{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:C3K3ZK63ZV6HVDWVK4HOFVWGML","short_pith_number":"pith:C3K3ZK63","canonical_record":{"source":{"id":"1504.01373","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-04-03T20:00:20Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"a356198648e416a41f0e2a2ae381f2395ad0b02b1162cd149f048c756683b2d1","abstract_canon_sha256":"82d84f8bf29738c707cf10d836f68898d0609c9f587532d2f47f4a8254274ea3"},"schema_version":"1.0"},"canonical_sha256":"16d5bcabdbcd7c7a8ed5570ee2d6c662d223720f1d6186ce703a65c4ef833cf1","source":{"kind":"arxiv","id":"1504.01373","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.01373","created_at":"2026-05-18T01:26:43Z"},{"alias_kind":"arxiv_version","alias_value":"1504.01373v2","created_at":"2026-05-18T01:26:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.01373","created_at":"2026-05-18T01:26:43Z"},{"alias_kind":"pith_short_12","alias_value":"C3K3ZK63ZV6H","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"C3K3ZK63ZV6HVDWV","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"C3K3ZK63","created_at":"2026-05-18T12:29:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:C3K3ZK63ZV6HVDWVK4HOFVWGML","target":"record","payload":{"canonical_record":{"source":{"id":"1504.01373","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-04-03T20:00:20Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"a356198648e416a41f0e2a2ae381f2395ad0b02b1162cd149f048c756683b2d1","abstract_canon_sha256":"82d84f8bf29738c707cf10d836f68898d0609c9f587532d2f47f4a8254274ea3"},"schema_version":"1.0"},"canonical_sha256":"16d5bcabdbcd7c7a8ed5570ee2d6c662d223720f1d6186ce703a65c4ef833cf1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:26:43.159498Z","signature_b64":"p2uQxr7W/cPNC8Pfp3iVZDTX9uIja0/7r/LV8FDWkEwTzURbwRQRZY6/EwYLFeFdrGElZpcY1/5ihU3m4q3HDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"16d5bcabdbcd7c7a8ed5570ee2d6c662d223720f1d6186ce703a65c4ef833cf1","last_reissued_at":"2026-05-18T01:26:43.158803Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:26:43.158803Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.01373","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":"2026-05-18T01:26:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"srgJsyHcbYF8jQQcYYDc7zZ0kCf61WTJIO8GhEyJD616ckkaX0ygb4DcDQxicrSNqk7ui2jBUNk2lxFGxWH5DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T16:10:40.483066Z"},"content_sha256":"94a45a356b7086d96b21645831fdf46b890879ab43c0f33a084776faf696cf21","schema_version":"1.0","event_id":"sha256:94a45a356b7086d96b21645831fdf46b890879ab43c0f33a084776faf696cf21"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:C3K3ZK63ZV6HVDWVK4HOFVWGML","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Resonant Primordial Gravitational Waves Amplification","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"astro-ph.CO","authors_text":"Chunshan Lin, Misao Sasaki","submitted_at":"2015-04-03T20:00:20Z","abstract_excerpt":"We propose a mechanism to evade the Lyth bound in models of inflation. We minimally extend the conventional single-field inflation model in general relativity (GR) to a theory with non-vanishing graviton mass in the very early universe. The modification primarily affects the tensor perturbation, while the scalar and vector perturbations are the same as the ones in GR with a single scalar field at least at the level of linear perturbation theory. During the reheating stage, the graviton mass oscillates coherently and leads to resonant amplification of the primordial tensor perturbation. After r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.01373","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":"2026-05-18T01:26:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bMv0HlPma92haEwxrjxsIa+1VmSS3QTkB6++7eKbU3t9TwtDNgLxF3PK8v5CQLqX6pakQ47GDcBCb7KJysMlAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T16:10:40.483654Z"},"content_sha256":"5407e36a70e2178ff897dff58050de666a8314a941dd05c3ba5a4857a2fbda57","schema_version":"1.0","event_id":"sha256:5407e36a70e2178ff897dff58050de666a8314a941dd05c3ba5a4857a2fbda57"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C3K3ZK63ZV6HVDWVK4HOFVWGML/bundle.json","state_url":"https