{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:FUTMHTURS5JBPORCQJJM7IJXWE","short_pith_number":"pith:FUTMHTUR","canonical_record":{"source":{"id":"1104.1565","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-04-08T12:52:08Z","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"title_canon_sha256":"82563eea7633d6615a280ed71561ec8eb0760c24cd6796a55e5b128abb21cde5","abstract_canon_sha256":"934b0a690bffeaaae62fb078c37fb82eed7ca20bd817ec1eadcd5b91530034d1"},"schema_version":"1.0"},"canonical_sha256":"2d26c3ce91975217ba228252cfa137b12c20d5defaa7f7ed0a0e6aa8b9bfaacf","source":{"kind":"arxiv","id":"1104.1565","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.1565","created_at":"2026-05-18T04:21:21Z"},{"alias_kind":"arxiv_version","alias_value":"1104.1565v1","created_at":"2026-05-18T04:21:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.1565","created_at":"2026-05-18T04:21:21Z"},{"alias_kind":"pith_short_12","alias_value":"FUTMHTURS5JB","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"FUTMHTURS5JBPORC","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"FUTMHTUR","created_at":"2026-05-18T12:26:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:FUTMHTURS5JBPORCQJJM7IJXWE","target":"record","payload":{"canonical_record":{"source":{"id":"1104.1565","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-04-08T12:52:08Z","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"title_canon_sha256":"82563eea7633d6615a280ed71561ec8eb0760c24cd6796a55e5b128abb21cde5","abstract_canon_sha256":"934b0a690bffeaaae62fb078c37fb82eed7ca20bd817ec1eadcd5b91530034d1"},"schema_version":"1.0"},"canonical_sha256":"2d26c3ce91975217ba228252cfa137b12c20d5defaa7f7ed0a0e6aa8b9bfaacf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:21:21.194413Z","signature_b64":"+q7OX8duMxBq6w9tbTuwo1kS9hxVjq/SZLY+iSZ0FCJLn74LDzG02H69xpqdWVuCQ9mYxGWu20dhp2ZCDID2DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2d26c3ce91975217ba228252cfa137b12c20d5defaa7f7ed0a0e6aa8b9bfaacf","last_reissued_at":"2026-05-18T04:21:21.193948Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:21:21.193948Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1104.1565","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:21:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UUimDlj5q98br7w1/66ULUw3autiGzSB8535FGVeSzvCd+gkr8n0EhN5mIR7sx6EjXRd1GM5yJfJs8TtyOkuCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T18:49:05.479097Z"},"content_sha256":"fc41f572fccebba6604324a205d3be32aa6c81513b7a0199f5dcd25818af8df3","schema_version":"1.0","event_id":"sha256:fc41f572fccebba6604324a205d3be32aa6c81513b7a0199f5dcd25818af8df3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:FUTMHTURS5JBPORCQJJM7IJXWE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observational constraints on assisted k-inflation","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":"Junko Ohashi, Shinji Tsujikawa","submitted_at":"2011-04-08T12:52:08Z","abstract_excerpt":"We study observational constraints on the assisted k-inflation models in which multiple scalar fields join an attractor characterized by an effective single field $\\phi$. This effective single-field system is described by the Lagrangian $P=Xg(Y)$, where $X$ is the kinetic energy of $\\phi$, $\\lambda$ is a constant, and $g$ is an arbitrary function in terms of $Y=X e^{\\lambda \\phi}$. Our analysis covers a wide variety of k-inflation models such as dilatonic ghost condensate, Dirac-Born-Infeld (DBI) field, tachyon, as well as the canonical field with an exponential potential. We place observation"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.1565","kind":"arxiv","version":1},"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":"2026-05-18T04:21:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JVVN4pAKY3iwUy4baD+yWbn/W3r4K8TyGN2UE/R9nPyq5eGaVWpPiN7AMerq1VpzpSOZDTGWZ0D3B6DvmppWDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T18:49:05.479766Z"},"content_sha256":"023e48559d157f2a1728be27b74a4d6d2564da8dfdb306662d5c4354cced8347","schema_version":"1.0","event_id":"sha256:023e48559d157f2a1728be27b74a4d6d2564da8dfdb306662d5c4354cced8347"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FUTMHTURS5JBPORCQJJM7IJXWE/bundle.json