{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:YVZL3HHJV44LJCEU5NGGW3K6C2","short_pith_number":"pith:YVZL3HHJ","canonical_record":{"source":{"id":"1510.05428","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-10-19T11:24:59Z","cross_cats_sorted":["hep-ph","hep-th"],"title_canon_sha256":"c913739b049870b17e1766598a6378ed0916888ecfd1da4ff46ac6c9ae7c1842","abstract_canon_sha256":"8796f69fa9651f6e2ad836d9ded772ea545855e79044ad937089854d280492fa"},"schema_version":"1.0"},"canonical_sha256":"c572bd9ce9af38b48894eb4c6b6d5e16b5bf988e7f3ace9a1e6314fcca796636","source":{"kind":"arxiv","id":"1510.05428","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.05428","created_at":"2026-05-18T01:21:04Z"},{"alias_kind":"arxiv_version","alias_value":"1510.05428v1","created_at":"2026-05-18T01:21:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.05428","created_at":"2026-05-18T01:21:04Z"},{"alias_kind":"pith_short_12","alias_value":"YVZL3HHJV44L","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_16","alias_value":"YVZL3HHJV44LJCEU","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_8","alias_value":"YVZL3HHJ","created_at":"2026-05-18T12:29:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:YVZL3HHJV44LJCEU5NGGW3K6C2","target":"record","payload":{"canonical_record":{"source":{"id":"1510.05428","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-10-19T11:24:59Z","cross_cats_sorted":["hep-ph","hep-th"],"title_canon_sha256":"c913739b049870b17e1766598a6378ed0916888ecfd1da4ff46ac6c9ae7c1842","abstract_canon_sha256":"8796f69fa9651f6e2ad836d9ded772ea545855e79044ad937089854d280492fa"},"schema_version":"1.0"},"canonical_sha256":"c572bd9ce9af38b48894eb4c6b6d5e16b5bf988e7f3ace9a1e6314fcca796636","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:21:04.359415Z","signature_b64":"U+BCLKViS8XRVlJOs3ED6gywYUr2DcxFiFcTvlzWO+M5CHw6QRvpNYqus6CLeL/3AplyWsq+0mNLgBnLAObJCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c572bd9ce9af38b48894eb4c6b6d5e16b5bf988e7f3ace9a1e6314fcca796636","last_reissued_at":"2026-05-18T01:21:04.358613Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:21:04.358613Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1510.05428","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":"2026-05-18T01:21:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5omJvrfjqifTacVr/nFLGRrsH9qCEWtYqkY7w7xr+1qs2sIJGTSOheLlZdaDmEQl8f4PwodbDRSE6dF4+0HtCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T23:47:42.092336Z"},"content_sha256":"eefa8e64bc5afeb2420f051c5b879366bc19291a23ffb8832302c0e8d4a25b33","schema_version":"1.0","event_id":"sha256:eefa8e64bc5afeb2420f051c5b879366bc19291a23ffb8832302c0e8d4a25b33"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:YVZL3HHJV44LJCEU5NGGW3K6C2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Large N meson masses from a matrix model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","hep-th"],"primary_cat":"hep-lat","authors_text":"Antonio Gonz\\'alez-Arroyo, Masanori Okawa","submitted_at":"2015-10-19T11:24:59Z","abstract_excerpt":"We explain how to compute meson masses in the large $N$ limit using the twisted Eguchi-Kawai model. A very simple formula is derived, and we show how it leads in a fast and efficient way to results which are in fairly good agreement with other determinations. The method is easily extensible to reduced models with dynamical fermions based on the twisted reduction idea."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.05428","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":""},"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":"2026-05-18T01:21:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aTBRgxg34WM5clx/GHvW0BhAcsq+ufYV9J2Xjg88dM8QyGpwu3bNiNeiPK5guVPQd7WCAYbg3hlykwvh4PPTBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T23:47:42.092694Z"},"content_sha256":"84bfd6c7c51ba0364ead76d0b090f0d1ed645a84977ab6ad8e1856a521a46cec","schema_version":"1.0","event_id":"sha256:84bfd6c7c51ba0364ead76d0b090f0d1ed645a84977ab6ad8e1856a521a46cec"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YVZL3HHJV44LJCEU5NGGW3K