{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:6JZFHCKPH4PEF3WU5ZSHXIX5W5","short_pith_number":"pith:6JZFHCKP","canonical_record":{"source":{"id":"1505.00614","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-05-04T12:55:24Z","cross_cats_sorted":[],"title_canon_sha256":"ffd8a716cb6728c3e6aa101705b3447b180dc6c947396fc1b5b196617eec799c","abstract_canon_sha256":"7152e263819cb0556daf1ba657dcee49f3f31afb8cb17e57e286d709a1cbd160"},"schema_version":"1.0"},"canonical_sha256":"f27253894f3f1e42eed4ee647ba2fdb77fcdafed5172f856ad1df0c8d4f05c6b","source":{"kind":"arxiv","id":"1505.00614","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.00614","created_at":"2026-05-18T02:17:02Z"},{"alias_kind":"arxiv_version","alias_value":"1505.00614v1","created_at":"2026-05-18T02:17:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.00614","created_at":"2026-05-18T02:17:02Z"},{"alias_kind":"pith_short_12","alias_value":"6JZFHCKPH4PE","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"6JZFHCKPH4PEF3WU","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"6JZFHCKP","created_at":"2026-05-18T12:29:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:6JZFHCKPH4PEF3WU5ZSHXIX5W5","target":"record","payload":{"canonical_record":{"source":{"id":"1505.00614","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-05-04T12:55:24Z","cross_cats_sorted":[],"title_canon_sha256":"ffd8a716cb6728c3e6aa101705b3447b180dc6c947396fc1b5b196617eec799c","abstract_canon_sha256":"7152e263819cb0556daf1ba657dcee49f3f31afb8cb17e57e286d709a1cbd160"},"schema_version":"1.0"},"canonical_sha256":"f27253894f3f1e42eed4ee647ba2fdb77fcdafed5172f856ad1df0c8d4f05c6b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:17:02.377364Z","signature_b64":"KPLEda+PQ4tNSXMg+9eq1spcclNvEj4ahmJHJNNn4bClrdh2NakiVed/I9+YpKMBpmni4+xjVulp5ZPnhfiiDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f27253894f3f1e42eed4ee647ba2fdb77fcdafed5172f856ad1df0c8d4f05c6b","last_reissued_at":"2026-05-18T02:17:02.376726Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:17:02.376726Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1505.00614","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":"2026-05-18T02:17:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0x7E771Ah7pl5k7R/Fi4B/qc1tA4BST59Z5IpYjMXXUr4HE30zglNF0yELoN4bqlUomR08nwcWh2j934el7ZDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T12:03:36.610139Z"},"content_sha256":"56d4d39f4f8321842676b8eb67afb617298c77693f6ee8644b33fd78cd130eff","schema_version":"1.0","event_id":"sha256:56d4d39f4f8321842676b8eb67afb617298c77693f6ee8644b33fd78cd130eff"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:6JZFHCKPH4PEF3WU5ZSHXIX5W5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ultrashort pulses in an inhomogeneously broadened two-level medium: soliton formation and inelastic collisions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Denis Novitsky","submitted_at":"2015-05-04T12:55:24Z","abstract_excerpt":"Using numerical simulations, we study propagation of ultrashort light pulses in an inhomogeneously broadened two-level medium. There are two main issues in our study. The first one concerns the transient process of self-induced transparency soliton formation, in particular, the compression of the pulse which seems to be more effective in the case of homogeneous broadening. The second question deals with the collisions of counter-propagating solitons. It is shown that the level of inhomogeneous broadening has a substantial effect on the elasticity of such collisions."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.00614","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":"2026-05-18T02:17:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qFAS3t3RQ2kVtxGtSqYoJo0WTEDOVKAnD1f/faNj9IE7KCEpybyfubYaUShV9ewCLuMksU/8RbV6vJIodmh8Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T12:03:36.610492Z"},"content_sha256":"bf4b2d51807a479f00122f566a44de48bb4914f2fe0567cbead19d1b237695cc","schema_version":"1.0","event_id":"sha256:bf4b2d51807a479f00122f566a44de48bb4914f2fe0567cbead19d1b237695cc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6JZFHCKPH4PEF3WU5ZSHXIX5W5/bundle.json","state_url":"https