{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:SDMY2VYNUBLPUK6HB7SZDVCP7V","short_pith_number":"pith:SDMY2VYN","canonical_record":{"source":{"id":"1305.3943","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-05-16T21:56:47Z","cross_cats_sorted":["astro-ph.GA","astro-ph.HE","gr-qc"],"title_canon_sha256":"ce9319ad8802e67144f84b31087bdb2a00577e3e7575227b3ec7714cacb349a5","abstract_canon_sha256":"6b770d34ae50b425dc9c1912f0dd627deb512e00fd7cee574e8af92100f0bb46"},"schema_version":"1.0"},"canonical_sha256":"90d98d570da056fa2bc70fe591d44ffd46cbda0381c346e103d7df89468ea814","source":{"kind":"arxiv","id":"1305.3943","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.3943","created_at":"2026-05-18T03:14:40Z"},{"alias_kind":"arxiv_version","alias_value":"1305.3943v2","created_at":"2026-05-18T03:14:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.3943","created_at":"2026-05-18T03:14:40Z"},{"alias_kind":"pith_short_12","alias_value":"SDMY2VYNUBLP","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"SDMY2VYNUBLPUK6H","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"SDMY2VYN","created_at":"2026-05-18T12:27:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:SDMY2VYNUBLPUK6HB7SZDVCP7V","target":"record","payload":{"canonical_record":{"source":{"id":"1305.3943","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-05-16T21:56:47Z","cross_cats_sorted":["astro-ph.GA","astro-ph.HE","gr-qc"],"title_canon_sha256":"ce9319ad8802e67144f84b31087bdb2a00577e3e7575227b3ec7714cacb349a5","abstract_canon_sha256":"6b770d34ae50b425dc9c1912f0dd627deb512e00fd7cee574e8af92100f0bb46"},"schema_version":"1.0"},"canonical_sha256":"90d98d570da056fa2bc70fe591d44ffd46cbda0381c346e103d7df89468ea814","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:14:40.724755Z","signature_b64":"5CUyuIv9FUuxrl8nkDXJNJYEA/WMv0lLAAUtC8tEpgnZKgxd44EgzEmlpxTfEW1KkGDsjyVhf2IuinUppR1SDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"90d98d570da056fa2bc70fe591d44ffd46cbda0381c346e103d7df89468ea814","last_reissued_at":"2026-05-18T03:14:40.724241Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:14:40.724241Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1305.3943","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":"2026-05-18T03:14:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HNHfmw1/bsgzaQ4GSeRY2D7LR5LJtii3U1MLQmo/M121S4JD+JlvkgP5R4MAO1vvZn5r349ZrUcoKJQVfkU5BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T23:18:23.202789Z"},"content_sha256":"bdfabb7983cfd90470c0e897572388614dde672e6348cb1ab756e83d66c44a9e","schema_version":"1.0","event_id":"sha256:bdfabb7983cfd90470c0e897572388614dde672e6348cb1ab756e83d66c44a9e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:SDMY2VYNUBLPUK6HB7SZDVCP7V","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Shared Causal Pasts and Futures of Cosmological Events","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.HE","gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"Andrew S. Friedman, David I. Kaiser, Jason Gallicchio","submitted_at":"2013-05-16T21:56:47Z","abstract_excerpt":"We derive criteria for whether two cosmological events can have a shared causal past or a shared causal future, assuming a Friedmann-Lemaitre-Robertson-Walker universe with best-fit \\Lambda CDM cosmological parameters from the Planck satellite. We further derive criteria for whether either cosmic event could have been in past causal contact with our own worldline since the time of the hot \"big bang\", which we take to be the end of early-universe inflation. We find that pairs of objects such as quasars on opposite sides of the sky with redshifts z >= 3.65 have no shared causal past with each ot"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.3943","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":"2026-05-18T03:14:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d2tvHiGH/Qw0sTzVFQ4e3wKLdMJXiylPNwMFY7K0gXFbupDoXJGIex+f24m6bNOmpfJTK/+gQBBEffvbPQiEDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T23:18:23.203463Z"},"content_sha256":"ba1e2774c155b12ea75b0c20587e97d1dfd6fcd6a4e66a17a53d40f962256053","schema_version":"1.0","event_id":"sha256:ba1e2774c155b12ea75b0c20587e97d1dfd6fcd6a4e66a17a53d40f962256053"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SDMY2VYNUBLPUK6HB7SZDVCP7V/bundle.json","state_url":"https://pith.science