{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:MZWPA26E7GTJVMH275KBJV2OXV","short_pith_number":"pith:MZWPA26E","canonical_record":{"source":{"id":"1702.02632","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2017-02-01T19:56:53Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"34848c71162496932e3368b93c59c478aaaf5dd06e69e268f969ca41940b5ef9","abstract_canon_sha256":"d2639884f04ad62f3c0918f6c7926c57394d6a4b08cfa03e3a92ebe32c0c2035"},"schema_version":"1.0"},"canonical_sha256":"666cf06bc4f9a69ab0faff5414d74ebd5d4da17997238284ab711ed631af2047","source":{"kind":"arxiv","id":"1702.02632","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.02632","created_at":"2026-05-18T00:51:03Z"},{"alias_kind":"arxiv_version","alias_value":"1702.02632v1","created_at":"2026-05-18T00:51:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.02632","created_at":"2026-05-18T00:51:03Z"},{"alias_kind":"pith_short_12","alias_value":"MZWPA26E7GTJ","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"MZWPA26E7GTJVMH2","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"MZWPA26E","created_at":"2026-05-18T12:31:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:MZWPA26E7GTJVMH275KBJV2OXV","target":"record","payload":{"canonical_record":{"source":{"id":"1702.02632","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2017-02-01T19:56:53Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"34848c71162496932e3368b93c59c478aaaf5dd06e69e268f969ca41940b5ef9","abstract_canon_sha256":"d2639884f04ad62f3c0918f6c7926c57394d6a4b08cfa03e3a92ebe32c0c2035"},"schema_version":"1.0"},"canonical_sha256":"666cf06bc4f9a69ab0faff5414d74ebd5d4da17997238284ab711ed631af2047","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:51:03.837397Z","signature_b64":"s+/39S4BiT4es2ZRanigS2/NqTlMkYkLhvOX0YZOoNrZzxuoFewCQxAzduVXxwMvfSOupgeyY6PjjW/wS0SpAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"666cf06bc4f9a69ab0faff5414d74ebd5d4da17997238284ab711ed631af2047","last_reissued_at":"2026-05-18T00:51:03.836986Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:51:03.836986Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1702.02632","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":"2026-05-18T00:51:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IS5wVSJQxht8cQaHeKBpyxShva/QHwrHgAJQnJsOp4zD88/7l9IcBtq0pNgIIC12eLpPDYBMUt4D2d6CjsfyDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T20:33:58.152073Z"},"content_sha256":"efd88c19f409bfba57c358033a184f9078841ce122cefd4dba7b0cb1e232e410","schema_version":"1.0","event_id":"sha256:efd88c19f409bfba57c358033a184f9078841ce122cefd4dba7b0cb1e232e410"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:MZWPA26E7GTJVMH275KBJV2OXV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ultrashort dark solitons interactions and nonlinear tunneling in the modified nonlinear Schr\\\"odinger equation with variable coefficients","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"nlin.PS","authors_text":"K. Nithyanandan, K. Porsezian, N.M. Musammil, P.A. Subha, P. Tchofo Dinda","submitted_at":"2017-02-01T19:56:53Z","abstract_excerpt":"We present the study of the dark soliton dynamics in an inhomogenous fiber by means of a variable coefficient modified nonlinear Schr\\\"{o}dinger equation (Vc-MNLSE) with distributed dispersion, self-phase modulation, self-steepening and linear gain/loss. The ultrashort dark soliton pulse evolution and interaction is studied by using the Hirota bilinear (HB) method. In particular, we give much insight into the effect of self-steepening (SS) on the dark soliton dynamics. The study reveals a shock wave formation, as a major effect of SS. Numerically, we study the dark soliton propagation in the