{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:I7PIRWQTCIUVGNL5JJUZQJQSBU","short_pith_number":"pith:I7PIRWQT","canonical_record":{"source":{"id":"1810.12884","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-10-30T17:32:08Z","cross_cats_sorted":["astro-ph.CO","hep-ph","hep-th"],"title_canon_sha256":"8ae4981350dc6dbf83ce96117666e1a22f3ca3408d7ddb6f723def59f40bd426","abstract_canon_sha256":"c1625324bfe30e2931ca67b08066c4dce415eac7b5d797449ff89001047ae062"},"schema_version":"1.0"},"canonical_sha256":"47de88da13122953357d4a699826120d354520f954c4a158686997f0a2042979","source":{"kind":"arxiv","id":"1810.12884","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.12884","created_at":"2026-05-17T23:52:51Z"},{"alias_kind":"arxiv_version","alias_value":"1810.12884v2","created_at":"2026-05-17T23:52:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.12884","created_at":"2026-05-17T23:52:51Z"},{"alias_kind":"pith_short_12","alias_value":"I7PIRWQTCIUV","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"I7PIRWQTCIUVGNL5","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"I7PIRWQT","created_at":"2026-05-18T12:32:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:I7PIRWQTCIUVGNL5JJUZQJQSBU","target":"record","payload":{"canonical_record":{"source":{"id":"1810.12884","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-10-30T17:32:08Z","cross_cats_sorted":["astro-ph.CO","hep-ph","hep-th"],"title_canon_sha256":"8ae4981350dc6dbf83ce96117666e1a22f3ca3408d7ddb6f723def59f40bd426","abstract_canon_sha256":"c1625324bfe30e2931ca67b08066c4dce415eac7b5d797449ff89001047ae062"},"schema_version":"1.0"},"canonical_sha256":"47de88da13122953357d4a699826120d354520f954c4a158686997f0a2042979","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:52:51.738717Z","signature_b64":"tHXg9t3xAvNR6Pc2jx2r1Bgezc/q/kQfSezTR0HID8mgE1UtI8J+9Lyiv8P2JOdNk7ZDknExlkhKyu97757LBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"47de88da13122953357d4a699826120d354520f954c4a158686997f0a2042979","last_reissued_at":"2026-05-17T23:52:51.737966Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:52:51.737966Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.12884","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":"2026-05-17T23:52:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yySgwCc3pCuag61H+5k0i4jA2KnBusVeg8iUrmBUub81BiFjfn3iUd0eNBvwkTeRxw9/jpgttS/7+f1sRf4LDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T15:06:06.356772Z"},"content_sha256":"b3df75702dc1fff7d25e0e1950b8025b6d8ccbad7b5e61adb1d5012cea83368b","schema_version":"1.0","event_id":"sha256:b3df75702dc1fff7d25e0e1950b8025b6d8ccbad7b5e61adb1d5012cea83368b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:I7PIRWQTCIUVGNL5JJUZQJQSBU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nonminimal Coleman--Weinberg Inflation with an $R^2$ term","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-ph","hep-th"],"primary_cat":"gr-qc","authors_text":"Alexandros Karam, Kyriakos Tamvakis, Thomas Pappas","submitted_at":"2018-10-30T17:32:08Z","abstract_excerpt":"We extend the Coleman--Weinberg inflationary model where a scalar field $\\phi$ is non-minimally coupled to gravity with the addition of the $R^2$ term. We express the theory in terms of two scalar fields and going to the Einstein frame we employ the Gildener--Weinberg formalism, compute the one-loop effective potential and essentially reduce the problem to the case of single-field inflation. It turns out that there is only one free parameter, namely, the mixing angle between the scalars. For a wide range of this angle, we compute the inflationary observables which are in agreement with the lat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.12884","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":"2026-05-17T23:52:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8cD67KKEl8GTbviKKL87vpq/vMdp9BF0WuLyTVvJxdQasaDCb47+9otdbUizzRD67cyvng8nUNFijUFwqLftAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T15:06:06.357488Z"},"content_sha256":"601ba1614fc13aefc3358f2e152269fce131b2266a20335d1b8fa04a7d816502","schema_version":"1.0","event_id":"sha256:601ba1614fc13aefc3358f2e152269fce131b2266a20335d1b8fa04a7d816502"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I7PIRWQTCIUVGNL5JJUZQJQSBU/bundle.json","state_url":"https://