://pith.science/pith/6JZFHCKPH4PEF3WU5ZSHXIX5W5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6JZFHCKPH4PEF3WU5ZSHXIX5W5/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":"2026-06-22T12:03:36Z","links":{"resolver":"https://pith.science/pith/6JZFHCKPH4PEF3WU5ZSHXIX5W5","bundle":"https://pith.science/pith/6JZFHCKPH4PEF3WU5ZSHXIX5W5/bundle.json","state":"https://pith.science/pith/6JZFHCKPH4PEF3WU5ZSHXIX5W5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6JZFHCKPH4PEF3WU5ZSHXIX5W5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:6JZFHCKPH4PEF3WU5ZSHXIX5W5","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":"7152e263819cb0556daf1ba657dcee49f3f31afb8cb17e57e286d709a1cbd160","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-05-04T12:55:24Z","title_canon_sha256":"ffd8a716cb6728c3e6aa101705b3447b180dc6c947396fc1b5b196617eec799c"},"schema_version":"1.0","source":{"id":"1505.00614","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.00614","created_at":"2026-05-18T02:17:02Z"},{"alias_kind":"arxiv_version","alias_value":"1505.00614v1","created_at":"2026-05-18T02:17:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.00614","created_at":"2026-05-18T02:17:02Z"},{"alias_kind":"pith_short_12","alias_value":"6JZFHCKPH4PE","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"6JZFHCKPH4PEF3WU","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"6JZFHCKP","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:bf4b2d51807a479f00122f566a44de48bb4914f2fe0567cbead19d1b237695cc","target":"graph","created_at":"2026-05-18T02:17:02Z","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":"Using numerical simulations, we study propagation of ultrashort light pulses in an inhomogeneously broadened two-level medium. There are two main issues in our study. The first one concerns the transient process of self-induced transparency soliton formation, in particular, the compression of the pulse which seems to be more effective in the case of homogeneous broadening. The second question deals with the collisions of counter-propagating solitons. It is shown that the level of inhomogeneous broadening has a substantial effect on the elasticity of such collisions.","authors_text":"Denis Novitsky","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-05-04T12:55:24Z","title":"Ultrashort pulses in an inhomogeneously broadened two-level medium: soliton formation and inelastic collisions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.00614","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":"sha256:56d4d39f4f8321842676b8eb67afb617298c77693f6ee8644b33fd78cd130eff","target":"record","created_at":"2026-05-18T02:17:02Z","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":"7152e263819cb0556daf1ba657dcee49f3f31afb8cb17e57e286d709a1cbd160","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-05-04T12:55:24Z","title_canon_sha256":"ffd8a716cb6728c3e6aa101705b3447b180dc6c947396fc1b5b196617eec799c"},"schema_version":"1.0","source":{"id":"1505.00614","kind":"arxiv","version":1}},"canonical_sha256":"f27253894f3f1e42eed4ee647ba2fdb77fcdafed5172f856ad1df0c8d4f05c6b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f27253894f3f1e42eed4ee647ba2fdb77fcdafed5172f856ad1df0c8d4f05c6b","first_computed_at":"2026-05-18T02:17:02.376726Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:17:02.376726Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KPLEda+PQ4tNSXMg+9eq1spcclNvEj4ahmJHJNNn4bClrdh2NakiVed/I9+YpKMBpmni4+xjVulp5ZPnhfiiDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:17:02.377364Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.00614","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:56d4d39f4f8321842676b8eb67afb617298c77693f6ee8644b33fd78cd130eff","sha256:bf4b2d51807a479f00122f566a44de48bb4914f2fe0567cbead19d1b237695cc"],"state_sha256":"556b02748889ffd6a1eafca821225c2823ad91b16b0a71ee96cc028a8487c7a1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2j3PB+YSUt8NG2Ff/pRUKaIL2NxMtRT9S5WNctwnFwtKnpBOBxCPQd9sV8mA+F8rbXQiXBylvgPpJah9Bi4RDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T12:03:36.612336Z","bundle_sha256":"22e8be81ec4fb042d3daa076cced8cc36a9dd8ac00b57fda7f3a97b3e14dacf6"}}