://pith.science/pith/C3K3ZK63ZV6HVDWVK4HOFVWGML/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C3K3ZK63ZV6HVDWVK4HOFVWGML/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":"2026-05-27T16:10:40Z","links":{"resolver":"https://pith.science/pith/C3K3ZK63ZV6HVDWVK4HOFVWGML","bundle":"https://pith.science/pith/C3K3ZK63ZV6HVDWVK4HOFVWGML/bundle.json","state":"https://pith.science/pith/C3K3ZK63ZV6HVDWVK4HOFVWGML/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C3K3ZK63ZV6HVDWVK4HOFVWGML/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:C3K3ZK63ZV6HVDWVK4HOFVWGML","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":"82d84f8bf29738c707cf10d836f68898d0609c9f587532d2f47f4a8254274ea3","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-04-03T20:00:20Z","title_canon_sha256":"a356198648e416a41f0e2a2ae381f2395ad0b02b1162cd149f048c756683b2d1"},"schema_version":"1.0","source":{"id":"1504.01373","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.01373","created_at":"2026-05-18T01:26:43Z"},{"alias_kind":"arxiv_version","alias_value":"1504.01373v2","created_at":"2026-05-18T01:26:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.01373","created_at":"2026-05-18T01:26:43Z"},{"alias_kind":"pith_short_12","alias_value":"C3K3ZK63ZV6H","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"C3K3ZK63ZV6HVDWV","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"C3K3ZK63","created_at":"2026-05-18T12:29:14Z"}],"graph_snapshots":[{"event_id":"sha256:5407e36a70e2178ff897dff58050de666a8314a941dd05c3ba5a4857a2fbda57","target":"graph","created_at":"2026-05-18T01:26:43Z","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 propose a mechanism to evade the Lyth bound in models of inflation. We minimally extend the conventional single-field inflation model in general relativity (GR) to a theory with non-vanishing graviton mass in the very early universe. The modification primarily affects the tensor perturbation, while the scalar and vector perturbations are the same as the ones in GR with a single scalar field at least at the level of linear perturbation theory. During the reheating stage, the graviton mass oscillates coherently and leads to resonant amplification of the primordial tensor perturbation. After r","authors_text":"Chunshan Lin, Misao Sasaki","cross_cats":["gr-qc","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-04-03T20:00:20Z","title":"Resonant Primordial Gravitational Waves Amplification"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.01373","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":"sha256:94a45a356b7086d96b21645831fdf46b890879ab43c0f33a084776faf696cf21","target":"record","created_at":"2026-05-18T01:26:43Z","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":"82d84f8bf29738c707cf10d836f68898d0609c9f587532d2f47f4a8254274ea3","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-04-03T20:00:20Z","title_canon_sha256":"a356198648e416a41f0e2a2ae381f2395ad0b02b1162cd149f048c756683b2d1"},"schema_version":"1.0","source":{"id":"1504.01373","kind":"arxiv","version":2}},"canonical_sha256":"16d5bcabdbcd7c7a8ed5570ee2d6c662d223720f1d6186ce703a65c4ef833cf1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"16d5bcabdbcd7c7a8ed5570ee2d6c662d223720f1d6186ce703a65c4ef833cf1","first_computed_at":"2026-05-18T01:26:43.158803Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:26:43.158803Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"p2uQxr7W/cPNC8Pfp3iVZDTX9uIja0/7r/LV8FDWkEwTzURbwRQRZY6/EwYLFeFdrGElZpcY1/5ihU3m4q3HDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:26:43.159498Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.01373","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:94a45a356b7086d96b21645831fdf46b890879ab43c0f33a084776faf696cf21","sha256:5407e36a70e2178ff897dff58050de666a8314a941dd05c3ba5a4857a2fbda57"],"state_sha256":"cfdc4ab27643de7198099cb772809900463fd1f9a92f1b77a2f9e1e76da6afec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E+Z7oimBTB7ikr3/qdygRXpgsGn/CYqOvbwDNiVSnmiO4ixjHlQdsRZKhBGlI4cLNaYEqmRCly8RGtNtdXvdAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T16:10:40.486480Z","bundle_sha256":"a9ae2ee95b24598dc8b68a24dde7f1856ed8b5e1f881278ab07afe134ab870ff"}}