{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:GPFFWPS2TIOOQW6E26W7L3S4AO","short_pith_number":"pith:GPFFWPS2","canonical_record":{"source":{"id":"1809.06181","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-09-17T13:13:14Z","cross_cats_sorted":[],"title_canon_sha256":"bbc805ee146c3274ae2238c1a3d98f5e50af78f0c5949d2fd6c4821f9036ee47","abstract_canon_sha256":"ba8ecde46548fe83ee5695cb42e7bdad632691bc0d456c674c30081dae76a778"},"schema_version":"1.0"},"canonical_sha256":"33ca5b3e5a9a1ce85bc4d7adf5ee5c0380ab356c5bfd396ae4a8d6f5b61fb4e9","source":{"kind":"arxiv","id":"1809.06181","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.06181","created_at":"2026-05-17T23:50:59Z"},{"alias_kind":"arxiv_version","alias_value":"1809.06181v3","created_at":"2026-05-17T23:50:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.06181","created_at":"2026-05-17T23:50:59Z"},{"alias_kind":"pith_short_12","alias_value":"GPFFWPS2TIOO","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"GPFFWPS2TIOOQW6E","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"GPFFWPS2","created_at":"2026-05-18T12:32:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:GPFFWPS2TIOOQW6E26W7L3S4AO","target":"record","payload":{"canonical_record":{"source":{"id":"1809.06181","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-09-17T13:13:14Z","cross_cats_sorted":[],"title_canon_sha256":"bbc805ee146c3274ae2238c1a3d98f5e50af78f0c5949d2fd6c4821f9036ee47","abstract_canon_sha256":"ba8ecde46548fe83ee5695cb42e7bdad632691bc0d456c674c30081dae76a778"},"schema_version":"1.0"},"canonical_sha256":"33ca5b3e5a9a1ce85bc4d7adf5ee5c0380ab356c5bfd396ae4a8d6f5b61fb4e9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:50:59.330845Z","signature_b64":"p5K2sDHcqFdjTLTPb4vkJeTaaMSuVkTNKEY7poTpn2lxaAnr9pIhtuGbx+leiJgqP9Nvkmj5LqJ9fqobyqVPAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"33ca5b3e5a9a1ce85bc4d7adf5ee5c0380ab356c5bfd396ae4a8d6f5b61fb4e9","last_reissued_at":"2026-05-17T23:50:59.330178Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:50:59.330178Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.06181","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:50:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7wi2ZZ7O3jiA0P8u2f4ziDwjl9ToHjMUpj5c6sYlTvT4CE2kVshO+h0VldUvcQS8AeLNUpukuTk3I7Sszb1UAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T07:22:38.647983Z"},"content_sha256":"cf3900e14fb0e147bf75a21a5f88541b8f8c1781fb7f8e59e60bd3a731fb6312","schema_version":"1.0","event_id":"sha256:cf3900e14fb0e147bf75a21a5f88541b8f8c1781fb7f8e59e60bd3a731fb6312"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:GPFFWPS2TIOOQW6E26W7L3S4AO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dual Encoding for Zero-Example Video Retrieval","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Chaoxi Xu, Gang Yang, Jianfeng Dong, Shouling Ji, Xirong Li, Xun Wang, Yuan He","submitted_at":"2018-09-17T13:13:14Z","abstract_excerpt":"This paper attacks the challenging problem of zero-example video retrieval. In such a retrieval paradigm, an end user searches for unlabeled videos by ad-hoc queries described in natural language text with no visual example provided. Given videos as sequences of frames and queries as sequences of words, an effective sequence-to-sequence cross-modal matching is required. The majority of existing methods are concept based, extracting relevant concepts from queries and videos and accordingly establishing associations between the two modalities. In contrast, this paper takes a concept-free approac"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.06181","kind":"arxiv","version":3},"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":"2026-05-17T23:50:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nPRBsCV0ESH50WkAEQHNL0WvAXtbWI8uycoqNBZHWQ4iYaipLju/WEYbXLjGxsvFJ0qkKn4p3soGtW7KzlBLCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T07:22:38.648340Z"},"content_sha256":"4b51621dc7baaa6c7c035dfc0c52a7c3c42a3aacc1d9f87c7234ae82334e9c1b","schema_version":"1.0","event_id":"sha256:4b51621dc7baaa6c7c035dfc0c52a7c3c42a3aacc1d9f87c7234ae82334e9c1b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GPFFWPS2TIOOQW6E26W7L3S4AO/bundle.json","state_url":"https://pith