{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:P3BKUBUMRE3W3PGJ4G3ISFQBYC","short_pith_number":"pith:P3BKUBUM","canonical_record":{"source":{"id":"1405.4709","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2014-05-19T13:10:09Z","cross_cats_sorted":[],"title_canon_sha256":"5c413db0ce9016ec3b44801dce7b618feaab7e6ef50e727014f3e3f140eccbec","abstract_canon_sha256":"c99d3a630078888742f38d48f459dee66e699ba61a82f5c0311d4c435fe84744"},"schema_version":"1.0"},"canonical_sha256":"7ec2aa068c89376dbcc9e1b6891601c0a77305c38e4fa09e69d0c37212a02055","source":{"kind":"arxiv","id":"1405.4709","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.4709","created_at":"2026-05-18T02:51:34Z"},{"alias_kind":"arxiv_version","alias_value":"1405.4709v1","created_at":"2026-05-18T02:51:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.4709","created_at":"2026-05-18T02:51:34Z"},{"alias_kind":"pith_short_12","alias_value":"P3BKUBUMRE3W","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"P3BKUBUMRE3W3PGJ","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"P3BKUBUM","created_at":"2026-05-18T12:28:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:P3BKUBUMRE3W3PGJ4G3ISFQBYC","target":"record","payload":{"canonical_record":{"source":{"id":"1405.4709","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2014-05-19T13:10:09Z","cross_cats_sorted":[],"title_canon_sha256":"5c413db0ce9016ec3b44801dce7b618feaab7e6ef50e727014f3e3f140eccbec","abstract_canon_sha256":"c99d3a630078888742f38d48f459dee66e699ba61a82f5c0311d4c435fe84744"},"schema_version":"1.0"},"canonical_sha256":"7ec2aa068c89376dbcc9e1b6891601c0a77305c38e4fa09e69d0c37212a02055","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:51:34.815286Z","signature_b64":"VarbNgfpWRpDO/VhL8BPDZ7hWfSZaTVgQ5ebG8dpjzt4ahl4Fr97VJI42fjG5y+RcWoi8d/XPed0PCV8AtIDBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7ec2aa068c89376dbcc9e1b6891601c0a77305c38e4fa09e69d0c37212a02055","last_reissued_at":"2026-05-18T02:51:34.814827Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:51:34.814827Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1405.4709","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":"2026-05-18T02:51:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7cHOl7r8U+Hx6IcNFk9nbxXp4W+btQpzCPRTS7KKDk2ajaz1vTh1PWTXsdCUJuUzG4vncZ5q/WYXIavXwAWBDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T09:24:13.662553Z"},"content_sha256":"0e84f3365e36d806b58babd9db7b2e59cf75f8a1411d6777aae7081686b8a150","schema_version":"1.0","event_id":"sha256:0e84f3365e36d806b58babd9db7b2e59cf75f8a1411d6777aae7081686b8a150"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:P3BKUBUMRE3W3PGJ4G3ISFQBYC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"YouTube QoE Evaluation Tool for Android Wireless Terminals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.MM","authors_text":"Gerardo Gomez, Javier Lorca, Lorenzo Hortiguela, Mari Carmen Aguayo-Torres, Quiliano Perez, Raquel Garcia","submitted_at":"2014-05-19T13:10:09Z","abstract_excerpt":"In this paper, we present an Android application which is able to evaluate and analyze the perceived Quality of Experience (QoE) for YouTube service in wireless terminals. To achieve this goal, the application carries out measurements of objective Quality of Service (QoS) parameters, which are then mapped onto subjective QoE (in terms of Mean Opinion Score, MOS) by means of a utility function. Our application also informs the user about potential causes that lead to a low MOS as well as provides some hints to improve it. After each YouTube session, the users may optionally qualify the session "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.4709","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":"2026-05-18T02:51:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XNo4pUnNU6/vlfCD72vj3BybPU2fklGZeuqloQBIewns68XLBsgPaySPxJWznZrxXpIiQb0VHIWOAcHr/KsJCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T09:24:13.663277Z"},"content_sha256":"1e945ced8d15dbc2cabab777ec049c901eba349bf88b751975ec4c07141efeca","schema_version":"1.0","event_id":"sha256:1e945ced8d15dbc2cabab777ec049c901eba349bf88b751975ec4c07141efeca"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P3BKUBUMRE3W3PGJ4G3ISFQBYC/bundle.json","state_url":"https://pith