{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:IWZE63I2VYGSHT2UG7GN7O6U45","short_pith_number":"pith:IWZE63I2","canonical_record":{"source":{"id":"2108.04193","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-08-09T17:35:22Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"040061451784e47b7526b6905350a7504154c725f68ca8de5676cca6c51cf650","abstract_canon_sha256":"edceb4b2aea88c0f74500b59fdf784e930269688d2b617239967f0c102d6629f"},"schema_version":"1.0"},"canonical_sha256":"45b24f6d1aae0d23cf5437ccdfbbd4e778e37a5abe423c198207b0d8b70b7a37","source":{"kind":"arxiv","id":"2108.04193","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.04193","created_at":"2026-07-05T04:11:48Z"},{"alias_kind":"arxiv_version","alias_value":"2108.04193v2","created_at":"2026-07-05T04:11:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.04193","created_at":"2026-07-05T04:11:48Z"},{"alias_kind":"pith_short_12","alias_value":"IWZE63I2VYGS","created_at":"2026-07-05T04:11:48Z"},{"alias_kind":"pith_short_16","alias_value":"IWZE63I2VYGSHT2U","created_at":"2026-07-05T04:11:48Z"},{"alias_kind":"pith_short_8","alias_value":"IWZE63I2","created_at":"2026-07-05T04:11:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:IWZE63I2VYGSHT2UG7GN7O6U45","target":"record","payload":{"canonical_record":{"source":{"id":"2108.04193","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-08-09T17:35:22Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"040061451784e47b7526b6905350a7504154c725f68ca8de5676cca6c51cf650","abstract_canon_sha256":"edceb4b2aea88c0f74500b59fdf784e930269688d2b617239967f0c102d6629f"},"schema_version":"1.0"},"canonical_sha256":"45b24f6d1aae0d23cf5437ccdfbbd4e778e37a5abe423c198207b0d8b70b7a37","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:11:48.029603Z","signature_b64":"nNiA+qxDRx6wH6zwxEeNujKUTeoEl15612D+HjPX35OGHrt0/oNd6sirqkRa2KpdLHGzwZdIBkYy8wEmWGYQCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"45b24f6d1aae0d23cf5437ccdfbbd4e778e37a5abe423c198207b0d8b70b7a37","last_reissued_at":"2026-07-05T04:11:48.029186Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:11:48.029186Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2108.04193","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":"2026-07-05T04:11:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qKZGEJyfFrKgIPpMWciAklG27cLW0+HR4yzJIjogN4S4HSeAwS3rQttXDR7Wb5u26h3p+8jaLZiLDb1bwnheCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T17:05:15.374366Z"},"content_sha256":"1d8002c77e921f2eeedeee127f11527467467c1e67049870c73a731f6cb5bc87","schema_version":"1.0","event_id":"sha256:1d8002c77e921f2eeedeee127f11527467467c1e67049870c73a731f6cb5bc87"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:IWZE63I2VYGSHT2UG7GN7O6U45","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Accounting for scalar non-Gaussianity in secondary gravitational waves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"astro-ph.CO","authors_text":"H. V. Ragavendra","submitted_at":"2021-08-09T17:35:22Z","abstract_excerpt":"It is well known that enhancement in the primordial scalar perturbations over small scales generates detectable amplitudes of secondary gravitational waves (GWs), by sourcing the tensor perturbations at the second order. These stochastic gravitational waves are expected to carry the imprints of primordial non-Gaussianities. The scalar bispectrum that is typically produced in models of inflation leading to significant secondary GWs is non-trivial and highly scale dependent. In this work, we present a method to account for such general scale dependent scalar bispectrum arising from inflationary "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.04193","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2108.04193/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":"2026-07-05T04:11:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2JTk9K9Bn3AiDKXZMYTSh7Xxdlirf09VuwRVpcuA8LsWBOD4nltXkUUeHJbT0TPfjr5FltNrb2Pr8S22qXRpBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T17:05:15.374853Z"},"content_sha256":"5a550c1fda9b03756aa995938f2ce2b9faedc77843b5b84016c672506c36d0c4","schema_version":"1.0","event_id":"sha256:5a550c1fda9b03756aa995938f2ce2b9faedc77843b5b84016c672506c36d0c4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IWZE63I2VYGSHT2UG7GN7O6U45/bundle.json","state_url":"https://