{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:JZB6VSMKZ77JRYSY2V7OOFYXPN","short_pith_number":"pith:JZB6VSMK","canonical_record":{"source":{"id":"2302.02584","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-02-06T06:40:07Z","cross_cats_sorted":[],"title_canon_sha256":"0d45710b3297114ceb661466070d99929575e7f30e7ec66c71a420eda8131c65","abstract_canon_sha256":"da8b4c35851cec7cafe1a934def2b3f498c5f769a5429a0608df59e2c1f5596c"},"schema_version":"1.0"},"canonical_sha256":"4e43eac98acffe98e258d57ee717177b49eee3b6100c2c2d0d71ce32b9dba022","source":{"kind":"arxiv","id":"2302.02584","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.02584","created_at":"2026-07-05T08:19:33Z"},{"alias_kind":"arxiv_version","alias_value":"2302.02584v2","created_at":"2026-07-05T08:19:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.02584","created_at":"2026-07-05T08:19:33Z"},{"alias_kind":"pith_short_12","alias_value":"JZB6VSMKZ77J","created_at":"2026-07-05T08:19:33Z"},{"alias_kind":"pith_short_16","alias_value":"JZB6VSMKZ77JRYSY","created_at":"2026-07-05T08:19:33Z"},{"alias_kind":"pith_short_8","alias_value":"JZB6VSMK","created_at":"2026-07-05T08:19:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:JZB6VSMKZ77JRYSY2V7OOFYXPN","target":"record","payload":{"canonical_record":{"source":{"id":"2302.02584","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-02-06T06:40:07Z","cross_cats_sorted":[],"title_canon_sha256":"0d45710b3297114ceb661466070d99929575e7f30e7ec66c71a420eda8131c65","abstract_canon_sha256":"da8b4c35851cec7cafe1a934def2b3f498c5f769a5429a0608df59e2c1f5596c"},"schema_version":"1.0"},"canonical_sha256":"4e43eac98acffe98e258d57ee717177b49eee3b6100c2c2d0d71ce32b9dba022","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:19:33.826279Z","signature_b64":"xEHZqCtcKAzlppm1T8xOQbsZLjl6DvwQLXcPecRJgyGx0q8vl109j+G4O/N6SIKDeTMIKrCr32IjxMMz6n3ABw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4e43eac98acffe98e258d57ee717177b49eee3b6100c2c2d0d71ce32b9dba022","last_reissued_at":"2026-07-05T08:19:33.825795Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:19:33.825795Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2302.02584","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":"2026-07-05T08:19:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ex+/S+1ZaEESeQIe+GofTim3vtoySiORN6GXNY64VcseCEw1bpXy52v+y7HujelW79rRG/ulb2+82WGCdxEYDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T17:25:05.029187Z"},"content_sha256":"4a63a6f028705f59fe4622851547b5d089d37186427af0a2e61c0ac368279864","schema_version":"1.0","event_id":"sha256:4a63a6f028705f59fe4622851547b5d089d37186427af0a2e61c0ac368279864"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:JZB6VSMKZ77JRYSY2V7OOFYXPN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Distinguishing cosmological models through quantum signatures of primordial perturbations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Rathul Nath Raveendran, Sumanta Chakraborty","submitted_at":"2023-02-06T06:40:07Z","abstract_excerpt":"We study the evolution of various measures of quantumness of the curvature perturbation by integrating out the inaccessible entropic fluctuations in the multi-field models of inflation. In particular, we discuss the following measures of quantumness, namely purity, entanglement entropy and quantum discord. The models being considered in this work are ones that produce large scale curvature power spectra similar to those produced by single-field models of inflation. More specifically, we consider different multi-field models which generate nearly scale invariant and oscillatory curvature power "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.02584","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/2302.02584/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":"2026-07-05T08:19:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7P+eTO1g/mBfTsrQVTXbBRuzz6RH8gkEwR+59hvbXLTTTun9KsZJn9NDCqjL9RARWqhJqQfrrPEnb0rP7mruAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T17:25:05.030087Z"},"content_sha256":"51869d998b1ea7558ee63aa7c5f17959dd61b64082171ebb20c47c4dc1a6ddbe","schema_version":"1.0","event_id":"sha256:51869d998b1ea7558ee63aa7c5f17959dd61b64082171ebb20c47c4dc1a6ddbe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JZB6VSMKZ77JRYSY2V7OOFYXPN/bundle.json","state_url":"https://pith.science