{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:JMFQ7LRTMC6UFY3KSH3KKGK6WE","short_pith_number":"pith:JMFQ7LRT","canonical_record":{"source":{"id":"1506.02213","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-06-07T02:54:28Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"cab6b3db3dec8b695be002f36e537d13b63cb2714f8681da431346e1f6bb481b","abstract_canon_sha256":"6e5c6fa27f9f0542c4da0378c00a543a83da8e54f41635e91a35bada277dcad2"},"schema_version":"1.0"},"canonical_sha256":"4b0b0fae3360bd42e36a91f6a5195eb129eb42fa8a23d05a7c8fe333835e534a","source":{"kind":"arxiv","id":"1506.02213","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.02213","created_at":"2026-05-18T01:35:47Z"},{"alias_kind":"arxiv_version","alias_value":"1506.02213v1","created_at":"2026-05-18T01:35:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.02213","created_at":"2026-05-18T01:35:47Z"},{"alias_kind":"pith_short_12","alias_value":"JMFQ7LRTMC6U","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"JMFQ7LRTMC6UFY3K","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"JMFQ7LRT","created_at":"2026-05-18T12:29:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:JMFQ7LRTMC6UFY3KSH3KKGK6WE","target":"record","payload":{"canonical_record":{"source":{"id":"1506.02213","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-06-07T02:54:28Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"cab6b3db3dec8b695be002f36e537d13b63cb2714f8681da431346e1f6bb481b","abstract_canon_sha256":"6e5c6fa27f9f0542c4da0378c00a543a83da8e54f41635e91a35bada277dcad2"},"schema_version":"1.0"},"canonical_sha256":"4b0b0fae3360bd42e36a91f6a5195eb129eb42fa8a23d05a7c8fe333835e534a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:47.266963Z","signature_b64":"xUyvzi3+Mgrtlj9nNz53pz4AyeTz5ScRmZhFaUOK0kySCVWJPvqklp0E9gRfp+LarxBJk+W9OUF65uD4hzG7BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4b0b0fae3360bd42e36a91f6a5195eb129eb42fa8a23d05a7c8fe333835e534a","last_reissued_at":"2026-05-18T01:35:47.266210Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:47.266210Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1506.02213","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":"2026-05-18T01:35:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5zNM0s7UjRJDJ6iu7wEvbqL4Duy3/i9YcOYqxeDYNrMDz783240eddq/ZfyM6YHINftLUFk/OaH0AOc1bEv2AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T20:16:23.183629Z"},"content_sha256":"20c0ace07a781081948f5a4b47bfa60de51d5c4bd31bbbfb25c79527538ce833","schema_version":"1.0","event_id":"sha256:20c0ace07a781081948f5a4b47bfa60de51d5c4bd31bbbfb25c79527538ce833"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:JMFQ7LRTMC6UFY3KSH3KKGK6WE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Primordial Power Spectra of EiBI Inflation in Strong Gravity Limit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-th"],"primary_cat":"gr-qc","authors_text":"Inyong Cho, Naveen K. Singh","submitted_at":"2015-06-07T02:54:28Z","abstract_excerpt":"We investigate the scalar and the tensor perturbations of the $\\varphi^2$ inflation model in the strong-gravity limit of Eddington-inspired Born-Infeld (EiBI) theory. In order to consider the strong EiBI-gravity effect, we take the value of $\\kappa$ large, where $\\kappa$ is the EiBI theory parameter. The energy density of the Universe at the early stage is very high, and the Universe is in a strong-gravity regime. Therefore, the perturbation feature is not altered from what was investigated earlier. At the attractor inflationary stage, however, the feature is changed in the strong EiBI-gravity"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.02213","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":"2026-05-18T01:35:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YyGBoLh/P//tHdVNyjrzDnqerIL6g1yWtC4TcpbYE1xJWQxd+63JIlghn4EH5ROUY0ONbV/N1JVyz1vc2ty5CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T20:16:23.183996Z"},"content_sha256":"fcda3a6cf49be54640f2b004620222bcb45b279d664581654c550b4a18791dee","schema_version":"1.0","event_id":"sha256:fcda3a6cf49be54640f2b004620222bcb45b279d664581654c550b4a18791dee"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JMFQ7LRTMC6UFY3KSH3KKGK6WE/bundle.json","state_url":