{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:A4NE5H7PARPKX2Q23WUB45DRZ6","short_pith_number":"pith:A4NE5H7P","canonical_record":{"source":{"id":"2006.09972","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-06-17T16:34:35Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"7f9496451f5ddf2576d21f919d75da0c6c780df929794c158d7d15bc5f3d2aee","abstract_canon_sha256":"c238f94aea2663dc5f9f6ad2d877be47e37d81ce84dc0e3b65a002c751705ea8"},"schema_version":"1.0"},"canonical_sha256":"071a4e9fef045eabea1adda81e7471cf991f98d6970db7e95b76382499e752b6","source":{"kind":"arxiv","id":"2006.09972","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.09972","created_at":"2026-07-05T01:11:06Z"},{"alias_kind":"arxiv_version","alias_value":"2006.09972v1","created_at":"2026-07-05T01:11:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.09972","created_at":"2026-07-05T01:11:06Z"},{"alias_kind":"pith_short_12","alias_value":"A4NE5H7PARPK","created_at":"2026-07-05T01:11:06Z"},{"alias_kind":"pith_short_16","alias_value":"A4NE5H7PARPKX2Q2","created_at":"2026-07-05T01:11:06Z"},{"alias_kind":"pith_short_8","alias_value":"A4NE5H7P","created_at":"2026-07-05T01:11:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:A4NE5H7PARPKX2Q23WUB45DRZ6","target":"record","payload":{"canonical_record":{"source":{"id":"2006.09972","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-06-17T16:34:35Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"7f9496451f5ddf2576d21f919d75da0c6c780df929794c158d7d15bc5f3d2aee","abstract_canon_sha256":"c238f94aea2663dc5f9f6ad2d877be47e37d81ce84dc0e3b65a002c751705ea8"},"schema_version":"1.0"},"canonical_sha256":"071a4e9fef045eabea1adda81e7471cf991f98d6970db7e95b76382499e752b6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:11:06.862012Z","signature_b64":"AvFt6EZfzJfYTAzayRLaeCVJhch7bU5DC8NpUzEDSuS3ZazDBYENyj+qvejBfWLJx8TByP2tW3GJkrdCGW1gCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"071a4e9fef045eabea1adda81e7471cf991f98d6970db7e95b76382499e752b6","last_reissued_at":"2026-07-05T01:11:06.861659Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:11:06.861659Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2006.09972","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":"2026-07-05T01:11:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dLWjnmS4u0o4W5B5pkHQqTVP2KlpW8i+73gQfFAWp4cJpIaTHPQC3HbxN3jX2CAz8JApWL3p1ViWvdLogV7RDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T19:26:49.934247Z"},"content_sha256":"1d9ea0c548c3792589a3936c2084153301c314c459a83e6c4475073a5d7447dc","schema_version":"1.0","event_id":"sha256:1d9ea0c548c3792589a3936c2084153301c314c459a83e6c4475073a5d7447dc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:A4NE5H7PARPKX2Q23WUB45DRZ6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-frequency Graviton from Inflaton Oscillation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Kazunori Nakayama, Ryusuke Jinno, Yohei Ema","submitted_at":"2020-06-17T16:34:35Z","abstract_excerpt":"We point out that there is a high-frequency tail of the stochastic inflationary gravitational wave background that scales as $f^{-1/2}$ with frequency $f$. This contribution comes from the graviton vacuum fluctuation amplified by the inflaton coherent oscillation during the reheating stage. It contains information on inflaton properties such as the inflaton mass as well as the thermal history of the early Universe."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.09972","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2006.09972/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T01:11:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HTkYOePWYtpWbVD7DIGJScjBw5KT6QQLVbds5AtMLRblg29q083IWR6V/rq91SPnL1kOf6MI8YVxFhpGT3YqBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T19:26:49.934869Z"},"content_sha256":"6a1e6d5ed366f636d89c121453516c357250c4a49253c8f920a7fa656f1d246e","schema_version":"1.0","event_id":"sha256:6a1e6d5ed366f636d89c121453516c357250c4a49253c8f920a7fa656f1d246e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A4NE5H7PARPKX2Q23WUB45DRZ6/bundle.json","state_url":"https://pith.science