","state_url":"https://pith.science/pith/FUTMHTURS5JBPORCQJJM7IJXWE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FUTMHTURS5JBPORCQJJM7IJXWE/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":"2026-05-30T18:49:05Z","links":{"resolver":"https://pith.science/pith/FUTMHTURS5JBPORCQJJM7IJXWE","bundle":"https://pith.science/pith/FUTMHTURS5JBPORCQJJM7IJXWE/bundle.json","state":"https://pith.science/pith/FUTMHTURS5JBPORCQJJM7IJXWE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FUTMHTURS5JBPORCQJJM7IJXWE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:FUTMHTURS5JBPORCQJJM7IJXWE","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":"934b0a690bffeaaae62fb078c37fb82eed7ca20bd817ec1eadcd5b91530034d1","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":"2011-04-08T12:52:08Z","title_canon_sha256":"82563eea7633d6615a280ed71561ec8eb0760c24cd6796a55e5b128abb21cde5"},"schema_version":"1.0","source":{"id":"1104.1565","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.1565","created_at":"2026-05-18T04:21:21Z"},{"alias_kind":"arxiv_version","alias_value":"1104.1565v1","created_at":"2026-05-18T04:21:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.1565","created_at":"2026-05-18T04:21:21Z"},{"alias_kind":"pith_short_12","alias_value":"FUTMHTURS5JB","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"FUTMHTURS5JBPORC","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"FUTMHTUR","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:023e48559d157f2a1728be27b74a4d6d2564da8dfdb306662d5c4354cced8347","target":"graph","created_at":"2026-05-18T04:21:21Z","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 study observational constraints on the assisted k-inflation models in which multiple scalar fields join an attractor characterized by an effective single field $\\phi$. This effective single-field system is described by the Lagrangian $P=Xg(Y)$, where $X$ is the kinetic energy of $\\phi$, $\\lambda$ is a constant, and $g$ is an arbitrary function in terms of $Y=X e^{\\lambda \\phi}$. Our analysis covers a wide variety of k-inflation models such as dilatonic ghost condensate, Dirac-Born-Infeld (DBI) field, tachyon, as well as the canonical field with an exponential potential. We place observation","authors_text":"Junko Ohashi, Shinji Tsujikawa","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":"2011-04-08T12:52:08Z","title":"Observational constraints on assisted k-inflation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.1565","kind":"arxiv","version":1},"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:fc41f572fccebba6604324a205d3be32aa6c81513b7a0199f5dcd25818af8df3","target":"record","created_at":"2026-05-18T04:21:21Z","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":"934b0a690bffeaaae62fb078c37fb82eed7ca20bd817ec1eadcd5b91530034d1","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":"2011-04-08T12:52:08Z","title_canon_sha256":"82563eea7633d6615a280ed71561ec8eb0760c24cd6796a55e5b128abb21cde5"},"schema_version":"1.0","source":{"id":"1104.1565","kind":"arxiv","version":1}},"canonical_sha256":"2d26c3ce91975217ba228252cfa137b12c20d5defaa7f7ed0a0e6aa8b9bfaacf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2d26c3ce91975217ba228252cfa137b12c20d5defaa7f7ed0a0e6aa8b9bfaacf","first_computed_at":"2026-05-18T04:21:21.193948Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:21:21.193948Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+q7OX8duMxBq6w9tbTuwo1kS9hxVjq/SZLY+iSZ0FCJLn74LDzG02H69xpqdWVuCQ9mYxGWu20dhp2ZCDID2DA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:21:21.194413Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.1565","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fc41f572fccebba6604324a205d3be32aa6c81513b7a0199f5dcd25818af8df3","sha256:023e48559d157f2a1728be27b74a4d6d2564da8dfdb306662d5c4354cced8347"],"state_sha256":"d6e99f64d8c3430793a4f289e3ec56ae2cf750ee562c81dccbbd0b8825476b4d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1gaq1KcTGQeNMwvmt23BM210nlr3rg/NWlL7PHhkmkccBACEehXisvWjvjt5xt3+nE+ZhfeMSHTPgtkJSG8WCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T18:49:05.483359Z","bundle_sha256":"59e665b2006ef129dc246e133b95b68e9c343fd00ed3e5ebea49c8f2c1b34842"}}