{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:47OKVCSOWVTY72RXPFYQEW3HWI","short_pith_number":"pith:47OKVCSO","canonical_record":{"source":{"id":"1601.04653","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-01-18T18:52:16Z","cross_cats_sorted":[],"title_canon_sha256":"994512e95eb208bf151fc3838e74a7b22d60c5558e12036bf2c006ec6aabd1b1","abstract_canon_sha256":"4f71f82601eb3856abdcdbed06c262a6a2e8bcf6c36092dcd4cb9a37cde2df26"},"schema_version":"1.0"},"canonical_sha256":"e7dcaa8a4eb5678fea377971025b67b201660798a81ae2cbf891f00fb32da8ef","source":{"kind":"arxiv","id":"1601.04653","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.04653","created_at":"2026-05-18T01:22:44Z"},{"alias_kind":"arxiv_version","alias_value":"1601.04653v1","created_at":"2026-05-18T01:22:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.04653","created_at":"2026-05-18T01:22:44Z"},{"alias_kind":"pith_short_12","alias_value":"47OKVCSOWVTY","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_16","alias_value":"47OKVCSOWVTY72RX","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_8","alias_value":"47OKVCSO","created_at":"2026-05-18T12:29:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:47OKVCSOWVTY72RXPFYQEW3HWI","target":"record","payload":{"canonical_record":{"source":{"id":"1601.04653","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-01-18T18:52:16Z","cross_cats_sorted":[],"title_canon_sha256":"994512e95eb208bf151fc3838e74a7b22d60c5558e12036bf2c006ec6aabd1b1","abstract_canon_sha256":"4f71f82601eb3856abdcdbed06c262a6a2e8bcf6c36092dcd4cb9a37cde2df26"},"schema_version":"1.0"},"canonical_sha256":"e7dcaa8a4eb5678fea377971025b67b201660798a81ae2cbf891f00fb32da8ef","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:22:44.557442Z","signature_b64":"wq/8JE9fgo7DwFCi95yHhdW3w8QBH4L/Xg/r+pBDphe2Jub9sJzd6Kc1hEvp/SmeaDODRjn2wpDSdvS7Su1NCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e7dcaa8a4eb5678fea377971025b67b201660798a81ae2cbf891f00fb32da8ef","last_reissued_at":"2026-05-18T01:22:44.556867Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:22:44.556867Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1601.04653","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":"2026-05-18T01:22:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lDiG9idbhfJE8SCPB/OI4aYxWmE/J2hYC0HoTHDZgOqO0nG/ogDeuMaIvB9vuhHEHOLPrMdxi5Bdmuuem3lyBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T04:58:42.509289Z"},"content_sha256":"be5b304312727bdee0e865dd863af3d1b910639c58b42ec6e8e75f1f65891bdf","schema_version":"1.0","event_id":"sha256:be5b304312727bdee0e865dd863af3d1b910639c58b42ec6e8e75f1f65891bdf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:47OKVCSOWVTY72RXPFYQEW3HWI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Modified gravity and binary pulsars: the Lorentz violating case","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Diego Blas","submitted_at":"2016-01-18T18:52:16Z","abstract_excerpt":"The dynamics of binary pulsars can be used to test different aspects of gravitation. This is particularly important to constrain alternatives to general relativity in regimes which are not probed by other methods. In this short contribution, I will describe the case of theories of gravity without Lorentz invariance. The latter are important in the context of quantum gravity and modify the laws of gravity at basically all scales."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.04653","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":"2026-05-18T01:22:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fRiP6UK+qaCHeVW/pNv/IRrv4uxs83reZYW1NyHz+Y5oGYVovh+W83CkWan9g1+6CsUKshhGOwafMKYHjTatDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T04:58:42.509941Z"},"content_sha256":"57fe9ede0489846980571db35ae8d1617b667a70caec93160dc047019a80f63c","schema_version":"1.0","event_id":"sha256:57fe9ede0489846980571db35ae8d1617b667a70caec93160dc047019a80f63c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/47OKVCSOWVTY72RXPFYQEW3HWI/bundle.json","state_url":"https://