{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:TITA6WLINC3AQK2VUOXGFXE6EY","short_pith_number":"pith:TITA6WLI","canonical_record":{"source":{"id":"1407.7024","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-07-25T19:56:00Z","cross_cats_sorted":["math.AP"],"title_canon_sha256":"d5586cf1e91da239134fea3c58dd16626db9b0069647207f006221636bdf1212","abstract_canon_sha256":"2bd3477800ef219add15156845e051e2b0e49a00bddb7aa516f27fe655c5c462"},"schema_version":"1.0"},"canonical_sha256":"9a260f596868b6082b55a3ae62dc9e2629d74282af064ffd42fc92ed91c57897","source":{"kind":"arxiv","id":"1407.7024","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.7024","created_at":"2026-05-18T02:46:31Z"},{"alias_kind":"arxiv_version","alias_value":"1407.7024v1","created_at":"2026-05-18T02:46:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.7024","created_at":"2026-05-18T02:46:31Z"},{"alias_kind":"pith_short_12","alias_value":"TITA6WLINC3A","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"TITA6WLINC3AQK2V","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"TITA6WLI","created_at":"2026-05-18T12:28:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:TITA6WLINC3AQK2VUOXGFXE6EY","target":"record","payload":{"canonical_record":{"source":{"id":"1407.7024","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-07-25T19:56:00Z","cross_cats_sorted":["math.AP"],"title_canon_sha256":"d5586cf1e91da239134fea3c58dd16626db9b0069647207f006221636bdf1212","abstract_canon_sha256":"2bd3477800ef219add15156845e051e2b0e49a00bddb7aa516f27fe655c5c462"},"schema_version":"1.0"},"canonical_sha256":"9a260f596868b6082b55a3ae62dc9e2629d74282af064ffd42fc92ed91c57897","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:46:31.882539Z","signature_b64":"qZs1ocgsbifLcIc0yW1VSYvIzvs0AOqTM6aBECP0RUwIhiu7/ZvCpRL3v+2wIVBM6KV2+OakkIz/oM2YfChTAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9a260f596868b6082b55a3ae62dc9e2629d74282af064ffd42fc92ed91c57897","last_reissued_at":"2026-05-18T02:46:31.882107Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:46:31.882107Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.7024","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":"2026-05-18T02:46:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lAXf3ojL6nAeTNUMAguf7QeIvjGjIK0feEjmf61quAEKmy6WkaLhhEdCv9cIBbEd5+AsvIL8eJAwhbi2+YUMCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T20:33:45.375164Z"},"content_sha256":"4510e1001f27770dc2d341f39f2ae415fcb0ec8c1b9f8ab2b1a8da42781b70cd","schema_version":"1.0","event_id":"sha256:4510e1001f27770dc2d341f39f2ae415fcb0ec8c1b9f8ab2b1a8da42781b70cd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:TITA6WLINC3AQK2VUOXGFXE6EY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Second order mean field games with degenerate diffusion and local coupling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.AP"],"primary_cat":"math.OC","authors_text":"Alessio Porretta (DIPMAT), Daniela Tonon (CEREMADE), J. Graber (INRIA Saclay - Ile de France), Pierre Cardaliaguet (CEREMADE)","submitted_at":"2014-07-25T19:56:00Z","abstract_excerpt":"We analyze a (possibly degenerate) second order mean field games system of partial differential equations. The distinguishing features of the model considered are (1) that it is not uniformly parabolic, including the first order case as a possibility, and (2) the coupling is a local operator on the density. As a result we look for weak, not smooth, solutions. Our main result is the existence and uniqueness of suitably defined weak solutions, which are characterized as minimizers of two optimal control problems. We also show that such solutions are stable with respect to the data, so that in pa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.7024","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":"2026-05-18T02:46:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z3aKT4LRpyOXoergzPSDWC+xMc+Yfwzywkb7wcyrxrTkpzkI9ubQRCvKxV5rgNt3IUUgqS2fqH4I9TVw8OhjDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T20:33:45.375524Z"},"content_sha256":"1d0f6b641db9da0c84faadec8a4a4635aa3fc7e838433b9859715ebe75e81c13","schema_version":"1.0","event_id":"sha256:1d0f6b641db9da0c84faadec8a4a4635aa3fc7e838433b9859715ebe75e81c13"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TITA6WLINC3AQK2VUOXGFXE6EY/bundle.json","state_url":"https://pith.science/pith