{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:B23YKPZLXGIQ2OC4WO3B42WN67","short_pith_number":"pith:B23YKPZL","canonical_record":{"source":{"id":"2111.04388","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-11-08T11:19:33Z","cross_cats_sorted":["cond-mat.str-el","hep-th"],"title_canon_sha256":"e165ca6164347b9d3cc5180a430f8c34d2fbb7c5e5b354b6d28e16da32040866","abstract_canon_sha256":"371ba09a77b270a96b797e8169e43356bf13aedf622c147435e65068c1d9d309"},"schema_version":"1.0"},"canonical_sha256":"0eb7853f2bb9910d385cb3b61e6acdf7c2105bf760290d348f339b16d1e981c2","source":{"kind":"arxiv","id":"2111.04388","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.04388","created_at":"2026-07-05T04:23:39Z"},{"alias_kind":"arxiv_version","alias_value":"2111.04388v2","created_at":"2026-07-05T04:23:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.04388","created_at":"2026-07-05T04:23:39Z"},{"alias_kind":"pith_short_12","alias_value":"B23YKPZLXGIQ","created_at":"2026-07-05T04:23:39Z"},{"alias_kind":"pith_short_16","alias_value":"B23YKPZLXGIQ2OC4","created_at":"2026-07-05T04:23:39Z"},{"alias_kind":"pith_short_8","alias_value":"B23YKPZL","created_at":"2026-07-05T04:23:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:B23YKPZLXGIQ2OC4WO3B42WN67","target":"record","payload":{"canonical_record":{"source":{"id":"2111.04388","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-11-08T11:19:33Z","cross_cats_sorted":["cond-mat.str-el","hep-th"],"title_canon_sha256":"e165ca6164347b9d3cc5180a430f8c34d2fbb7c5e5b354b6d28e16da32040866","abstract_canon_sha256":"371ba09a77b270a96b797e8169e43356bf13aedf622c147435e65068c1d9d309"},"schema_version":"1.0"},"canonical_sha256":"0eb7853f2bb9910d385cb3b61e6acdf7c2105bf760290d348f339b16d1e981c2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:23:39.383267Z","signature_b64":"zDvs+gmkZBvIQppAhW+lL5PQB0eaxpTSFK1+jkMfVhqB3Z3cVgn8AKkNrwb3EWC2t91Nhh8ubJudBaxNh+YXBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0eb7853f2bb9910d385cb3b61e6acdf7c2105bf760290d348f339b16d1e981c2","last_reissued_at":"2026-07-05T04:23:39.382773Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:23:39.382773Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2111.04388","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":"2026-07-05T04:23:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eWBH8eS2QvOorlK3+6uq6CSwJR0fHmJigUNfmfkLdDWbX0jnVFgwqdn8ST1L7lvQTshiClcGC1jrM+RBZrUvAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T11:50:15.839425Z"},"content_sha256":"d8a02e6ab8364ada6b5392e0a98a2cdec779ce4a26b75c853ffc686409e6a4b2","schema_version":"1.0","event_id":"sha256:d8a02e6ab8364ada6b5392e0a98a2cdec779ce4a26b75c853ffc686409e6a4b2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:B23YKPZLXGIQ2OC4WO3B42WN67","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Axion gravitodynamics, Lense-Thirring effect, and gravitational waves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el","hep-th"],"primary_cat":"gr-qc","authors_text":"Athanasios Chatzistavrakidis, George Manolakos, Georgios Karagiannis, Peter Schupp","submitted_at":"2021-11-08T11:19:33Z","abstract_excerpt":"We investigate physical implications of a gravitational analog of axion electrodynamics with a parity-violating gravitoelectromagnetic theta term. This is related to the Nieh-Yan topological invariant in gravity with torsion, in contrast to the well-studied gravitational Chern-Simons term quadratic in curvature, coupled via a dynamical axionlike scalar field. Axion gravitodynamics is the corresponding linearized theory. We find that potentially observable effects are over 80 orders of magnitude stronger than for its Chern-Simons counterpart and could be in reach for detection by experiments in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.04388","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/2111.04388/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":"2026-07-05T04:23:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k1PRblHJ+IE82fbihypqo4s0cSim+iEtorpIH4EywR248m70DA2DsluVh9bz5tGXbnTvQzaP9Aic8KqPaC9YCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T11:50:15.839921Z"},"content_sha256":"a0ed2c58588e33a07ec82b1a67fa09c48bcc9b63afe04331574bf4d4b85e3f33","schema_version":"1.0","event_id":"sha256:a0ed2c58588e33a07ec82b1a67fa09c48bcc9b63afe04331574bf4d4b85e3f33"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B23YKPZLXGIQ2OC4WO3B42WN67/bundle.json","state_url":"https://pith.