{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:CTA7JKTVKGIMMQWDERZT7ZUV2Y","short_pith_number":"pith:CTA7JKTV","canonical_record":{"source":{"id":"1910.02613","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2019-10-07T05:29:35Z","cross_cats_sorted":[],"title_canon_sha256":"33115b6e50c7c45ae5f280210745b731fcf0f00c3868bb51b0b59ec15bfd744a","abstract_canon_sha256":"d3b048450e7f16b52ee7c465e2fd1e30931557c3f9a8ab404d1ffc99bcf4ea94"},"schema_version":"1.0"},"canonical_sha256":"14c1f4aa755190c642c324733fe695d633a29359b38db3fc54b0891da1755d0e","source":{"kind":"arxiv","id":"1910.02613","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.02613","created_at":"2026-07-05T00:10:09Z"},{"alias_kind":"arxiv_version","alias_value":"1910.02613v1","created_at":"2026-07-05T00:10:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.02613","created_at":"2026-07-05T00:10:09Z"},{"alias_kind":"pith_short_12","alias_value":"CTA7JKTVKGIM","created_at":"2026-07-05T00:10:09Z"},{"alias_kind":"pith_short_16","alias_value":"CTA7JKTVKGIMMQWD","created_at":"2026-07-05T00:10:09Z"},{"alias_kind":"pith_short_8","alias_value":"CTA7JKTV","created_at":"2026-07-05T00:10:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:CTA7JKTVKGIMMQWDERZT7ZUV2Y","target":"record","payload":{"canonical_record":{"source":{"id":"1910.02613","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2019-10-07T05:29:35Z","cross_cats_sorted":[],"title_canon_sha256":"33115b6e50c7c45ae5f280210745b731fcf0f00c3868bb51b0b59ec15bfd744a","abstract_canon_sha256":"d3b048450e7f16b52ee7c465e2fd1e30931557c3f9a8ab404d1ffc99bcf4ea94"},"schema_version":"1.0"},"canonical_sha256":"14c1f4aa755190c642c324733fe695d633a29359b38db3fc54b0891da1755d0e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:10:09.971768Z","signature_b64":"I6aqQKmOqRLKXrB4q6k7bYqUcXhAxHfMM91HxmY96i9K3XXTuh+6bQwM0qyCwQp/vlEbiC275I7Pkv+RaFjbAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"14c1f4aa755190c642c324733fe695d633a29359b38db3fc54b0891da1755d0e","last_reissued_at":"2026-07-05T00:10:09.971355Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:10:09.971355Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1910.02613","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":"2026-07-05T00:10:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BexhBKX5tbiIdouy21unLuuF/HyBy6sa7gFQHSgSRZ3f7oUgNqXYVzd/SKuX6kYSC4QWOyfsHXEJLwRbMGilDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T13:45:40.347102Z"},"content_sha256":"75117f72183437d2dda9c357da7e6a409dce31a00f98cba581ae2079fa269a4a","schema_version":"1.0","event_id":"sha256:75117f72183437d2dda9c357da7e6a409dce31a00f98cba581ae2079fa269a4a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:CTA7JKTVKGIMMQWDERZT7ZUV2Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Placement and Routing Optimization Problem for Service Function Chain: State of Art and Future Opportunities","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.NI","authors_text":"Weihan Chen, Xia Yin, Xingang Shi, Zhiliang Wang","submitted_at":"2019-10-07T05:29:35Z","abstract_excerpt":"Network Functions Virtualization (NFV) allows implantation of network functions to be independent of dedicated hardware devices. Any series of services can be represented by a service function chain which contains a set of virtualized network functions in a specified order. From the perspective of network performance optimization, the challenges of deploying service chain in network is twofold: 1) the location of placing virtualized network functions and resources allocation scheme; and 2) routing policy for traffic flow among different instances of network function. This article introduces se"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.02613","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1910.02613/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T00:10:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yFzVyr9/XaCZ/WGYop4XmWrSgzEIZuPLEWwIB0v+vbCd14M8AXIy0pjtURgQs3HomNczjRAhtS1v1BP38HWEBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T13:45:40.347720Z"},"content_sha256":"d4394545e728f2ee1283d9bef2c12eaff16cf37d1d21b2cffeb300a708a23b92","schema_version":"1.0","event_id":"sha256:d4394545e728f2ee1283d9bef2c12eaff16cf37d1d21b2cffeb300a708a23b92"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CTA7JKTVKGIMMQWDERZT7ZUV2Y/bundle.json","state_url":"https://pith