{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:GOY33P2SAER5B6XZ7OZOVOBX5F","short_pith_number":"pith:GOY33P2S","canonical_record":{"source":{"id":"1007.4347","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-07-25T19:54:44Z","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"title_canon_sha256":"6b303b0f8a083ab384c22f25beb0ccb5cd44df46a3d3634337943d91bb8bae87","abstract_canon_sha256":"ef0b8118448e157f90f84ab63d3f591a739f635c399248fedcd577bf63fe26ab"},"schema_version":"1.0"},"canonical_sha256":"33b1bdbf520123d0faf9fbb2eab837e97b12a3b5d9caedd154bfd904ded4d7a9","source":{"kind":"arxiv","id":"1007.4347","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1007.4347","created_at":"2026-05-18T02:06:10Z"},{"alias_kind":"arxiv_version","alias_value":"1007.4347v3","created_at":"2026-05-18T02:06:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1007.4347","created_at":"2026-05-18T02:06:10Z"},{"alias_kind":"pith_short_12","alias_value":"GOY33P2SAER5","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"GOY33P2SAER5B6XZ","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"GOY33P2S","created_at":"2026-05-18T12:26:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:GOY33P2SAER5B6XZ7OZOVOBX5F","target":"record","payload":{"canonical_record":{"source":{"id":"1007.4347","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-07-25T19:54:44Z","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"title_canon_sha256":"6b303b0f8a083ab384c22f25beb0ccb5cd44df46a3d3634337943d91bb8bae87","abstract_canon_sha256":"ef0b8118448e157f90f84ab63d3f591a739f635c399248fedcd577bf63fe26ab"},"schema_version":"1.0"},"canonical_sha256":"33b1bdbf520123d0faf9fbb2eab837e97b12a3b5d9caedd154bfd904ded4d7a9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:06:10.688767Z","signature_b64":"oc00KXX6M+NgolOgGr/MJwS2qU8Ba1hZrOmgQt8r9R+ZdrjnMppqK8TSMEgAHZjQobLhXfAL93Rs6H1ji+dcAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"33b1bdbf520123d0faf9fbb2eab837e97b12a3b5d9caedd154bfd904ded4d7a9","last_reissued_at":"2026-05-18T02:06:10.688228Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:06:10.688228Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1007.4347","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:06:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K5JgSj+svxyXt2ox9lIbhckadkCP3f2zEP2+jkxr9Zu3M+21VIUjSLxrUXafGkRNeMFEdQxye9YWMEwgR/MfCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T18:59:05.191667Z"},"content_sha256":"9d26ad37e5ff2aef1298e46504601e93fe19e376e004db8add4e42df14ecee69","schema_version":"1.0","event_id":"sha256:9d26ad37e5ff2aef1298e46504601e93fe19e376e004db8add4e42df14ecee69"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:GOY33P2SAER5B6XZ7OZOVOBX5F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Searching for a Cosmological Preferred Axis: Union2 Data Analysis and Comparison with Other Probes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-ph","hep-th"],"primary_cat":"astro-ph.CO","authors_text":"I. Antoniou, L. Perivolaropoulos (U. of Ioannina)","submitted_at":"2010-07-25T19:54:44Z","abstract_excerpt":"We review, compare and extend recent studies searching for evidence for a preferred cosmological axis. We start from the Union2 SnIa dataset and use the hemisphere comparison method to search for a preferred axis in the data. We find that the hemisphere of maximum accelerating expansion rate is in the direction $(l,b)=({309^\\circ}^{+23^\\circ}_{-3^\\circ}, {18^\\circ}^{+11^\\circ}_{-10^\\circ})$ ($\\omm=0.19$) while the hemisphere of minimum acceleration is in the opposite direction $(l,b)=({129^\\circ}^{+23^\\circ}_{-3^\\circ},{-18^\\circ}^{+10^\\circ}_{-11^\\circ})$ ($\\omm=0.30$). The level of anisotrop"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1007.4347","kind":"arxiv","version":3},"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":"2026-05-18T02:06:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WX0o4Xx4pujSLWC9DFQVZmh0zdAoMG/nXZECv5xW8NXnWvtyA1DynSfrlqarTq4QadzraBZTprM4bi6wxQKkCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T18:59:05.192350Z"},"content_sha256":"d044d62b53fb900a0a9ceeeab7e7e283f876ee98567ec22ce4dabdc6b269bc49","schema_version":"1.0","event_id":"sha256:d044d62b53fb900a0a9ceeeab7e7e283f876ee98567ec22ce4dabdc6b269bc49"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GOY33P2SAER5B6XZ7OZOVOBX5F/bundle.json