{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:U226MIBR5TNWAPQ2UEAXC4CJWC","short_pith_number":"pith:U226MIBR","canonical_record":{"source":{"id":"1209.1058","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.SP","submitted_at":"2012-09-05T17:48:31Z","cross_cats_sorted":[],"title_canon_sha256":"b1f2e7d2f6e12a4330d62c0803f0fa5ad00559357a018c40cdeec523fccf5fb3","abstract_canon_sha256":"1a350c39859b2642ea4210c0d8308b93ceb5d9b3181580d77b9ee1bec9b9899e"},"schema_version":"1.0"},"canonical_sha256":"a6b5e62031ecdb603e1aa101717049b0870e557280cdc2b1c61f8d52a84a5c79","source":{"kind":"arxiv","id":"1209.1058","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.1058","created_at":"2026-05-18T03:21:10Z"},{"alias_kind":"arxiv_version","alias_value":"1209.1058v2","created_at":"2026-05-18T03:21:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.1058","created_at":"2026-05-18T03:21:10Z"},{"alias_kind":"pith_short_12","alias_value":"U226MIBR5TNW","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"U226MIBR5TNWAPQ2","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"U226MIBR","created_at":"2026-05-18T12:27:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:U226MIBR5TNWAPQ2UEAXC4CJWC","target":"record","payload":{"canonical_record":{"source":{"id":"1209.1058","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.SP","submitted_at":"2012-09-05T17:48:31Z","cross_cats_sorted":[],"title_canon_sha256":"b1f2e7d2f6e12a4330d62c0803f0fa5ad00559357a018c40cdeec523fccf5fb3","abstract_canon_sha256":"1a350c39859b2642ea4210c0d8308b93ceb5d9b3181580d77b9ee1bec9b9899e"},"schema_version":"1.0"},"canonical_sha256":"a6b5e62031ecdb603e1aa101717049b0870e557280cdc2b1c61f8d52a84a5c79","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:21:10.575643Z","signature_b64":"tjeE/h9wJrAzF++VGHuUsDYYpXejs02PoePXljI5ggFZM3hWKxYdZnRUNLWlgPQe69/0/HdBwxEkaaN9eV8gDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a6b5e62031ecdb603e1aa101717049b0870e557280cdc2b1c61f8d52a84a5c79","last_reissued_at":"2026-05-18T03:21:10.574535Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:21:10.574535Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1209.1058","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":"2026-05-18T03:21:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yERbi9ocPKBA7WAAC09O99ATAxdcZcQCcq+ALHNIfVpEif6F1OgcLrE6Ug4iegrzarrzP8gALYsZkJjPNkz6AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:36:40.422061Z"},"content_sha256":"ea5063295ddc2b7f504af2f576685328f38049e0f50b31948e5e063b5048ef1c","schema_version":"1.0","event_id":"sha256:ea5063295ddc2b7f504af2f576685328f38049e0f50b31948e5e063b5048ef1c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:U226MIBR5TNWAPQ2UEAXC4CJWC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Sharp spectral bounds on starlike domains","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.SP","authors_text":"Bartlomiej Siudeja, Richard Laugesen","submitted_at":"2012-09-05T17:48:31Z","abstract_excerpt":"We prove sharp bounds on eigenvalues of the Laplacian that complement the Faber--Krahn and Luttinger inequalities. In particular, we prove that the ball maximizes the first eigenvalue and minimizes the spectral zeta function and heat trace. The normalization on the domain incorporates volume and a computable geometric factor that measures the deviation of the domain from roundness, in terms of moment of inertia and a support functional introduced by P\\'{o}lya and Szeg\\H{o}.\n  Additional functionals handled by our method include finite sums and products of eigenvalues. The results hold on conve"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.1058","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":"2026-05-18T03:21:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qBr/3VmnJlWtDPNjDOP+4H02ohe7Ph4kDrFCpRmNhcF0gmClNufYV/gzOddeJ3b6ESi4JGfX0foCxCnGxxKDAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:36:40.422767Z"},"content_sha256":"913409f624bf053f534c380b3181e4603ffcbb28e52fcb8e7bcbe8129b82462a","schema_version":"1.0","event_id":"sha256:913409f624bf053f534c380b3181e4603ffcbb28e52fcb8e7bcbe8129b82462a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U226MIBR5TNWAPQ2UEAXC4CJWC/bundle.json","state_url":