/pith/SDMY2VYNUBLPUK6HB7SZDVCP7V/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SDMY2VYNUBLPUK6HB7SZDVCP7V/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":"2026-05-29T23:18:23Z","links":{"resolver":"https://pith.science/pith/SDMY2VYNUBLPUK6HB7SZDVCP7V","bundle":"https://pith.science/pith/SDMY2VYNUBLPUK6HB7SZDVCP7V/bundle.json","state":"https://pith.science/pith/SDMY2VYNUBLPUK6HB7SZDVCP7V/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SDMY2VYNUBLPUK6HB7SZDVCP7V/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:SDMY2VYNUBLPUK6HB7SZDVCP7V","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":"6b770d34ae50b425dc9c1912f0dd627deb512e00fd7cee574e8af92100f0bb46","cross_cats_sorted":["astro-ph.GA","astro-ph.HE","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-05-16T21:56:47Z","title_canon_sha256":"ce9319ad8802e67144f84b31087bdb2a00577e3e7575227b3ec7714cacb349a5"},"schema_version":"1.0","source":{"id":"1305.3943","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.3943","created_at":"2026-05-18T03:14:40Z"},{"alias_kind":"arxiv_version","alias_value":"1305.3943v2","created_at":"2026-05-18T03:14:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.3943","created_at":"2026-05-18T03:14:40Z"},{"alias_kind":"pith_short_12","alias_value":"SDMY2VYNUBLP","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"SDMY2VYNUBLPUK6H","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"SDMY2VYN","created_at":"2026-05-18T12:27:59Z"}],"graph_snapshots":[{"event_id":"sha256:ba1e2774c155b12ea75b0c20587e97d1dfd6fcd6a4e66a17a53d40f962256053","target":"graph","created_at":"2026-05-18T03:14:40Z","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 derive criteria for whether two cosmological events can have a shared causal past or a shared causal future, assuming a Friedmann-Lemaitre-Robertson-Walker universe with best-fit \\Lambda CDM cosmological parameters from the Planck satellite. We further derive criteria for whether either cosmic event could have been in past causal contact with our own worldline since the time of the hot \"big bang\", which we take to be the end of early-universe inflation. We find that pairs of objects such as quasars on opposite sides of the sky with redshifts z >= 3.65 have no shared causal past with each ot","authors_text":"Andrew S. Friedman, David I. Kaiser, Jason Gallicchio","cross_cats":["astro-ph.GA","astro-ph.HE","gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-05-16T21:56:47Z","title":"The Shared Causal Pasts and Futures of Cosmological Events"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.3943","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:bdfabb7983cfd90470c0e897572388614dde672e6348cb1ab756e83d66c44a9e","target":"record","created_at":"2026-05-18T03:14:40Z","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":"6b770d34ae50b425dc9c1912f0dd627deb512e00fd7cee574e8af92100f0bb46","cross_cats_sorted":["astro-ph.GA","astro-ph.HE","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-05-16T21:56:47Z","title_canon_sha256":"ce9319ad8802e67144f84b31087bdb2a00577e3e7575227b3ec7714cacb349a5"},"schema_version":"1.0","source":{"id":"1305.3943","kind":"arxiv","version":2}},"canonical_sha256":"90d98d570da056fa2bc70fe591d44ffd46cbda0381c346e103d7df89468ea814","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"90d98d570da056fa2bc70fe591d44ffd46cbda0381c346e103d7df89468ea814","first_computed_at":"2026-05-18T03:14:40.724241Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:14:40.724241Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5CUyuIv9FUuxrl8nkDXJNJYEA/WMv0lLAAUtC8tEpgnZKgxd44EgzEmlpxTfEW1KkGDsjyVhf2IuinUppR1SDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:14:40.724755Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.3943","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bdfabb7983cfd90470c0e897572388614dde672e6348cb1ab756e83d66c44a9e","sha256:ba1e2774c155b12ea75b0c20587e97d1dfd6fcd6a4e66a17a53d40f962256053"],"state_sha256":"9a8f872fa273c89490f05fb48fa0983af9942d3e43b6f52f849e9398e6271637"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bnSmSzdvvuzP1GhWyIIy6pBEUBDSfxJD6raUscmvyBr5TTwcDVimXy2FQ8OIkCMp3e0zrrC06in2w7Vf0sCPCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T23:18:23.206524Z","bundle_sha256":"b7b8ed5685995a320b9a2a9fec7320f006308890b180837902850c858c6dccb1"}}