{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:L4YXC2N56465QQYAAKSSXYTT3O","short_pith_number":"pith:L4YXC2N5","canonical_record":{"source":{"id":"1904.12786","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-04-29T15:58:24Z","cross_cats_sorted":["gr-qc","math-ph","math.MP"],"title_canon_sha256":"ac2c03e29d3626b9d1e1463f53f562f85978dfbbf10a29dd00741c12f44c706c","abstract_canon_sha256":"8285e623776feca209f9342e05fe3c705c94d3c9ffabbaafe090de136340b9fb"},"schema_version":"1.0"},"canonical_sha256":"5f317169bdf73dd8430002a52be273db8064d0db817f7a5693a591b6c48a1b72","source":{"kind":"arxiv","id":"1904.12786","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.12786","created_at":"2026-07-05T00:01:50Z"},{"alias_kind":"arxiv_version","alias_value":"1904.12786v2","created_at":"2026-07-05T00:01:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.12786","created_at":"2026-07-05T00:01:50Z"},{"alias_kind":"pith_short_12","alias_value":"L4YXC2N56465","created_at":"2026-07-05T00:01:50Z"},{"alias_kind":"pith_short_16","alias_value":"L4YXC2N56465QQYA","created_at":"2026-07-05T00:01:50Z"},{"alias_kind":"pith_short_8","alias_value":"L4YXC2N5","created_at":"2026-07-05T00:01:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:L4YXC2N56465QQYAAKSSXYTT3O","target":"record","payload":{"canonical_record":{"source":{"id":"1904.12786","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-04-29T15:58:24Z","cross_cats_sorted":["gr-qc","math-ph","math.MP"],"title_canon_sha256":"ac2c03e29d3626b9d1e1463f53f562f85978dfbbf10a29dd00741c12f44c706c","abstract_canon_sha256":"8285e623776feca209f9342e05fe3c705c94d3c9ffabbaafe090de136340b9fb"},"schema_version":"1.0"},"canonical_sha256":"5f317169bdf73dd8430002a52be273db8064d0db817f7a5693a591b6c48a1b72","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:01:50.348500Z","signature_b64":"kG+5JkFeAPZj8EOugJMBNc5mVd9iYT8w+Rl4KzxidlfVTpW1MBnLbHgYjrb/6PEYfLJOXzBVXZZ3sWMhClP7Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f317169bdf73dd8430002a52be273db8064d0db817f7a5693a591b6c48a1b72","last_reissued_at":"2026-07-05T00:01:50.348151Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:01:50.348151Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.12786","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T00:01:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vzBroNKIcO45fXzrCg7G2JgcFzFwbLUlgZI+Hz48xZi1da82xSt1POkUmnc9360ACUWTy67oHqFBpCXfaLw1BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T00:11:34.974617Z"},"content_sha256":"dab52d4ae82985fa95e9d637fcc5d4bdcc46cb81e0949d558b6839295fa0c8d5","schema_version":"1.0","event_id":"sha256:dab52d4ae82985fa95e9d637fcc5d4bdcc46cb81e0949d558b6839295fa0c8d5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:L4YXC2N56465QQYAAKSSXYTT3O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extended $D=3$ Bargmann supergravity from a Lie algebra expansion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","math-ph","math.MP"],"primary_cat":"hep-th","authors_text":"Diego G\\'utiez, Jos\\'e A. de Azc\\'arraga, Jos\\'e M. Izquierdo","submitted_at":"2019-04-29T15:58:24Z","abstract_excerpt":"In this paper we show how the method of Lie algebra expansions may be used to obtain, in a simple way, both the extended Bargmann Lie superalgebra and the Chern-Simons action associated to it in three dimensions, starting from $D=3$, $\\mathcal{N}=2$ superPoincar\\'e and its corresponding Chern-Simons supergravity."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.12786","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1904.12786/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T00:01:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FtqDtBaGBQLbdpxLamV5gaCR87DgNJowQcMx9BQEmnnheSrCl5VfCM15Jd1VrT3YYrG2HeR3UR9Ej1UpweYeBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T00:11:34.975120Z"},"content_sha256":"5328af351aa2ced03c19c75af3908bc67758acb0c5432c69b7825457c2c0d14a","schema_version":"1.0","event_id":"sha256:5328af351aa2ced03c19c75af3908bc67758acb0c5432c69b7825457c2c0d14a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L4YXC2N56465QQYAAKSSXYTT3O/bundle.json","state_url":"https://pith.science/