{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:QXQQ4KADQLFEHKUH4CRNHBISM3","short_pith_number":"pith:QXQQ4KAD","canonical_record":{"source":{"id":"1409.1890","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-09-05T17:43:49Z","cross_cats_sorted":[],"title_canon_sha256":"06c8eba844a4aacfab5866b87fa833ddfc1052718df22eb9dcf237442befb11b","abstract_canon_sha256":"c374b6216ebda0f01bc039ee7653033986377ef10dd6e1fa6221fa74b0123302"},"schema_version":"1.0"},"canonical_sha256":"85e10e280382ca43aa87e0a2d3851266f30022e16e015db218b1255a13b6342f","source":{"kind":"arxiv","id":"1409.1890","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.1890","created_at":"2026-05-18T02:31:37Z"},{"alias_kind":"arxiv_version","alias_value":"1409.1890v2","created_at":"2026-05-18T02:31:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.1890","created_at":"2026-05-18T02:31:37Z"},{"alias_kind":"pith_short_12","alias_value":"QXQQ4KADQLFE","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"QXQQ4KADQLFEHKUH","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"QXQQ4KAD","created_at":"2026-05-18T12:28:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:QXQQ4KADQLFEHKUH4CRNHBISM3","target":"record","payload":{"canonical_record":{"source":{"id":"1409.1890","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-09-05T17:43:49Z","cross_cats_sorted":[],"title_canon_sha256":"06c8eba844a4aacfab5866b87fa833ddfc1052718df22eb9dcf237442befb11b","abstract_canon_sha256":"c374b6216ebda0f01bc039ee7653033986377ef10dd6e1fa6221fa74b0123302"},"schema_version":"1.0"},"canonical_sha256":"85e10e280382ca43aa87e0a2d3851266f30022e16e015db218b1255a13b6342f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:31:37.906816Z","signature_b64":"2Q7huDNxfwgskRuZ0tVp4tNxbPSM+SQHUS0TBnlgFoujZ/K/KQifylfeoP8JW68ruV9kFmd+N9jTfK4oIcDODQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"85e10e280382ca43aa87e0a2d3851266f30022e16e015db218b1255a13b6342f","last_reissued_at":"2026-05-18T02:31:37.906273Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:31:37.906273Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1409.1890","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":"2026-05-18T02:31:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Rjr+WbYWJrKFktMfO/+qBFbODDJJylzL8r8YoEvPIx+ytH0Dc8LvBJ3SImpdh1z4xnKBtV959tb8Buv4wHFHAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T02:03:49.682998Z"},"content_sha256":"8094f8746e9d52ca7b1fe0401b402101a50d73162bc0ea3becc2d5204eba28c2","schema_version":"1.0","event_id":"sha256:8094f8746e9d52ca7b1fe0401b402101a50d73162bc0ea3becc2d5204eba28c2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:QXQQ4KADQLFEHKUH4CRNHBISM3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Level truncation analysis of a simple tachyon vacuum solution in cubic superstring field theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"E. Aldo Arroyo","submitted_at":"2014-09-05T17:43:49Z","abstract_excerpt":"We evaluate the vacuum energy of a simple tachyon vacuum solution using the level truncation scheme in cubic superstring field theory. By truncating the standard Virasoro $L_0$ level expansion of the solution, we obtain a value of the vacuum energy in agreement with Sen's first conjecture."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.1890","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":""},"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":"2026-05-18T02:31:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XchfcFplBOL/AAe3AI2+tfSx2Z7CxiOEQMXZq7UP6gYYBRoCluu/zz6/F9neFtbmw11u8Owxc6mKAmu0UeI8BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T02:03:49.683365Z"},"content_sha256":"903d8a358cc1e95adc4fde1cbae4c9d3cafe664aaab149e5fd1b781149e9a097","schema_version":"1.0","event_id":"sha256:903d8a358cc1e95adc4fde1cbae4c9d3cafe664aaab149e5fd1b781149e9a097"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QXQQ4KADQLFEHKUH4CRNHBISM3/bundle.json