{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:SFUSLF4ERVNXOGUENOFXVO5S44","short_pith_number":"pith:SFUSLF4E","canonical_record":{"source":{"id":"1210.8221","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-31T02:59:16Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"af5122b6777e999c7a220555565651ddbe5a74b1fe97fb4571247f00d9b4e0cf","abstract_canon_sha256":"28277efe9e3a39d629fd245368afeb0e1aa7eb132dc326b64a76858b406aef72"},"schema_version":"1.0"},"canonical_sha256":"91692597848d5b771a846b8b7abbb2e73f51ac50123d4bbceb4a5ebae98ccfc8","source":{"kind":"arxiv","id":"1210.8221","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.8221","created_at":"2026-05-18T03:34:37Z"},{"alias_kind":"arxiv_version","alias_value":"1210.8221v2","created_at":"2026-05-18T03:34:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.8221","created_at":"2026-05-18T03:34:37Z"},{"alias_kind":"pith_short_12","alias_value":"SFUSLF4ERVNX","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"SFUSLF4ERVNXOGUE","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"SFUSLF4E","created_at":"2026-05-18T12:27:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:SFUSLF4ERVNXOGUENOFXVO5S44","target":"record","payload":{"canonical_record":{"source":{"id":"1210.8221","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-31T02:59:16Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"af5122b6777e999c7a220555565651ddbe5a74b1fe97fb4571247f00d9b4e0cf","abstract_canon_sha256":"28277efe9e3a39d629fd245368afeb0e1aa7eb132dc326b64a76858b406aef72"},"schema_version":"1.0"},"canonical_sha256":"91692597848d5b771a846b8b7abbb2e73f51ac50123d4bbceb4a5ebae98ccfc8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:34:37.840055Z","signature_b64":"NnQDjbvXLSFerplMN8qe2l2M8AjzOvemfOEStwDSva4+fHkbJGMY3HhCoJoZ63uP4zfmLW989LTOP7zYA2g7AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"91692597848d5b771a846b8b7abbb2e73f51ac50123d4bbceb4a5ebae98ccfc8","last_reissued_at":"2026-05-18T03:34:37.839390Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:34:37.839390Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.8221","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":"2026-05-18T03:34:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SlyD216LLe5jEnGHBPDCnI6owqnxE9ASvnCehiZn/WqFlcw4lXCnCYHnQs0DKHj01TTyfsYah5RvIXXJNSsGBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T01:32:18.480639Z"},"content_sha256":"2badc3f0c24fc284cc7448a32fd7081528b5f14fa8820dcf6f936429691fb80d","schema_version":"1.0","event_id":"sha256:2badc3f0c24fc284cc7448a32fd7081528b5f14fa8820dcf6f936429691fb80d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:SFUSLF4ERVNXOGUENOFXVO5S44","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing Dark Energy Anisotropy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"Eric V. Linder, Stephen A. Appleby","submitted_at":"2012-10-31T02:59:16Z","abstract_excerpt":"Wide area cosmological surveys enable investigation of whether dark energy properties are the same in different directions on the sky. Cosmic microwave background observations strongly restrict any dynamical effects from anisotropy, in an integrated sense. For more local constraints we compute limits from simulated distance measurements for various distributions of survey fields in a Bianchi I anisotropic universe. We then consider the effects of fitting for line of sight properties where isotropic dynamics is assumed (testing the accuracy through simulations) and compare sensitivities of obse"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.8221","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":"2026-05-18T03:34:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xd15wQaCxBIPfAzrihbXS1VYN2tWUoe9XCen3gnD0tJZHw0C3eHXJnNcw1xQWKMUK7p88OmjbVcAcmAEY3FjBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T01:32:18.481308Z"},"content_sha256":"5fe1f3c0b2ccab8cf8f604e7e7e17008f0cfb964e157d7c3a220751c034f9f40","schema_version":"1.0","event_id":"sha256:5fe1f3c0b2ccab8cf8f604e7e7e17008f0cfb964e157d7c3a220751c034f9f40"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SFUSLF4ERVNXOGUENOFXVO5S44/bundle.json","state_url":"https://pith.