.science/pith/P3BKUBUMRE3W3PGJ4G3ISFQBYC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P3BKUBUMRE3W3PGJ4G3ISFQBYC/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":"2026-05-31T09:24:13Z","links":{"resolver":"https://pith.science/pith/P3BKUBUMRE3W3PGJ4G3ISFQBYC","bundle":"https://pith.science/pith/P3BKUBUMRE3W3PGJ4G3ISFQBYC/bundle.json","state":"https://pith.science/pith/P3BKUBUMRE3W3PGJ4G3ISFQBYC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P3BKUBUMRE3W3PGJ4G3ISFQBYC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:P3BKUBUMRE3W3PGJ4G3ISFQBYC","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":"c99d3a630078888742f38d48f459dee66e699ba61a82f5c0311d4c435fe84744","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2014-05-19T13:10:09Z","title_canon_sha256":"5c413db0ce9016ec3b44801dce7b618feaab7e6ef50e727014f3e3f140eccbec"},"schema_version":"1.0","source":{"id":"1405.4709","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.4709","created_at":"2026-05-18T02:51:34Z"},{"alias_kind":"arxiv_version","alias_value":"1405.4709v1","created_at":"2026-05-18T02:51:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.4709","created_at":"2026-05-18T02:51:34Z"},{"alias_kind":"pith_short_12","alias_value":"P3BKUBUMRE3W","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"P3BKUBUMRE3W3PGJ","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"P3BKUBUM","created_at":"2026-05-18T12:28:43Z"}],"graph_snapshots":[{"event_id":"sha256:1e945ced8d15dbc2cabab777ec049c901eba349bf88b751975ec4c07141efeca","target":"graph","created_at":"2026-05-18T02:51:34Z","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":"In this paper, we present an Android application which is able to evaluate and analyze the perceived Quality of Experience (QoE) for YouTube service in wireless terminals. To achieve this goal, the application carries out measurements of objective Quality of Service (QoS) parameters, which are then mapped onto subjective QoE (in terms of Mean Opinion Score, MOS) by means of a utility function. Our application also informs the user about potential causes that lead to a low MOS as well as provides some hints to improve it. After each YouTube session, the users may optionally qualify the session ","authors_text":"Gerardo Gomez, Javier Lorca, Lorenzo Hortiguela, Mari Carmen Aguayo-Torres, Quiliano Perez, Raquel Garcia","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2014-05-19T13:10:09Z","title":"YouTube QoE Evaluation Tool for Android Wireless Terminals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.4709","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":"sha256:0e84f3365e36d806b58babd9db7b2e59cf75f8a1411d6777aae7081686b8a150","target":"record","created_at":"2026-05-18T02:51:34Z","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":"c99d3a630078888742f38d48f459dee66e699ba61a82f5c0311d4c435fe84744","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2014-05-19T13:10:09Z","title_canon_sha256":"5c413db0ce9016ec3b44801dce7b618feaab7e6ef50e727014f3e3f140eccbec"},"schema_version":"1.0","source":{"id":"1405.4709","kind":"arxiv","version":1}},"canonical_sha256":"7ec2aa068c89376dbcc9e1b6891601c0a77305c38e4fa09e69d0c37212a02055","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7ec2aa068c89376dbcc9e1b6891601c0a77305c38e4fa09e69d0c37212a02055","first_computed_at":"2026-05-18T02:51:34.814827Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:51:34.814827Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VarbNgfpWRpDO/VhL8BPDZ7hWfSZaTVgQ5ebG8dpjzt4ahl4Fr97VJI42fjG5y+RcWoi8d/XPed0PCV8AtIDBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:51:34.815286Z","signed_message":"canonical_sha256_bytes"},"source_id":"1405.4709","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e84f3365e36d806b58babd9db7b2e59cf75f8a1411d6777aae7081686b8a150","sha256:1e945ced8d15dbc2cabab777ec049c901eba349bf88b751975ec4c07141efeca"],"state_sha256":"55c97a8cb2639714ec80e9576583f35664bb915319344d8e8764eab4aafc55f4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p9cV5f0XP0RnaGqHOZWSLAJyvOtchAAEzQuKvRKjSb7fQYJHo1C9h3O3QSfJGF3km3DiAUxX5emuc9HLuk7iCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T09:24:13.666944Z","bundle_sha256":"a41a8bee5ce2f99cfd50f5e034fa2f595a893e059a202a00dbbf60ae53f9a6d4"}}