{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1997:4IFONLXALN4CV4GL74Q6CK2ZFL","short_pith_number":"pith:4IFONLXA","canonical_record":{"source":{"id":"gr-qc/9701005","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"1997-01-05T16:04:19Z","cross_cats_sorted":[],"title_canon_sha256":"173cdf3953e98de03f6661ebaa7ed3768bee1ab796dedb0796cb6c2b3c164ce5","abstract_canon_sha256":"691eeb856477c7d59da4479da0c1f24434a5ae5aefc67df7f35573d5b02d1035"},"schema_version":"1.0"},"canonical_sha256":"e20ae6aee05b782af0cbff21e12b592aea0420a4404531fe700265ebc63dbacd","source":{"kind":"arxiv","id":"gr-qc/9701005","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/9701005","created_at":"2026-05-18T02:37:29Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/9701005v1","created_at":"2026-05-18T02:37:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/9701005","created_at":"2026-05-18T02:37:29Z"},{"alias_kind":"pith_short_12","alias_value":"4IFONLXALN4C","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"4IFONLXALN4CV4GL","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"4IFONLXA","created_at":"2026-05-18T12:25:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1997:4IFONLXALN4CV4GL74Q6CK2ZFL","target":"record","payload":{"canonical_record":{"source":{"id":"gr-qc/9701005","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"1997-01-05T16:04:19Z","cross_cats_sorted":[],"title_canon_sha256":"173cdf3953e98de03f6661ebaa7ed3768bee1ab796dedb0796cb6c2b3c164ce5","abstract_canon_sha256":"691eeb856477c7d59da4479da0c1f24434a5ae5aefc67df7f35573d5b02d1035"},"schema_version":"1.0"},"canonical_sha256":"e20ae6aee05b782af0cbff21e12b592aea0420a4404531fe700265ebc63dbacd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:37:29.507046Z","signature_b64":"WKnXYsjkdktE6c8e/XMoALdPR0UQecGGxkmlGjwZc1oGI9OmO6g8Fk9ZsrVC1izZvaiem9WDggAu+qg1wFEtAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e20ae6aee05b782af0cbff21e12b592aea0420a4404531fe700265ebc63dbacd","last_reissued_at":"2026-05-18T02:37:29.506494Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:37:29.506494Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"gr-qc/9701005","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":"2026-05-18T02:37:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PRm3jtpOzMuxkVy0vvESABBLNGES1FW2XgUX2HlJWZXAsdDuuhvo7lmFI/zKZwpeYJxqyT0SCpq2UNppEWRBCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T15:14:09.716821Z"},"content_sha256":"8ca887797c66bfc5f027a82d53d3c46f14842ab9d3d0262958021ae2e80f28d1","schema_version":"1.0","event_id":"sha256:8ca887797c66bfc5f027a82d53d3c46f14842ab9d3d0262958021ae2e80f28d1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1997:4IFONLXALN4CV4GL74Q6CK2ZFL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dynamical Topology Change, Compactification and Waves in String Cosmology","license":"","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"C. Kounnas, E. Kiritsis","submitted_at":"1997-01-05T16:04:19Z","abstract_excerpt":"Exact string solutions are presented, where moduli fields are varying with time. They provide examples where a dynamical change of the topology of space is occurring. Some other solutions give cosmological examples where some dimensions are compactified dynamically or simulate pre-big bang type scenarios. Some lessons are drawn concerning the region of validity of effective theories and how they can be glued together, using stringy information in the region where the geometry and topology are not well defined from the low energy point of view. Other time dependent solutions are presented where"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/9701005","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":"2026-05-18T02:37:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6y/rOWWW+I+fu3NFrlVhuYm8ZPRM5/LSJ5BC0hJYWQ+Kcv7ILBQx9+2w7g2olMr44ngfPDFXUMRJF4wmfnlUDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T15:14:09.717198Z"},"content_sha256":"6e7774316f203207803862068cf004763c702e50aa77b95986ea6acbb685779c","schema_version":"1.0","event_id":"sha256:6e7774316f203207803862068cf004763c702e50aa77b95986ea6acbb685779c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4IFONLXALN4CV4GL74Q6CK2ZFL/bundle.json","state_url":"https://pith.science/pith