{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:5C7GZ4TR2ZVNG5IO6743AV4HFA","short_pith_number":"pith:5C7GZ4TR","canonical_record":{"source":{"id":"hep-th/9908126","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"1999-08-19T09:38:50Z","cross_cats_sorted":[],"title_canon_sha256":"134096e3899488fd239d8ac6064f7c9ba1710eeb50d8ea2ac06ee50e7049c362","abstract_canon_sha256":"7df4f72299c81d66791f33e655dea6b8850a2f7f64c7846895ab45b6b2a6ae6e"},"schema_version":"1.0"},"canonical_sha256":"e8be6cf271d66ad3750ef7f9b057872830d290a4a3b6734affb8ac512dbb3cda","source":{"kind":"arxiv","id":"hep-th/9908126","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-th/9908126","created_at":"2026-05-18T04:24:15Z"},{"alias_kind":"arxiv_version","alias_value":"hep-th/9908126v2","created_at":"2026-05-18T04:24:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/9908126","created_at":"2026-05-18T04:24:15Z"},{"alias_kind":"pith_short_12","alias_value":"5C7GZ4TR2ZVN","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"5C7GZ4TR2ZVNG5IO","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"5C7GZ4TR","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:5C7GZ4TR2ZVNG5IO6743AV4HFA","target":"record","payload":{"canonical_record":{"source":{"id":"hep-th/9908126","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"1999-08-19T09:38:50Z","cross_cats_sorted":[],"title_canon_sha256":"134096e3899488fd239d8ac6064f7c9ba1710eeb50d8ea2ac06ee50e7049c362","abstract_canon_sha256":"7df4f72299c81d66791f33e655dea6b8850a2f7f64c7846895ab45b6b2a6ae6e"},"schema_version":"1.0"},"canonical_sha256":"e8be6cf271d66ad3750ef7f9b057872830d290a4a3b6734affb8ac512dbb3cda","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:24:15.377022Z","signature_b64":"N57OvLyG+F7qKcvFi9r+U50lJHh3vP0R8YHNDZPy2guSehyFbuyn8m1CPB/e+HI57ymHTmnDLm/OZmaCaqltAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e8be6cf271d66ad3750ef7f9b057872830d290a4a3b6734affb8ac512dbb3cda","last_reissued_at":"2026-05-18T04:24:15.376382Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:24:15.376382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-th/9908126","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":"2026-05-18T04:24:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3fvrCgO2lUWHDwaSzOS4dxVfVXEH69sD+oGN9Zl8CWwCCK4pT7ZpqbOVsiff4aEEexfcYU+/0uuMVkxNsL/UAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T07:14:01.274619Z"},"content_sha256":"b178f4c9c66dd3decccaf88aa8a3c8af469d1f5045876bce5f45cfe5dad9a4ef","schema_version":"1.0","event_id":"sha256:b178f4c9c66dd3decccaf88aa8a3c8af469d1f5045876bce5f45cfe5dad9a4ef"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:5C7GZ4TR2ZVNG5IO6743AV4HFA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Non-BPS Dirichlet branes","license":"","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Matthias R Gaberdiel, Oren Bergman","submitted_at":"1999-08-19T09:38:50Z","abstract_excerpt":"A brief introduction to the boundary state approach to Dirichlet branes is given. The example of the non-BPS D-string of Type IIA on K3 is analysed in some detail, and its dual heterotic state is identified."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/9908126","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":"2026-05-18T04:24:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cVaY2erTyrDOOTiciT2opeidtSNTzY4Zwgmsz1ESDAWg2hFNMRd84D2WJ2h6gu51Tr0MmP/O+Rfjw0jbMadpAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T07:14:01.275303Z"},"content_sha256":"1010077f8b9c4dbf5bea01666d637259bb305d07bb90f74a05b21e3592a9de44","schema_version":"1.0","event_id":"sha256:1010077f8b9c4dbf5bea01666d637259bb305d07bb90f74a05b21e3592a9de44"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5C7GZ4TR2ZVNG5IO6743AV4HFA/bundle.json","state_url":"https://pith.science/pith/5C7GZ4TR2ZVNG5IO6743