6C2/bundle.json","state_url":"https://pith.science/pith/YVZL3HHJV44LJCEU5NGGW3K6C2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YVZL3HHJV44LJCEU5NGGW3K6C2/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":"2026-07-01T23:47:42Z","links":{"resolver":"https://pith.science/pith/YVZL3HHJV44LJCEU5NGGW3K6C2","bundle":"https://pith.science/pith/YVZL3HHJV44LJCEU5NGGW3K6C2/bundle.json","state":"https://pith.science/pith/YVZL3HHJV44LJCEU5NGGW3K6C2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YVZL3HHJV44LJCEU5NGGW3K6C2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:YVZL3HHJV44LJCEU5NGGW3K6C2","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":"8796f69fa9651f6e2ad836d9ded772ea545855e79044ad937089854d280492fa","cross_cats_sorted":["hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-10-19T11:24:59Z","title_canon_sha256":"c913739b049870b17e1766598a6378ed0916888ecfd1da4ff46ac6c9ae7c1842"},"schema_version":"1.0","source":{"id":"1510.05428","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.05428","created_at":"2026-05-18T01:21:04Z"},{"alias_kind":"arxiv_version","alias_value":"1510.05428v1","created_at":"2026-05-18T01:21:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.05428","created_at":"2026-05-18T01:21:04Z"},{"alias_kind":"pith_short_12","alias_value":"YVZL3HHJV44L","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_16","alias_value":"YVZL3HHJV44LJCEU","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_8","alias_value":"YVZL3HHJ","created_at":"2026-05-18T12:29:52Z"}],"graph_snapshots":[{"event_id":"sha256:84bfd6c7c51ba0364ead76d0b090f0d1ed645a84977ab6ad8e1856a521a46cec","target":"graph","created_at":"2026-05-18T01:21:04Z","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 explain how to compute meson masses in the large $N$ limit using the twisted Eguchi-Kawai model. A very simple formula is derived, and we show how it leads in a fast and efficient way to results which are in fairly good agreement with other determinations. The method is easily extensible to reduced models with dynamical fermions based on the twisted reduction idea.","authors_text":"Antonio Gonz\\'alez-Arroyo, Masanori Okawa","cross_cats":["hep-ph","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-10-19T11:24:59Z","title":"Large N meson masses from a matrix model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.05428","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:eefa8e64bc5afeb2420f051c5b879366bc19291a23ffb8832302c0e8d4a25b33","target":"record","created_at":"2026-05-18T01:21:04Z","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":"8796f69fa9651f6e2ad836d9ded772ea545855e79044ad937089854d280492fa","cross_cats_sorted":["hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-10-19T11:24:59Z","title_canon_sha256":"c913739b049870b17e1766598a6378ed0916888ecfd1da4ff46ac6c9ae7c1842"},"schema_version":"1.0","source":{"id":"1510.05428","kind":"arxiv","version":1}},"canonical_sha256":"c572bd9ce9af38b48894eb4c6b6d5e16b5bf988e7f3ace9a1e6314fcca796636","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c572bd9ce9af38b48894eb4c6b6d5e16b5bf988e7f3ace9a1e6314fcca796636","first_computed_at":"2026-05-18T01:21:04.358613Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:21:04.358613Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"U+BCLKViS8XRVlJOs3ED6gywYUr2DcxFiFcTvlzWO+M5CHw6QRvpNYqus6CLeL/3AplyWsq+0mNLgBnLAObJCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:21:04.359415Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.05428","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eefa8e64bc5afeb2420f051c5b879366bc19291a23ffb8832302c0e8d4a25b33","sha256:84bfd6c7c51ba0364ead76d0b090f0d1ed645a84977ab6ad8e1856a521a46cec"],"state_sha256":"27ce4a267e03d8da741d87143bfec4076267c821aaf8b52da3c37102540760f3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AIzok9VDnWGnuaCZWPzX7NFKleRI4nqbq82a9gZCNBDg+ZXDiX9FD0oa7Ie2NU8iYxmd86aVvB3XgQHDXHY2Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-01T23:47:42.094771Z","bundle_sha256":"a741796861996b3d1f3dc9ccfb7720719f773f5aadf1188026fdcbbaaf903473"}}