pith.science/pith/I7PIRWQTCIUVGNL5JJUZQJQSBU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I7PIRWQTCIUVGNL5JJUZQJQSBU/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":"2026-06-11T15:06:06Z","links":{"resolver":"https://pith.science/pith/I7PIRWQTCIUVGNL5JJUZQJQSBU","bundle":"https://pith.science/pith/I7PIRWQTCIUVGNL5JJUZQJQSBU/bundle.json","state":"https://pith.science/pith/I7PIRWQTCIUVGNL5JJUZQJQSBU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I7PIRWQTCIUVGNL5JJUZQJQSBU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:I7PIRWQTCIUVGNL5JJUZQJQSBU","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":"c1625324bfe30e2931ca67b08066c4dce415eac7b5d797449ff89001047ae062","cross_cats_sorted":["astro-ph.CO","hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-10-30T17:32:08Z","title_canon_sha256":"8ae4981350dc6dbf83ce96117666e1a22f3ca3408d7ddb6f723def59f40bd426"},"schema_version":"1.0","source":{"id":"1810.12884","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.12884","created_at":"2026-05-17T23:52:51Z"},{"alias_kind":"arxiv_version","alias_value":"1810.12884v2","created_at":"2026-05-17T23:52:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.12884","created_at":"2026-05-17T23:52:51Z"},{"alias_kind":"pith_short_12","alias_value":"I7PIRWQTCIUV","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"I7PIRWQTCIUVGNL5","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"I7PIRWQT","created_at":"2026-05-18T12:32:28Z"}],"graph_snapshots":[{"event_id":"sha256:601ba1614fc13aefc3358f2e152269fce131b2266a20335d1b8fa04a7d816502","target":"graph","created_at":"2026-05-17T23:52:51Z","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 extend the Coleman--Weinberg inflationary model where a scalar field $\\phi$ is non-minimally coupled to gravity with the addition of the $R^2$ term. We express the theory in terms of two scalar fields and going to the Einstein frame we employ the Gildener--Weinberg formalism, compute the one-loop effective potential and essentially reduce the problem to the case of single-field inflation. It turns out that there is only one free parameter, namely, the mixing angle between the scalars. For a wide range of this angle, we compute the inflationary observables which are in agreement with the lat","authors_text":"Alexandros Karam, Kyriakos Tamvakis, Thomas Pappas","cross_cats":["astro-ph.CO","hep-ph","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-10-30T17:32:08Z","title":"Nonminimal Coleman--Weinberg Inflation with an $R^2$ term"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.12884","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:b3df75702dc1fff7d25e0e1950b8025b6d8ccbad7b5e61adb1d5012cea83368b","target":"record","created_at":"2026-05-17T23:52:51Z","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":"c1625324bfe30e2931ca67b08066c4dce415eac7b5d797449ff89001047ae062","cross_cats_sorted":["astro-ph.CO","hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-10-30T17:32:08Z","title_canon_sha256":"8ae4981350dc6dbf83ce96117666e1a22f3ca3408d7ddb6f723def59f40bd426"},"schema_version":"1.0","source":{"id":"1810.12884","kind":"arxiv","version":2}},"canonical_sha256":"47de88da13122953357d4a699826120d354520f954c4a158686997f0a2042979","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"47de88da13122953357d4a699826120d354520f954c4a158686997f0a2042979","first_computed_at":"2026-05-17T23:52:51.737966Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:52:51.737966Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tHXg9t3xAvNR6Pc2jx2r1Bgezc/q/kQfSezTR0HID8mgE1UtI8J+9Lyiv8P2JOdNk7ZDknExlkhKyu97757LBA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:52:51.738717Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.12884","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b3df75702dc1fff7d25e0e1950b8025b6d8ccbad7b5e61adb1d5012cea83368b","sha256:601ba1614fc13aefc3358f2e152269fce131b2266a20335d1b8fa04a7d816502"],"state_sha256":"3ff7facdff13fddbc687983b9ddce37a6be2d0e0c2b3c2bb0a8e089a27fe093e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EIjoOjwJgTC9yTKkB5vK7zALZawYL0Xsc6zxoWVh0giUk0jYMldCsNaOHKr1NguKINgdAqkOxHOBrLZbA9uHBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T15:06:06.361469Z","bundle_sha256":"d4fb440964669279a4b93990a625553a2c03310e97ebb798e0bbf03e1c69cbee"}}