{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:KX5GTSOCUA3NDWGP223PBH5IA2","short_pith_number":"pith:KX5GTSOC","canonical_record":{"source":{"id":"1902.09131","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-02-25T08:11:36Z","cross_cats_sorted":["hep-th","math-ph","math.MP"],"title_canon_sha256":"697667418952d0f3f800f411898aa98c9af02fbcf8f4a5b77397c5e2be1ba8d9","abstract_canon_sha256":"b21b2b99ba99d987733c61f6e6e600d034dfab6f5fb21790121aad87eeadf90d"},"schema_version":"1.0"},"canonical_sha256":"55fa69c9c2a036d1d8cfd6b6f09fa806afea9be66e939626f4b55ae37d2e5057","source":{"kind":"arxiv","id":"1902.09131","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.09131","created_at":"2026-05-17T23:52:46Z"},{"alias_kind":"arxiv_version","alias_value":"1902.09131v1","created_at":"2026-05-17T23:52:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.09131","created_at":"2026-05-17T23:52:46Z"},{"alias_kind":"pith_short_12","alias_value":"KX5GTSOCUA3N","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"KX5GTSOCUA3NDWGP","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"KX5GTSOC","created_at":"2026-05-18T12:33:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:KX5GTSOCUA3NDWGP223PBH5IA2","target":"record","payload":{"canonical_record":{"source":{"id":"1902.09131","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-02-25T08:11:36Z","cross_cats_sorted":["hep-th","math-ph","math.MP"],"title_canon_sha256":"697667418952d0f3f800f411898aa98c9af02fbcf8f4a5b77397c5e2be1ba8d9","abstract_canon_sha256":"b21b2b99ba99d987733c61f6e6e600d034dfab6f5fb21790121aad87eeadf90d"},"schema_version":"1.0"},"canonical_sha256":"55fa69c9c2a036d1d8cfd6b6f09fa806afea9be66e939626f4b55ae37d2e5057","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:52:46.563151Z","signature_b64":"vbp7F3lAXll1alnzr0F+n0BMG+siYbdYKkZBUyDtAyb+HevQSFQHY407iX3z7OMnscTJpZrAYx2nZmhiRaTVAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"55fa69c9c2a036d1d8cfd6b6f09fa806afea9be66e939626f4b55ae37d2e5057","last_reissued_at":"2026-05-17T23:52:46.562355Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:52:46.562355Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.09131","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":"2026-05-17T23:52:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X0TuBnyem7ZXxozb+Mh+wqAI8Mup/OHIlLRdglAZSkO4S7IzvHKBW0J1bP9Ycr9hiQwmXeaCTbsrXPUpkhz1AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T03:52:54.174758Z"},"content_sha256":"77faa1e1583b299d6a4fe5127982f74766b1e66faf09d39eddf5da6b9a1f00f4","schema_version":"1.0","event_id":"sha256:77faa1e1583b299d6a4fe5127982f74766b1e66faf09d39eddf5da6b9a1f00f4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:KX5GTSOCUA3NDWGP223PBH5IA2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Beyond Einstein: A Polynomial Affine Model of Gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th","math-ph","math.MP"],"primary_cat":"gr-qc","authors_text":"Oscar Castillo-Felisola","submitted_at":"2019-02-25T08:11:36Z","abstract_excerpt":"We show that the effective field equations for a recently formulated polynomial affine model of gravity, in the sector of a torsion-free connection, accept general Einstein manifolds---with or without cosmological constant---as solutions. Moreover, the effective field equations are partially those obtained from a gravitational Yang-Mills theory known as the Stephenson-Kilmister-Yang (SKY) theory. Additionally, we find a generalisation of a minimally coupled massless scalar field in general relativity within a \"minimally\" coupled scalar field in this affine model. Finally, we present the road