{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:2EAUF6EPTSSI2BUU4KGNR3HFY3","short_pith_number":"pith:2EAUF6EP","canonical_record":{"source":{"id":"1407.3317","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-07-11T22:28:40Z","cross_cats_sorted":[],"title_canon_sha256":"25cbd1d8544b20937c120563a3dcb99caedea96ba19811319e353d58bba38cc8","abstract_canon_sha256":"70443405ca7d47fd61da86dca3d35d2a81a98c92924b1d04a7a7613151ca05f0"},"schema_version":"1.0"},"canonical_sha256":"d10142f88f9ca48d0694e28cd8ece5c6c41ac7affc519fa6d9aa5b7b548a5f7f","source":{"kind":"arxiv","id":"1407.3317","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.3317","created_at":"2026-05-18T01:32:34Z"},{"alias_kind":"arxiv_version","alias_value":"1407.3317v1","created_at":"2026-05-18T01:32:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.3317","created_at":"2026-05-18T01:32:34Z"},{"alias_kind":"pith_short_12","alias_value":"2EAUF6EPTSSI","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"2EAUF6EPTSSI2BUU","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"2EAUF6EP","created_at":"2026-05-18T12:28:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:2EAUF6EPTSSI2BUU4KGNR3HFY3","target":"record","payload":{"canonical_record":{"source":{"id":"1407.3317","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-07-11T22:28:40Z","cross_cats_sorted":[],"title_canon_sha256":"25cbd1d8544b20937c120563a3dcb99caedea96ba19811319e353d58bba38cc8","abstract_canon_sha256":"70443405ca7d47fd61da86dca3d35d2a81a98c92924b1d04a7a7613151ca05f0"},"schema_version":"1.0"},"canonical_sha256":"d10142f88f9ca48d0694e28cd8ece5c6c41ac7affc519fa6d9aa5b7b548a5f7f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:32:34.753192Z","signature_b64":"vwfYDaT9Ou4SNjnvPVRTf8nrbF+GIVTVSh4yfhit6xGNqvSjLDaDSIiQX+OP52gP/PkjgS2GsPBVKN9rDKboBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d10142f88f9ca48d0694e28cd8ece5c6c41ac7affc519fa6d9aa5b7b548a5f7f","last_reissued_at":"2026-05-18T01:32:34.752572Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:32:34.752572Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.3317","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":"2026-05-18T01:32:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p5ZesNYtLbL9zhrJRQ6SLCAnZCiWP4XOddWBFsOY/F3m6dfHk2mIIUpxQNyF4FbSUVnozAXfrLWLA26qvcdVDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T06:06:51.949878Z"},"content_sha256":"421ff493e395fcb6d29a9db82987c7ce8ec0463c3abe1d5fd715095648add8f6","schema_version":"1.0","event_id":"sha256:421ff493e395fcb6d29a9db82987c7ce8ec0463c3abe1d5fd715095648add8f6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:2EAUF6EPTSSI2BUU4KGNR3HFY3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spinorial Wave Equations and Stability of the Milne Spacetime","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Edgar Gasperin, Juan Antonio Valiente Kroon","submitted_at":"2014-07-11T22:28:40Z","abstract_excerpt":"The spinorial version of the conformal vacuum Einstein field equations are used to construct a system of quasilinear wave equations for the various conformal fields. As a part of the analysis we also show how to construct a subsidiary system of wave equations for the zero quantities associated to the various conformal field equations. This subsidiary system is used, in turn, to show that under suitable assumptions on the initial data a solution to the wave equations for the conformal fields implies a solution to the actual conformal Einstein field equations. The use of spinors allows for a mor"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.3317","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":"2026-05-18T01:32:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hosf7Tg5lfLKPy5CUJjw2xQdzedSJhOJjLNB5dGrF9BJVltNr6atyPtUFgHlYZY7+/ZNw8E1UtC4kxGm5w3PDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T06:06:51.950656Z"},"content_sha256":"ce1e6769b2a6d8c955fc1b3c8b2ec4b98ac933e8e7be86367b259386e14371e7","schema_version":"1.0","event_id":"sha256:ce1e6769b2a6d8c955fc1b3c8b2ec4b98ac933e8e7be86367b259386e14371e7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2EAUF6EPTSSI2BUU4KGNR3HFY3/bundle.json","state_url":"https://pith