{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:3BDTVSBGIQYMWH4VDGQGHI7P7B","short_pith_number":"pith:3BDTVSBG","canonical_record":{"source":{"id":"2401.17361","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2024-01-30T19:00:03Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"cec06f4b849b3e10d65644719bc190212ca6a6230813a1bc81474420209d8e12","abstract_canon_sha256":"5d1db3e0c40eb931b97a4f91b40a0ef27409d0a5189d21ef88b64ecbaf62573b"},"schema_version":"1.0"},"canonical_sha256":"d8473ac8264430cb1f9519a063a3eff84ada151ab2f62ba0700424bbb6af366a","source":{"kind":"arxiv","id":"2401.17361","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.17361","created_at":"2026-07-05T07:39:35Z"},{"alias_kind":"arxiv_version","alias_value":"2401.17361v1","created_at":"2026-07-05T07:39:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.17361","created_at":"2026-07-05T07:39:35Z"},{"alias_kind":"pith_short_12","alias_value":"3BDTVSBGIQYM","created_at":"2026-07-05T07:39:35Z"},{"alias_kind":"pith_short_16","alias_value":"3BDTVSBGIQYMWH4V","created_at":"2026-07-05T07:39:35Z"},{"alias_kind":"pith_short_8","alias_value":"3BDTVSBG","created_at":"2026-07-05T07:39:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:3BDTVSBGIQYMWH4VDGQGHI7P7B","target":"record","payload":{"canonical_record":{"source":{"id":"2401.17361","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2024-01-30T19:00:03Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"cec06f4b849b3e10d65644719bc190212ca6a6230813a1bc81474420209d8e12","abstract_canon_sha256":"5d1db3e0c40eb931b97a4f91b40a0ef27409d0a5189d21ef88b64ecbaf62573b"},"schema_version":"1.0"},"canonical_sha256":"d8473ac8264430cb1f9519a063a3eff84ada151ab2f62ba0700424bbb6af366a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:39:35.821457Z","signature_b64":"YYjm+GmFwTxHQxY080nzqglCEHyQk/1VeRyv6o5ribYmh3cgQ3Lhmok8fmXk5yP6HaXRIddMwVy4vEyMxHnGBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d8473ac8264430cb1f9519a063a3eff84ada151ab2f62ba0700424bbb6af366a","last_reissued_at":"2026-07-05T07:39:35.821121Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:39:35.821121Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2401.17361","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":"2026-07-05T07:39:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SLLxg8UOxl4jpYEiWTJckB/Ee9X312BE8gUkBKrDSfbEIjKdFlKwllLThgWUyiDF/xvQgoj1AlVZBu5fSpxODA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T07:58:45.564584Z"},"content_sha256":"d6093d7dd099e39fcd1fe0c595f747eb4c74b4af0e748bd22af189fcfd1dd48a","schema_version":"1.0","event_id":"sha256:d6093d7dd099e39fcd1fe0c595f747eb4c74b4af0e748bd22af189fcfd1dd48a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:3BDTVSBGIQYMWH4VDGQGHI7P7B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Charges and topology in linearised gravity","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Chris Hull, Maxwell L. Hutt, Ulf Lindstr\\\"om","submitted_at":"2024-01-30T19:00:03Z","abstract_excerpt":"Covariant conserved 2-form currents for linearised gravity are constructed by contracting the linearised curvature with conformal Killing-Yano tensors. The corresponding conserved charges were originally introduced by Penrose and have recently been interpreted as the generators of generalised symmetries of the graviton. We introduce an off-shell refinement of these charges and find the relation between these improved Penrose charges and the linearised version of the ADM momentum and angular momentum. If the graviton field is globally well-defined on a background Minkowski space then some of th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.17361","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2401.17361/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":"2026-07-05T07:39:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p2Wc2QvuMPNV62xx/VFUhpWMx/ymUnBpR3fGYWIpwylsAsMzOHax/HaPZWiftEHeJJ4PuGlJvulnUhd+E18ECQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T07:58:45.565604Z"},"content_sha256":"220568dbecf447f6f381a6aa98f8f06e6de70c897c42fbe92b7aaf5a09128e1a","schema_version":"1.0","event_id":"sha256:220568dbecf447f6f381a6aa98f8f06e6de70c897c42fbe92b7aaf5a09128e1a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3BDTVSBGIQYMWH4VDGQGHI7P7B/bundle.json","state_url":"https://pith.science/pith/3BDTVSBGIQYMWH4VDGQGHI7P7B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3BDTVSBGIQYMWH4VDGQGHI7P7B/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":"2026-08-09T07:58:45Z","links":{"resolver":"https://pith.science/pith/3BDTVSBGIQYMWH4VDGQGHI7P7B","bundle":"https://pith.science/pith/3BDTVSBGIQYMWH4VDGQGHI7P7B/bundle.json","state":"https://pith.science/pith/3BDTVSBGIQYMWH4VDGQGHI7P7B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3BDTVSBGIQYMWH4VDGQGHI7P7B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:3BDTVSBGIQYMWH4VDGQGHI7P7B","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":"5d1db3e0c40eb931b97a4f91b40a0ef27409d0a5189d21ef88b64ecbaf62573b","cross_cats_sorted":["gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2024-01-30T19:00:03Z","title_canon_sha256":"cec06f4b849b3e10d65644719bc190212ca6a6230813a1bc81474420209d8e12"},"schema_version":"1.0","source":{"id":"2401.17361","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.17361","created_at":"2026-07-05T07:39:35Z"},{"alias_kind":"arxiv_version","alias_value":"2401.17361v1","created_at":"2026-07-05T07:39:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.17361","created_at":"2026-07-05T07:39:35Z"},{"alias_kind":"pith_short_12","alias_value":"3BDTVSBGIQYM","created_at":"2026-07-05T07:39:35Z"},{"alias_kind":"pith_short_16","alias_value":"3BDTVSBGIQYMWH4V","created_at":"2026-07-05T07:39:35Z"},{"alias_kind":"pith_short_8","alias_value":"3BDTVSBG","created_at":"2026-07-05T07:39:35Z"}],"graph_snapshots":[{"event_id":"sha256:220568dbecf447f6f381a6aa98f8f06e6de70c897c42fbe92b7aaf5a09128e1a","target":"graph","created_at":"2026-07-05T07:39:35Z","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/2401.17361/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Covariant conserved 2-form currents for linearised gravity are constructed by contracting the linearised curvature with conformal Killing-Yano tensors. The corresponding conserved charges were originally introduced by Penrose and have recently been interpreted as the generators of generalised symmetries of the graviton. We introduce an off-shell refinement of these charges and find the relation between these improved Penrose charges and the linearised version of the ADM momentum and angular momentum. If the graviton field is globally well-defined on a background Minkowski space then some of th","authors_text":"Chris Hull, Maxwell L. Hutt, Ulf Lindstr\\\"om","cross_cats":["gr-qc"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2024-01-30T19:00:03Z","title":"Charges and topology in linearised gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.17361","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:d6093d7dd099e39fcd1fe0c595f747eb4c74b4af0e748bd22af189fcfd1dd48a","target":"record","created_at":"2026-07-05T07:39:35Z","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":"5d1db3e0c40eb931b97a4f91b40a0ef27409d0a5189d21ef88b64ecbaf62573b","cross_cats_sorted":["gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2024-01-30T19:00:03Z","title_canon_sha256":"cec06f4b849b3e10d65644719bc190212ca6a6230813a1bc81474420209d8e12"},"schema_version":"1.0","source":{"id":"2401.17361","kind":"arxiv","version":1}},"canonical_sha256":"d8473ac8264430cb1f9519a063a3eff84ada151ab2f62ba0700424bbb6af366a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d8473ac8264430cb1f9519a063a3eff84ada151ab2f62ba0700424bbb6af366a","first_computed_at":"2026-07-05T07:39:35.821121Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:39:35.821121Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YYjm+GmFwTxHQxY080nzqglCEHyQk/1VeRyv6o5ribYmh3cgQ3Lhmok8fmXk5yP6HaXRIddMwVy4vEyMxHnGBw==","signature_status":"signed_v1","signed_at":"2026-07-05T07:39:35.821457Z","signed_message":"canonical_sha256_bytes"},"source_id":"2401.17361","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d6093d7dd099e39fcd1fe0c595f747eb4c74b4af0e748bd22af189fcfd1dd48a","sha256:220568dbecf447f6f381a6aa98f8f06e6de70c897c42fbe92b7aaf5a09128e1a"],"state_sha256":"2745aca747457aa002091b38d02991a0a54493af19ba583b248d7691500ec702"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1ikBbSM9jAbQvU5MWL22DWhN15mNtb0tZJlqoWWr5/yBzr/XP9bIcmkdeBv+TSTs8Fh1Tu0B9bWHCME3uVY6DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T07:58:45.595934Z","bundle_sha256":"9ebf3bbf29d007cff68578e1daf8db35f94889309cb8065023dd8eca68557186"}}