{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:IPSFQPYTZKNZYVCOUCMEISOLWU","short_pith_number":"pith:IPSFQPYT","canonical_record":{"source":{"id":"2411.09748","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2024-11-14T19:03:04Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"d595ca3eea69784538105a873773925c3ffd81483f4e61254b16ece6c7e72757","abstract_canon_sha256":"5cd40d8c2f62a54fe324ff95f2c4a34dad3139a4460ec8cb2192b78b76051446"},"schema_version":"1.0"},"canonical_sha256":"43e4583f13ca9b9c544ea0984449cbb50696fb85ac7159d99726f8edd7acabb5","source":{"kind":"arxiv","id":"2411.09748","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.09748","created_at":"2026-07-05T10:16:39Z"},{"alias_kind":"arxiv_version","alias_value":"2411.09748v3","created_at":"2026-07-05T10:16:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.09748","created_at":"2026-07-05T10:16:39Z"},{"alias_kind":"pith_short_12","alias_value":"IPSFQPYTZKNZ","created_at":"2026-07-05T10:16:39Z"},{"alias_kind":"pith_short_16","alias_value":"IPSFQPYTZKNZYVCO","created_at":"2026-07-05T10:16:39Z"},{"alias_kind":"pith_short_8","alias_value":"IPSFQPYT","created_at":"2026-07-05T10:16:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:IPSFQPYTZKNZYVCOUCMEISOLWU","target":"record","payload":{"canonical_record":{"source":{"id":"2411.09748","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2024-11-14T19:03:04Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"d595ca3eea69784538105a873773925c3ffd81483f4e61254b16ece6c7e72757","abstract_canon_sha256":"5cd40d8c2f62a54fe324ff95f2c4a34dad3139a4460ec8cb2192b78b76051446"},"schema_version":"1.0"},"canonical_sha256":"43e4583f13ca9b9c544ea0984449cbb50696fb85ac7159d99726f8edd7acabb5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:16:39.424197Z","signature_b64":"0r5KWHeQRv+iU3lLueJRW32WdhoMI2H5CQWYYOf5hAJ89bbjh3eKy0U+32TrA7Etq87OUnVEMR4vcoROtp3xDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"43e4583f13ca9b9c544ea0984449cbb50696fb85ac7159d99726f8edd7acabb5","last_reissued_at":"2026-07-05T10:16:39.423699Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:16:39.423699Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2411.09748","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:16:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gcbeBy67P/J4egQJmPHWcX+rIjPq1H6ZuKBWKTIewp7wDhvfftmys16NY3xWIgRv+xvZwWdpL0719Rb5pK2cAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T17:55:17.617372Z"},"content_sha256":"9a7d93de66a1df74a811dd58aab104b6ae853265a603ba49809888a282a486e4","schema_version":"1.0","event_id":"sha256:9a7d93de66a1df74a811dd58aab104b6ae853265a603ba49809888a282a486e4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:IPSFQPYTZKNZYVCOUCMEISOLWU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Canonical analysis of unimodular Pleba\\'nski gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Elliot Nash, Steffen Gielen","submitted_at":"2024-11-14T19:03:04Z","abstract_excerpt":"We present the canonical analysis of different versions of unimodular gravity defined in the Pleba\\'nski formalism, based on a (generally complex) SO(3) spin connection and set of (self-dual) two-forms. As in the metric formulation of unimodular gravity, one can study either a theory with fixed volume form or work in a parametrised formalism in which the cosmological constant becomes a dynamical field, constrained to be constant by the field equations. In the first case, the Hamiltonian density contains a part which is not constrained to vanish, but rather constrained to be constant, again as "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.09748","kind":"arxiv","version":3},"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/2411.09748/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":"2026-07-05T10:16:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pbpG5MEuqwRNKW6eU0V5nC8p+50y1a5P6qRNy9K6nrBWPep0o9jtq6BW6MC2ymuiH9sJavam1wur8w113juTCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T17:55:17.617975Z"},"content_sha256":"33989d66dce00e5ad677fb26e7b9d6bc49974e68b2fa49f5c35604d642863635","schema_version":"1.0","event_id":"sha256:33989d66dce00e5ad677fb26e7b9d6bc49974e68b2fa49f5c35604d642863635"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IPSFQPYTZKNZYVCOUCMEISOLWU/bundle.json","state_url":"https://pith.science