{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:ZDRRX5H3N54BENEFNCHKZ5LKGS","short_pith_number":"pith:ZDRRX5H3","canonical_record":{"source":{"id":"1903.09096","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-03-21T16:23:41Z","cross_cats_sorted":["gr-qc","hep-ex","hep-th"],"title_canon_sha256":"b30e1260b84fc57b4c732fb0ed881ae7f29c3f3931e4fda9410075b7da4478b8","abstract_canon_sha256":"e68e560a2ebf890b327c2a80751b95ad38fc521d4a16bc63fc17bcd101a1e1a3"},"schema_version":"1.0"},"canonical_sha256":"c8e31bf4fb6f78123485688eacf56a34b861eb206bbd3ee66766842a120136e9","source":{"kind":"arxiv","id":"1903.09096","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.09096","created_at":"2026-05-17T23:50:43Z"},{"alias_kind":"arxiv_version","alias_value":"1903.09096v1","created_at":"2026-05-17T23:50:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.09096","created_at":"2026-05-17T23:50:43Z"},{"alias_kind":"pith_short_12","alias_value":"ZDRRX5H3N54B","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZDRRX5H3N54BENEF","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZDRRX5H3","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:ZDRRX5H3N54BENEFNCHKZ5LKGS","target":"record","payload":{"canonical_record":{"source":{"id":"1903.09096","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-03-21T16:23:41Z","cross_cats_sorted":["gr-qc","hep-ex","hep-th"],"title_canon_sha256":"b30e1260b84fc57b4c732fb0ed881ae7f29c3f3931e4fda9410075b7da4478b8","abstract_canon_sha256":"e68e560a2ebf890b327c2a80751b95ad38fc521d4a16bc63fc17bcd101a1e1a3"},"schema_version":"1.0"},"canonical_sha256":"c8e31bf4fb6f78123485688eacf56a34b861eb206bbd3ee66766842a120136e9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:50:43.224869Z","signature_b64":"RtCuKfYhR+2FuR5sVHLebexQtxbArPyiDDx1qqW2gV8ddm49EAen8KAArM+S9QqElHRW6xwG6B5Fy1A47anEDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c8e31bf4fb6f78123485688eacf56a34b861eb206bbd3ee66766842a120136e9","last_reissued_at":"2026-05-17T23:50:43.224486Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:50:43.224486Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.09096","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:50:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TjLTGoM5a1HyrUPwfOCWRvh+hstMw/JyfquQi8Lc7/nBuFVuSnG3VDkT8cGGCVygQYxWy47oAzi2tp5E37eSDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T11:39:30.050227Z"},"content_sha256":"ec169cf651e67d42641326492c9c115fe34f4b44a77d4350da5269f45067eed4","schema_version":"1.0","event_id":"sha256:ec169cf651e67d42641326492c9c115fe34f4b44a77d4350da5269f45067eed4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:ZDRRX5H3N54BENEFNCHKZ5LKGS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the Gravitational Force on Anti-Matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-ex","hep-th"],"primary_cat":"hep-ph","authors_text":"Allen Caldwell, Gia Dvali","submitted_at":"2019-03-21T16:23:41Z","abstract_excerpt":"A number of experiments are currently underway on antimatter, particularly anti-hydrogen, to test whether the fundamental interactions behave the same way as for matter. Here we present a simple argument showing that a bound on a difference in gravitational forces exerted on matter and antimatter is already so severe that is goes well beyond the sensitivity of the above measurements."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.09096","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:50:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fBma2zWekvg4EH2lkxbRql0+AUsbs7XnSLhBgvA6AWax+xDqaPf8g0l/OGT8FMDt1ILVtiiZi2We7Z/VdX98Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T11:39:30.050637Z"},"content_sha256":"dd31cd0a49441e2cfa91bd82e1052e81de403d13ac42277d8644ef4d4d74adc1","schema_version":"1.0","event_id":"sha256:dd31cd0a49441e2cfa91bd82e1052e81de403d13ac42277d8644ef4d4d74adc1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZDRRX5H3N54BENEFNCHKZ5LKGS/bundle.json","state_url":"https://pith.science/pith/ZDRRX5H3N54BENEFNCHKZ5LKGS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZDRRX5H3N54BENEFNCHKZ5LKGS/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":"2026-05-26T11:39:30Z","links":{"resolver":"https://pith.science/pith/ZDRRX5H3N54BENEFNCHKZ5LKGS","bundle":"https://pith.science/pith/ZDRRX5H3N54BENEFNCHKZ5LKGS/bundle.json","state":"https://pith.science/pith/ZDRRX5H3N54BENEFNCHKZ5LKGS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZDRRX5H3N54BENEFNCHKZ5LKGS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ZDRRX5H3N54BENEFNCHKZ5LKGS","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":"e68e560a2ebf890b327c2a80751b95ad38fc521d4a16bc63fc17bcd101a1e1a3","cross_cats_sorted":["gr-qc","hep-ex","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-03-21T16:23:41Z","title_canon_sha256":"b30e1260b84fc57b4c732fb0ed881ae7f29c3f3931e4fda9410075b7da4478b8"},"schema_version":"1.0","source":{"id":"1903.09096","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.09096","created_at":"2026-05-17T23:50:43Z"},{"alias_kind":"arxiv_version","alias_value":"1903.09096v1","created_at":"2026-05-17T23:50:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.09096","created_at":"2026-05-17T23:50:43Z"},{"alias_kind":"pith_short_12","alias_value":"ZDRRX5H3N54B","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZDRRX5H3N54BENEF","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZDRRX5H3","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:dd31cd0a49441e2cfa91bd82e1052e81de403d13ac42277d8644ef4d4d74adc1","target":"graph","created_at":"2026-05-17T23:50:43Z","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":"A number of experiments are currently underway on antimatter, particularly anti-hydrogen, to test whether the fundamental interactions behave the same way as for matter. Here we present a simple argument showing that a bound on a difference in gravitational forces exerted on matter and antimatter is already so severe that is goes well beyond the sensitivity of the above measurements.","authors_text":"Allen Caldwell, Gia Dvali","cross_cats":["gr-qc","hep-ex","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-03-21T16:23:41Z","title":"On the Gravitational Force on Anti-Matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.09096","kind":"arxiv","version":1},"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:ec169cf651e67d42641326492c9c115fe34f4b44a77d4350da5269f45067eed4","target":"record","created_at":"2026-05-17T23:50:43Z","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":"e68e560a2ebf890b327c2a80751b95ad38fc521d4a16bc63fc17bcd101a1e1a3","cross_cats_sorted":["gr-qc","hep-ex","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-03-21T16:23:41Z","title_canon_sha256":"b30e1260b84fc57b4c732fb0ed881ae7f29c3f3931e4fda9410075b7da4478b8"},"schema_version":"1.0","source":{"id":"1903.09096","kind":"arxiv","version":1}},"canonical_sha256":"c8e31bf4fb6f78123485688eacf56a34b861eb206bbd3ee66766842a120136e9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c8e31bf4fb6f78123485688eacf56a34b861eb206bbd3ee66766842a120136e9","first_computed_at":"2026-05-17T23:50:43.224486Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:50:43.224486Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RtCuKfYhR+2FuR5sVHLebexQtxbArPyiDDx1qqW2gV8ddm49EAen8KAArM+S9QqElHRW6xwG6B5Fy1A47anEDQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:50:43.224869Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.09096","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ec169cf651e67d42641326492c9c115fe34f4b44a77d4350da5269f45067eed4","sha256:dd31cd0a49441e2cfa91bd82e1052e81de403d13ac42277d8644ef4d4d74adc1"],"state_sha256":"5d361e4fc3983fe15acba1a23a9a488a0551818b568ba136910524ced80fdbed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B9t8gtECMQFfdHDCpBWG7+a8ab4kpwujDlEjOQu1K2ZD7soYUMBu0V8QqM0iHkRJGsTquGE9qRQP3pw6Gha0DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T11:39:30.053524Z","bundle_sha256":"0c6326dacdfc04c63834adac30d0550046004dd67d09e558a1f32d584032222a"}}