{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:4XJQO5HA2VRELQ2GAAWNJU6I5X","short_pith_number":"pith:4XJQO5HA","canonical_record":{"source":{"id":"1702.01343","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-02-04T20:35:19Z","cross_cats_sorted":[],"title_canon_sha256":"e981ad38281bd6d74bed2e1a875951520478c1cee0ab7d81e9cfb89cebffbeeb","abstract_canon_sha256":"fe440a3583857b4ff63f7abf639b32c1120a9cac1e3eb9980211b700eff87048"},"schema_version":"1.0"},"canonical_sha256":"e5d30774e0d56245c346002cd4d3c8edfe9118aca151f3d8407dfaf73698f2cf","source":{"kind":"arxiv","id":"1702.01343","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.01343","created_at":"2026-05-18T00:51:23Z"},{"alias_kind":"arxiv_version","alias_value":"1702.01343v1","created_at":"2026-05-18T00:51:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.01343","created_at":"2026-05-18T00:51:23Z"},{"alias_kind":"pith_short_12","alias_value":"4XJQO5HA2VRE","created_at":"2026-05-18T12:31:00Z"},{"alias_kind":"pith_short_16","alias_value":"4XJQO5HA2VRELQ2G","created_at":"2026-05-18T12:31:00Z"},{"alias_kind":"pith_short_8","alias_value":"4XJQO5HA","created_at":"2026-05-18T12:31:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:4XJQO5HA2VRELQ2GAAWNJU6I5X","target":"record","payload":{"canonical_record":{"source":{"id":"1702.01343","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-02-04T20:35:19Z","cross_cats_sorted":[],"title_canon_sha256":"e981ad38281bd6d74bed2e1a875951520478c1cee0ab7d81e9cfb89cebffbeeb","abstract_canon_sha256":"fe440a3583857b4ff63f7abf639b32c1120a9cac1e3eb9980211b700eff87048"},"schema_version":"1.0"},"canonical_sha256":"e5d30774e0d56245c346002cd4d3c8edfe9118aca151f3d8407dfaf73698f2cf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:51:23.716634Z","signature_b64":"HQROr+xEpH8r8jiAWgt6B4DRw9pLPa15NzcKrVA2LuVGV7Of0eV8moGtbH2ASGlaCmMzRFwyCNWJze4oD7nRBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e5d30774e0d56245c346002cd4d3c8edfe9118aca151f3d8407dfaf73698f2cf","last_reissued_at":"2026-05-18T00:51:23.716025Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:51:23.716025Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1702.01343","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":"2026-05-18T00:51:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U4ctPmlPExOejeSy7YjwGluzKl1MtryQZkZgf5iEsu3WCdtWsthZxQQYiBQMfVX7Epk0PjlIOIaXssI5facaDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T11:48:11.143251Z"},"content_sha256":"a6d18a925a738505bf3bde19c1207da07e16cea6496f1069c0ac4b6ec1e69b7b","schema_version":"1.0","event_id":"sha256:a6d18a925a738505bf3bde19c1207da07e16cea6496f1069c0ac4b6ec1e69b7b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:4XJQO5HA2VRELQ2GAAWNJU6I5X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum vacuum effects for a massive Bosonic string in background B-field","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"A.Shirzad, Y.Koohsarian","submitted_at":"2017-02-04T20:35:19Z","abstract_excerpt":"We study the Casimir effect for a bosonic string extended between D-branes, and living in a flat space with an antisymmetric background B-field. We find the Casimir energy as a function of theB-field, and the mass-parameter of the string, and accordingly we obtain a B-dependence correction term to the ground-state mass of the string. We show that for sufficiently large B-field, the ground state of the string contains real (i.e. non-Tachyonic) particles."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.01343","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":"2026-05-18T00:51:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dAW7tiqS64lG/ljYV+vWnRtEYinc/W8giupj4owbE1Hq5BB2B6FLoRTSwLQWaXie6ukboH9lGpqkbxuzOp8wCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T11:48:11.143969Z"},"content_sha256":"a5d08d539ac45d3eb83a45b98cf78dde70e51b1f7e2444f80cffd7a793aaec9c","schema_version":"1.0","event_id":"sha256:a5d08d539ac45d3eb83a45b98cf78dde70e51b1f7e2444f80cffd7a793aaec9c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4XJQO5HA2VRELQ2GAAWNJU6I5X/bundle.json","state_url":"https://pith