{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:4KBIKHOCPG75NFHV35XYFEI6O6","short_pith_number":"pith:4KBIKHOC","canonical_record":{"source":{"id":"1901.01794","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-01-07T13:30:50Z","cross_cats_sorted":["gr-qc","hep-ph"],"title_canon_sha256":"e9045e76ff32761afbf6c95ad6b0919f64cde47a649e790614d09cdaf4a8a095","abstract_canon_sha256":"299fdecee22fdf63a2187b8776a77166f26b862ce86162026929c3d6e82f1c77"},"schema_version":"1.0"},"canonical_sha256":"e282851dc279bfd694f5df6f82911e778edd8051590e6bf8996a0329b02163c7","source":{"kind":"arxiv","id":"1901.01794","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.01794","created_at":"2026-05-17T23:49:39Z"},{"alias_kind":"arxiv_version","alias_value":"1901.01794v3","created_at":"2026-05-17T23:49:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.01794","created_at":"2026-05-17T23:49:39Z"},{"alias_kind":"pith_short_12","alias_value":"4KBIKHOCPG75","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"4KBIKHOCPG75NFHV","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"4KBIKHOC","created_at":"2026-05-18T12:33:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:4KBIKHOCPG75NFHV35XYFEI6O6","target":"record","payload":{"canonical_record":{"source":{"id":"1901.01794","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-01-07T13:30:50Z","cross_cats_sorted":["gr-qc","hep-ph"],"title_canon_sha256":"e9045e76ff32761afbf6c95ad6b0919f64cde47a649e790614d09cdaf4a8a095","abstract_canon_sha256":"299fdecee22fdf63a2187b8776a77166f26b862ce86162026929c3d6e82f1c77"},"schema_version":"1.0"},"canonical_sha256":"e282851dc279bfd694f5df6f82911e778edd8051590e6bf8996a0329b02163c7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:49:39.742027Z","signature_b64":"lQYrzDDwNGBMJHxR4XM0IiDMNkAzCFWXYmxpNjHYOy4EQsDCclKTThVJYRqSSJP0tcgN8tWZUMDNT6tiAFv+Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e282851dc279bfd694f5df6f82911e778edd8051590e6bf8996a0329b02163c7","last_reissued_at":"2026-05-17T23:49:39.741338Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:49:39.741338Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.01794","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":"2026-05-17T23:49:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hfP+dKU/thcGChAULt/YyowMWrZKApXUEKYf1yFHEBrikX3tAeH8KlxLj5dSAiRFN5kLPxg/il1EX45NGKyWDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T01:29:58.387102Z"},"content_sha256":"ea0e20b87b4af149e21263f14287da53cb3c36a28f35c579af207ac4634d4b3e","schema_version":"1.0","event_id":"sha256:ea0e20b87b4af149e21263f14287da53cb3c36a28f35c579af207ac4634d4b3e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:4KBIKHOCPG75NFHV35XYFEI6O6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Minimal Higgs inflation with an $R^2$ term in Palatini gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Tommi Tenkanen","submitted_at":"2019-01-07T13:30:50Z","abstract_excerpt":"It has recently been suggested that the Standard Model Higgs boson could act as the inflaton while minimally coupled to gravity - given that the gravity sector is extended with an $\\alpha R^2$ term and the underlying theory of gravity is of Palatini, rather than metric, type. In this paper, we revisit the idea and correct some shortcomings in earlier studies. We find that in this setup the Higgs can indeed act as the inflaton and that the tree-level predictions of the model for the spectral index and the tensor-to-scalar ratio are $n_s\\simeq 0.941$, $r\\simeq 0.3/(1+10^{-8}\\alpha)$, respectivel"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.01794","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":"2026-05-17T23:49:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xogWKM0Gv4t8CbpHxwAVLVxpHOvMx7jHaPkOBL91nWAb3UQLA+5ciuhQ5Ll+m4NE6sjUD27ODyTWqpKpNE04DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T01:29:58.387496Z"},"content_sha256":"286d10048c5481ddb6ef0f05f449a8237f9e602285257bf8cfb894f5f37e64bf","schema_version":"1.0","event_id":"sha256:286d10048c5481ddb6ef0f05f449a8237f9e602285257bf8cfb894f5f37e64bf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4KBIKHOCPG75NFHV35XYFEI6O6/bundle.json","state_url":"https://pith.science/pith/4KBIKHOCPG75NFHV35XYFEI6O6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4KBIKHOCPG75NFHV35XYFEI6O6/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":"2026-08-05T01:29:58Z","links":{"resolver":"https://pith.science/pith/4KBIKHOCPG75NFHV35XYFEI6O6","bundle":"https://pith.science/pith/4KBIKHOCPG75NFHV35XYFEI6O6/bundle.json","state":"https://pith.science/pith/4KBIKHOCPG75NFHV35XYFEI6O6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4KBIKHOCPG75NFHV35XYFEI6O6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:4KBIKHOCPG75NFHV35XYFEI6O6","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":"299fdecee22fdf63a2187b8776a77166f26b862ce86162026929c3d6e82f1c77","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-01-07T13:30:50Z","title_canon_sha256":"e9045e76ff32761afbf6c95ad6b0919f64cde47a649e790614d09cdaf4a8a095"},"schema_version":"1.0","source":{"id":"1901.01794","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.01794","created_at":"2026-05-17T23:49:39Z"},{"alias_kind":"arxiv_version","alias_value":"1901.01794v3","created_at":"2026-05-17T23:49:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.01794","created_at":"2026-05-17T23:49:39Z"},{"alias_kind":"pith_short_12","alias_value":"4KBIKHOCPG75","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"4KBIKHOCPG75NFHV","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"4KBIKHOC","created_at":"2026-05-18T12:33:10Z"}],"graph_snapshots":[{"event_id":"sha256:286d10048c5481ddb6ef0f05f449a8237f9e602285257bf8cfb894f5f37e64bf","target":"graph","created_at":"2026-05-17T23:49:39Z","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":"It has recently been suggested that the Standard Model Higgs boson could act as the inflaton while minimally coupled to gravity - given that the gravity sector is extended with an $\\alpha R^2$ term and the underlying theory of gravity is of Palatini, rather than metric, type. In this paper, we revisit the idea and correct some shortcomings in earlier studies. We find that in this setup the Higgs can indeed act as the inflaton and that the tree-level predictions of the model for the spectral index and the tensor-to-scalar ratio are $n_s\\simeq 0.941$, $r\\simeq 0.3/(1+10^{-8}\\alpha)$, respectivel","authors_text":"Tommi Tenkanen","cross_cats":["gr-qc","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-01-07T13:30:50Z","title":"Minimal Higgs inflation with an $R^2$ term in Palatini gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.01794","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:ea0e20b87b4af149e21263f14287da53cb3c36a28f35c579af207ac4634d4b3e","target":"record","created_at":"2026-05-17T23:49:39Z","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":"299fdecee22fdf63a2187b8776a77166f26b862ce86162026929c3d6e82f1c77","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-01-07T13:30:50Z","title_canon_sha256":"e9045e76ff32761afbf6c95ad6b0919f64cde47a649e790614d09cdaf4a8a095"},"schema_version":"1.0","source":{"id":"1901.01794","kind":"arxiv","version":3}},"canonical_sha256":"e282851dc279bfd694f5df6f82911e778edd8051590e6bf8996a0329b02163c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e282851dc279bfd694f5df6f82911e778edd8051590e6bf8996a0329b02163c7","first_computed_at":"2026-05-17T23:49:39.741338Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:49:39.741338Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lQYrzDDwNGBMJHxR4XM0IiDMNkAzCFWXYmxpNjHYOy4EQsDCclKTThVJYRqSSJP0tcgN8tWZUMDNT6tiAFv+Cw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:49:39.742027Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.01794","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ea0e20b87b4af149e21263f14287da53cb3c36a28f35c579af207ac4634d4b3e","sha256:286d10048c5481ddb6ef0f05f449a8237f9e602285257bf8cfb894f5f37e64bf"],"state_sha256":"b77ba7d9918e263a614cde3f2ff1b6524c28cac1d7008a32e2aa27a3d0b070a3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6ppFqU9adungPQa1KGaGe0/Jp3XufO7vRbbeULeaEPpg04JMC8RauYChThpdcV6vd5ZoQwnBUiWJiYkruaucDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T01:29:58.389755Z","bundle_sha256":"05e84d2391de0c6bc740910da8f71ccf81907b4ab29519f86f8ae1f9c8bfd308"}}