/TITA6WLINC3AQK2VUOXGFXE6EY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TITA6WLINC3AQK2VUOXGFXE6EY/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":"2026-06-21T20:33:45Z","links":{"resolver":"https://pith.science/pith/TITA6WLINC3AQK2VUOXGFXE6EY","bundle":"https://pith.science/pith/TITA6WLINC3AQK2VUOXGFXE6EY/bundle.json","state":"https://pith.science/pith/TITA6WLINC3AQK2VUOXGFXE6EY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TITA6WLINC3AQK2VUOXGFXE6EY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:TITA6WLINC3AQK2VUOXGFXE6EY","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":"2bd3477800ef219add15156845e051e2b0e49a00bddb7aa516f27fe655c5c462","cross_cats_sorted":["math.AP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-07-25T19:56:00Z","title_canon_sha256":"d5586cf1e91da239134fea3c58dd16626db9b0069647207f006221636bdf1212"},"schema_version":"1.0","source":{"id":"1407.7024","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.7024","created_at":"2026-05-18T02:46:31Z"},{"alias_kind":"arxiv_version","alias_value":"1407.7024v1","created_at":"2026-05-18T02:46:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.7024","created_at":"2026-05-18T02:46:31Z"},{"alias_kind":"pith_short_12","alias_value":"TITA6WLINC3A","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"TITA6WLINC3AQK2V","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"TITA6WLI","created_at":"2026-05-18T12:28:49Z"}],"graph_snapshots":[{"event_id":"sha256:1d0f6b641db9da0c84faadec8a4a4635aa3fc7e838433b9859715ebe75e81c13","target":"graph","created_at":"2026-05-18T02:46:31Z","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 analyze a (possibly degenerate) second order mean field games system of partial differential equations. The distinguishing features of the model considered are (1) that it is not uniformly parabolic, including the first order case as a possibility, and (2) the coupling is a local operator on the density. As a result we look for weak, not smooth, solutions. Our main result is the existence and uniqueness of suitably defined weak solutions, which are characterized as minimizers of two optimal control problems. We also show that such solutions are stable with respect to the data, so that in pa","authors_text":"Alessio Porretta (DIPMAT), Daniela Tonon (CEREMADE), J. Graber (INRIA Saclay - Ile de France), Pierre Cardaliaguet (CEREMADE)","cross_cats":["math.AP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-07-25T19:56:00Z","title":"Second order mean field games with degenerate diffusion and local coupling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.7024","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":"sha256:4510e1001f27770dc2d341f39f2ae415fcb0ec8c1b9f8ab2b1a8da42781b70cd","target":"record","created_at":"2026-05-18T02:46:31Z","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":"2bd3477800ef219add15156845e051e2b0e49a00bddb7aa516f27fe655c5c462","cross_cats_sorted":["math.AP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-07-25T19:56:00Z","title_canon_sha256":"d5586cf1e91da239134fea3c58dd16626db9b0069647207f006221636bdf1212"},"schema_version":"1.0","source":{"id":"1407.7024","kind":"arxiv","version":1}},"canonical_sha256":"9a260f596868b6082b55a3ae62dc9e2629d74282af064ffd42fc92ed91c57897","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9a260f596868b6082b55a3ae62dc9e2629d74282af064ffd42fc92ed91c57897","first_computed_at":"2026-05-18T02:46:31.882107Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:46:31.882107Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qZs1ocgsbifLcIc0yW1VSYvIzvs0AOqTM6aBECP0RUwIhiu7/ZvCpRL3v+2wIVBM6KV2+OakkIz/oM2YfChTAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:46:31.882539Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.7024","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4510e1001f27770dc2d341f39f2ae415fcb0ec8c1b9f8ab2b1a8da42781b70cd","sha256:1d0f6b641db9da0c84faadec8a4a4635aa3fc7e838433b9859715ebe75e81c13"],"state_sha256":"7a4c954be22948289d7fe229219f0d84d6d6aec399b9cc40bae6db56a2938c06"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yQzcPqdD2kBYoKaIEYOFEkhDpGmSHtB4raimkJGHxD2H8GUjJnCtm78KhE4TSEo9PQJU1SzB5QpF4YJy0U4/Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-21T20:33:45.377420Z","bundle_sha256":"fde2b6aa50d1aaf14034a80c99d6534b7d0430d77d0a418ff7c25182599202ef"}}