{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:XEPRSHJ2XBUUTOZGMIQ3AYWKUV","short_pith_number":"pith:XEPRSHJ2","canonical_record":{"source":{"id":"1402.1686","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-02-07T16:45:21Z","cross_cats_sorted":[],"title_canon_sha256":"667b9a0cd4b72dc09ac0da6d9621dbcc84b09f4bb3ff6eb7a7fb981bb54b6edd","abstract_canon_sha256":"f9fe7a9673af26f13e382f6fb7a7a6557aedaa3c314825c4ee571c0b15124b7a"},"schema_version":"1.0"},"canonical_sha256":"b91f191d3ab86949bb266221b062caa56e95b25a5188e33d9d3d4c26f4a82810","source":{"kind":"arxiv","id":"1402.1686","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.1686","created_at":"2026-05-18T01:44:46Z"},{"alias_kind":"arxiv_version","alias_value":"1402.1686v2","created_at":"2026-05-18T01:44:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.1686","created_at":"2026-05-18T01:44:46Z"},{"alias_kind":"pith_short_12","alias_value":"XEPRSHJ2XBUU","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"XEPRSHJ2XBUUTOZG","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"XEPRSHJ2","created_at":"2026-05-18T12:28:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:XEPRSHJ2XBUUTOZGMIQ3AYWKUV","target":"record","payload":{"canonical_record":{"source":{"id":"1402.1686","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-02-07T16:45:21Z","cross_cats_sorted":[],"title_canon_sha256":"667b9a0cd4b72dc09ac0da6d9621dbcc84b09f4bb3ff6eb7a7fb981bb54b6edd","abstract_canon_sha256":"f9fe7a9673af26f13e382f6fb7a7a6557aedaa3c314825c4ee571c0b15124b7a"},"schema_version":"1.0"},"canonical_sha256":"b91f191d3ab86949bb266221b062caa56e95b25a5188e33d9d3d4c26f4a82810","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:44:46.392440Z","signature_b64":"YSd+QrZmHgKdIGfZp1cYcfQEuazrjbxg2zphPJIfJrx+MttU/wsqQY0seOUBqlb9ALIR1u4KMc2p7Lq7h0MfBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b91f191d3ab86949bb266221b062caa56e95b25a5188e33d9d3d4c26f4a82810","last_reissued_at":"2026-05-18T01:44:46.391884Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:44:46.391884Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1402.1686","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":"2026-05-18T01:44:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/nCQ/q4wWQ1XE6seFLTwMh6VlA1UmkEfGxsmaELOdlrPpLj0jjS4JkIS2oDJj1g7dChQCTGX6C8DZ49rW0O4CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:02:56.552267Z"},"content_sha256":"6a92ed748daf96720161f939bbf596cde28965433b96712fd450f2806f0525bf","schema_version":"1.0","event_id":"sha256:6a92ed748daf96720161f939bbf596cde28965433b96712fd450f2806f0525bf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:XEPRSHJ2XBUUTOZGMIQ3AYWKUV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Note on the CFT Origin of the Strong Constraint of DFT","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Andre Betz, Dieter Lust, Felix Rennecke, Ralph Blumenhagen","submitted_at":"2014-02-07T16:45:21Z","abstract_excerpt":"In double field theory, motivated by its field theoretic consistency, the level matching condition is generalized to the so-called strong constraint. In this note, it is investigated what the two-dimensional conformal field theory origin of this constraint is. Initially treating the left- and right-movers as independent, we compute the torus partition function as well as a generalized Virasoro-Shapiro amplitude. In non-compact directions the strong constraint arises from the factorization of the Virasoro-Shapiro amplitude over physical states as determined by the modular invariant partition fu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.1686","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":"2026-05-18T01:44:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NW97rShz9pq8gXDnZYHfenGJylEwUwLdCRkb9tR20ONeYHsy6YB+8CoywAXd+FVg8JQoSM58NHUy3ITCF53RBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:02:56.552680Z"},"content_sha256":"f03a5183baef0a75717a32c0c61e72f00d487df04810d361611fe38a119d94f6","schema_version":"1.0","event_id":"sha256:f03a5183baef0a75717a32c0c61e72f00d487df04810d361611fe38a119d94f6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XEPRSHJ2XBUUTOZGMIQ3AYWKUV/bundle.json","state_url":"https://pith.science