/pith/A4NE5H7PARPKX2Q23WUB45DRZ6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A4NE5H7PARPKX2Q23WUB45DRZ6/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":"2026-08-04T19:26:49Z","links":{"resolver":"https://pith.science/pith/A4NE5H7PARPKX2Q23WUB45DRZ6","bundle":"https://pith.science/pith/A4NE5H7PARPKX2Q23WUB45DRZ6/bundle.json","state":"https://pith.science/pith/A4NE5H7PARPKX2Q23WUB45DRZ6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A4NE5H7PARPKX2Q23WUB45DRZ6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:A4NE5H7PARPKX2Q23WUB45DRZ6","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":"c238f94aea2663dc5f9f6ad2d877be47e37d81ce84dc0e3b65a002c751705ea8","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-06-17T16:34:35Z","title_canon_sha256":"7f9496451f5ddf2576d21f919d75da0c6c780df929794c158d7d15bc5f3d2aee"},"schema_version":"1.0","source":{"id":"2006.09972","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.09972","created_at":"2026-07-05T01:11:06Z"},{"alias_kind":"arxiv_version","alias_value":"2006.09972v1","created_at":"2026-07-05T01:11:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.09972","created_at":"2026-07-05T01:11:06Z"},{"alias_kind":"pith_short_12","alias_value":"A4NE5H7PARPK","created_at":"2026-07-05T01:11:06Z"},{"alias_kind":"pith_short_16","alias_value":"A4NE5H7PARPKX2Q2","created_at":"2026-07-05T01:11:06Z"},{"alias_kind":"pith_short_8","alias_value":"A4NE5H7P","created_at":"2026-07-05T01:11:06Z"}],"graph_snapshots":[{"event_id":"sha256:6a1e6d5ed366f636d89c121453516c357250c4a49253c8f920a7fa656f1d246e","target":"graph","created_at":"2026-07-05T01:11:06Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2006.09972/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We point out that there is a high-frequency tail of the stochastic inflationary gravitational wave background that scales as $f^{-1/2}$ with frequency $f$. This contribution comes from the graviton vacuum fluctuation amplified by the inflaton coherent oscillation during the reheating stage. It contains information on inflaton properties such as the inflaton mass as well as the thermal history of the early Universe.","authors_text":"Kazunori Nakayama, Ryusuke Jinno, Yohei Ema","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-06-17T16:34:35Z","title":"High-frequency Graviton from Inflaton Oscillation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.09972","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":"sha256:1d9ea0c548c3792589a3936c2084153301c314c459a83e6c4475073a5d7447dc","target":"record","created_at":"2026-07-05T01:11:06Z","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":"c238f94aea2663dc5f9f6ad2d877be47e37d81ce84dc0e3b65a002c751705ea8","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-06-17T16:34:35Z","title_canon_sha256":"7f9496451f5ddf2576d21f919d75da0c6c780df929794c158d7d15bc5f3d2aee"},"schema_version":"1.0","source":{"id":"2006.09972","kind":"arxiv","version":1}},"canonical_sha256":"071a4e9fef045eabea1adda81e7471cf991f98d6970db7e95b76382499e752b6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"071a4e9fef045eabea1adda81e7471cf991f98d6970db7e95b76382499e752b6","first_computed_at":"2026-07-05T01:11:06.861659Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:11:06.861659Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AvFt6EZfzJfYTAzayRLaeCVJhch7bU5DC8NpUzEDSuS3ZazDBYENyj+qvejBfWLJx8TByP2tW3GJkrdCGW1gCw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:11:06.862012Z","signed_message":"canonical_sha256_bytes"},"source_id":"2006.09972","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1d9ea0c548c3792589a3936c2084153301c314c459a83e6c4475073a5d7447dc","sha256:6a1e6d5ed366f636d89c121453516c357250c4a49253c8f920a7fa656f1d246e"],"state_sha256":"ec2c10b822b5f1bf5d0c58fb78d00b59e0299a94ff385fbfe666dc256dced09f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SkqBhHokLuIMwB7gZcoiBDd4P4yHYYTmi92U0bb2wT8NK9fayvOeiBihAuWVCGKqudezdptqIjGb5FTqChqwCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T19:26:49.944162Z","bundle_sha256":"c1efbb99c73da8ac746b71c031d625a6aae0a812df5c4590da81d97d4859b619"}}