{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:A2ZDPMVPZVBFFJQ5RG6OUWYXLN","short_pith_number":"pith:A2ZDPMVP","canonical_record":{"source":{"id":"1709.04249","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-09-13T10:55:38Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"b1601453e34b22aa2bef167f939d49995315ea0c2dce6e16fd99c338bae7fc7e","abstract_canon_sha256":"655fa5cdeca27f76155e87fe4a89b8499d7617905b5bb158d97435467e4e2a0f"},"schema_version":"1.0"},"canonical_sha256":"06b237b2afcd4252a61d89bcea5b175b46d1dbf13ea4ff4f4f2e281d9867e90b","source":{"kind":"arxiv","id":"1709.04249","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.04249","created_at":"2026-05-17T23:41:01Z"},{"alias_kind":"arxiv_version","alias_value":"1709.04249v2","created_at":"2026-05-17T23:41:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.04249","created_at":"2026-05-17T23:41:01Z"},{"alias_kind":"pith_short_12","alias_value":"A2ZDPMVPZVBF","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"A2ZDPMVPZVBFFJQ5","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"A2ZDPMVP","created_at":"2026-05-18T12:31:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:A2ZDPMVPZVBFFJQ5RG6OUWYXLN","target":"record","payload":{"canonical_record":{"source":{"id":"1709.04249","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-09-13T10:55:38Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"b1601453e34b22aa2bef167f939d49995315ea0c2dce6e16fd99c338bae7fc7e","abstract_canon_sha256":"655fa5cdeca27f76155e87fe4a89b8499d7617905b5bb158d97435467e4e2a0f"},"schema_version":"1.0"},"canonical_sha256":"06b237b2afcd4252a61d89bcea5b175b46d1dbf13ea4ff4f4f2e281d9867e90b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:01.472708Z","signature_b64":"SxAoUSchfxtMkLWL3aDUr0QZmMv6BDq1y+awbngsEwRLb+Xg5uCNRvy3WKy87aalNsQpLrMzpTwmA7e1YXYOBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"06b237b2afcd4252a61d89bcea5b175b46d1dbf13ea4ff4f4f2e281d9867e90b","last_reissued_at":"2026-05-17T23:41:01.472062Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:01.472062Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.04249","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":"2026-05-17T23:41:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qOe1TjsZLYHfKx6YCN7/Mrg4AO1ueIdZyL1lLhghwS22ZC0SUvzqo2I01FvmPE1g4QMTmVnoAhF8LjQnxQaAAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T21:55:55.092909Z"},"content_sha256":"ceca18481211afd0c64b44f1b32d5a7fb620f04ddf4fbb434d016a07a570162f","schema_version":"1.0","event_id":"sha256:ceca18481211afd0c64b44f1b32d5a7fb620f04ddf4fbb434d016a07a570162f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:A2ZDPMVPZVBFFJQ5RG6OUWYXLN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observable traces of non-metricity: new constraints on metric-affine gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"A. Delhom I Latorre, Gonzalo J. Olmo, Michele Ronco","submitted_at":"2017-09-13T10:55:38Z","abstract_excerpt":"Relaxing the Riemannian condition to incorporate geometric quantities such as torsion and non-metricity may allow to explore new physics associated with defects in a hypothetical space-time microstructure. Here we show that non-metricity produces observable effects in quantum fields in the form of 4-fermion contact interactions, thereby allowing us to constrain the scale of non-metricity to be greater than 1 TeV by using results on Bhabha scattering. Our analysis is carried out in the framework of a wide class of theories of gravity in the metric-affine approach. The bound obtained represents "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.04249","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:41:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2hSbMfG33bwuUvcUGuctWG0TsgqTg5uO2YA6/+nTrKo8TcO1nJadMKH+ZJF/rXfpXLWeWtPWTvNHFGocNUlwBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T21:55:55.093290Z"},"content_sha256":"6e85162c680cc57cde81cdd0443ab0c170118979e7cc18b31519ed50075cb97b","schema_version":"1.0","event_id":"sha256:6e85162c680cc57cde81cdd0443ab0c170118979e7cc18b31519ed50075cb97b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A2ZDPMVPZVBFFJQ5RG6OUWYXLN/bundle.json","state_url":"https://pith.science