"https://pith.science/pith/JMFQ7LRTMC6UFY3KSH3KKGK6WE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JMFQ7LRTMC6UFY3KSH3KKGK6WE/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":"2026-06-01T20:16:23Z","links":{"resolver":"https://pith.science/pith/JMFQ7LRTMC6UFY3KSH3KKGK6WE","bundle":"https://pith.science/pith/JMFQ7LRTMC6UFY3KSH3KKGK6WE/bundle.json","state":"https://pith.science/pith/JMFQ7LRTMC6UFY3KSH3KKGK6WE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JMFQ7LRTMC6UFY3KSH3KKGK6WE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:JMFQ7LRTMC6UFY3KSH3KKGK6WE","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":"6e5c6fa27f9f0542c4da0378c00a543a83da8e54f41635e91a35bada277dcad2","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-06-07T02:54:28Z","title_canon_sha256":"cab6b3db3dec8b695be002f36e537d13b63cb2714f8681da431346e1f6bb481b"},"schema_version":"1.0","source":{"id":"1506.02213","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.02213","created_at":"2026-05-18T01:35:47Z"},{"alias_kind":"arxiv_version","alias_value":"1506.02213v1","created_at":"2026-05-18T01:35:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.02213","created_at":"2026-05-18T01:35:47Z"},{"alias_kind":"pith_short_12","alias_value":"JMFQ7LRTMC6U","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"JMFQ7LRTMC6UFY3K","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"JMFQ7LRT","created_at":"2026-05-18T12:29:27Z"}],"graph_snapshots":[{"event_id":"sha256:fcda3a6cf49be54640f2b004620222bcb45b279d664581654c550b4a18791dee","target":"graph","created_at":"2026-05-18T01:35:47Z","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 investigate the scalar and the tensor perturbations of the $\\varphi^2$ inflation model in the strong-gravity limit of Eddington-inspired Born-Infeld (EiBI) theory. In order to consider the strong EiBI-gravity effect, we take the value of $\\kappa$ large, where $\\kappa$ is the EiBI theory parameter. The energy density of the Universe at the early stage is very high, and the Universe is in a strong-gravity regime. Therefore, the perturbation feature is not altered from what was investigated earlier. At the attractor inflationary stage, however, the feature is changed in the strong EiBI-gravity","authors_text":"Inyong Cho, Naveen K. Singh","cross_cats":["astro-ph.CO","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-06-07T02:54:28Z","title":"Primordial Power Spectra of EiBI Inflation in Strong Gravity Limit"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.02213","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":"sha256:20c0ace07a781081948f5a4b47bfa60de51d5c4bd31bbbfb25c79527538ce833","target":"record","created_at":"2026-05-18T01:35:47Z","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":"6e5c6fa27f9f0542c4da0378c00a543a83da8e54f41635e91a35bada277dcad2","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-06-07T02:54:28Z","title_canon_sha256":"cab6b3db3dec8b695be002f36e537d13b63cb2714f8681da431346e1f6bb481b"},"schema_version":"1.0","source":{"id":"1506.02213","kind":"arxiv","version":1}},"canonical_sha256":"4b0b0fae3360bd42e36a91f6a5195eb129eb42fa8a23d05a7c8fe333835e534a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4b0b0fae3360bd42e36a91f6a5195eb129eb42fa8a23d05a7c8fe333835e534a","first_computed_at":"2026-05-18T01:35:47.266210Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:47.266210Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xUyvzi3+Mgrtlj9nNz53pz4AyeTz5ScRmZhFaUOK0kySCVWJPvqklp0E9gRfp+LarxBJk+W9OUF65uD4hzG7BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:47.266963Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.02213","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:20c0ace07a781081948f5a4b47bfa60de51d5c4bd31bbbfb25c79527538ce833","sha256:fcda3a6cf49be54640f2b004620222bcb45b279d664581654c550b4a18791dee"],"state_sha256":"58a691cc1ce82c9f0bb14a5a0d636e0f68a9e677a0a80e77da345147fb5151f2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7+togaQaYlhPcMSvU87KMecP560SFWz/W4QPl2xSHvJW9pGr1Ojs5Gst8Az4jN/1uGSxY8TKYfE0Fdy2tNlzAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T20:16:23.186298Z","bundle_sha256":"9ffbf9b2dd44c18000436c53114b1ebf60bf5eccfb57e9fc4c0da5660ffcbd27"}}