science/pith/B23YKPZLXGIQ2OC4WO3B42WN67/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B23YKPZLXGIQ2OC4WO3B42WN67/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":"2026-08-08T11:50:15Z","links":{"resolver":"https://pith.science/pith/B23YKPZLXGIQ2OC4WO3B42WN67","bundle":"https://pith.science/pith/B23YKPZLXGIQ2OC4WO3B42WN67/bundle.json","state":"https://pith.science/pith/B23YKPZLXGIQ2OC4WO3B42WN67/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B23YKPZLXGIQ2OC4WO3B42WN67/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:B23YKPZLXGIQ2OC4WO3B42WN67","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":"371ba09a77b270a96b797e8169e43356bf13aedf622c147435e65068c1d9d309","cross_cats_sorted":["cond-mat.str-el","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-11-08T11:19:33Z","title_canon_sha256":"e165ca6164347b9d3cc5180a430f8c34d2fbb7c5e5b354b6d28e16da32040866"},"schema_version":"1.0","source":{"id":"2111.04388","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.04388","created_at":"2026-07-05T04:23:39Z"},{"alias_kind":"arxiv_version","alias_value":"2111.04388v2","created_at":"2026-07-05T04:23:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.04388","created_at":"2026-07-05T04:23:39Z"},{"alias_kind":"pith_short_12","alias_value":"B23YKPZLXGIQ","created_at":"2026-07-05T04:23:39Z"},{"alias_kind":"pith_short_16","alias_value":"B23YKPZLXGIQ2OC4","created_at":"2026-07-05T04:23:39Z"},{"alias_kind":"pith_short_8","alias_value":"B23YKPZL","created_at":"2026-07-05T04:23:39Z"}],"graph_snapshots":[{"event_id":"sha256:a0ed2c58588e33a07ec82b1a67fa09c48bcc9b63afe04331574bf4d4b85e3f33","target":"graph","created_at":"2026-07-05T04:23:39Z","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/2111.04388/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate physical implications of a gravitational analog of axion electrodynamics with a parity-violating gravitoelectromagnetic theta term. This is related to the Nieh-Yan topological invariant in gravity with torsion, in contrast to the well-studied gravitational Chern-Simons term quadratic in curvature, coupled via a dynamical axionlike scalar field. Axion gravitodynamics is the corresponding linearized theory. We find that potentially observable effects are over 80 orders of magnitude stronger than for its Chern-Simons counterpart and could be in reach for detection by experiments in","authors_text":"Athanasios Chatzistavrakidis, George Manolakos, Georgios Karagiannis, Peter Schupp","cross_cats":["cond-mat.str-el","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-11-08T11:19:33Z","title":"Axion gravitodynamics, Lense-Thirring effect, and gravitational waves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.04388","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:d8a02e6ab8364ada6b5392e0a98a2cdec779ce4a26b75c853ffc686409e6a4b2","target":"record","created_at":"2026-07-05T04:23:39Z","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":"371ba09a77b270a96b797e8169e43356bf13aedf622c147435e65068c1d9d309","cross_cats_sorted":["cond-mat.str-el","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-11-08T11:19:33Z","title_canon_sha256":"e165ca6164347b9d3cc5180a430f8c34d2fbb7c5e5b354b6d28e16da32040866"},"schema_version":"1.0","source":{"id":"2111.04388","kind":"arxiv","version":2}},"canonical_sha256":"0eb7853f2bb9910d385cb3b61e6acdf7c2105bf760290d348f339b16d1e981c2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0eb7853f2bb9910d385cb3b61e6acdf7c2105bf760290d348f339b16d1e981c2","first_computed_at":"2026-07-05T04:23:39.382773Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:23:39.382773Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zDvs+gmkZBvIQppAhW+lL5PQB0eaxpTSFK1+jkMfVhqB3Z3cVgn8AKkNrwb3EWC2t91Nhh8ubJudBaxNh+YXBg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:23:39.383267Z","signed_message":"canonical_sha256_bytes"},"source_id":"2111.04388","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d8a02e6ab8364ada6b5392e0a98a2cdec779ce4a26b75c853ffc686409e6a4b2","sha256:a0ed2c58588e33a07ec82b1a67fa09c48bcc9b63afe04331574bf4d4b85e3f33"],"state_sha256":"053d34ee58eda932c7adf208c1f4110e18ffdc51f66414c17b5f933499164b9f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RKDEIAD7nAnOudqWtluZrlaQnhAZ6hHlBosKYOyBv3TYgCe1bMCIpaIAs1c5T3wvhsgJUFfeFQkAyWxmcZKuAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T11:50:15.844786Z","bundle_sha256":"eae825edf8f9cbc63739d50ba1eb13ac85d77e316df9b85d9723752eec470b1d"}}