c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.02632","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":"2026-05-18T00:51:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YQF8ZcZYx5Et3uMFtbax07TF2CeulX5O6KqSe5DzsL54RExZ43VPfopnd3L7LGVDIS09GlhZZ9NmnQPD+vSpBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T20:33:58.152435Z"},"content_sha256":"e120f43679b8728a891a6622180025e0cf9b426dbf6713ae936dbab5fc767c94","schema_version":"1.0","event_id":"sha256:e120f43679b8728a891a6622180025e0cf9b426dbf6713ae936dbab5fc767c94"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MZWPA26E7GTJVMH275KBJV2OXV/bundle.json","state_url":"https://pith.science/pith/MZWPA26E7GTJVMH275KBJV2OXV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MZWPA26E7GTJVMH275KBJV2OXV/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":"2026-06-24T20:33:58Z","links":{"resolver":"https://pith.science/pith/MZWPA26E7GTJVMH275KBJV2OXV","bundle":"https://pith.science/pith/MZWPA26E7GTJVMH275KBJV2OXV/bundle.json","state":"https://pith.science/pith/MZWPA26E7GTJVMH275KBJV2OXV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MZWPA26E7GTJVMH275KBJV2OXV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:MZWPA26E7GTJVMH275KBJV2OXV","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":"d2639884f04ad62f3c0918f6c7926c57394d6a4b08cfa03e3a92ebe32c0c2035","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2017-02-01T19:56:53Z","title_canon_sha256":"34848c71162496932e3368b93c59c478aaaf5dd06e69e268f969ca41940b5ef9"},"schema_version":"1.0","source":{"id":"1702.02632","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.02632","created_at":"2026-05-18T00:51:03Z"},{"alias_kind":"arxiv_version","alias_value":"1702.02632v1","created_at":"2026-05-18T00:51:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.02632","created_at":"2026-05-18T00:51:03Z"},{"alias_kind":"pith_short_12","alias_value":"MZWPA26E7GTJ","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"MZWPA26E7GTJVMH2","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"MZWPA26E","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:e120f43679b8728a891a6622180025e0cf9b426dbf6713ae936dbab5fc767c94","target":"graph","created_at":"2026-05-18T00:51:03Z","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 present the study of the dark soliton dynamics in an inhomogenous fiber by means of a variable coefficient modified nonlinear Schr\\\"{o}dinger equation (Vc-MNLSE) with distributed dispersion, self-phase modulation, self-steepening and linear gain/loss. The ultrashort dark soliton pulse evolution and interaction is studied by using the Hirota bilinear (HB) method. In particular, we give much insight into the effect of self-steepening (SS) on the dark soliton dynamics. The study reveals a shock wave formation, as a major effect of SS. Numerically, we study the dark soliton propagation in the c","authors_text":"K. Nithyanandan, K. Porsezian, N.M. Musammil, P.A. Subha, P. Tchofo Dinda","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2017-02-01T19:56:53Z","title":"Ultrashort dark solitons interactions and nonlinear tunneling in the modified nonlinear Schr\\\"odinger equation with variable coefficients"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.02632","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:efd88c19f409bfba57c358033a184f9078841ce122cefd4dba7b0cb1e232e410","target":"record","created_at":"2026-05-18T00:51:03Z","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":"d2639884f04ad62f3c0918f6c7926c57394d6a4b08cfa03e3a92ebe32c0c2035","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2017-02-01T19:56:53Z","title_canon_sha256":"34848c71162496932e3368b93c59c478aaaf5dd06e69e268f969ca41940b5ef9"},"schema_version":"1.0","source":{"id":"1702.02632","kind":"arxiv","version":1}},"canonical_sha256":"666cf06bc4f9a69ab0faff5414d74ebd5d4da17997238284ab711ed631af2047","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"666cf06bc4f9a69ab0faff5414d74ebd5d4da17997238284ab711ed631af2047","first_computed_at":"2026-05-18T00:51:03.836986Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:51:03.836986Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"s+/39S4BiT4es2ZRanigS2/NqTlMkYkLhvOX0YZOoNrZzxuoFewCQxAzduVXxwMvfSOupgeyY6PjjW/wS0SpAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:51:03.837397Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.02632","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:efd88c19f409bfba57c358033a184f9078841ce122cefd4dba7b0cb1e232e410","sha256:e120f43679b8728a891a6622180025e0cf9b426dbf6713ae936dbab5fc767c94"],"state_sha256":"5981ec4ed745ae845f5e39e62d02b643f413d992614dcd948a1ae9a9d528dc58"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+2bJ1lgd/ABNR5FRdJ+dtR5WKl9xGbkOkuX0MtIbfilDaB2nx3q3x6pBxCs3hGhOX2d5qUsVkev+cn6Hu2SMDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T20:33:58.155167Z","bundle_sha256":"ea359d7f4a72d8bfa1aafed5c35cfa7d39ca5aabdb0292a9a6f23bffa866e77c"}}