38fcc7bc210e897","sha256:55eb830d345caf7b9920a2e45ee961bea2ac42b29447cd248a9f51e42061933b"],"state_sha256":"8c90fdf4abc34a8b4f94fd6f27b562e664fddd30b9f39b34824ce2730cad98ee"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A4j3Qck9YplvnJCzrv57HPTXCQHwuJB0f4tGU6G+9pGfGGBTDOmqLxwSrg0TyYDEAuxEG0Swss6rm1DcVTUNCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T20:11:09.597544Z","bundle_sha256":"afbbc61db0c49c94104388f40a802c26f00bdf18d454e4eed86e0b831331a4e7"}}