{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:UJPGDO5DH4GYW4XAR5CS2FLCM3","short_pith_number":"pith:UJPGDO5D","canonical_record":{"source":{"id":"1109.4266","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2011-09-20T11:16:49Z","cross_cats_sorted":[],"title_canon_sha256":"42135b8cbb6ecef03bad9cdea7c891752161f4ceff517d62726792f00e6d5f20","abstract_canon_sha256":"55d8fe134892b957574d52a6ad21855d36f2f79a263edffb62d9d1e5aa370527"},"schema_version":"1.0"},"canonical_sha256":"a25e61bba33f0d8b72e08f452d156266eb54e8d6bab5f6ce1ae7dac7a58835c2","source":{"kind":"arxiv","id":"1109.4266","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.4266","created_at":"2026-05-18T04:08:03Z"},{"alias_kind":"arxiv_version","alias_value":"1109.4266v3","created_at":"2026-05-18T04:08:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.4266","created_at":"2026-05-18T04:08:03Z"},{"alias_kind":"pith_short_12","alias_value":"UJPGDO5DH4GY","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"UJPGDO5DH4GYW4XA","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"UJPGDO5D","created_at":"2026-05-18T12:26:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:UJPGDO5DH4GYW4XAR5CS2FLCM3","target":"record","payload":{"canonical_record":{"source":{"id":"1109.4266","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2011-09-20T11:16:49Z","cross_cats_sorted":[],"title_canon_sha256":"42135b8cbb6ecef03bad9cdea7c891752161f4ceff517d62726792f00e6d5f20","abstract_canon_sha256":"55d8fe134892b957574d52a6ad21855d36f2f79a263edffb62d9d1e5aa370527"},"schema_version":"1.0"},"canonical_sha256":"a25e61bba33f0d8b72e08f452d156266eb54e8d6bab5f6ce1ae7dac7a58835c2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:08:03.450761Z","signature_b64":"QALZLCCg6Oz5DkM/1vbd/HmDCiAkuf8xuu15lEv3669Ghw4LV8ou3fKN5HxTiw6KgYun/WAKWXKqeQcjQaAYAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a25e61bba33f0d8b72e08f452d156266eb54e8d6bab5f6ce1ae7dac7a58835c2","last_reissued_at":"2026-05-18T04:08:03.450312Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:08:03.450312Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.4266","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":"2026-05-18T04:08:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NpLnbu0NeHRFLwh9zfvXumoDPfqPmaPIC+fQ0lTC/iU5Q0knso8DtZI3+oloXWTvoAPFM0vKafeBtV0oWBhhAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T05:58:39.667066Z"},"content_sha256":"a1f0bf8ffcfcfcfb17f707604216761faa6e5042f2e42338a2daa48ba06597da","schema_version":"1.0","event_id":"sha256:a1f0bf8ffcfcfcfb17f707604216761faa6e5042f2e42338a2daa48ba06597da"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:UJPGDO5DH4GYW4XAR5CS2FLCM3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gravitational Wave During Slowly Evolving","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Yun-Song Piao","submitted_at":"2011-09-20T11:16:49Z","abstract_excerpt":"The ekpyrotic slow contraction or the slow expansion might be responsible for the adiabatical production of the nearly scale invariant curvature perturbation. However, the tensor perturbation generated is generally strongly blue, which implies that it is negligible on large scale. Thus it has been still thought that the detection of primordial tensor perturbation will rule out the relevant models. Here, we will show a counterexample. We will illustrate that in a model of the slow evolution, due to the rapid change of the gravitational coupling, both the curvature perturbation and the tensor pe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.4266","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":"2026-05-18T04:08:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fkX3KYJRAeHhl8Q/gsWGt07Bpo6ImOHLYEFPFm+pNYmZHMOaujY31FCISEQ/KXiaHme8gqITKl9+eh29MCZqCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T05:58:39.667862Z"},"content_sha256":"20f63cea56d52ceaea979b9072ebdb15f4a6934785ea11df3e4986215cbaa2fb","schema_version":"1.0","event_id":"sha256:20f63cea56d52ceaea979b9072ebdb15f4a6934785ea11df3e4986215cbaa2fb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UJPGDO5DH4GYW4XAR5CS2FLCM3/bundle.json","state_url":"https://pith.science