{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:DHEPHUIP7YVFX66VGKN6XTH44U","short_pith_number":"pith:DHEPHUIP","canonical_record":{"source":{"id":"1604.07092","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-04-24T23:00:30Z","cross_cats_sorted":["astro-ph.SR","hep-th"],"title_canon_sha256":"395fbd3e0f838108828b6182025f5262ba9c7b45a408aa01faf95c515a92b1dc","abstract_canon_sha256":"1c5e0ccdfa9103a936068c8daaa07c7d1561f04e078f07cac425910e9d57fc82"},"schema_version":"1.0"},"canonical_sha256":"19c8f3d10ffe2a5bfbd5329bebccfce53d8199c94f45b7be9ed2bd04147267a7","source":{"kind":"arxiv","id":"1604.07092","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.07092","created_at":"2026-05-18T01:03:59Z"},{"alias_kind":"arxiv_version","alias_value":"1604.07092v2","created_at":"2026-05-18T01:03:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.07092","created_at":"2026-05-18T01:03:59Z"},{"alias_kind":"pith_short_12","alias_value":"DHEPHUIP7YVF","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"DHEPHUIP7YVFX66V","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"DHEPHUIP","created_at":"2026-05-18T12:30:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:DHEPHUIP7YVFX66VGKN6XTH44U","target":"record","payload":{"canonical_record":{"source":{"id":"1604.07092","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-04-24T23:00:30Z","cross_cats_sorted":["astro-ph.SR","hep-th"],"title_canon_sha256":"395fbd3e0f838108828b6182025f5262ba9c7b45a408aa01faf95c515a92b1dc","abstract_canon_sha256":"1c5e0ccdfa9103a936068c8daaa07c7d1561f04e078f07cac425910e9d57fc82"},"schema_version":"1.0"},"canonical_sha256":"19c8f3d10ffe2a5bfbd5329bebccfce53d8199c94f45b7be9ed2bd04147267a7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:03:59.131208Z","signature_b64":"kKtRODamMbU/tO4ZMqgCGvrc+zyFJbPiJ0Y3GORH7G3VO56ebFiHLdT7tNeVQV0NKbaxMmrGJsb+/JDIOqgZBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"19c8f3d10ffe2a5bfbd5329bebccfce53d8199c94f45b7be9ed2bd04147267a7","last_reissued_at":"2026-05-18T01:03:59.130489Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:03:59.130489Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1604.07092","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":"2026-05-18T01:03:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9ITo39iZ0NIdtjkBDVI9Z3eU63B3Jv+twUot/9zCKSAFXP9DpfnlR07wbsTpsOv9pffVx3YBskTAfbrKJL4KCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T08:16:27.305022Z"},"content_sha256":"1a9d98d01db2e498f887443a7899947ac1cf001a51c5b870fbbea03e89a8c494","schema_version":"1.0","event_id":"sha256:1a9d98d01db2e498f887443a7899947ac1cf001a51c5b870fbbea03e89a8c494"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:DHEPHUIP7YVFX66VGKN6XTH44U","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Variations in the fine structure constant constraining gravity theories","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR","hep-th"],"primary_cat":"gr-qc","authors_text":"C. R. Muniz, H. S. Vieira, M. O. Tahim, M. S. Cunha, V. B. Bezerra","submitted_at":"2016-04-24T23:00:30Z","abstract_excerpt":"In this paper, we investigate how the fine structure constant, $\\alpha$, locally varies in the presence of a static and spherically symmetric gravitational source. The procedure consists in calculating the solution and the energy eigenvalues of a massive scalar field around that source, considering the weak-field regimen. From this result, we obtain expressions for an spatially variable fine structure constant by considering suitable modifications in the involved parameters admitting some scenarios of semi-classical and quantum gravities. Constraints on free parameters of the approached theori"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.07092","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":"2026-05-18T01:03:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zuWM375BOH5IqFKxSgm8usBfaBvd2zxy6ilkpoTdljzx/bzThGkREYnyurN0vf47g2fEy0CoKMtL5Jy+S8g0AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T08:16:27.305385Z"},"content_sha256":"eef237c4fca98eb97f02b017e93924edd624e4496b2738583293e39f941c777b","schema_version":"1.0","event_id":"sha256:eef237c4fca98eb97f02b017e93924edd624e4496b2738583293e39f941c777b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DHEPHUIP7YVFX66VGKN6XTH44U/bundle.json","state_url":"https://pith.science/