.science/pith/CTA7JKTVKGIMMQWDERZT7ZUV2Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CTA7JKTVKGIMMQWDERZT7ZUV2Y/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":"2026-08-10T13:45:40Z","links":{"resolver":"https://pith.science/pith/CTA7JKTVKGIMMQWDERZT7ZUV2Y","bundle":"https://pith.science/pith/CTA7JKTVKGIMMQWDERZT7ZUV2Y/bundle.json","state":"https://pith.science/pith/CTA7JKTVKGIMMQWDERZT7ZUV2Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CTA7JKTVKGIMMQWDERZT7ZUV2Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:CTA7JKTVKGIMMQWDERZT7ZUV2Y","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":"d3b048450e7f16b52ee7c465e2fd1e30931557c3f9a8ab404d1ffc99bcf4ea94","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2019-10-07T05:29:35Z","title_canon_sha256":"33115b6e50c7c45ae5f280210745b731fcf0f00c3868bb51b0b59ec15bfd744a"},"schema_version":"1.0","source":{"id":"1910.02613","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.02613","created_at":"2026-07-05T00:10:09Z"},{"alias_kind":"arxiv_version","alias_value":"1910.02613v1","created_at":"2026-07-05T00:10:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.02613","created_at":"2026-07-05T00:10:09Z"},{"alias_kind":"pith_short_12","alias_value":"CTA7JKTVKGIM","created_at":"2026-07-05T00:10:09Z"},{"alias_kind":"pith_short_16","alias_value":"CTA7JKTVKGIMMQWD","created_at":"2026-07-05T00:10:09Z"},{"alias_kind":"pith_short_8","alias_value":"CTA7JKTV","created_at":"2026-07-05T00:10:09Z"}],"graph_snapshots":[{"event_id":"sha256:d4394545e728f2ee1283d9bef2c12eaff16cf37d1d21b2cffeb300a708a23b92","target":"graph","created_at":"2026-07-05T00:10:09Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1910.02613/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Network Functions Virtualization (NFV) allows implantation of network functions to be independent of dedicated hardware devices. Any series of services can be represented by a service function chain which contains a set of virtualized network functions in a specified order. From the perspective of network performance optimization, the challenges of deploying service chain in network is twofold: 1) the location of placing virtualized network functions and resources allocation scheme; and 2) routing policy for traffic flow among different instances of network function. This article introduces se","authors_text":"Weihan Chen, Xia Yin, Xingang Shi, Zhiliang Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2019-10-07T05:29:35Z","title":"Placement and Routing Optimization Problem for Service Function Chain: State of Art and Future Opportunities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.02613","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":"sha256:75117f72183437d2dda9c357da7e6a409dce31a00f98cba581ae2079fa269a4a","target":"record","created_at":"2026-07-05T00:10:09Z","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":"d3b048450e7f16b52ee7c465e2fd1e30931557c3f9a8ab404d1ffc99bcf4ea94","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2019-10-07T05:29:35Z","title_canon_sha256":"33115b6e50c7c45ae5f280210745b731fcf0f00c3868bb51b0b59ec15bfd744a"},"schema_version":"1.0","source":{"id":"1910.02613","kind":"arxiv","version":1}},"canonical_sha256":"14c1f4aa755190c642c324733fe695d633a29359b38db3fc54b0891da1755d0e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"14c1f4aa755190c642c324733fe695d633a29359b38db3fc54b0891da1755d0e","first_computed_at":"2026-07-05T00:10:09.971355Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:10:09.971355Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"I6aqQKmOqRLKXrB4q6k7bYqUcXhAxHfMM91HxmY96i9K3XXTuh+6bQwM0qyCwQp/vlEbiC275I7Pkv+RaFjbAA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:10:09.971768Z","signed_message":"canonical_sha256_bytes"},"source_id":"1910.02613","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:75117f72183437d2dda9c357da7e6a409dce31a00f98cba581ae2079fa269a4a","sha256:d4394545e728f2ee1283d9bef2c12eaff16cf37d1d21b2cffeb300a708a23b92"],"state_sha256":"4e3e87c07f2a0f0737e39c14876b8dd3ed82359c8f984467a1c733e613f80814"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gu0LErV1Lke0mRPzUglb9FYnHdyhMfoxUGEQRP/MdbxfEQ/Y6hYeGKyrqJ1h62wln5wicKBJw0uXGNQf+RzqBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T13:45:40.351465Z","bundle_sha256":"2554caa1bcfeb5958b16b47adbb1bf937c5ea99a081fd00a40c9fc61c65cc17d"}}