pith.science/pith/IWZE63I2VYGSHT2UG7GN7O6U45/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IWZE63I2VYGSHT2UG7GN7O6U45/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":"2026-08-03T17:05:15Z","links":{"resolver":"https://pith.science/pith/IWZE63I2VYGSHT2UG7GN7O6U45","bundle":"https://pith.science/pith/IWZE63I2VYGSHT2UG7GN7O6U45/bundle.json","state":"https://pith.science/pith/IWZE63I2VYGSHT2UG7GN7O6U45/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IWZE63I2VYGSHT2UG7GN7O6U45/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:IWZE63I2VYGSHT2UG7GN7O6U45","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":"edceb4b2aea88c0f74500b59fdf784e930269688d2b617239967f0c102d6629f","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-08-09T17:35:22Z","title_canon_sha256":"040061451784e47b7526b6905350a7504154c725f68ca8de5676cca6c51cf650"},"schema_version":"1.0","source":{"id":"2108.04193","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.04193","created_at":"2026-07-05T04:11:48Z"},{"alias_kind":"arxiv_version","alias_value":"2108.04193v2","created_at":"2026-07-05T04:11:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.04193","created_at":"2026-07-05T04:11:48Z"},{"alias_kind":"pith_short_12","alias_value":"IWZE63I2VYGS","created_at":"2026-07-05T04:11:48Z"},{"alias_kind":"pith_short_16","alias_value":"IWZE63I2VYGSHT2U","created_at":"2026-07-05T04:11:48Z"},{"alias_kind":"pith_short_8","alias_value":"IWZE63I2","created_at":"2026-07-05T04:11:48Z"}],"graph_snapshots":[{"event_id":"sha256:5a550c1fda9b03756aa995938f2ce2b9faedc77843b5b84016c672506c36d0c4","target":"graph","created_at":"2026-07-05T04:11:48Z","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/2108.04193/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"It is well known that enhancement in the primordial scalar perturbations over small scales generates detectable amplitudes of secondary gravitational waves (GWs), by sourcing the tensor perturbations at the second order. These stochastic gravitational waves are expected to carry the imprints of primordial non-Gaussianities. The scalar bispectrum that is typically produced in models of inflation leading to significant secondary GWs is non-trivial and highly scale dependent. In this work, we present a method to account for such general scale dependent scalar bispectrum arising from inflationary ","authors_text":"H. V. Ragavendra","cross_cats":["gr-qc","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-08-09T17:35:22Z","title":"Accounting for scalar non-Gaussianity in secondary gravitational waves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.04193","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":"sha256:1d8002c77e921f2eeedeee127f11527467467c1e67049870c73a731f6cb5bc87","target":"record","created_at":"2026-07-05T04:11:48Z","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":"edceb4b2aea88c0f74500b59fdf784e930269688d2b617239967f0c102d6629f","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-08-09T17:35:22Z","title_canon_sha256":"040061451784e47b7526b6905350a7504154c725f68ca8de5676cca6c51cf650"},"schema_version":"1.0","source":{"id":"2108.04193","kind":"arxiv","version":2}},"canonical_sha256":"45b24f6d1aae0d23cf5437ccdfbbd4e778e37a5abe423c198207b0d8b70b7a37","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"45b24f6d1aae0d23cf5437ccdfbbd4e778e37a5abe423c198207b0d8b70b7a37","first_computed_at":"2026-07-05T04:11:48.029186Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:11:48.029186Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nNiA+qxDRx6wH6zwxEeNujKUTeoEl15612D+HjPX35OGHrt0/oNd6sirqkRa2KpdLHGzwZdIBkYy8wEmWGYQCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:11:48.029603Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.04193","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1d8002c77e921f2eeedeee127f11527467467c1e67049870c73a731f6cb5bc87","sha256:5a550c1fda9b03756aa995938f2ce2b9faedc77843b5b84016c672506c36d0c4"],"state_sha256":"047c3141d804d6bcd678db7935cb8755a8b36ef0150c8cf8aaa1d1628525be59"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zXWcfGAKWBJrBCsBlie39KQk7twW0dAyOrNzkzWdhwLYs9IWAVhSoXFiGrcFXjhYUB+8h7KqC+X+GrmyrzHfBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T17:05:15.378144Z","bundle_sha256":"c5d43bd9572dfd4a7a4457e880e062a687c8dfb42eb5a2ea662cb6a49b3e56f7"}}