.science/pith/4XJQO5HA2VRELQ2GAAWNJU6I5X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4XJQO5HA2VRELQ2GAAWNJU6I5X/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":"2026-06-07T11:48:11Z","links":{"resolver":"https://pith.science/pith/4XJQO5HA2VRELQ2GAAWNJU6I5X","bundle":"https://pith.science/pith/4XJQO5HA2VRELQ2GAAWNJU6I5X/bundle.json","state":"https://pith.science/pith/4XJQO5HA2VRELQ2GAAWNJU6I5X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4XJQO5HA2VRELQ2GAAWNJU6I5X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:4XJQO5HA2VRELQ2GAAWNJU6I5X","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":"fe440a3583857b4ff63f7abf639b32c1120a9cac1e3eb9980211b700eff87048","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-02-04T20:35:19Z","title_canon_sha256":"e981ad38281bd6d74bed2e1a875951520478c1cee0ab7d81e9cfb89cebffbeeb"},"schema_version":"1.0","source":{"id":"1702.01343","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.01343","created_at":"2026-05-18T00:51:23Z"},{"alias_kind":"arxiv_version","alias_value":"1702.01343v1","created_at":"2026-05-18T00:51:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.01343","created_at":"2026-05-18T00:51:23Z"},{"alias_kind":"pith_short_12","alias_value":"4XJQO5HA2VRE","created_at":"2026-05-18T12:31:00Z"},{"alias_kind":"pith_short_16","alias_value":"4XJQO5HA2VRELQ2G","created_at":"2026-05-18T12:31:00Z"},{"alias_kind":"pith_short_8","alias_value":"4XJQO5HA","created_at":"2026-05-18T12:31:00Z"}],"graph_snapshots":[{"event_id":"sha256:a5d08d539ac45d3eb83a45b98cf78dde70e51b1f7e2444f80cffd7a793aaec9c","target":"graph","created_at":"2026-05-18T00:51:23Z","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 study the Casimir effect for a bosonic string extended between D-branes, and living in a flat space with an antisymmetric background B-field. We find the Casimir energy as a function of theB-field, and the mass-parameter of the string, and accordingly we obtain a B-dependence correction term to the ground-state mass of the string. We show that for sufficiently large B-field, the ground state of the string contains real (i.e. non-Tachyonic) particles.","authors_text":"A.Shirzad, Y.Koohsarian","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-02-04T20:35:19Z","title":"Quantum vacuum effects for a massive Bosonic string in background B-field"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.01343","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:a6d18a925a738505bf3bde19c1207da07e16cea6496f1069c0ac4b6ec1e69b7b","target":"record","created_at":"2026-05-18T00:51:23Z","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":"fe440a3583857b4ff63f7abf639b32c1120a9cac1e3eb9980211b700eff87048","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-02-04T20:35:19Z","title_canon_sha256":"e981ad38281bd6d74bed2e1a875951520478c1cee0ab7d81e9cfb89cebffbeeb"},"schema_version":"1.0","source":{"id":"1702.01343","kind":"arxiv","version":1}},"canonical_sha256":"e5d30774e0d56245c346002cd4d3c8edfe9118aca151f3d8407dfaf73698f2cf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e5d30774e0d56245c346002cd4d3c8edfe9118aca151f3d8407dfaf73698f2cf","first_computed_at":"2026-05-18T00:51:23.716025Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:51:23.716025Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HQROr+xEpH8r8jiAWgt6B4DRw9pLPa15NzcKrVA2LuVGV7Of0eV8moGtbH2ASGlaCmMzRFwyCNWJze4oD7nRBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:51:23.716634Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.01343","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a6d18a925a738505bf3bde19c1207da07e16cea6496f1069c0ac4b6ec1e69b7b","sha256:a5d08d539ac45d3eb83a45b98cf78dde70e51b1f7e2444f80cffd7a793aaec9c"],"state_sha256":"fcbf52602c7e03cad6970b3435f1143242afd321f62efb787a2a513aa7fbdd6f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WNLSZKeAMS/YTC3mMVcZGyTawXGnV6ZYtLlsM6rhma52qAgoX7sVOC48g45FewHnL/sfcpnctBUJ+yG4eq5uBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T11:48:11.147499Z","bundle_sha256":"dbb544899a191f250134f447cfed71d4235b3d6aaf02a06964bcf9eb074c540a"}}