","state_url":"https://pith.science/pith/QXQQ4KADQLFEHKUH4CRNHBISM3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QXQQ4KADQLFEHKUH4CRNHBISM3/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":"2026-06-29T02:03:49Z","links":{"resolver":"https://pith.science/pith/QXQQ4KADQLFEHKUH4CRNHBISM3","bundle":"https://pith.science/pith/QXQQ4KADQLFEHKUH4CRNHBISM3/bundle.json","state":"https://pith.science/pith/QXQQ4KADQLFEHKUH4CRNHBISM3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QXQQ4KADQLFEHKUH4CRNHBISM3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:QXQQ4KADQLFEHKUH4CRNHBISM3","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":"c374b6216ebda0f01bc039ee7653033986377ef10dd6e1fa6221fa74b0123302","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-09-05T17:43:49Z","title_canon_sha256":"06c8eba844a4aacfab5866b87fa833ddfc1052718df22eb9dcf237442befb11b"},"schema_version":"1.0","source":{"id":"1409.1890","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.1890","created_at":"2026-05-18T02:31:37Z"},{"alias_kind":"arxiv_version","alias_value":"1409.1890v2","created_at":"2026-05-18T02:31:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.1890","created_at":"2026-05-18T02:31:37Z"},{"alias_kind":"pith_short_12","alias_value":"QXQQ4KADQLFE","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"QXQQ4KADQLFEHKUH","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"QXQQ4KAD","created_at":"2026-05-18T12:28:46Z"}],"graph_snapshots":[{"event_id":"sha256:903d8a358cc1e95adc4fde1cbae4c9d3cafe664aaab149e5fd1b781149e9a097","target":"graph","created_at":"2026-05-18T02:31:37Z","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 evaluate the vacuum energy of a simple tachyon vacuum solution using the level truncation scheme in cubic superstring field theory. By truncating the standard Virasoro $L_0$ level expansion of the solution, we obtain a value of the vacuum energy in agreement with Sen's first conjecture.","authors_text":"E. Aldo Arroyo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-09-05T17:43:49Z","title":"Level truncation analysis of a simple tachyon vacuum solution in cubic superstring field theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.1890","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":"sha256:8094f8746e9d52ca7b1fe0401b402101a50d73162bc0ea3becc2d5204eba28c2","target":"record","created_at":"2026-05-18T02:31:37Z","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":"c374b6216ebda0f01bc039ee7653033986377ef10dd6e1fa6221fa74b0123302","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-09-05T17:43:49Z","title_canon_sha256":"06c8eba844a4aacfab5866b87fa833ddfc1052718df22eb9dcf237442befb11b"},"schema_version":"1.0","source":{"id":"1409.1890","kind":"arxiv","version":2}},"canonical_sha256":"85e10e280382ca43aa87e0a2d3851266f30022e16e015db218b1255a13b6342f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"85e10e280382ca43aa87e0a2d3851266f30022e16e015db218b1255a13b6342f","first_computed_at":"2026-05-18T02:31:37.906273Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:31:37.906273Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2Q7huDNxfwgskRuZ0tVp4tNxbPSM+SQHUS0TBnlgFoujZ/K/KQifylfeoP8JW68ruV9kFmd+N9jTfK4oIcDODQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:31:37.906816Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.1890","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8094f8746e9d52ca7b1fe0401b402101a50d73162bc0ea3becc2d5204eba28c2","sha256:903d8a358cc1e95adc4fde1cbae4c9d3cafe664aaab149e5fd1b781149e9a097"],"state_sha256":"6fa3c92afcb6e8539fbbca4feaa6cd348f754cae12ea2aa6420076d02cb8d1a6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S2yp5ZHpP2tuABJ6b9dZiUY1ZbJxvF6oddqc/jpjH4AqSiVa5Gmvt/k7GapurW5sQP2E+HTtQh5cYA2t6oK1AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-29T02:03:49.685248Z","bundle_sha256":"2c9f47a23c8cd6c723f088aba911ec55e1d0dcf3519de07ca7f42b8897117e14"}}