{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:XJ4NSYTRSVZW5A6CURRZVNWMET","short_pith_number":"pith:XJ4NSYTR","canonical_record":{"source":{"id":"1906.05053","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2019-06-12T10:47:54Z","cross_cats_sorted":[],"title_canon_sha256":"e41ca2b667dac16c4b53dffc849fcc5ed63f080aa5e5548a051e142e15d8ac55","abstract_canon_sha256":"bc8b6aa47b59375bd948945916f1f4ca9e08ce615a5f1e5329e88809de16461a"},"schema_version":"1.0"},"canonical_sha256":"ba78d9627195736e83c2a4639ab6cc24ddbd4c6220ae2dc4bbd4575328d8721f","source":{"kind":"arxiv","id":"1906.05053","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.05053","created_at":"2026-05-17T23:43:29Z"},{"alias_kind":"arxiv_version","alias_value":"1906.05053v1","created_at":"2026-05-17T23:43:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.05053","created_at":"2026-05-17T23:43:29Z"},{"alias_kind":"pith_short_12","alias_value":"XJ4NSYTRSVZW","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"XJ4NSYTRSVZW5A6C","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"XJ4NSYTR","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:XJ4NSYTRSVZW5A6CURRZVNWMET","target":"record","payload":{"canonical_record":{"source":{"id":"1906.05053","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2019-06-12T10:47:54Z","cross_cats_sorted":[],"title_canon_sha256":"e41ca2b667dac16c4b53dffc849fcc5ed63f080aa5e5548a051e142e15d8ac55","abstract_canon_sha256":"bc8b6aa47b59375bd948945916f1f4ca9e08ce615a5f1e5329e88809de16461a"},"schema_version":"1.0"},"canonical_sha256":"ba78d9627195736e83c2a4639ab6cc24ddbd4c6220ae2dc4bbd4575328d8721f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:43:29.626196Z","signature_b64":"hbrsjZBWxTFNgbWSoZ5phYFcRMDL7iftpXStI+D+tznSJ5CXT86ZhQAIiPcMNc1GfblYM3i750X/Fa2dOa3+AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ba78d9627195736e83c2a4639ab6cc24ddbd4c6220ae2dc4bbd4575328d8721f","last_reissued_at":"2026-05-17T23:43:29.625561Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:43:29.625561Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1906.05053","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":"2026-05-17T23:43:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NhLZybtaTYtXrJTijaamkpnj5WZTthUWZ2eJm80eaKOuX9kCUa3TCQ+HvsDAb9HAKspEBu/Op/NLCHkNDg2eAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T16:17:53.868089Z"},"content_sha256":"b617b233a8da12cb3993971d4a713c11d0e3ad85e2fcbb060147dfa52cccda06","schema_version":"1.0","event_id":"sha256:b617b233a8da12cb3993971d4a713c11d0e3ad85e2fcbb060147dfa52cccda06"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:XJ4NSYTRSVZW5A6CURRZVNWMET","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The KdV equation on the half-line: Time-periodicity and mass transport","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nlin.SI","authors_text":"Jerry L. Bona, Jonatan Lenells","submitted_at":"2019-06-12T10:47:54Z","abstract_excerpt":"The work presented here emanates from questions arising from experimental observations of the propagation of surface water waves. The experiments in question featured a periodically moving wavemaker located at one end of a flume that generated unidirectional waves of relatively small amplitude and long wavelength when compared with the undisturbed depth. It was observed that the wave profile at any point down the channel very quickly became periodic in time with the same period as that of the wavemaker. One of the questions dealt with here is whether or not such a property holds for model equa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.05053","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":"2026-05-17T23:43:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UTKzR5tZxHsmvasHaYD0LOFTfK1I53BGYBuWanbunxkH66IyISaf4qrME8obshRgz/xX2yKO6qlXxLIwZIM8DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T16:17:53.868447Z"},"content_sha256":"4dd987cda938ee990a1eee3e251db8c8bf66ab41d33fe9d6b518793e6713772e","schema_version":"1.0","event_id":"sha256:4dd987cda938ee990a1eee3e251db8c8bf66ab41d33fe9d6b518793e6713772e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XJ4NSYTRSVZW5A6CURRZVNWMET/bundle.json","state_url":"https