"https://pith.science/pith/U226MIBR5TNWAPQ2UEAXC4CJWC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U226MIBR5TNWAPQ2UEAXC4CJWC/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":"2026-05-26T10:36:40Z","links":{"resolver":"https://pith.science/pith/U226MIBR5TNWAPQ2UEAXC4CJWC","bundle":"https://pith.science/pith/U226MIBR5TNWAPQ2UEAXC4CJWC/bundle.json","state":"https://pith.science/pith/U226MIBR5TNWAPQ2UEAXC4CJWC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U226MIBR5TNWAPQ2UEAXC4CJWC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:U226MIBR5TNWAPQ2UEAXC4CJWC","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":"1a350c39859b2642ea4210c0d8308b93ceb5d9b3181580d77b9ee1bec9b9899e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.SP","submitted_at":"2012-09-05T17:48:31Z","title_canon_sha256":"b1f2e7d2f6e12a4330d62c0803f0fa5ad00559357a018c40cdeec523fccf5fb3"},"schema_version":"1.0","source":{"id":"1209.1058","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.1058","created_at":"2026-05-18T03:21:10Z"},{"alias_kind":"arxiv_version","alias_value":"1209.1058v2","created_at":"2026-05-18T03:21:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.1058","created_at":"2026-05-18T03:21:10Z"},{"alias_kind":"pith_short_12","alias_value":"U226MIBR5TNW","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"U226MIBR5TNWAPQ2","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"U226MIBR","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:913409f624bf053f534c380b3181e4603ffcbb28e52fcb8e7bcbe8129b82462a","target":"graph","created_at":"2026-05-18T03:21:10Z","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 prove sharp bounds on eigenvalues of the Laplacian that complement the Faber--Krahn and Luttinger inequalities. In particular, we prove that the ball maximizes the first eigenvalue and minimizes the spectral zeta function and heat trace. The normalization on the domain incorporates volume and a computable geometric factor that measures the deviation of the domain from roundness, in terms of moment of inertia and a support functional introduced by P\\'{o}lya and Szeg\\H{o}.\n  Additional functionals handled by our method include finite sums and products of eigenvalues. The results hold on conve","authors_text":"Bartlomiej Siudeja, Richard Laugesen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.SP","submitted_at":"2012-09-05T17:48:31Z","title":"Sharp spectral bounds on starlike domains"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.1058","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:ea5063295ddc2b7f504af2f576685328f38049e0f50b31948e5e063b5048ef1c","target":"record","created_at":"2026-05-18T03:21:10Z","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":"1a350c39859b2642ea4210c0d8308b93ceb5d9b3181580d77b9ee1bec9b9899e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.SP","submitted_at":"2012-09-05T17:48:31Z","title_canon_sha256":"b1f2e7d2f6e12a4330d62c0803f0fa5ad00559357a018c40cdeec523fccf5fb3"},"schema_version":"1.0","source":{"id":"1209.1058","kind":"arxiv","version":2}},"canonical_sha256":"a6b5e62031ecdb603e1aa101717049b0870e557280cdc2b1c61f8d52a84a5c79","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a6b5e62031ecdb603e1aa101717049b0870e557280cdc2b1c61f8d52a84a5c79","first_computed_at":"2026-05-18T03:21:10.574535Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:21:10.574535Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tjeE/h9wJrAzF++VGHuUsDYYpXejs02PoePXljI5ggFZM3hWKxYdZnRUNLWlgPQe69/0/HdBwxEkaaN9eV8gDw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:21:10.575643Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.1058","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ea5063295ddc2b7f504af2f576685328f38049e0f50b31948e5e063b5048ef1c","sha256:913409f624bf053f534c380b3181e4603ffcbb28e52fcb8e7bcbe8129b82462a"],"state_sha256":"dd3d62c8a872f6855dd1a9a5a1bc90bb09888a1289a88bc956ab7c1197e818c8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IaAoLH+Q607j/oifDXh62YgGz/tZWfN6Jo1xzJUvRm1TwaicA3cEyF9UtkZMDRw7hP5umRemGKuFeVvcyw/FAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T10:36:40.425736Z","bundle_sha256":"b541010e751dbdd46a5adc1ccba405a0bac14be0d2c24d2d8ea0388877b56a93"}}