{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:FJWSXVHMYVOPFUCASLLRTOU7JF","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":"e74b2a1a812eedd571ff8d59252f0db72f50a319461c505776547f91737b19dc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2026-07-02T17:23:31Z","title_canon_sha256":"190723febf403d172bdffe40d71c150ea64da5f55c15f392af54bbf9581029f1"},"schema_version":"1.0","source":{"id":"2607.02454","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.02454","created_at":"2026-07-03T01:17:59Z"},{"alias_kind":"arxiv_version","alias_value":"2607.02454v1","created_at":"2026-07-03T01:17:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.02454","created_at":"2026-07-03T01:17:59Z"},{"alias_kind":"pith_short_12","alias_value":"FJWSXVHMYVOP","created_at":"2026-07-03T01:17:59Z"},{"alias_kind":"pith_short_16","alias_value":"FJWSXVHMYVOPFUCA","created_at":"2026-07-03T01:17:59Z"},{"alias_kind":"pith_short_8","alias_value":"FJWSXVHM","created_at":"2026-07-03T01:17:59Z"}],"graph_snapshots":[{"event_id":"sha256:719b81f3864a395368bae7f0afb0b5246688c8d06d56100bbab5ed42f437fb9a","target":"graph","created_at":"2026-07-03T01:17:59Z","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/2607.02454/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Starting from the gauge invariant action for free string field theory with boundary recently constructed in 2506.05969, we define new gauge invariant observables which are analogous to the Brown-York charges of General Relativity. Just like the Brown-York charges, our observables originate from a boundary tadpole, and are associated to isometries of the SFT gauge group around a given background. The consistency of the construction requires the equation of motion of the background to be satisfied only at the boundary and therefore these observables can also be defined for backgrounds generated ","authors_text":"Carlo Maccaferri, Jakub Vo\\v{s}mera, Klaus Kaja, Ulisses Portugal","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2026-07-02T17:23:31Z","title":"Boundary observables in string field theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.02454","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":"sha256:629abf36643333fb8a7031116b1ace6de567803ed6d1804d91d892c7d4177ceb","target":"record","created_at":"2026-07-03T01:17:59Z","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":"e74b2a1a812eedd571ff8d59252f0db72f50a319461c505776547f91737b19dc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2026-07-02T17:23:31Z","title_canon_sha256":"190723febf403d172bdffe40d71c150ea64da5f55c15f392af54bbf9581029f1"},"schema_version":"1.0","source":{"id":"2607.02454","kind":"arxiv","version":1}},"canonical_sha256":"2a6d2bd4ecc55cf2d04092d719ba9f4973a61d7a6d5448ad10fa9ab8e5971119","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2a6d2bd4ecc55cf2d04092d719ba9f4973a61d7a6d5448ad10fa9ab8e5971119","first_computed_at":"2026-07-03T01:17:59.634274Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-03T01:17:59.634274Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TMi9w4RHJZ2RLwbRZVFLxOTCuB9Ztio912UQBixhFPvCK40yqOnP/DqCRCoY5uxJ5YsctsoWl9ERZWBgh4gnBA==","signature_status":"signed_v1","signed_at":"2026-07-03T01:17:59.634640Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.02454","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:629abf36643333fb8a7031116b1ace6de567803ed6d1804d91d892c7d4177ceb","sha256:719b81f3864a395368bae7f0afb0b5246688c8d06d56100bbab5ed42f437fb9a"],"state_sha256":"8e7695ef32a7741e59e3a8610b6f068f0d4971894af38a03d1f500d9a9168675"}