.science/pith/GPFFWPS2TIOOQW6E26W7L3S4AO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GPFFWPS2TIOOQW6E26W7L3S4AO/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":"2026-05-30T07:22:38Z","links":{"resolver":"https://pith.science/pith/GPFFWPS2TIOOQW6E26W7L3S4AO","bundle":"https://pith.science/pith/GPFFWPS2TIOOQW6E26W7L3S4AO/bundle.json","state":"https://pith.science/pith/GPFFWPS2TIOOQW6E26W7L3S4AO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GPFFWPS2TIOOQW6E26W7L3S4AO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:GPFFWPS2TIOOQW6E26W7L3S4AO","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":"ba8ecde46548fe83ee5695cb42e7bdad632691bc0d456c674c30081dae76a778","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-09-17T13:13:14Z","title_canon_sha256":"bbc805ee146c3274ae2238c1a3d98f5e50af78f0c5949d2fd6c4821f9036ee47"},"schema_version":"1.0","source":{"id":"1809.06181","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.06181","created_at":"2026-05-17T23:50:59Z"},{"alias_kind":"arxiv_version","alias_value":"1809.06181v3","created_at":"2026-05-17T23:50:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.06181","created_at":"2026-05-17T23:50:59Z"},{"alias_kind":"pith_short_12","alias_value":"GPFFWPS2TIOO","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"GPFFWPS2TIOOQW6E","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"GPFFWPS2","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:4b51621dc7baaa6c7c035dfc0c52a7c3c42a3aacc1d9f87c7234ae82334e9c1b","target":"graph","created_at":"2026-05-17T23:50:59Z","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":"This paper attacks the challenging problem of zero-example video retrieval. In such a retrieval paradigm, an end user searches for unlabeled videos by ad-hoc queries described in natural language text with no visual example provided. Given videos as sequences of frames and queries as sequences of words, an effective sequence-to-sequence cross-modal matching is required. The majority of existing methods are concept based, extracting relevant concepts from queries and videos and accordingly establishing associations between the two modalities. In contrast, this paper takes a concept-free approac","authors_text":"Chaoxi Xu, Gang Yang, Jianfeng Dong, Shouling Ji, Xirong Li, Xun Wang, Yuan He","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-09-17T13:13:14Z","title":"Dual Encoding for Zero-Example Video Retrieval"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.06181","kind":"arxiv","version":3},"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:cf3900e14fb0e147bf75a21a5f88541b8f8c1781fb7f8e59e60bd3a731fb6312","target":"record","created_at":"2026-05-17T23:50:59Z","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":"ba8ecde46548fe83ee5695cb42e7bdad632691bc0d456c674c30081dae76a778","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-09-17T13:13:14Z","title_canon_sha256":"bbc805ee146c3274ae2238c1a3d98f5e50af78f0c5949d2fd6c4821f9036ee47"},"schema_version":"1.0","source":{"id":"1809.06181","kind":"arxiv","version":3}},"canonical_sha256":"33ca5b3e5a9a1ce85bc4d7adf5ee5c0380ab356c5bfd396ae4a8d6f5b61fb4e9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"33ca5b3e5a9a1ce85bc4d7adf5ee5c0380ab356c5bfd396ae4a8d6f5b61fb4e9","first_computed_at":"2026-05-17T23:50:59.330178Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:50:59.330178Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"p5K2sDHcqFdjTLTPb4vkJeTaaMSuVkTNKEY7poTpn2lxaAnr9pIhtuGbx+leiJgqP9Nvkmj5LqJ9fqobyqVPAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:50:59.330845Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.06181","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cf3900e14fb0e147bf75a21a5f88541b8f8c1781fb7f8e59e60bd3a731fb6312","sha256:4b51621dc7baaa6c7c035dfc0c52a7c3c42a3aacc1d9f87c7234ae82334e9c1b"],"state_sha256":"4ca7c9e80877fb873342022273ecb023e265ccd4672a8ec29298a4d3e1feef86"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I7foi1KPHv+iZUBO4AL+aCki80mLHW+G763wi5F0Mnx8ZpWA/2lT9mZIm9XJPb1P/BBsmnptlfemiIqSw2niDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T07:22:38.650690Z","bundle_sha256":"7a078159d3864f490a6b2a7c486eed6a2015b3c8584d95629b09e28344d438cd"}}