{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:N6WTSREOPM22WUCQ76FUJXBPO5","short_pith_number":"pith:N6WTSREO","schema_version":"1.0","canonical_sha256":"6fad39448e7b35ab5050ff8b44dc2f77461a891825a2ebae49ae02572e818b29","source":{"kind":"arxiv","id":"1706.04778","version":2},"attestation_state":"computed","paper":{"title":"Gravitational Mechanisms to Self-Tune the Cosmological Constant: Obstructions and Ways Forward","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","gr-qc","hep-ph"],"primary_cat":"hep-th","authors_text":"Antonio Padilla, Florian Niedermann","submitted_at":"2017-06-15T09:01:32Z","abstract_excerpt":"Gravitational models of self-tuning are those in which vacuum energy has no observable effect on spacetime curvature, even though it is a priori unsuppressed below the cut-off. We complement Weinberg's no go theorem by studying field theoretic completions of self-adjustment allowing for broken translations as well as other generalisations, and identify new obstructions. Our analysis uses a very general Kallen-Lehmann spectral representation of the exchange amplitude for conserved sources of energy-momentum and exploits unitarity and Lorentz invariance to show that a transition from self-tuning"},"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":"1706.04778","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-06-15T09:01:32Z","cross_cats_sorted":["astro-ph.CO","gr-qc","hep-ph"],"title_canon_sha256":"dc9efed90975a1ed16ac1e26e46ff71ffd274a7e544d3582dcbe3b7e30942aac","abstract_canon_sha256":"c37053f850943462e384e4cead21377eb26c8dcf587bdda95c6411448bbbf707"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:23:59.034149Z","signature_b64":"TIBhwrFTlVe9CZT/hvIN5qPofEj1+p01YVzuqSSsXSkY54jpGNtdzHgoM+O7pCb1k3tgfHJJOSwCOsZd/qXdDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6fad39448e7b35ab5050ff8b44dc2f77461a891825a2ebae49ae02572e818b29","last_reissued_at":"2026-05-18T00:23:59.033695Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:23:59.033695Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Gravitational Mechanisms to Self-Tune the Cosmological Constant: Obstructions and Ways Forward","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","gr-qc","hep-ph"],"primary_cat":"hep-th","authors_text":"Antonio Padilla, Florian Niedermann","submitted_at":"2017-06-15T09:01:32Z","abstract_excerpt":"Gravitational models of self-tuning are those in which vacuum energy has no observable effect on spacetime curvature, even though it is a priori unsuppressed below the cut-off. We complement Weinberg's no go theorem by studying field theoretic completions of self-adjustment allowing for broken translations as well as other generalisations, and identify new obstructions. Our analysis uses a very general Kallen-Lehmann spectral representation of the exchange amplitude for conserved sources of energy-momentum and exploits unitarity and Lorentz invariance to show that a transition from self-tuning"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.04778","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":""},"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":"1706.04778","created_at":"2026-05-18T00:23:59.033756+00:00"},{"alias_kind":"arxiv_version","alias_value":"1706.04778v2","created_at":"2026-05-18T00:23:59.033756+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.04778","created_at":"2026-05-18T00:23:59.033756+00:00"},{"alias_kind":"pith_short_12","alias_value":"N6WTSREOPM22","created_at":"2026-05-18T12:31:31.346846+00:00"},{"alias_kind":"pith_short_16","alias_value":"N6WTSREOPM22WUCQ","created_at":"2026-05-18T12:31:31.346846+00:00"},{"alias_kind":"pith_short_8","alias_value":"N6WTSREO","created_at":"2026-05-18T12:31:31.346846+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2604.08659","citing_title":"A Lapse in the Cosmological Constant Problem","ref_index":12,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/N6WTSREOPM22WUCQ76FUJXBPO5","json":"https://pith.science/pith/N6WTSREOPM22WUCQ76FUJXBPO5.json","graph_json":"https://pith.science/api/pith-number/N6WTSREOPM22WUCQ76FUJXBPO5/graph.json","events_json":"https://pith.science/api/pith-number/N6WTSREOPM22WUCQ76FUJXBPO5/events.json","paper":"https://pith.science/paper/N6WTSREO"},"agent_actions":{"view_html":"https://pith.science/pith/N6WTSREOPM22WUCQ76FUJXBPO5","download_json":"https://pith.science/pith/N6WTSREOPM22WUCQ76FUJXBPO5.json","view_paper":"https://pith.science/paper/N6WTSREO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1706.04778&json=true","fetch_graph":"https://pith.science/api/pith-number/N6WTSREOPM22WUCQ76FUJXBPO5/graph.json","fetch_events":"https://pith.science/api/pith-number/N6WTSREOPM22WUCQ76FUJXBPO5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/N6WTSREOPM22WUCQ76FUJXBPO5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/N6WTSREOPM22WUCQ76FUJXBPO5/action/storage_attestation","attest_author":"https://pith.science/pith/N6WTSREOPM22WUCQ76FUJXBPO5/action/author_attestation","sign_citation":"https://pith.science/pith/N6WTSREOPM22WUCQ76FUJXBPO5/action/citation_signature","submit_replication":"https://pith.science/pith/N6WTSREOPM22WUCQ76FUJXBPO5/action/replication_record"}},"created_at":"2026-05-18T00:23:59.033756+00:00","updated_at":"2026-05-18T00:23:59.033756+00:00"}