{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:QUXE2KPG5YNK6RHOF23LYRQLLQ","short_pith_number":"pith:QUXE2KPG","canonical_record":{"source":{"id":"1509.08955","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2015-09-29T21:17:56Z","cross_cats_sorted":[],"title_canon_sha256":"7712a05d5ae82395719b269bcc7ac3f5284939fecb5ac37cbb62dbb7f2bcf30f","abstract_canon_sha256":"b23f6e7eedccb3aab338ae04e78b6dbd38473e9fae920f42e5fe063e92f35665"},"schema_version":"1.0"},"canonical_sha256":"852e4d29e6ee1aaf44ee2eb6bc460b5c0a06ce427a082247e00de1594c20b1e4","source":{"kind":"arxiv","id":"1509.08955","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.08955","created_at":"2026-05-18T01:31:29Z"},{"alias_kind":"arxiv_version","alias_value":"1509.08955v1","created_at":"2026-05-18T01:31:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.08955","created_at":"2026-05-18T01:31:29Z"},{"alias_kind":"pith_short_12","alias_value":"QUXE2KPG5YNK","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"QUXE2KPG5YNK6RHO","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"QUXE2KPG","created_at":"2026-05-18T12:29:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:QUXE2KPG5YNK6RHOF23LYRQLLQ","target":"record","payload":{"canonical_record":{"source":{"id":"1509.08955","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2015-09-29T21:17:56Z","cross_cats_sorted":[],"title_canon_sha256":"7712a05d5ae82395719b269bcc7ac3f5284939fecb5ac37cbb62dbb7f2bcf30f","abstract_canon_sha256":"b23f6e7eedccb3aab338ae04e78b6dbd38473e9fae920f42e5fe063e92f35665"},"schema_version":"1.0"},"canonical_sha256":"852e4d29e6ee1aaf44ee2eb6bc460b5c0a06ce427a082247e00de1594c20b1e4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:31:29.412257Z","signature_b64":"uPc+TASOkB/d9IYmSElYtwVZG+7ZqW3/0fL59ICxvwstb7iET3QwKTE3gccs5uOyCTiihCKvLdN4UVrBADUWBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"852e4d29e6ee1aaf44ee2eb6bc460b5c0a06ce427a082247e00de1594c20b1e4","last_reissued_at":"2026-05-18T01:31:29.411582Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:31:29.411582Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.08955","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":"2026-05-18T01:31:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3W5lXNulROmzPuHW+0fvSX9FLbxp72DI0VvlFYN5zXMvQWkOHJDabF2a65p8/nCIp/6udbyMPyVj1lESFV+fAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T23:29:11.414617Z"},"content_sha256":"07cb87b8020ac8671f9f9412b4641a7217b44cb245b2b942864b2f18801517cf","schema_version":"1.0","event_id":"sha256:07cb87b8020ac8671f9f9412b4641a7217b44cb245b2b942864b2f18801517cf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:QUXE2KPG5YNK6RHOF23LYRQLLQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"GRAPLEr: A Distributed Collaborative Environment for Lake Ecosystem Modeling that Integrates Overlay Networks, High-throughput Computing, and Web Services","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DC","authors_text":"Cayelan C. Carey, Kensworth Subratie, Paul Hanson, Renato Figueiredo, Saumitra Aditya","submitted_at":"2015-09-29T21:17:56Z","abstract_excerpt":"The GLEON Research And PRAGMA Lake Expedition -- GRAPLE -- is a collaborative effort between computer science and lake ecology researchers. It aims to improve our understanding and predictive capacity of the threats to the water quality of our freshwater resources, including climate change. This paper presents GRAPLEr, a distributed computing system used to address the modeling needs of GRAPLE researchers. GRAPLEr integrates and applies overlay virtual network, high-throughput computing, and Web service technologies in a novel way. First, its user-level IP-over-P2P (IPOP) overlay network allow"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.08955","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":"2026-05-18T01:31:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Rvp/F5gbqgStTuvEE4rzrc7npkELKNmy2kFWYUl6os3ojw23kXUBZQft8zCPGebuCjqn0CCs8D9/npA0QmEGBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T23:29:11.415160Z"},"content_sha256":"6be75d6070efbc148adbeb7d23e7af802a4fa85aafce79cd23145edef7c4e46f","schema_version":"1.0","event_id":"sha256:6be75d6070efbc148adbeb7d23e7af802a4fa85aafce79cd23145edef7c4e46f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QUXE2KPG5YNK6RHOF23LYRQLLQ/bundle.json","state_url":"https://