pith.science/pith/47OKVCSOWVTY72RXPFYQEW3HWI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/47OKVCSOWVTY72RXPFYQEW3HWI/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":"2026-05-30T04:58:42Z","links":{"resolver":"https://pith.science/pith/47OKVCSOWVTY72RXPFYQEW3HWI","bundle":"https://pith.science/pith/47OKVCSOWVTY72RXPFYQEW3HWI/bundle.json","state":"https://pith.science/pith/47OKVCSOWVTY72RXPFYQEW3HWI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/47OKVCSOWVTY72RXPFYQEW3HWI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:47OKVCSOWVTY72RXPFYQEW3HWI","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":"4f71f82601eb3856abdcdbed06c262a6a2e8bcf6c36092dcd4cb9a37cde2df26","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-01-18T18:52:16Z","title_canon_sha256":"994512e95eb208bf151fc3838e74a7b22d60c5558e12036bf2c006ec6aabd1b1"},"schema_version":"1.0","source":{"id":"1601.04653","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.04653","created_at":"2026-05-18T01:22:44Z"},{"alias_kind":"arxiv_version","alias_value":"1601.04653v1","created_at":"2026-05-18T01:22:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.04653","created_at":"2026-05-18T01:22:44Z"},{"alias_kind":"pith_short_12","alias_value":"47OKVCSOWVTY","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_16","alias_value":"47OKVCSOWVTY72RX","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_8","alias_value":"47OKVCSO","created_at":"2026-05-18T12:29:58Z"}],"graph_snapshots":[{"event_id":"sha256:57fe9ede0489846980571db35ae8d1617b667a70caec93160dc047019a80f63c","target":"graph","created_at":"2026-05-18T01:22:44Z","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":"The dynamics of binary pulsars can be used to test different aspects of gravitation. This is particularly important to constrain alternatives to general relativity in regimes which are not probed by other methods. In this short contribution, I will describe the case of theories of gravity without Lorentz invariance. The latter are important in the context of quantum gravity and modify the laws of gravity at basically all scales.","authors_text":"Diego Blas","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-01-18T18:52:16Z","title":"Modified gravity and binary pulsars: the Lorentz violating case"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.04653","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:be5b304312727bdee0e865dd863af3d1b910639c58b42ec6e8e75f1f65891bdf","target":"record","created_at":"2026-05-18T01:22:44Z","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":"4f71f82601eb3856abdcdbed06c262a6a2e8bcf6c36092dcd4cb9a37cde2df26","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-01-18T18:52:16Z","title_canon_sha256":"994512e95eb208bf151fc3838e74a7b22d60c5558e12036bf2c006ec6aabd1b1"},"schema_version":"1.0","source":{"id":"1601.04653","kind":"arxiv","version":1}},"canonical_sha256":"e7dcaa8a4eb5678fea377971025b67b201660798a81ae2cbf891f00fb32da8ef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e7dcaa8a4eb5678fea377971025b67b201660798a81ae2cbf891f00fb32da8ef","first_computed_at":"2026-05-18T01:22:44.556867Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:44.556867Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wq/8JE9fgo7DwFCi95yHhdW3w8QBH4L/Xg/r+pBDphe2Jub9sJzd6Kc1hEvp/SmeaDODRjn2wpDSdvS7Su1NCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:44.557442Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.04653","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:be5b304312727bdee0e865dd863af3d1b910639c58b42ec6e8e75f1f65891bdf","sha256:57fe9ede0489846980571db35ae8d1617b667a70caec93160dc047019a80f63c"],"state_sha256":"ddacaaeeed6323ab23504a758704d74cce0a33386634136fbdd763ab4f7e5711"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m4Zvw0IBejX7Ex6EHbrRT7q3irLGCTTQHByc44ELuLLbuaQEDpm8SMqfiumocV9LbkynNJYIK/rYMtdBAWlgAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T04:58:42.513165Z","bundle_sha256":"4804d0bd6c60836723eeee3bef8080d8354509a68dedb70c5a1067e826ab6f61"}}