{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:DXK62YWABISQNGEOGA5J6XWBJP","short_pith_number":"pith:DXK62YWA","canonical_record":{"source":{"id":"0710.5358","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"2007-10-29T09:18:33Z","cross_cats_sorted":[],"title_canon_sha256":"b06f42d0e3a84091968933052dcb594a4981f664a13252a843a588c5e0ce16e8","abstract_canon_sha256":"eab98a4b302f83496fd9fb7ac08319ff2757e5903bbb7f9e967f278091e029fa"},"schema_version":"1.0"},"canonical_sha256":"1dd5ed62c00a2506988e303a9f5ec14be705187dad91793e3d1e05fcc74c1dc0","source":{"kind":"arxiv","id":"0710.5358","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0710.5358","created_at":"2026-07-04T15:42:42Z"},{"alias_kind":"arxiv_version","alias_value":"0710.5358v2","created_at":"2026-07-04T15:42:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0710.5358","created_at":"2026-07-04T15:42:42Z"},{"alias_kind":"pith_short_12","alias_value":"DXK62YWABISQ","created_at":"2026-07-04T15:42:42Z"},{"alias_kind":"pith_short_16","alias_value":"DXK62YWABISQNGEO","created_at":"2026-07-04T15:42:42Z"},{"alias_kind":"pith_short_8","alias_value":"DXK62YWA","created_at":"2026-07-04T15:42:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:DXK62YWABISQNGEOGA5J6XWBJP","target":"record","payload":{"canonical_record":{"source":{"id":"0710.5358","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"2007-10-29T09:18:33Z","cross_cats_sorted":[],"title_canon_sha256":"b06f42d0e3a84091968933052dcb594a4981f664a13252a843a588c5e0ce16e8","abstract_canon_sha256":"eab98a4b302f83496fd9fb7ac08319ff2757e5903bbb7f9e967f278091e029fa"},"schema_version":"1.0"},"canonical_sha256":"1dd5ed62c00a2506988e303a9f5ec14be705187dad91793e3d1e05fcc74c1dc0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:42:42.564282Z","signature_b64":"zfm3ylNi9gHmnk8ZmJnpNuDI/3AGxxUgHEjLyj2rNuHjOz6m18oAaPQTCMaqDTzERTSN5+udEw1paHMMxZk0Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1dd5ed62c00a2506988e303a9f5ec14be705187dad91793e3d1e05fcc74c1dc0","last_reissued_at":"2026-07-04T15:42:42.563875Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:42:42.563875Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0710.5358","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":"2026-07-04T15:42:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wLrs6XtJIuSp/WnbZHXisNVc+Fh62r5xFrATjGgB9UvHaVWeEJuqHAD6/xsW7d3Fhm98gWakUJv9fUmK9xi9AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T18:35:16.200730Z"},"content_sha256":"2fc3e597baf9ab4edaa48ee989c605a3d3aa76a615ea2698b1d436f019090844","schema_version":"1.0","event_id":"sha256:2fc3e597baf9ab4edaa48ee989c605a3d3aa76a615ea2698b1d436f019090844"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:DXK62YWABISQNGEOGA5J6XWBJP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Level truncation analysis of exact solutions in open string field theory","license":"","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Tomohiko Takahashi","submitted_at":"2007-10-29T09:18:33Z","abstract_excerpt":"We evaluate vacuum energy density of Schnabl's solution using the level truncation calculation and the total action including interaction terms. The level truncated solution provides vacuum energy density expected both for tachyon vacuum and trivial pure gauge. We discuss the role of the phantom term to reproduce correct vacuum energy."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0710.5358","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/0710.5358/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":"2026-07-04T15:42:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WzgR0tpuiJU3RtzFVL+gGX+YM/rxzyYeGt2MtxZKdF+RCM9L9tFJhxEnvGR0kqyq/kp+JPX54aexUA2Rqhq5AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T18:35:16.201648Z"},"content_sha256":"0b4c67d37d9435ea81f0c4ce7d25c292f6752d5b9be357bbd4e04038cf174be8","schema_version":"1.0","event_id":"sha256:0b4c67d37d9435ea81f0c4ce7d25c292f6752d5b9be357bbd4e04038cf174be8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DXK62YWABISQNGEOGA5J6XWBJP/bundle.json","state_url":"https://pith.science/pith/DXK62YWABISQNGEOGA5J6