m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.09131","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":"2026-05-17T23:52:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TLwM2lhxQDC98Qt5VcCUrbPkzEEf359E24NliJfPDdN5ibp5k7KS4TUjQr/tLNXMKXSHaHxyYz8KmcLwng07DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T03:52:54.175153Z"},"content_sha256":"68c1340f6f502f479e954768d12e9789ab41e665303e4bf9dab25e2a5122b814","schema_version":"1.0","event_id":"sha256:68c1340f6f502f479e954768d12e9789ab41e665303e4bf9dab25e2a5122b814"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KX5GTSOCUA3NDWGP223PBH5IA2/bundle.json","state_url":"https://pith.science/pith/KX5GTSOCUA3NDWGP223PBH5IA2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KX5GTSOCUA3NDWGP223PBH5IA2/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":"2026-05-30T03:52:54Z","links":{"resolver":"https://pith.science/pith/KX5GTSOCUA3NDWGP223PBH5IA2","bundle":"https://pith.science/pith/KX5GTSOCUA3NDWGP223PBH5IA2/bundle.json","state":"https://pith.science/pith/KX5GTSOCUA3NDWGP223PBH5IA2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KX5GTSOCUA3NDWGP223PBH5IA2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:KX5GTSOCUA3NDWGP223PBH5IA2","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":"b21b2b99ba99d987733c61f6e6e600d034dfab6f5fb21790121aad87eeadf90d","cross_cats_sorted":["hep-th","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-02-25T08:11:36Z","title_canon_sha256":"697667418952d0f3f800f411898aa98c9af02fbcf8f4a5b77397c5e2be1ba8d9"},"schema_version":"1.0","source":{"id":"1902.09131","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.09131","created_at":"2026-05-17T23:52:46Z"},{"alias_kind":"arxiv_version","alias_value":"1902.09131v1","created_at":"2026-05-17T23:52:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.09131","created_at":"2026-05-17T23:52:46Z"},{"alias_kind":"pith_short_12","alias_value":"KX5GTSOCUA3N","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"KX5GTSOCUA3NDWGP","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"KX5GTSOC","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:68c1340f6f502f479e954768d12e9789ab41e665303e4bf9dab25e2a5122b814","target":"graph","created_at":"2026-05-17T23:52:46Z","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":"We show that the effective field equations for a recently formulated polynomial affine model of gravity, in the sector of a torsion-free connection, accept general Einstein manifolds---with or without cosmological constant---as solutions. Moreover, the effective field equations are partially those obtained from a gravitational Yang-Mills theory known as the Stephenson-Kilmister-Yang (SKY) theory. Additionally, we find a generalisation of a minimally coupled massless scalar field in general relativity within a \"minimally\" coupled scalar field in this affine model. Finally, we present the road m","authors_text":"Oscar Castillo-Felisola","cross_cats":["hep-th","math-ph","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-02-25T08:11:36Z","title":"Beyond Einstein: A Polynomial Affine Model of Gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.09131","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":"sha256:77faa1e1583b299d6a4fe5127982f74766b1e66faf09d39eddf5da6b9a1f00f4","target":"record","created_at":"2026-05-17T23:52:46Z","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":"b21b2b99ba99d987733c61f6e6e600d034dfab6f5fb21790121aad87eeadf90d","cross_cats_sorted":["hep-th","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-02-25T08:11:36Z","title_canon_sha256":"697667418952d0f3f800f411898aa98c9af02fbcf8f4a5b77397c5e2be1ba8d9"},"schema_version":"1.0","source":{"id":"1902.09131","kind":"arxiv","version":1}},"canonical_sha256":"55fa69c9c2a036d1d8cfd6b6f09fa806afea9be66e939626f4b55ae37d2e5057","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"55fa69c9c2a036d1d8cfd6b6f09fa806afea9be66e939626f4b55ae37d2e5057","first_computed_at":"2026-05-17T23:52:46.562355Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:52:46.562355Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vbp7F3lAXll1alnzr0F+n0BMG+siYbdYKkZBUyDtAyb+HevQSFQHY407iX3z7OMnscTJpZrAYx2nZmhiRaTVAg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:52:46.563151Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.09131","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:77faa1e1583b299d6a4fe5127982f74766b1e66faf09d39eddf5da6b9a1f00f4","sha256:68c1340f6f502f479e954768d12e9789ab41e665303e4bf9dab25e2a5122b814"],"state_sha256":"f21db3fa179799f647d25f0c1910736909a37c2078e1fea8edc7884b36a12ab1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FkwXcLk8eKrgSpPzB64jI+xykRovDUxacXArguYg9EBuX9+O0WZWgcOd1elMM9oHYzY1939TNNIWStPgJoDBDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T03:52:54.177356Z","bundle_sha256":"41a26e1412aa0fdd3bac16b744d3cbf6d01c6ce4703e256495be70538d8a0743"}}