pith.science/pith/QUXE2KPG5YNK6RHOF23LYRQLLQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QUXE2KPG5YNK6RHOF23LYRQLLQ/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":"2026-06-02T23:29:11Z","links":{"resolver":"https://pith.science/pith/QUXE2KPG5YNK6RHOF23LYRQLLQ","bundle":"https://pith.science/pith/QUXE2KPG5YNK6RHOF23LYRQLLQ/bundle.json","state":"https://pith.science/pith/QUXE2KPG5YNK6RHOF23LYRQLLQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QUXE2KPG5YNK6RHOF23LYRQLLQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:QUXE2KPG5YNK6RHOF23LYRQLLQ","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":"b23f6e7eedccb3aab338ae04e78b6dbd38473e9fae920f42e5fe063e92f35665","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2015-09-29T21:17:56Z","title_canon_sha256":"7712a05d5ae82395719b269bcc7ac3f5284939fecb5ac37cbb62dbb7f2bcf30f"},"schema_version":"1.0","source":{"id":"1509.08955","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.08955","created_at":"2026-05-18T01:31:29Z"},{"alias_kind":"arxiv_version","alias_value":"1509.08955v1","created_at":"2026-05-18T01:31:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.08955","created_at":"2026-05-18T01:31:29Z"},{"alias_kind":"pith_short_12","alias_value":"QUXE2KPG5YNK","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"QUXE2KPG5YNK6RHO","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"QUXE2KPG","created_at":"2026-05-18T12:29:39Z"}],"graph_snapshots":[{"event_id":"sha256:6be75d6070efbc148adbeb7d23e7af802a4fa85aafce79cd23145edef7c4e46f","target":"graph","created_at":"2026-05-18T01:31:29Z","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 GLEON Research And PRAGMA Lake Expedition -- GRAPLE -- is a collaborative effort between computer science and lake ecology researchers. It aims to improve our understanding and predictive capacity of the threats to the water quality of our freshwater resources, including climate change. This paper presents GRAPLEr, a distributed computing system used to address the modeling needs of GRAPLE researchers. GRAPLEr integrates and applies overlay virtual network, high-throughput computing, and Web service technologies in a novel way. First, its user-level IP-over-P2P (IPOP) overlay network allow","authors_text":"Cayelan C. Carey, Kensworth Subratie, Paul Hanson, Renato Figueiredo, Saumitra Aditya","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2015-09-29T21:17:56Z","title":"GRAPLEr: A Distributed Collaborative Environment for Lake Ecosystem Modeling that Integrates Overlay Networks, High-throughput Computing, and Web Services"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.08955","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":"sha256:07cb87b8020ac8671f9f9412b4641a7217b44cb245b2b942864b2f18801517cf","target":"record","created_at":"2026-05-18T01:31:29Z","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":"b23f6e7eedccb3aab338ae04e78b6dbd38473e9fae920f42e5fe063e92f35665","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2015-09-29T21:17:56Z","title_canon_sha256":"7712a05d5ae82395719b269bcc7ac3f5284939fecb5ac37cbb62dbb7f2bcf30f"},"schema_version":"1.0","source":{"id":"1509.08955","kind":"arxiv","version":1}},"canonical_sha256":"852e4d29e6ee1aaf44ee2eb6bc460b5c0a06ce427a082247e00de1594c20b1e4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"852e4d29e6ee1aaf44ee2eb6bc460b5c0a06ce427a082247e00de1594c20b1e4","first_computed_at":"2026-05-18T01:31:29.411582Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:31:29.411582Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uPc+TASOkB/d9IYmSElYtwVZG+7ZqW3/0fL59ICxvwstb7iET3QwKTE3gccs5uOyCTiihCKvLdN4UVrBADUWBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:31:29.412257Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.08955","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:07cb87b8020ac8671f9f9412b4641a7217b44cb245b2b942864b2f18801517cf","sha256:6be75d6070efbc148adbeb7d23e7af802a4fa85aafce79cd23145edef7c4e46f"],"state_sha256":"267021040bd14ee7492f90a5232d0d3958d4e330ea669e092d2f1a8933d30f48"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4ryrXIj6Dpg7iPX8PTh7xHGt0RfLPQUOZdeS7TI0yGEEUI5ndI3YBKZnBrQrXmkud6lsnOjMoz8RVI6NGdIrBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T23:29:11.417801Z","bundle_sha256":"d38c792ae109f6dd1a80e1dbb5f3f02fcfc86d8a2394bbfd7031b7f9a8d2f0b6"}}