pith/DHEPHUIP7YVFX66VGKN6XTH44U/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DHEPHUIP7YVFX66VGKN6XTH44U/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":"2026-05-28T08:16:27Z","links":{"resolver":"https://pith.science/pith/DHEPHUIP7YVFX66VGKN6XTH44U","bundle":"https://pith.science/pith/DHEPHUIP7YVFX66VGKN6XTH44U/bundle.json","state":"https://pith.science/pith/DHEPHUIP7YVFX66VGKN6XTH44U/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DHEPHUIP7YVFX66VGKN6XTH44U/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:DHEPHUIP7YVFX66VGKN6XTH44U","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":"1c5e0ccdfa9103a936068c8daaa07c7d1561f04e078f07cac425910e9d57fc82","cross_cats_sorted":["astro-ph.SR","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-04-24T23:00:30Z","title_canon_sha256":"395fbd3e0f838108828b6182025f5262ba9c7b45a408aa01faf95c515a92b1dc"},"schema_version":"1.0","source":{"id":"1604.07092","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.07092","created_at":"2026-05-18T01:03:59Z"},{"alias_kind":"arxiv_version","alias_value":"1604.07092v2","created_at":"2026-05-18T01:03:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.07092","created_at":"2026-05-18T01:03:59Z"},{"alias_kind":"pith_short_12","alias_value":"DHEPHUIP7YVF","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"DHEPHUIP7YVFX66V","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"DHEPHUIP","created_at":"2026-05-18T12:30:12Z"}],"graph_snapshots":[{"event_id":"sha256:eef237c4fca98eb97f02b017e93924edd624e4496b2738583293e39f941c777b","target":"graph","created_at":"2026-05-18T01:03:59Z","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":"In this paper, we investigate how the fine structure constant, $\\alpha$, locally varies in the presence of a static and spherically symmetric gravitational source. The procedure consists in calculating the solution and the energy eigenvalues of a massive scalar field around that source, considering the weak-field regimen. From this result, we obtain expressions for an spatially variable fine structure constant by considering suitable modifications in the involved parameters admitting some scenarios of semi-classical and quantum gravities. Constraints on free parameters of the approached theori","authors_text":"C. R. Muniz, H. S. Vieira, M. O. Tahim, M. S. Cunha, V. B. Bezerra","cross_cats":["astro-ph.SR","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-04-24T23:00:30Z","title":"Variations in the fine structure constant constraining gravity theories"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.07092","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":"sha256:1a9d98d01db2e498f887443a7899947ac1cf001a51c5b870fbbea03e89a8c494","target":"record","created_at":"2026-05-18T01:03:59Z","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":"1c5e0ccdfa9103a936068c8daaa07c7d1561f04e078f07cac425910e9d57fc82","cross_cats_sorted":["astro-ph.SR","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-04-24T23:00:30Z","title_canon_sha256":"395fbd3e0f838108828b6182025f5262ba9c7b45a408aa01faf95c515a92b1dc"},"schema_version":"1.0","source":{"id":"1604.07092","kind":"arxiv","version":2}},"canonical_sha256":"19c8f3d10ffe2a5bfbd5329bebccfce53d8199c94f45b7be9ed2bd04147267a7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"19c8f3d10ffe2a5bfbd5329bebccfce53d8199c94f45b7be9ed2bd04147267a7","first_computed_at":"2026-05-18T01:03:59.130489Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:03:59.130489Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kKtRODamMbU/tO4ZMqgCGvrc+zyFJbPiJ0Y3GORH7G3VO56ebFiHLdT7tNeVQV0NKbaxMmrGJsb+/JDIOqgZBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:03:59.131208Z","signed_message":"canonical_sha256_bytes"},"source_id":"1604.07092","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1a9d98d01db2e498f887443a7899947ac1cf001a51c5b870fbbea03e89a8c494","sha256:eef237c4fca98eb97f02b017e93924edd624e4496b2738583293e39f941c777b"],"state_sha256":"121070bd204779017ac26a4213031097542815175dd2215efeb17913bbbfa3b7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5/6vxp9+7nHdFZ/AiE6GeEK8rkDrdRCAaGJaXJ/yjg/FGosIZDgbc0rASTkk9s6iGAXmMlsSIfZGkJBeA+PRBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T08:16:27.307441Z","bundle_sha256":"f1209f2ba50d0dac1ef316a7ae87e9e433d6f4e73f974d37329e6bc53d95c3c4"}}