/pith/XEPRSHJ2XBUUTOZGMIQ3AYWKUV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XEPRSHJ2XBUUTOZGMIQ3AYWKUV/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":"2026-05-25T18:02:56Z","links":{"resolver":"https://pith.science/pith/XEPRSHJ2XBUUTOZGMIQ3AYWKUV","bundle":"https://pith.science/pith/XEPRSHJ2XBUUTOZGMIQ3AYWKUV/bundle.json","state":"https://pith.science/pith/XEPRSHJ2XBUUTOZGMIQ3AYWKUV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XEPRSHJ2XBUUTOZGMIQ3AYWKUV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:XEPRSHJ2XBUUTOZGMIQ3AYWKUV","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":"f9fe7a9673af26f13e382f6fb7a7a6557aedaa3c314825c4ee571c0b15124b7a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-02-07T16:45:21Z","title_canon_sha256":"667b9a0cd4b72dc09ac0da6d9621dbcc84b09f4bb3ff6eb7a7fb981bb54b6edd"},"schema_version":"1.0","source":{"id":"1402.1686","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.1686","created_at":"2026-05-18T01:44:46Z"},{"alias_kind":"arxiv_version","alias_value":"1402.1686v2","created_at":"2026-05-18T01:44:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.1686","created_at":"2026-05-18T01:44:46Z"},{"alias_kind":"pith_short_12","alias_value":"XEPRSHJ2XBUU","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"XEPRSHJ2XBUUTOZG","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"XEPRSHJ2","created_at":"2026-05-18T12:28:57Z"}],"graph_snapshots":[{"event_id":"sha256:f03a5183baef0a75717a32c0c61e72f00d487df04810d361611fe38a119d94f6","target":"graph","created_at":"2026-05-18T01:44:46Z","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":"In double field theory, motivated by its field theoretic consistency, the level matching condition is generalized to the so-called strong constraint. In this note, it is investigated what the two-dimensional conformal field theory origin of this constraint is. Initially treating the left- and right-movers as independent, we compute the torus partition function as well as a generalized Virasoro-Shapiro amplitude. In non-compact directions the strong constraint arises from the factorization of the Virasoro-Shapiro amplitude over physical states as determined by the modular invariant partition fu","authors_text":"Andre Betz, Dieter Lust, Felix Rennecke, Ralph Blumenhagen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-02-07T16:45:21Z","title":"A Note on the CFT Origin of the Strong Constraint of DFT"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.1686","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":"sha256:6a92ed748daf96720161f939bbf596cde28965433b96712fd450f2806f0525bf","target":"record","created_at":"2026-05-18T01:44:46Z","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":"f9fe7a9673af26f13e382f6fb7a7a6557aedaa3c314825c4ee571c0b15124b7a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-02-07T16:45:21Z","title_canon_sha256":"667b9a0cd4b72dc09ac0da6d9621dbcc84b09f4bb3ff6eb7a7fb981bb54b6edd"},"schema_version":"1.0","source":{"id":"1402.1686","kind":"arxiv","version":2}},"canonical_sha256":"b91f191d3ab86949bb266221b062caa56e95b25a5188e33d9d3d4c26f4a82810","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b91f191d3ab86949bb266221b062caa56e95b25a5188e33d9d3d4c26f4a82810","first_computed_at":"2026-05-18T01:44:46.391884Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:44:46.391884Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YSd+QrZmHgKdIGfZp1cYcfQEuazrjbxg2zphPJIfJrx+MttU/wsqQY0seOUBqlb9ALIR1u4KMc2p7Lq7h0MfBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:44:46.392440Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.1686","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6a92ed748daf96720161f939bbf596cde28965433b96712fd450f2806f0525bf","sha256:f03a5183baef0a75717a32c0c61e72f00d487df04810d361611fe38a119d94f6"],"state_sha256":"1629d3c5509ced79534aedadcb28b590c7f5109b60de067e564ce106df9973b2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8cyDtHi1ibl6o4hBQGoZMOFWZFtCDxhjOIypNBXHbjRpSts9KhHf4NoSGPOnQp5NO8dyMl8KNVqTmHk59YLIAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T18:02:56.555100Z","bundle_sha256":"a2d6c3e338351342d7fafe92fd7b98b0af6346a1122ed6d0012cd7b02a6a2e5d"}}