://pith.science/pith/XJ4NSYTRSVZW5A6CURRZVNWMET/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XJ4NSYTRSVZW5A6CURRZVNWMET/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":"2026-06-24T16:17:53Z","links":{"resolver":"https://pith.science/pith/XJ4NSYTRSVZW5A6CURRZVNWMET","bundle":"https://pith.science/pith/XJ4NSYTRSVZW5A6CURRZVNWMET/bundle.json","state":"https://pith.science/pith/XJ4NSYTRSVZW5A6CURRZVNWMET/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XJ4NSYTRSVZW5A6CURRZVNWMET/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:XJ4NSYTRSVZW5A6CURRZVNWMET","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":"bc8b6aa47b59375bd948945916f1f4ca9e08ce615a5f1e5329e88809de16461a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2019-06-12T10:47:54Z","title_canon_sha256":"e41ca2b667dac16c4b53dffc849fcc5ed63f080aa5e5548a051e142e15d8ac55"},"schema_version":"1.0","source":{"id":"1906.05053","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.05053","created_at":"2026-05-17T23:43:29Z"},{"alias_kind":"arxiv_version","alias_value":"1906.05053v1","created_at":"2026-05-17T23:43:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.05053","created_at":"2026-05-17T23:43:29Z"},{"alias_kind":"pith_short_12","alias_value":"XJ4NSYTRSVZW","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"XJ4NSYTRSVZW5A6C","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"XJ4NSYTR","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:4dd987cda938ee990a1eee3e251db8c8bf66ab41d33fe9d6b518793e6713772e","target":"graph","created_at":"2026-05-17T23:43:29Z","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":"The work presented here emanates from questions arising from experimental observations of the propagation of surface water waves. The experiments in question featured a periodically moving wavemaker located at one end of a flume that generated unidirectional waves of relatively small amplitude and long wavelength when compared with the undisturbed depth. It was observed that the wave profile at any point down the channel very quickly became periodic in time with the same period as that of the wavemaker. One of the questions dealt with here is whether or not such a property holds for model equa","authors_text":"Jerry L. Bona, Jonatan Lenells","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2019-06-12T10:47:54Z","title":"The KdV equation on the half-line: Time-periodicity and mass transport"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.05053","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:b617b233a8da12cb3993971d4a713c11d0e3ad85e2fcbb060147dfa52cccda06","target":"record","created_at":"2026-05-17T23:43:29Z","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":"bc8b6aa47b59375bd948945916f1f4ca9e08ce615a5f1e5329e88809de16461a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2019-06-12T10:47:54Z","title_canon_sha256":"e41ca2b667dac16c4b53dffc849fcc5ed63f080aa5e5548a051e142e15d8ac55"},"schema_version":"1.0","source":{"id":"1906.05053","kind":"arxiv","version":1}},"canonical_sha256":"ba78d9627195736e83c2a4639ab6cc24ddbd4c6220ae2dc4bbd4575328d8721f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ba78d9627195736e83c2a4639ab6cc24ddbd4c6220ae2dc4bbd4575328d8721f","first_computed_at":"2026-05-17T23:43:29.625561Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:43:29.625561Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hbrsjZBWxTFNgbWSoZ5phYFcRMDL7iftpXStI+D+tznSJ5CXT86ZhQAIiPcMNc1GfblYM3i750X/Fa2dOa3+AA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:43:29.626196Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.05053","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b617b233a8da12cb3993971d4a713c11d0e3ad85e2fcbb060147dfa52cccda06","sha256:4dd987cda938ee990a1eee3e251db8c8bf66ab41d33fe9d6b518793e6713772e"],"state_sha256":"d04ed6417c26d8ad1914864ecc273672b2be32d75fde02e21c89c6da0ee6cc76"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M5d0deYP5yBj/gbEAqx0sF1E1Hse+oD1N2wNwLc0hTGo/IbdlwwTf4bF9E6cyV9HMTYVPlG3q+eJArSHcI4kAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T16:17:53.870350Z","bundle_sha256":"bff21554f6ef5c154eee8be45f8c392dce9babf8e64e2747f2b173ab109183cf"}}