{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:2H22XY3TCR44H4ADCG6L6AY77L","short_pith_number":"pith:2H22XY3T","schema_version":"1.0","canonical_sha256":"d1f5abe3731479c3f00311bcbf031ffafdee703550dd3abe7661747da1708057","source":{"kind":"arxiv","id":"0909.4723","version":2},"attestation_state":"computed","paper":{"title":"Supernovae as seen by off-center observers in a local void","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Edvard Mortsell, Michael Blomqvist","submitted_at":"2009-09-25T15:32:43Z","abstract_excerpt":"Inhomogeneous universe models have been proposed as an alternative explanation for the apparent acceleration of the cosmic expansion that does not require dark energy. In the simplest class of inhomogeneous models, we live within a large, spherically symmetric void. Several studies have shown that such a model can be made consistent with many observations, in particular the redshift--luminosity distance relation for type Ia supernovae, provided that the void is of Gpc size and that we live close to the center. Such a scenario challenges the Copernican principle that we do not occupy a special "},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"0909.4723","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-09-25T15:32:43Z","cross_cats_sorted":[],"title_canon_sha256":"efac0f976794c2c1c0293d111cb3d142772a910d45282526e5927ace4e229424","abstract_canon_sha256":"9e4eb4dab809e378db2d1a84461c92845665933c85af63b50aa386b60b1aa338"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:34:27.594165Z","signature_b64":"yYV3AXFdnsQNlFgcnDth6Ydn/m3bjOhL6EM7pG7B1vEPIfYcz/l26h4IL1MRu0Ba26X57GT41gLWdchnU32ZBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d1f5abe3731479c3f00311bcbf031ffafdee703550dd3abe7661747da1708057","last_reissued_at":"2026-05-18T02:34:27.593553Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:34:27.593553Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Supernovae as seen by off-center observers in a local void","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Edvard Mortsell, Michael Blomqvist","submitted_at":"2009-09-25T15:32:43Z","abstract_excerpt":"Inhomogeneous universe models have been proposed as an alternative explanation for the apparent acceleration of the cosmic expansion that does not require dark energy. In the simplest class of inhomogeneous models, we live within a large, spherically symmetric void. Several studies have shown that such a model can be made consistent with many observations, in particular the redshift--luminosity distance relation for type Ia supernovae, provided that the void is of Gpc size and that we live close to the center. Such a scenario challenges the Copernican principle that we do not occupy a special "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.4723","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"0909.4723","created_at":"2026-05-18T02:34:27.593638+00:00"},{"alias_kind":"arxiv_version","alias_value":"0909.4723v2","created_at":"2026-05-18T02:34:27.593638+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.4723","created_at":"2026-05-18T02:34:27.593638+00:00"},{"alias_kind":"pith_short_12","alias_value":"2H22XY3TCR44","created_at":"2026-05-18T12:25:58.018023+00:00"},{"alias_kind":"pith_short_16","alias_value":"2H22XY3TCR44H4AD","created_at":"2026-05-18T12:25:58.018023+00:00"},{"alias_kind":"pith_short_8","alias_value":"2H22XY3T","created_at":"2026-05-18T12:25:58.018023+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/2H22XY3TCR44H4ADCG6L6AY77L","json":"https://pith.science/pith/2H22XY3TCR44H4ADCG6L6AY77L.json","graph_json":"https://pith.science/api/pith-number/2H22XY3TCR44H4ADCG6L6AY77L/graph.json","events_json":"https://pith.science/api/pith-number/2H22XY3TCR44H4ADCG6L6AY77L/events.json","paper":"https://pith.science/paper/2H22XY3T"},"agent_actions":{"view_html":"https://pith.science/pith/2H22XY3TCR44H4ADCG6L6AY77L","download_json":"https://pith.science/pith/2H22XY3TCR44H4ADCG6L6AY77L.json","view_paper":"https://pith.science/paper/2H22XY3T","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0909.4723&json=true","fetch_graph":"https://pith.science/api/pith-number/2H22XY3TCR44H4ADCG6L6AY77L/graph.json","fetch_events":"https://pith.science/api/pith-number/2H22XY3TCR44H4ADCG6L6AY77L/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2H22XY3TCR44H4ADCG6L6AY77L/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2H22XY3TCR44H4ADCG6L6AY77L/action/storage_attestation","attest_author":"https://pith.science/pith/2H22XY3TCR44H4ADCG6L6AY77L/action/author_attestation","sign_citation":"https://pith.science/pith/2H22XY3TCR44H4ADCG6L6AY77L/action/citation_signature","submit_replication":"https://pith.science/pith/2H22XY3TCR44H4ADCG6L6AY77L/action/replication_record"}},"created_at":"2026-05-18T02:34:27.593638+00:00","updated_at":"2026-05-18T02:34:27.593638+00:00"}