/4IFONLXALN4CV4GL74Q6CK2ZFL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4IFONLXALN4CV4GL74Q6CK2ZFL/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":"2026-06-01T15:14:09Z","links":{"resolver":"https://pith.science/pith/4IFONLXALN4CV4GL74Q6CK2ZFL","bundle":"https://pith.science/pith/4IFONLXALN4CV4GL74Q6CK2ZFL/bundle.json","state":"https://pith.science/pith/4IFONLXALN4CV4GL74Q6CK2ZFL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4IFONLXALN4CV4GL74Q6CK2ZFL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1997:4IFONLXALN4CV4GL74Q6CK2ZFL","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":"691eeb856477c7d59da4479da0c1f24434a5ae5aefc67df7f35573d5b02d1035","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"1997-01-05T16:04:19Z","title_canon_sha256":"173cdf3953e98de03f6661ebaa7ed3768bee1ab796dedb0796cb6c2b3c164ce5"},"schema_version":"1.0","source":{"id":"gr-qc/9701005","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/9701005","created_at":"2026-05-18T02:37:29Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/9701005v1","created_at":"2026-05-18T02:37:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/9701005","created_at":"2026-05-18T02:37:29Z"},{"alias_kind":"pith_short_12","alias_value":"4IFONLXALN4C","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"4IFONLXALN4CV4GL","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"4IFONLXA","created_at":"2026-05-18T12:25:48Z"}],"graph_snapshots":[{"event_id":"sha256:6e7774316f203207803862068cf004763c702e50aa77b95986ea6acbb685779c","target":"graph","created_at":"2026-05-18T02:37:29Z","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":"Exact string solutions are presented, where moduli fields are varying with time. They provide examples where a dynamical change of the topology of space is occurring. Some other solutions give cosmological examples where some dimensions are compactified dynamically or simulate pre-big bang type scenarios. Some lessons are drawn concerning the region of validity of effective theories and how they can be glued together, using stringy information in the region where the geometry and topology are not well defined from the low energy point of view. Other time dependent solutions are presented where","authors_text":"C. Kounnas, E. Kiritsis","cross_cats":[],"headline":"","license":"","primary_cat":"gr-qc","submitted_at":"1997-01-05T16:04:19Z","title":"Dynamical Topology Change, Compactification and Waves in String Cosmology"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/9701005","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":"sha256:8ca887797c66bfc5f027a82d53d3c46f14842ab9d3d0262958021ae2e80f28d1","target":"record","created_at":"2026-05-18T02:37:29Z","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":"691eeb856477c7d59da4479da0c1f24434a5ae5aefc67df7f35573d5b02d1035","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"1997-01-05T16:04:19Z","title_canon_sha256":"173cdf3953e98de03f6661ebaa7ed3768bee1ab796dedb0796cb6c2b3c164ce5"},"schema_version":"1.0","source":{"id":"gr-qc/9701005","kind":"arxiv","version":1}},"canonical_sha256":"e20ae6aee05b782af0cbff21e12b592aea0420a4404531fe700265ebc63dbacd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e20ae6aee05b782af0cbff21e12b592aea0420a4404531fe700265ebc63dbacd","first_computed_at":"2026-05-18T02:37:29.506494Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:37:29.506494Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WKnXYsjkdktE6c8e/XMoALdPR0UQecGGxkmlGjwZc1oGI9OmO6g8Fk9ZsrVC1izZvaiem9WDggAu+qg1wFEtAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:37:29.507046Z","signed_message":"canonical_sha256_bytes"},"source_id":"gr-qc/9701005","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ca887797c66bfc5f027a82d53d3c46f14842ab9d3d0262958021ae2e80f28d1","sha256:6e7774316f203207803862068cf004763c702e50aa77b95986ea6acbb685779c"],"state_sha256":"9d8c4b0ede2bc3d2efc40d6fd4aa36f6e7ba89ab2085d3993bf93dd268dadde7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yrEfmY+v/TwbeQhRIkCCn5ERMpLoCJ7auKd7dlkPefo7dRY+pV2zKy41/oyWkqXtQojx8/TE6iMc6dx5DNEICQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T15:14:09.719207Z","bundle_sha256":"900ba54da92abe790b1e35a204c5c0579e348d71dc7d02d9c1d4ad30d1b93670"}}