/pith/JZB6VSMKZ77JRYSY2V7OOFYXPN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JZB6VSMKZ77JRYSY2V7OOFYXPN/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":"2026-08-09T17:25:05Z","links":{"resolver":"https://pith.science/pith/JZB6VSMKZ77JRYSY2V7OOFYXPN","bundle":"https://pith.science/pith/JZB6VSMKZ77JRYSY2V7OOFYXPN/bundle.json","state":"https://pith.science/pith/JZB6VSMKZ77JRYSY2V7OOFYXPN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JZB6VSMKZ77JRYSY2V7OOFYXPN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:JZB6VSMKZ77JRYSY2V7OOFYXPN","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":"da8b4c35851cec7cafe1a934def2b3f498c5f769a5429a0608df59e2c1f5596c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-02-06T06:40:07Z","title_canon_sha256":"0d45710b3297114ceb661466070d99929575e7f30e7ec66c71a420eda8131c65"},"schema_version":"1.0","source":{"id":"2302.02584","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.02584","created_at":"2026-07-05T08:19:33Z"},{"alias_kind":"arxiv_version","alias_value":"2302.02584v2","created_at":"2026-07-05T08:19:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.02584","created_at":"2026-07-05T08:19:33Z"},{"alias_kind":"pith_short_12","alias_value":"JZB6VSMKZ77J","created_at":"2026-07-05T08:19:33Z"},{"alias_kind":"pith_short_16","alias_value":"JZB6VSMKZ77JRYSY","created_at":"2026-07-05T08:19:33Z"},{"alias_kind":"pith_short_8","alias_value":"JZB6VSMK","created_at":"2026-07-05T08:19:33Z"}],"graph_snapshots":[{"event_id":"sha256:51869d998b1ea7558ee63aa7c5f17959dd61b64082171ebb20c47c4dc1a6ddbe","target":"graph","created_at":"2026-07-05T08:19:33Z","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/2302.02584/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the evolution of various measures of quantumness of the curvature perturbation by integrating out the inaccessible entropic fluctuations in the multi-field models of inflation. In particular, we discuss the following measures of quantumness, namely purity, entanglement entropy and quantum discord. The models being considered in this work are ones that produce large scale curvature power spectra similar to those produced by single-field models of inflation. More specifically, we consider different multi-field models which generate nearly scale invariant and oscillatory curvature power ","authors_text":"Rathul Nath Raveendran, Sumanta Chakraborty","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-02-06T06:40:07Z","title":"Distinguishing cosmological models through quantum signatures of primordial perturbations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.02584","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":"sha256:4a63a6f028705f59fe4622851547b5d089d37186427af0a2e61c0ac368279864","target":"record","created_at":"2026-07-05T08:19:33Z","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":"da8b4c35851cec7cafe1a934def2b3f498c5f769a5429a0608df59e2c1f5596c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-02-06T06:40:07Z","title_canon_sha256":"0d45710b3297114ceb661466070d99929575e7f30e7ec66c71a420eda8131c65"},"schema_version":"1.0","source":{"id":"2302.02584","kind":"arxiv","version":2}},"canonical_sha256":"4e43eac98acffe98e258d57ee717177b49eee3b6100c2c2d0d71ce32b9dba022","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4e43eac98acffe98e258d57ee717177b49eee3b6100c2c2d0d71ce32b9dba022","first_computed_at":"2026-07-05T08:19:33.825795Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:19:33.825795Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xEHZqCtcKAzlppm1T8xOQbsZLjl6DvwQLXcPecRJgyGx0q8vl109j+G4O/N6SIKDeTMIKrCr32IjxMMz6n3ABw==","signature_status":"signed_v1","signed_at":"2026-07-05T08:19:33.826279Z","signed_message":"canonical_sha256_bytes"},"source_id":"2302.02584","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4a63a6f028705f59fe4622851547b5d089d37186427af0a2e61c0ac368279864","sha256:51869d998b1ea7558ee63aa7c5f17959dd61b64082171ebb20c47c4dc1a6ddbe"],"state_sha256":"1391773c4f69ad2e0386367241228377912fdab1c8200ee385bc45e3b2a4db07"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dP3QzyIdoDf2+OCXwUy33cfc9K4wseOpZ00xnHI1xZb7N3HzFiitXqOw+C5f/vwKPB5DbZWw1u0e+dRMWfi8Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T17:25:05.092343Z","bundle_sha256":"10daa9a938f553e9fecabb094a97033c18190944ca9d2c2ae8e3ce2ffdc48397"}}