/pith/UJPGDO5DH4GYW4XAR5CS2FLCM3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UJPGDO5DH4GYW4XAR5CS2FLCM3/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":"2026-08-15T05:58:39Z","links":{"resolver":"https://pith.science/pith/UJPGDO5DH4GYW4XAR5CS2FLCM3","bundle":"https://pith.science/pith/UJPGDO5DH4GYW4XAR5CS2FLCM3/bundle.json","state":"https://pith.science/pith/UJPGDO5DH4GYW4XAR5CS2FLCM3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UJPGDO5DH4GYW4XAR5CS2FLCM3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:UJPGDO5DH4GYW4XAR5CS2FLCM3","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":"55d8fe134892b957574d52a6ad21855d36f2f79a263edffb62d9d1e5aa370527","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2011-09-20T11:16:49Z","title_canon_sha256":"42135b8cbb6ecef03bad9cdea7c891752161f4ceff517d62726792f00e6d5f20"},"schema_version":"1.0","source":{"id":"1109.4266","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.4266","created_at":"2026-05-18T04:08:03Z"},{"alias_kind":"arxiv_version","alias_value":"1109.4266v3","created_at":"2026-05-18T04:08:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.4266","created_at":"2026-05-18T04:08:03Z"},{"alias_kind":"pith_short_12","alias_value":"UJPGDO5DH4GY","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"UJPGDO5DH4GYW4XA","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"UJPGDO5D","created_at":"2026-05-18T12:26:42Z"}],"graph_snapshots":[{"event_id":"sha256:20f63cea56d52ceaea979b9072ebdb15f4a6934785ea11df3e4986215cbaa2fb","target":"graph","created_at":"2026-05-18T04:08:03Z","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":"The ekpyrotic slow contraction or the slow expansion might be responsible for the adiabatical production of the nearly scale invariant curvature perturbation. However, the tensor perturbation generated is generally strongly blue, which implies that it is negligible on large scale. Thus it has been still thought that the detection of primordial tensor perturbation will rule out the relevant models. Here, we will show a counterexample. We will illustrate that in a model of the slow evolution, due to the rapid change of the gravitational coupling, both the curvature perturbation and the tensor pe","authors_text":"Yun-Song Piao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2011-09-20T11:16:49Z","title":"Gravitational Wave During Slowly Evolving"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.4266","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:a1f0bf8ffcfcfcfb17f707604216761faa6e5042f2e42338a2daa48ba06597da","target":"record","created_at":"2026-05-18T04:08:03Z","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":"55d8fe134892b957574d52a6ad21855d36f2f79a263edffb62d9d1e5aa370527","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2011-09-20T11:16:49Z","title_canon_sha256":"42135b8cbb6ecef03bad9cdea7c891752161f4ceff517d62726792f00e6d5f20"},"schema_version":"1.0","source":{"id":"1109.4266","kind":"arxiv","version":3}},"canonical_sha256":"a25e61bba33f0d8b72e08f452d156266eb54e8d6bab5f6ce1ae7dac7a58835c2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a25e61bba33f0d8b72e08f452d156266eb54e8d6bab5f6ce1ae7dac7a58835c2","first_computed_at":"2026-05-18T04:08:03.450312Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:08:03.450312Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QALZLCCg6Oz5DkM/1vbd/HmDCiAkuf8xuu15lEv3669Ghw4LV8ou3fKN5HxTiw6KgYun/WAKWXKqeQcjQaAYAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:08:03.450761Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.4266","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a1f0bf8ffcfcfcfb17f707604216761faa6e5042f2e42338a2daa48ba06597da","sha256:20f63cea56d52ceaea979b9072ebdb15f4a6934785ea11df3e4986215cbaa2fb"],"state_sha256":"024aac544fa7c04c377c16d0045ff08a8f65a01e9819b9f8f75e4580f0d64417"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AbryzAUBqSlRmR97nDorkU7IUWiexwsSH9vYwCmMx1ozlJdEgXDK/maWeyz7OItBn9KD7R/ijTjb2uMAJAXNAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T05:58:39.673761Z","bundle_sha256":"c01bb6d6e307dcc04797b97a481a8a50903dea89eb1be6575c9c915e9c13e017"}}