{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:KJD4XC5RAFCVXO3EGDOWVSUFGE","short_pith_number":"pith:KJD4XC5R","schema_version":"1.0","canonical_sha256":"5247cb8bb101455bbb6430dd6aca85311246927fa9f109fd987b18886d360759","source":{"kind":"arxiv","id":"1710.00759","version":1},"attestation_state":"computed","paper":{"title":"Constraining Planck scale physics with CMB and Reionization Optical Depth","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"astro-ph.CO","authors_text":"Brajesh Gupt","submitted_at":"2017-10-02T16:27:22Z","abstract_excerpt":"We present proof of principle for a two way interplay between physics at very early Universe and late time observations. We find a relation between primordial mechanisms responsible for large scale power suppression in the primordial power spectrum and the value of reionization optical depth $\\tau$. Such mechanisms can affect the estimation of $\\tau$. We show that using future measurements of $\\tau$, one can obtain constraints on the pre-inflationary dynamics, providing a new window on the physics of the very early Universe. Furthermore, the new, re-estimated $\\tau$ can potentially resolve mod"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1710.00759","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-10-02T16:27:22Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"08e68be9e3294bb6e5fda3af17f1637f77651edcab2210b39a24ba768ed7b126","abstract_canon_sha256":"3fbc2dd3b8444182fa898716bdb12f59cf600b6ddd34465684023b9e84c2051f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:33:47.740945Z","signature_b64":"U8TY71iftaHvW9z8cj6yK9p8sxELxGGEmyVs9rbGTcTYix2QuNfJg/k/N7+Yi8Z/9QuOk6387Y6Vk9vzuxDRAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5247cb8bb101455bbb6430dd6aca85311246927fa9f109fd987b18886d360759","last_reissued_at":"2026-05-18T00:33:47.740482Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:33:47.740482Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Constraining Planck scale physics with CMB and Reionization Optical Depth","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"astro-ph.CO","authors_text":"Brajesh Gupt","submitted_at":"2017-10-02T16:27:22Z","abstract_excerpt":"We present proof of principle for a two way interplay between physics at very early Universe and late time observations. We find a relation between primordial mechanisms responsible for large scale power suppression in the primordial power spectrum and the value of reionization optical depth $\\tau$. Such mechanisms can affect the estimation of $\\tau$. We show that using future measurements of $\\tau$, one can obtain constraints on the pre-inflationary dynamics, providing a new window on the physics of the very early Universe. Furthermore, the new, re-estimated $\\tau$ can potentially resolve mod"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.00759","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":""},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1710.00759","created_at":"2026-05-18T00:33:47.740554+00:00"},{"alias_kind":"arxiv_version","alias_value":"1710.00759v1","created_at":"2026-05-18T00:33:47.740554+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.00759","created_at":"2026-05-18T00:33:47.740554+00:00"},{"alias_kind":"pith_short_12","alias_value":"KJD4XC5RAFCV","created_at":"2026-05-18T12:31:24.725408+00:00"},{"alias_kind":"pith_short_16","alias_value":"KJD4XC5RAFCVXO3E","created_at":"2026-05-18T12:31:24.725408+00:00"},{"alias_kind":"pith_short_8","alias_value":"KJD4XC5R","created_at":"2026-05-18T12:31:24.725408+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/KJD4XC5RAFCVXO3EGDOWVSUFGE","json":"https://pith.science/pith/KJD4XC5RAFCVXO3EGDOWVSUFGE.json","graph_json":"https://pith.science/api/pith-number/KJD4XC5RAFCVXO3EGDOWVSUFGE/graph.json","events_json":"https://pith.science/api/pith-number/KJD4XC5RAFCVXO3EGDOWVSUFGE/events.json","paper":"https://pith.science/paper/KJD4XC5R"},"agent_actions":{"view_html":"https://pith.science/pith/KJD4XC5RAFCVXO3EGDOWVSUFGE","download_json":"https://pith.science/pith/KJD4XC5RAFCVXO3EGDOWVSUFGE.json","view_paper":"https://pith.science/paper/KJD4XC5R","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1710.00759&json=true","fetch_graph":"https://pith.science/api/pith-number/KJD4XC5RAFCVXO3EGDOWVSUFGE/graph.json","fetch_events":"https://pith.science/api/pith-number/KJD4XC5RAFCVXO3EGDOWVSUFGE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KJD4XC5RAFCVXO3EGDOWVSUFGE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KJD4XC5RAFCVXO3EGDOWVSUFGE/action/storage_attestation","attest_author":"https://pith.science/pith/KJD4XC5RAFCVXO3EGDOWVSUFGE/action/author_attestation","sign_citation":"https://pith.science/pith/KJD4XC5RAFCVXO3EGDOWVSUFGE/action/citation_signature","submit_replication":"https://pith.science/pith/KJD4XC5RAFCVXO3EGDOWVSUFGE/action/replication_record"}},"created_at":"2026-05-18T00:33:47.740554+00:00","updated_at":"2026-05-18T00:33:47.740554+00:00"}