AV4HFA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5C7GZ4TR2ZVNG5IO6743AV4HFA/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":"2026-06-10T07:14:01Z","links":{"resolver":"https://pith.science/pith/5C7GZ4TR2ZVNG5IO6743AV4HFA","bundle":"https://pith.science/pith/5C7GZ4TR2ZVNG5IO6743AV4HFA/bundle.json","state":"https://pith.science/pith/5C7GZ4TR2ZVNG5IO6743AV4HFA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5C7GZ4TR2ZVNG5IO6743AV4HFA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:5C7GZ4TR2ZVNG5IO6743AV4HFA","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":"7df4f72299c81d66791f33e655dea6b8850a2f7f64c7846895ab45b6b2a6ae6e","cross_cats_sorted":[],"license":"","primary_cat":"hep-th","submitted_at":"1999-08-19T09:38:50Z","title_canon_sha256":"134096e3899488fd239d8ac6064f7c9ba1710eeb50d8ea2ac06ee50e7049c362"},"schema_version":"1.0","source":{"id":"hep-th/9908126","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-th/9908126","created_at":"2026-05-18T04:24:15Z"},{"alias_kind":"arxiv_version","alias_value":"hep-th/9908126v2","created_at":"2026-05-18T04:24:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/9908126","created_at":"2026-05-18T04:24:15Z"},{"alias_kind":"pith_short_12","alias_value":"5C7GZ4TR2ZVN","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"5C7GZ4TR2ZVNG5IO","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"5C7GZ4TR","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:1010077f8b9c4dbf5bea01666d637259bb305d07bb90f74a05b21e3592a9de44","target":"graph","created_at":"2026-05-18T04:24:15Z","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":"A brief introduction to the boundary state approach to Dirichlet branes is given. The example of the non-BPS D-string of Type IIA on K3 is analysed in some detail, and its dual heterotic state is identified.","authors_text":"Matthias R Gaberdiel, Oren Bergman","cross_cats":[],"headline":"","license":"","primary_cat":"hep-th","submitted_at":"1999-08-19T09:38:50Z","title":"Non-BPS Dirichlet branes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/9908126","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:b178f4c9c66dd3decccaf88aa8a3c8af469d1f5045876bce5f45cfe5dad9a4ef","target":"record","created_at":"2026-05-18T04:24:15Z","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":"7df4f72299c81d66791f33e655dea6b8850a2f7f64c7846895ab45b6b2a6ae6e","cross_cats_sorted":[],"license":"","primary_cat":"hep-th","submitted_at":"1999-08-19T09:38:50Z","title_canon_sha256":"134096e3899488fd239d8ac6064f7c9ba1710eeb50d8ea2ac06ee50e7049c362"},"schema_version":"1.0","source":{"id":"hep-th/9908126","kind":"arxiv","version":2}},"canonical_sha256":"e8be6cf271d66ad3750ef7f9b057872830d290a4a3b6734affb8ac512dbb3cda","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e8be6cf271d66ad3750ef7f9b057872830d290a4a3b6734affb8ac512dbb3cda","first_computed_at":"2026-05-18T04:24:15.376382Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:24:15.376382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"N57OvLyG+F7qKcvFi9r+U50lJHh3vP0R8YHNDZPy2guSehyFbuyn8m1CPB/e+HI57ymHTmnDLm/OZmaCaqltAg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:24:15.377022Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-th/9908126","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b178f4c9c66dd3decccaf88aa8a3c8af469d1f5045876bce5f45cfe5dad9a4ef","sha256:1010077f8b9c4dbf5bea01666d637259bb305d07bb90f74a05b21e3592a9de44"],"state_sha256":"677a494e075d31eaaeec0839d1c9e82f4b71885df868a72bd8052a78caad3343"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I+nN/ApnLVxikArud07+YD/wdhnr2pHQGAvIFcPTClS6DEurV5h+iUzrK0mJVadJE9gF6pvdadN5B0hyMPuBDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T07:14:01.278980Z","bundle_sha256":"4896b74924df07c7dbe8492ed4601b3d6edc5fdbf6e3eabb136844947ad3ada4"}}