/pith/IPSFQPYTZKNZYVCOUCMEISOLWU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IPSFQPYTZKNZYVCOUCMEISOLWU/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":"2026-08-02T17:55:17Z","links":{"resolver":"https://pith.science/pith/IPSFQPYTZKNZYVCOUCMEISOLWU","bundle":"https://pith.science/pith/IPSFQPYTZKNZYVCOUCMEISOLWU/bundle.json","state":"https://pith.science/pith/IPSFQPYTZKNZYVCOUCMEISOLWU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IPSFQPYTZKNZYVCOUCMEISOLWU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:IPSFQPYTZKNZYVCOUCMEISOLWU","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":"5cd40d8c2f62a54fe324ff95f2c4a34dad3139a4460ec8cb2192b78b76051446","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2024-11-14T19:03:04Z","title_canon_sha256":"d595ca3eea69784538105a873773925c3ffd81483f4e61254b16ece6c7e72757"},"schema_version":"1.0","source":{"id":"2411.09748","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.09748","created_at":"2026-07-05T10:16:39Z"},{"alias_kind":"arxiv_version","alias_value":"2411.09748v3","created_at":"2026-07-05T10:16:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.09748","created_at":"2026-07-05T10:16:39Z"},{"alias_kind":"pith_short_12","alias_value":"IPSFQPYTZKNZ","created_at":"2026-07-05T10:16:39Z"},{"alias_kind":"pith_short_16","alias_value":"IPSFQPYTZKNZYVCO","created_at":"2026-07-05T10:16:39Z"},{"alias_kind":"pith_short_8","alias_value":"IPSFQPYT","created_at":"2026-07-05T10:16:39Z"}],"graph_snapshots":[{"event_id":"sha256:33989d66dce00e5ad677fb26e7b9d6bc49974e68b2fa49f5c35604d642863635","target":"graph","created_at":"2026-07-05T10:16:39Z","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/2411.09748/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the canonical analysis of different versions of unimodular gravity defined in the Pleba\\'nski formalism, based on a (generally complex) SO(3) spin connection and set of (self-dual) two-forms. As in the metric formulation of unimodular gravity, one can study either a theory with fixed volume form or work in a parametrised formalism in which the cosmological constant becomes a dynamical field, constrained to be constant by the field equations. In the first case, the Hamiltonian density contains a part which is not constrained to vanish, but rather constrained to be constant, again as ","authors_text":"Elliot Nash, Steffen Gielen","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2024-11-14T19:03:04Z","title":"Canonical analysis of unimodular Pleba\\'nski gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.09748","kind":"arxiv","version":3},"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":"sha256:9a7d93de66a1df74a811dd58aab104b6ae853265a603ba49809888a282a486e4","target":"record","created_at":"2026-07-05T10:16:39Z","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":"5cd40d8c2f62a54fe324ff95f2c4a34dad3139a4460ec8cb2192b78b76051446","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2024-11-14T19:03:04Z","title_canon_sha256":"d595ca3eea69784538105a873773925c3ffd81483f4e61254b16ece6c7e72757"},"schema_version":"1.0","source":{"id":"2411.09748","kind":"arxiv","version":3}},"canonical_sha256":"43e4583f13ca9b9c544ea0984449cbb50696fb85ac7159d99726f8edd7acabb5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"43e4583f13ca9b9c544ea0984449cbb50696fb85ac7159d99726f8edd7acabb5","first_computed_at":"2026-07-05T10:16:39.423699Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:16:39.423699Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0r5KWHeQRv+iU3lLueJRW32WdhoMI2H5CQWYYOf5hAJ89bbjh3eKy0U+32TrA7Etq87OUnVEMR4vcoROtp3xDg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:16:39.424197Z","signed_message":"canonical_sha256_bytes"},"source_id":"2411.09748","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9a7d93de66a1df74a811dd58aab104b6ae853265a603ba49809888a282a486e4","sha256:33989d66dce00e5ad677fb26e7b9d6bc49974e68b2fa49f5c35604d642863635"],"state_sha256":"f9675d9b8cc63796f99a0ed198fde776c819a37592f0deab49cc3c783c575127"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ywSpR9DBsKgiT1QMinPWhrgEtqnlPlnJ7flZT3IWTqq7aXJe93Mip5oIe8DYHiTGRgni5K1v0lJ0sJByQSToAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-02T17:55:17.623365Z","bundle_sha256":"eb3ef178c20e705bc19a21982d24cec5da8e536f37dbd9e409a0e0a5b4f10e8f"}}