pith/L4YXC2N56465QQYAAKSSXYTT3O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L4YXC2N56465QQYAAKSSXYTT3O/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":"2026-08-05T00:11:34Z","links":{"resolver":"https://pith.science/pith/L4YXC2N56465QQYAAKSSXYTT3O","bundle":"https://pith.science/pith/L4YXC2N56465QQYAAKSSXYTT3O/bundle.json","state":"https://pith.science/pith/L4YXC2N56465QQYAAKSSXYTT3O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L4YXC2N56465QQYAAKSSXYTT3O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:L4YXC2N56465QQYAAKSSXYTT3O","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":"8285e623776feca209f9342e05fe3c705c94d3c9ffabbaafe090de136340b9fb","cross_cats_sorted":["gr-qc","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-04-29T15:58:24Z","title_canon_sha256":"ac2c03e29d3626b9d1e1463f53f562f85978dfbbf10a29dd00741c12f44c706c"},"schema_version":"1.0","source":{"id":"1904.12786","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.12786","created_at":"2026-07-05T00:01:50Z"},{"alias_kind":"arxiv_version","alias_value":"1904.12786v2","created_at":"2026-07-05T00:01:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.12786","created_at":"2026-07-05T00:01:50Z"},{"alias_kind":"pith_short_12","alias_value":"L4YXC2N56465","created_at":"2026-07-05T00:01:50Z"},{"alias_kind":"pith_short_16","alias_value":"L4YXC2N56465QQYA","created_at":"2026-07-05T00:01:50Z"},{"alias_kind":"pith_short_8","alias_value":"L4YXC2N5","created_at":"2026-07-05T00:01:50Z"}],"graph_snapshots":[{"event_id":"sha256:5328af351aa2ced03c19c75af3908bc67758acb0c5432c69b7825457c2c0d14a","target":"graph","created_at":"2026-07-05T00:01:50Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1904.12786/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper we show how the method of Lie algebra expansions may be used to obtain, in a simple way, both the extended Bargmann Lie superalgebra and the Chern-Simons action associated to it in three dimensions, starting from $D=3$, $\\mathcal{N}=2$ superPoincar\\'e and its corresponding Chern-Simons supergravity.","authors_text":"Diego G\\'utiez, Jos\\'e A. de Azc\\'arraga, Jos\\'e M. Izquierdo","cross_cats":["gr-qc","math-ph","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-04-29T15:58:24Z","title":"Extended $D=3$ Bargmann supergravity from a Lie algebra expansion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.12786","kind":"arxiv","version":2},"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:dab52d4ae82985fa95e9d637fcc5d4bdcc46cb81e0949d558b6839295fa0c8d5","target":"record","created_at":"2026-07-05T00:01:50Z","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":"8285e623776feca209f9342e05fe3c705c94d3c9ffabbaafe090de136340b9fb","cross_cats_sorted":["gr-qc","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-04-29T15:58:24Z","title_canon_sha256":"ac2c03e29d3626b9d1e1463f53f562f85978dfbbf10a29dd00741c12f44c706c"},"schema_version":"1.0","source":{"id":"1904.12786","kind":"arxiv","version":2}},"canonical_sha256":"5f317169bdf73dd8430002a52be273db8064d0db817f7a5693a591b6c48a1b72","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f317169bdf73dd8430002a52be273db8064d0db817f7a5693a591b6c48a1b72","first_computed_at":"2026-07-05T00:01:50.348151Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:01:50.348151Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kG+5JkFeAPZj8EOugJMBNc5mVd9iYT8w+Rl4KzxidlfVTpW1MBnLbHgYjrb/6PEYfLJOXzBVXZZ3sWMhClP7Cg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:01:50.348500Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.12786","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dab52d4ae82985fa95e9d637fcc5d4bdcc46cb81e0949d558b6839295fa0c8d5","sha256:5328af351aa2ced03c19c75af3908bc67758acb0c5432c69b7825457c2c0d14a"],"state_sha256":"05095f848ee9ec679522459e5ada36c989f022942de0a04c01ec213889fa9e78"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9T3Qkjf5/gk8+HdUeyLe2p+MDfBEk5vhgC562x/6Zlf7IVAR1F06leyNE3O+Qc5DyV3DV3aYfkiwvsjD8PbOCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T00:11:34.979320Z","bundle_sha256":"0a7e3e3b4919eed4537dc0c8bff2187dbfc3d57ef6dbe525c4070c826622efcf"}}