{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:7PPHECN4AZ7MAT75SNVEJNKZFM","short_pith_number":"pith:7PPHECN4","canonical_record":{"source":{"id":"0912.2347","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2009-12-14T09:47:05Z","cross_cats_sorted":[],"title_canon_sha256":"c395e2e5e2906433001b984e66d0e07b604fe29aa9d4cf7db4c0ebdba28e71d8","abstract_canon_sha256":"671009bd6ae20871c119fedb89d2f72606fbb63478efea4c295076394455f987"},"schema_version":"1.0"},"canonical_sha256":"fbde7209bc067ec04ffd936a44b5592b2d0f5ed67598758bde06737fd85115a3","source":{"kind":"arxiv","id":"0912.2347","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.2347","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"arxiv_version","alias_value":"0912.2347v1","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.2347","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"pith_short_12","alias_value":"7PPHECN4AZ7M","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"7PPHECN4AZ7MAT75","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"7PPHECN4","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:7PPHECN4AZ7MAT75SNVEJNKZFM","target":"record","payload":{"canonical_record":{"source":{"id":"0912.2347","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2009-12-14T09:47:05Z","cross_cats_sorted":[],"title_canon_sha256":"c395e2e5e2906433001b984e66d0e07b604fe29aa9d4cf7db4c0ebdba28e71d8","abstract_canon_sha256":"671009bd6ae20871c119fedb89d2f72606fbb63478efea4c295076394455f987"},"schema_version":"1.0"},"canonical_sha256":"fbde7209bc067ec04ffd936a44b5592b2d0f5ed67598758bde06737fd85115a3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:33:56.770027Z","signature_b64":"LqJdVDl9lYaBupZLHzfK0o1dXpKyUcuZXHW5XhC7o7Q0gI3zrfJcZC7S27wmaOm0JUkyBjgeheE6dwa87F+cDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fbde7209bc067ec04ffd936a44b5592b2d0f5ed67598758bde06737fd85115a3","last_reissued_at":"2026-05-18T02:33:56.769641Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:33:56.769641Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0912.2347","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":"2026-05-18T02:33:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OcH5ddsFUzQNfTwisNW9vdsTWNTlCHp6hJvQixXto7GBI/MPSMC8D9chrdAdXffotciDsoKdEGsIT/8I/dXXCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T23:27:57.379867Z"},"content_sha256":"533ee6d4c37441b79d6aa505cf0227dbd48a002a347902f4843aaf746094bed0","schema_version":"1.0","event_id":"sha256:533ee6d4c37441b79d6aa505cf0227dbd48a002a347902f4843aaf746094bed0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:7PPHECN4AZ7MAT75SNVEJNKZFM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the Relation between Hybrid and Pure Spinor String Theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Ingo Kirsch, Sebastian Gerigk","submitted_at":"2009-12-14T09:47:05Z","abstract_excerpt":"In this paper we revisit Berkovits' pure spinor formalism in lower dimensions. We are particularly interested in relating a six-dimensional pure spinor action previously constructed in the literature to other superstring formalisms. In order to gain some insight into six-dimensional pure spinors, we first derive their action by gauge-fixing the classical six-dimensional Green-Schwarz action. We then consider a hybrid pure spinor construction in which the spacetime symmetries of six of the ten dimensions are described in pure spinor variables, while the remaining four dimensions are parameteriz"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.2347","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":"2026-05-18T02:33:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l+dc0SkBE2F8XeAa51zU54dZ4hq7bwe+f2p4ft8yrZtJQ6g5WI2OJiRaiqSNiMOfbC5uujFu4SlWOKB7fcuyAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T23:27:57.380215Z"},"content_sha256":"11627611275a1ee8b1292b9727d2a6c1acedc477519d853dacccd45194e299ce","schema_version":"1.0","event_id":"sha256:11627611275a1ee8b1292b9727d2a6c1acedc477519d853dacccd45194e299ce"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7PPHECN4AZ7MAT75SNVEJNKZFM/bundle.json","state_url":"https://pith.science/pith/7PPHECN4AZ7MAT75SNVEJNKZFM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7PPHECN4AZ7MAT75SNVEJNKZFM/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":"2026-07-03T23:27:57Z","links":{"resolver":"https://pith.science/pith/7PPHECN4AZ7MAT75SNVEJNKZFM","bundle":"https://pith.science/pith/7PPHECN4AZ7MAT75SNVEJNKZFM/bundle.json","state":"https://pith.science/pith/7PPHECN4AZ7MAT75SNVEJNKZFM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7PPHECN4AZ7MAT75SNVEJNKZFM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:7PPHECN4AZ7MAT75SNVEJNKZFM","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":"671009bd6ae20871c119fedb89d2f72606fbb63478efea4c295076394455f987","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2009-12-14T09:47:05Z","title_canon_sha256":"c395e2e5e2906433001b984e66d0e07b604fe29aa9d4cf7db4c0ebdba28e71d8"},"schema_version":"1.0","source":{"id":"0912.2347","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.2347","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"arxiv_version","alias_value":"0912.2347v1","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.2347","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"pith_short_12","alias_value":"7PPHECN4AZ7M","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"7PPHECN4AZ7MAT75","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"7PPHECN4","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:11627611275a1ee8b1292b9727d2a6c1acedc477519d853dacccd45194e299ce","target":"graph","created_at":"2026-05-18T02:33:56Z","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 this paper we revisit Berkovits' pure spinor formalism in lower dimensions. We are particularly interested in relating a six-dimensional pure spinor action previously constructed in the literature to other superstring formalisms. In order to gain some insight into six-dimensional pure spinors, we first derive their action by gauge-fixing the classical six-dimensional Green-Schwarz action. We then consider a hybrid pure spinor construction in which the spacetime symmetries of six of the ten dimensions are described in pure spinor variables, while the remaining four dimensions are parameteriz","authors_text":"Ingo Kirsch, Sebastian Gerigk","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2009-12-14T09:47:05Z","title":"On the Relation between Hybrid and Pure Spinor String Theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.2347","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":"sha256:533ee6d4c37441b79d6aa505cf0227dbd48a002a347902f4843aaf746094bed0","target":"record","created_at":"2026-05-18T02:33:56Z","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":"671009bd6ae20871c119fedb89d2f72606fbb63478efea4c295076394455f987","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2009-12-14T09:47:05Z","title_canon_sha256":"c395e2e5e2906433001b984e66d0e07b604fe29aa9d4cf7db4c0ebdba28e71d8"},"schema_version":"1.0","source":{"id":"0912.2347","kind":"arxiv","version":1}},"canonical_sha256":"fbde7209bc067ec04ffd936a44b5592b2d0f5ed67598758bde06737fd85115a3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fbde7209bc067ec04ffd936a44b5592b2d0f5ed67598758bde06737fd85115a3","first_computed_at":"2026-05-18T02:33:56.769641Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:33:56.769641Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LqJdVDl9lYaBupZLHzfK0o1dXpKyUcuZXHW5XhC7o7Q0gI3zrfJcZC7S27wmaOm0JUkyBjgeheE6dwa87F+cDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:33:56.770027Z","signed_message":"canonical_sha256_bytes"},"source_id":"0912.2347","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:533ee6d4c37441b79d6aa505cf0227dbd48a002a347902f4843aaf746094bed0","sha256:11627611275a1ee8b1292b9727d2a6c1acedc477519d853dacccd45194e299ce"],"state_sha256":"30f3f883d43fa5638ee50f12a3da89ea05c3701421fd33b791e8606560de0100"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8MlDvDATWvUBKGES90wPqulf5I9+TFWMNymRjDXbNZX2uJFsZ7b0RfUz8Cqp2JPD+aSeH6zqQOybxmMVpvbqDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-03T23:27:57.382525Z","bundle_sha256":"1927f2272f9b762d431546f8df1929b4de0a5af2f6badeb678cd686b7894e06c"}}