{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:VDDSUFQX4CDHD4Z2KSRLQAC76N","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":"81a7c447ac395b2b07aafd95a1fe3f95cb93615ce915cdd5ca7d042ec048720b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2015-12-22T23:55:38Z","title_canon_sha256":"7666dc3277d5eb4c3fd304dfe94192d9bdaeac7e5e4fafd11cab907a9ec8fc8e"},"schema_version":"1.0","source":{"id":"1512.07305","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.07305","created_at":"2026-05-18T01:19:11Z"},{"alias_kind":"arxiv_version","alias_value":"1512.07305v2","created_at":"2026-05-18T01:19:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.07305","created_at":"2026-05-18T01:19:11Z"},{"alias_kind":"pith_short_12","alias_value":"VDDSUFQX4CDH","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"VDDSUFQX4CDHD4Z2","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"VDDSUFQX","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:c71943289c9ac96c670b079ac6e4fe768b4477885ea880e66d4d2ed9c4b43915","target":"graph","created_at":"2026-05-18T01:19:11Z","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":"A phaser is an expressive synchronization construct that unifies collective and point-to-point coordination with dynamic task parallelism. Each task can participate in a phaser as a signaler, a waiter, or both. The participants in a phaser may change over time as dynamic tasks are added and deleted. In this poster, we present a highly concurrent and scalable design of phasers for a distributed memory environment that is suitable for use with asynchronous partitioned global address space programming models. Our design for a distributed phaser employs a pair of skip lists augmented with the abil","authors_text":"John Mellor-Crummey, Karthik Murthy, Kuldeep S. Meel, Sri Raj Paul","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2015-12-22T23:55:38Z","title":"Distributed Phasers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.07305","kind":"arxiv","version":2},"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:c16400e28abad410b445a36324f0989128c61585e7d0dfa8dd34eae94c3cde54","target":"record","created_at":"2026-05-18T01:19:11Z","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":"81a7c447ac395b2b07aafd95a1fe3f95cb93615ce915cdd5ca7d042ec048720b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2015-12-22T23:55:38Z","title_canon_sha256":"7666dc3277d5eb4c3fd304dfe94192d9bdaeac7e5e4fafd11cab907a9ec8fc8e"},"schema_version":"1.0","source":{"id":"1512.07305","kind":"arxiv","version":2}},"canonical_sha256":"a8c72a1617e08671f33a54a2b8005ff359e35795a948658460b3f92ae3bd2799","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a8c72a1617e08671f33a54a2b8005ff359e35795a948658460b3f92ae3bd2799","first_computed_at":"2026-05-18T01:19:11.158859Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:19:11.158859Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sv/gUlfMyPk2LD9fMR8HjOVpKdTwoty62hzZQT/WcKoIedIB60kIr6vNYBx9W16IDSrvV+ZtS25Rq1nrIlnXCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:19:11.161913Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.07305","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c16400e28abad410b445a36324f0989128c61585e7d0dfa8dd34eae94c3cde54","sha256:c71943289c9ac96c670b079ac6e4fe768b4477885ea880e66d4d2ed9c4b43915"],"state_sha256":"4a2617bbadebf0797cb4460766f880a4f92ad95eaee04988302b0555b6e0c134"}