science/pith/SFUSLF4ERVNXOGUENOFXVO5S44/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SFUSLF4ERVNXOGUENOFXVO5S44/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":"2026-06-01T01:32:18Z","links":{"resolver":"https://pith.science/pith/SFUSLF4ERVNXOGUENOFXVO5S44","bundle":"https://pith.science/pith/SFUSLF4ERVNXOGUENOFXVO5S44/bundle.json","state":"https://pith.science/pith/SFUSLF4ERVNXOGUENOFXVO5S44/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SFUSLF4ERVNXOGUENOFXVO5S44/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:SFUSLF4ERVNXOGUENOFXVO5S44","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":"28277efe9e3a39d629fd245368afeb0e1aa7eb132dc326b64a76858b406aef72","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-31T02:59:16Z","title_canon_sha256":"af5122b6777e999c7a220555565651ddbe5a74b1fe97fb4571247f00d9b4e0cf"},"schema_version":"1.0","source":{"id":"1210.8221","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.8221","created_at":"2026-05-18T03:34:37Z"},{"alias_kind":"arxiv_version","alias_value":"1210.8221v2","created_at":"2026-05-18T03:34:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.8221","created_at":"2026-05-18T03:34:37Z"},{"alias_kind":"pith_short_12","alias_value":"SFUSLF4ERVNX","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"SFUSLF4ERVNXOGUE","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"SFUSLF4E","created_at":"2026-05-18T12:27:20Z"}],"graph_snapshots":[{"event_id":"sha256:5fe1f3c0b2ccab8cf8f604e7e7e17008f0cfb964e157d7c3a220751c034f9f40","target":"graph","created_at":"2026-05-18T03:34:37Z","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":"Wide area cosmological surveys enable investigation of whether dark energy properties are the same in different directions on the sky. Cosmic microwave background observations strongly restrict any dynamical effects from anisotropy, in an integrated sense. For more local constraints we compute limits from simulated distance measurements for various distributions of survey fields in a Bianchi I anisotropic universe. We then consider the effects of fitting for line of sight properties where isotropic dynamics is assumed (testing the accuracy through simulations) and compare sensitivities of obse","authors_text":"Eric V. Linder, Stephen A. Appleby","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-31T02:59:16Z","title":"Probing Dark Energy Anisotropy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.8221","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":"sha256:2badc3f0c24fc284cc7448a32fd7081528b5f14fa8820dcf6f936429691fb80d","target":"record","created_at":"2026-05-18T03:34:37Z","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":"28277efe9e3a39d629fd245368afeb0e1aa7eb132dc326b64a76858b406aef72","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-31T02:59:16Z","title_canon_sha256":"af5122b6777e999c7a220555565651ddbe5a74b1fe97fb4571247f00d9b4e0cf"},"schema_version":"1.0","source":{"id":"1210.8221","kind":"arxiv","version":2}},"canonical_sha256":"91692597848d5b771a846b8b7abbb2e73f51ac50123d4bbceb4a5ebae98ccfc8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"91692597848d5b771a846b8b7abbb2e73f51ac50123d4bbceb4a5ebae98ccfc8","first_computed_at":"2026-05-18T03:34:37.839390Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:34:37.839390Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NnQDjbvXLSFerplMN8qe2l2M8AjzOvemfOEStwDSva4+fHkbJGMY3HhCoJoZ63uP4zfmLW989LTOP7zYA2g7AA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:34:37.840055Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.8221","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2badc3f0c24fc284cc7448a32fd7081528b5f14fa8820dcf6f936429691fb80d","sha256:5fe1f3c0b2ccab8cf8f604e7e7e17008f0cfb964e157d7c3a220751c034f9f40"],"state_sha256":"e0e75f868ce6bec04c599b11ae1b233d6b2fe13fc7142f8eaa7bfa85c631a121"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8bpyADsKq7kB8I34fZGubMh8az+DlO1rI7Zh94NKoM1FROfxKd/ffS2fL+FKx6oi00gtxFqAv4uYIuTR6CocBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T01:32:18.484731Z","bundle_sha256":"4c93beb99740c4ef169f6acd8e9640ca8d8463afa2acaece2c21810baeab7f9a"}}