","state_url":"https://pith.science/pith/GOY33P2SAER5B6XZ7OZOVOBX5F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GOY33P2SAER5B6XZ7OZOVOBX5F/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":"2026-05-26T18:59:05Z","links":{"resolver":"https://pith.science/pith/GOY33P2SAER5B6XZ7OZOVOBX5F","bundle":"https://pith.science/pith/GOY33P2SAER5B6XZ7OZOVOBX5F/bundle.json","state":"https://pith.science/pith/GOY33P2SAER5B6XZ7OZOVOBX5F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GOY33P2SAER5B6XZ7OZOVOBX5F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:GOY33P2SAER5B6XZ7OZOVOBX5F","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":"ef0b8118448e157f90f84ab63d3f591a739f635c399248fedcd577bf63fe26ab","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-07-25T19:54:44Z","title_canon_sha256":"6b303b0f8a083ab384c22f25beb0ccb5cd44df46a3d3634337943d91bb8bae87"},"schema_version":"1.0","source":{"id":"1007.4347","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1007.4347","created_at":"2026-05-18T02:06:10Z"},{"alias_kind":"arxiv_version","alias_value":"1007.4347v3","created_at":"2026-05-18T02:06:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1007.4347","created_at":"2026-05-18T02:06:10Z"},{"alias_kind":"pith_short_12","alias_value":"GOY33P2SAER5","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"GOY33P2SAER5B6XZ","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"GOY33P2S","created_at":"2026-05-18T12:26:07Z"}],"graph_snapshots":[{"event_id":"sha256:d044d62b53fb900a0a9ceeeab7e7e283f876ee98567ec22ce4dabdc6b269bc49","target":"graph","created_at":"2026-05-18T02:06:10Z","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 review, compare and extend recent studies searching for evidence for a preferred cosmological axis. We start from the Union2 SnIa dataset and use the hemisphere comparison method to search for a preferred axis in the data. We find that the hemisphere of maximum accelerating expansion rate is in the direction $(l,b)=({309^\\circ}^{+23^\\circ}_{-3^\\circ}, {18^\\circ}^{+11^\\circ}_{-10^\\circ})$ ($\\omm=0.19$) while the hemisphere of minimum acceleration is in the opposite direction $(l,b)=({129^\\circ}^{+23^\\circ}_{-3^\\circ},{-18^\\circ}^{+10^\\circ}_{-11^\\circ})$ ($\\omm=0.30$). The level of anisotrop","authors_text":"I. Antoniou, L. Perivolaropoulos (U. of Ioannina)","cross_cats":["gr-qc","hep-ph","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-07-25T19:54:44Z","title":"Searching for a Cosmological Preferred Axis: Union2 Data Analysis and Comparison with Other Probes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1007.4347","kind":"arxiv","version":3},"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":"sha256:9d26ad37e5ff2aef1298e46504601e93fe19e376e004db8add4e42df14ecee69","target":"record","created_at":"2026-05-18T02:06:10Z","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":"ef0b8118448e157f90f84ab63d3f591a739f635c399248fedcd577bf63fe26ab","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-07-25T19:54:44Z","title_canon_sha256":"6b303b0f8a083ab384c22f25beb0ccb5cd44df46a3d3634337943d91bb8bae87"},"schema_version":"1.0","source":{"id":"1007.4347","kind":"arxiv","version":3}},"canonical_sha256":"33b1bdbf520123d0faf9fbb2eab837e97b12a3b5d9caedd154bfd904ded4d7a9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"33b1bdbf520123d0faf9fbb2eab837e97b12a3b5d9caedd154bfd904ded4d7a9","first_computed_at":"2026-05-18T02:06:10.688228Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:06:10.688228Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oc00KXX6M+NgolOgGr/MJwS2qU8Ba1hZrOmgQt8r9R+ZdrjnMppqK8TSMEgAHZjQobLhXfAL93Rs6H1ji+dcAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:06:10.688767Z","signed_message":"canonical_sha256_bytes"},"source_id":"1007.4347","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9d26ad37e5ff2aef1298e46504601e93fe19e376e004db8add4e42df14ecee69","sha256:d044d62b53fb900a0a9ceeeab7e7e283f876ee98567ec22ce4dabdc6b269bc49"],"state_sha256":"a7d0891a9b20cc646acdb477f0c9526bd811e6f1d1c2c5d2081086ac77dfc584"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XDsrt83BT9YUiVJSCFHiGUZaa4HWN7u/VEra9qMPzy7EGMol12oCunsxEFDcnxKLLwILJ1NNHHXa/U+Ni8biDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T18:59:05.195938Z","bundle_sha256":"9df062e05af762fa76715c0216dd03ca5a73d4b43111e045572b31da23c51702"}}