XWBJP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DXK62YWABISQNGEOGA5J6XWBJP/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":"2026-08-17T18:35:16Z","links":{"resolver":"https://pith.science/pith/DXK62YWABISQNGEOGA5J6XWBJP","bundle":"https://pith.science/pith/DXK62YWABISQNGEOGA5J6XWBJP/bundle.json","state":"https://pith.science/pith/DXK62YWABISQNGEOGA5J6XWBJP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DXK62YWABISQNGEOGA5J6XWBJP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:DXK62YWABISQNGEOGA5J6XWBJP","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":"eab98a4b302f83496fd9fb7ac08319ff2757e5903bbb7f9e967f278091e029fa","cross_cats_sorted":[],"license":"","primary_cat":"hep-th","submitted_at":"2007-10-29T09:18:33Z","title_canon_sha256":"b06f42d0e3a84091968933052dcb594a4981f664a13252a843a588c5e0ce16e8"},"schema_version":"1.0","source":{"id":"0710.5358","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0710.5358","created_at":"2026-07-04T15:42:42Z"},{"alias_kind":"arxiv_version","alias_value":"0710.5358v2","created_at":"2026-07-04T15:42:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0710.5358","created_at":"2026-07-04T15:42:42Z"},{"alias_kind":"pith_short_12","alias_value":"DXK62YWABISQ","created_at":"2026-07-04T15:42:42Z"},{"alias_kind":"pith_short_16","alias_value":"DXK62YWABISQNGEO","created_at":"2026-07-04T15:42:42Z"},{"alias_kind":"pith_short_8","alias_value":"DXK62YWA","created_at":"2026-07-04T15:42:42Z"}],"graph_snapshots":[{"event_id":"sha256:0b4c67d37d9435ea81f0c4ce7d25c292f6752d5b9be357bbd4e04038cf174be8","target":"graph","created_at":"2026-07-04T15:42:42Z","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/0710.5358/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We evaluate vacuum energy density of Schnabl's solution using the level truncation calculation and the total action including interaction terms. The level truncated solution provides vacuum energy density expected both for tachyon vacuum and trivial pure gauge. We discuss the role of the phantom term to reproduce correct vacuum energy.","authors_text":"Tomohiko Takahashi","cross_cats":[],"headline":"","license":"","primary_cat":"hep-th","submitted_at":"2007-10-29T09:18:33Z","title":"Level truncation analysis of exact solutions in open string field theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0710.5358","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":"sha256:2fc3e597baf9ab4edaa48ee989c605a3d3aa76a615ea2698b1d436f019090844","target":"record","created_at":"2026-07-04T15:42:42Z","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":"eab98a4b302f83496fd9fb7ac08319ff2757e5903bbb7f9e967f278091e029fa","cross_cats_sorted":[],"license":"","primary_cat":"hep-th","submitted_at":"2007-10-29T09:18:33Z","title_canon_sha256":"b06f42d0e3a84091968933052dcb594a4981f664a13252a843a588c5e0ce16e8"},"schema_version":"1.0","source":{"id":"0710.5358","kind":"arxiv","version":2}},"canonical_sha256":"1dd5ed62c00a2506988e303a9f5ec14be705187dad91793e3d1e05fcc74c1dc0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1dd5ed62c00a2506988e303a9f5ec14be705187dad91793e3d1e05fcc74c1dc0","first_computed_at":"2026-07-04T15:42:42.563875Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:42:42.563875Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zfm3ylNi9gHmnk8ZmJnpNuDI/3AGxxUgHEjLyj2rNuHjOz6m18oAaPQTCMaqDTzERTSN5+udEw1paHMMxZk0Dw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:42:42.564282Z","signed_message":"canonical_sha256_bytes"},"source_id":"0710.5358","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2fc3e597baf9ab4edaa48ee989c605a3d3aa76a615ea2698b1d436f019090844","sha256:0b4c67d37d9435ea81f0c4ce7d25c292f6752d5b9be357bbd4e04038cf174be8"],"state_sha256":"2de549a1cca5fdf8e0fb0639ead981bb5bf9de7c3bda51befaeaf1c01e5cb326"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HPKxh/9igUkE54nwIj9SCIAvaNfVlZAFhX8BtMEF1dBfWCbwMZy8RVux5PDf7WK8G/cx1hwo8wc7T0cNsP9NDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T18:35:16.207721Z","bundle_sha256":"cce530c82119de944c56397acd00adb5298ff7fd10471c170f72fbf7fc61db5d"}}