.science/pith/2EAUF6EPTSSI2BUU4KGNR3HFY3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2EAUF6EPTSSI2BUU4KGNR3HFY3/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":"2026-06-11T06:06:51Z","links":{"resolver":"https://pith.science/pith/2EAUF6EPTSSI2BUU4KGNR3HFY3","bundle":"https://pith.science/pith/2EAUF6EPTSSI2BUU4KGNR3HFY3/bundle.json","state":"https://pith.science/pith/2EAUF6EPTSSI2BUU4KGNR3HFY3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2EAUF6EPTSSI2BUU4KGNR3HFY3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:2EAUF6EPTSSI2BUU4KGNR3HFY3","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":"70443405ca7d47fd61da86dca3d35d2a81a98c92924b1d04a7a7613151ca05f0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-07-11T22:28:40Z","title_canon_sha256":"25cbd1d8544b20937c120563a3dcb99caedea96ba19811319e353d58bba38cc8"},"schema_version":"1.0","source":{"id":"1407.3317","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.3317","created_at":"2026-05-18T01:32:34Z"},{"alias_kind":"arxiv_version","alias_value":"1407.3317v1","created_at":"2026-05-18T01:32:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.3317","created_at":"2026-05-18T01:32:34Z"},{"alias_kind":"pith_short_12","alias_value":"2EAUF6EPTSSI","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"2EAUF6EPTSSI2BUU","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"2EAUF6EP","created_at":"2026-05-18T12:28:09Z"}],"graph_snapshots":[{"event_id":"sha256:ce1e6769b2a6d8c955fc1b3c8b2ec4b98ac933e8e7be86367b259386e14371e7","target":"graph","created_at":"2026-05-18T01:32:34Z","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 spinorial version of the conformal vacuum Einstein field equations are used to construct a system of quasilinear wave equations for the various conformal fields. As a part of the analysis we also show how to construct a subsidiary system of wave equations for the zero quantities associated to the various conformal field equations. This subsidiary system is used, in turn, to show that under suitable assumptions on the initial data a solution to the wave equations for the conformal fields implies a solution to the actual conformal Einstein field equations. The use of spinors allows for a mor","authors_text":"Edgar Gasperin, Juan Antonio Valiente Kroon","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-07-11T22:28:40Z","title":"Spinorial Wave Equations and Stability of the Milne Spacetime"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.3317","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":"sha256:421ff493e395fcb6d29a9db82987c7ce8ec0463c3abe1d5fd715095648add8f6","target":"record","created_at":"2026-05-18T01:32:34Z","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":"70443405ca7d47fd61da86dca3d35d2a81a98c92924b1d04a7a7613151ca05f0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-07-11T22:28:40Z","title_canon_sha256":"25cbd1d8544b20937c120563a3dcb99caedea96ba19811319e353d58bba38cc8"},"schema_version":"1.0","source":{"id":"1407.3317","kind":"arxiv","version":1}},"canonical_sha256":"d10142f88f9ca48d0694e28cd8ece5c6c41ac7affc519fa6d9aa5b7b548a5f7f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d10142f88f9ca48d0694e28cd8ece5c6c41ac7affc519fa6d9aa5b7b548a5f7f","first_computed_at":"2026-05-18T01:32:34.752572Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:32:34.752572Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vwfYDaT9Ou4SNjnvPVRTf8nrbF+GIVTVSh4yfhit6xGNqvSjLDaDSIiQX+OP52gP/PkjgS2GsPBVKN9rDKboBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:32:34.753192Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.3317","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:421ff493e395fcb6d29a9db82987c7ce8ec0463c3abe1d5fd715095648add8f6","sha256:ce1e6769b2a6d8c955fc1b3c8b2ec4b98ac933e8e7be86367b259386e14371e7"],"state_sha256":"bab12ae5e462b2ac58be979aed8e42bafd759ada08bc90a03abfab1eb04353e7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1nrVoOmnbR39Dt/L3pLveh3ixHVgAHDmfSG87WbrpBNh+6jqhn0pmiHmKZ4wB55BSd0Ybjl+gPnavM77Qlr5Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T06:06:51.954702Z","bundle_sha256":"9a766eed32a3b748e0a3e1a9dfa890a306d9ac372081626e86359780b640e3fd"}}