{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:4G4COUE4MF2VVWPGB2DHYNTI5X","short_pith_number":"pith:4G4COUE4","canonical_record":{"source":{"id":"1507.03164","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-07-11T22:39:30Z","cross_cats_sorted":[],"title_canon_sha256":"2a80a4400591c5c3cbc5ab98f8ace03c3c516f6e97a760d4c891f5e7e2d223f0","abstract_canon_sha256":"e8d086bcbf3f86e4a805b1118197d25f05dfaf301f2cfd2915a4c8bfb50bc032"},"schema_version":"1.0"},"canonical_sha256":"e1b827509c61755ad9e60e867c3668edf6392fefac83ce66cd414ca37d0b6b75","source":{"kind":"arxiv","id":"1507.03164","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.03164","created_at":"2026-05-18T01:04:31Z"},{"alias_kind":"arxiv_version","alias_value":"1507.03164v2","created_at":"2026-05-18T01:04:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.03164","created_at":"2026-05-18T01:04:31Z"},{"alias_kind":"pith_short_12","alias_value":"4G4COUE4MF2V","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"4G4COUE4MF2VVWPG","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"4G4COUE4","created_at":"2026-05-18T12:29:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:4G4COUE4MF2VVWPGB2DHYNTI5X","target":"record","payload":{"canonical_record":{"source":{"id":"1507.03164","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-07-11T22:39:30Z","cross_cats_sorted":[],"title_canon_sha256":"2a80a4400591c5c3cbc5ab98f8ace03c3c516f6e97a760d4c891f5e7e2d223f0","abstract_canon_sha256":"e8d086bcbf3f86e4a805b1118197d25f05dfaf301f2cfd2915a4c8bfb50bc032"},"schema_version":"1.0"},"canonical_sha256":"e1b827509c61755ad9e60e867c3668edf6392fefac83ce66cd414ca37d0b6b75","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:04:31.059614Z","signature_b64":"6TmG4Wd950DdsKB/gsQD37uw/y8lefSZNwkEDBlvd7jVHMN04eLYPeQ+kZdOiTwGw/hrpGUccfCPEVEOMJ90Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e1b827509c61755ad9e60e867c3668edf6392fefac83ce66cd414ca37d0b6b75","last_reissued_at":"2026-05-18T01:04:31.058896Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:04:31.058896Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.03164","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":"2026-05-18T01:04:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fBg66kf5yKKIfziHNwq6OZeInu2Z745r/u6bCsfvwdf6eXsEKw1vtk05BsoFSlaLk8KIGDUW+3+3yBXX6KkmBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T11:07:21.855373Z"},"content_sha256":"b7d0254082741c223a70be729c80743287933ac5971c6580196e24015aaa5099","schema_version":"1.0","event_id":"sha256:b7d0254082741c223a70be729c80743287933ac5971c6580196e24015aaa5099"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:4G4COUE4MF2VVWPGB2DHYNTI5X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Matrix model from string field theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Syoji Zeze","submitted_at":"2015-07-11T22:39:30Z","abstract_excerpt":"We demonstrate that a Hermitian matrix model can be derived from level truncated open string field theory with Chan-Paton factors. The Hermitian matrix is coupled with a scalar and a $U(N)$ vector which are responsible for the D-brane at the tachyon vacuum. Effective potential for the scalar is evaluated both in finite and large $N$. Increase of potential height is observed in both examples. The large $N$ matrix integral is identified with a system of $N$ ZZ branes and a ghost FZZT brane."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.03164","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":"2026-05-18T01:04:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kIaWoVm6nBz152pWJ7JhO1u7ayOZVJSajaHxsXGY6iJEgby7K3aGRFKe28f7LJg1/DryHjw2xjG/OeNpX9KfCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T11:07:21.855710Z"},"content_sha256":"96d4425b5e0358c46a2ce8c6d1c1e55f529c6a1ec514b08bf07fb3af9876155a","schema_version":"1.0","event_id":"sha256:96d4425b5e0358c46a2ce8c6d1c1e55f529c6a1ec514b08bf07fb3af9876155a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4G4COUE4MF2VVWPGB2DHYNTI5X/bundle.json","state_url":"https://pith.