/pith/A2ZDPMVPZVBFFJQ5RG6OUWYXLN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A2ZDPMVPZVBFFJQ5RG6OUWYXLN/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":"2026-06-29T21:55:55Z","links":{"resolver":"https://pith.science/pith/A2ZDPMVPZVBFFJQ5RG6OUWYXLN","bundle":"https://pith.science/pith/A2ZDPMVPZVBFFJQ5RG6OUWYXLN/bundle.json","state":"https://pith.science/pith/A2ZDPMVPZVBFFJQ5RG6OUWYXLN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A2ZDPMVPZVBFFJQ5RG6OUWYXLN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:A2ZDPMVPZVBFFJQ5RG6OUWYXLN","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":"655fa5cdeca27f76155e87fe4a89b8499d7617905b5bb158d97435467e4e2a0f","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-09-13T10:55:38Z","title_canon_sha256":"b1601453e34b22aa2bef167f939d49995315ea0c2dce6e16fd99c338bae7fc7e"},"schema_version":"1.0","source":{"id":"1709.04249","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.04249","created_at":"2026-05-17T23:41:01Z"},{"alias_kind":"arxiv_version","alias_value":"1709.04249v2","created_at":"2026-05-17T23:41:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.04249","created_at":"2026-05-17T23:41:01Z"},{"alias_kind":"pith_short_12","alias_value":"A2ZDPMVPZVBF","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"A2ZDPMVPZVBFFJQ5","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"A2ZDPMVP","created_at":"2026-05-18T12:31:05Z"}],"graph_snapshots":[{"event_id":"sha256:6e85162c680cc57cde81cdd0443ab0c170118979e7cc18b31519ed50075cb97b","target":"graph","created_at":"2026-05-17T23:41:01Z","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":"Relaxing the Riemannian condition to incorporate geometric quantities such as torsion and non-metricity may allow to explore new physics associated with defects in a hypothetical space-time microstructure. Here we show that non-metricity produces observable effects in quantum fields in the form of 4-fermion contact interactions, thereby allowing us to constrain the scale of non-metricity to be greater than 1 TeV by using results on Bhabha scattering. Our analysis is carried out in the framework of a wide class of theories of gravity in the metric-affine approach. The bound obtained represents ","authors_text":"A. Delhom I Latorre, Gonzalo J. Olmo, Michele Ronco","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-09-13T10:55:38Z","title":"Observable traces of non-metricity: new constraints on metric-affine gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.04249","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:ceca18481211afd0c64b44f1b32d5a7fb620f04ddf4fbb434d016a07a570162f","target":"record","created_at":"2026-05-17T23:41:01Z","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":"655fa5cdeca27f76155e87fe4a89b8499d7617905b5bb158d97435467e4e2a0f","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-09-13T10:55:38Z","title_canon_sha256":"b1601453e34b22aa2bef167f939d49995315ea0c2dce6e16fd99c338bae7fc7e"},"schema_version":"1.0","source":{"id":"1709.04249","kind":"arxiv","version":2}},"canonical_sha256":"06b237b2afcd4252a61d89bcea5b175b46d1dbf13ea4ff4f4f2e281d9867e90b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"06b237b2afcd4252a61d89bcea5b175b46d1dbf13ea4ff4f4f2e281d9867e90b","first_computed_at":"2026-05-17T23:41:01.472062Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:01.472062Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SxAoUSchfxtMkLWL3aDUr0QZmMv6BDq1y+awbngsEwRLb+Xg5uCNRvy3WKy87aalNsQpLrMzpTwmA7e1YXYOBg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:01.472708Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.04249","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ceca18481211afd0c64b44f1b32d5a7fb620f04ddf4fbb434d016a07a570162f","sha256:6e85162c680cc57cde81cdd0443ab0c170118979e7cc18b31519ed50075cb97b"],"state_sha256":"5242dd721eeec2e8c02758e3060fd1761e6769ba02941c4117ea298c4b09eca8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M17Kk9A6d+UPn2r/t+GWcpR3YmLy5rz2vm46Ua3XTUdQjJ1xDT3TRCx/3J3JPnQ240unyfCd1B/zSEazL/bnAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-29T21:55:55.095138Z","bundle_sha256":"30004ae1d5dc060e9d341feca07932a1816b8358c75da76720d782298cf60db7"}}