science/pith/4G4COUE4MF2VVWPGB2DHYNTI5X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4G4COUE4MF2VVWPGB2DHYNTI5X/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":"2026-07-03T11:07:21Z","links":{"resolver":"https://pith.science/pith/4G4COUE4MF2VVWPGB2DHYNTI5X","bundle":"https://pith.science/pith/4G4COUE4MF2VVWPGB2DHYNTI5X/bundle.json","state":"https://pith.science/pith/4G4COUE4MF2VVWPGB2DHYNTI5X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4G4COUE4MF2VVWPGB2DHYNTI5X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:4G4COUE4MF2VVWPGB2DHYNTI5X","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":"e8d086bcbf3f86e4a805b1118197d25f05dfaf301f2cfd2915a4c8bfb50bc032","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-07-11T22:39:30Z","title_canon_sha256":"2a80a4400591c5c3cbc5ab98f8ace03c3c516f6e97a760d4c891f5e7e2d223f0"},"schema_version":"1.0","source":{"id":"1507.03164","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.03164","created_at":"2026-05-18T01:04:31Z"},{"alias_kind":"arxiv_version","alias_value":"1507.03164v2","created_at":"2026-05-18T01:04:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.03164","created_at":"2026-05-18T01:04:31Z"},{"alias_kind":"pith_short_12","alias_value":"4G4COUE4MF2V","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"4G4COUE4MF2VVWPG","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"4G4COUE4","created_at":"2026-05-18T12:29:05Z"}],"graph_snapshots":[{"event_id":"sha256:96d4425b5e0358c46a2ce8c6d1c1e55f529c6a1ec514b08bf07fb3af9876155a","target":"graph","created_at":"2026-05-18T01:04:31Z","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 demonstrate that a Hermitian matrix model can be derived from level truncated open string field theory with Chan-Paton factors. The Hermitian matrix is coupled with a scalar and a $U(N)$ vector which are responsible for the D-brane at the tachyon vacuum. Effective potential for the scalar is evaluated both in finite and large $N$. Increase of potential height is observed in both examples. The large $N$ matrix integral is identified with a system of $N$ ZZ branes and a ghost FZZT brane.","authors_text":"Syoji Zeze","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-07-11T22:39:30Z","title":"A Matrix model from string field theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.03164","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:b7d0254082741c223a70be729c80743287933ac5971c6580196e24015aaa5099","target":"record","created_at":"2026-05-18T01:04:31Z","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":"e8d086bcbf3f86e4a805b1118197d25f05dfaf301f2cfd2915a4c8bfb50bc032","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-07-11T22:39:30Z","title_canon_sha256":"2a80a4400591c5c3cbc5ab98f8ace03c3c516f6e97a760d4c891f5e7e2d223f0"},"schema_version":"1.0","source":{"id":"1507.03164","kind":"arxiv","version":2}},"canonical_sha256":"e1b827509c61755ad9e60e867c3668edf6392fefac83ce66cd414ca37d0b6b75","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e1b827509c61755ad9e60e867c3668edf6392fefac83ce66cd414ca37d0b6b75","first_computed_at":"2026-05-18T01:04:31.058896Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:04:31.058896Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6TmG4Wd950DdsKB/gsQD37uw/y8lefSZNwkEDBlvd7jVHMN04eLYPeQ+kZdOiTwGw/hrpGUccfCPEVEOMJ90Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:04:31.059614Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.03164","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b7d0254082741c223a70be729c80743287933ac5971c6580196e24015aaa5099","sha256:96d4425b5e0358c46a2ce8c6d1c1e55f529c6a1ec514b08bf07fb3af9876155a"],"state_sha256":"8c6d6ac318055f697909139ee23cf83ce0d9105cdf78fa0ebffd2bbc1927c45b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PDYTT8KUwslyH98HecvAfODwfvISZ1AuUmfyT6S8ZwqbzekQwIweVV68lYhLw8uYEpMImiEZxdrZo32a4fJDDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-03T11:07:21.857494Z","bundle_sha256":"77ed90739631af45b718783c4c7b36ff8e958508a045e1a2d32faf9efca86b8b"}}