{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:F2M6B7PGIS4SEYFQMENCXNADUB","short_pith_number":"pith:F2M6B7PG","canonical_record":{"source":{"id":"2208.04246","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2022-08-08T16:17:36Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"64e0ea7e199445fb18c6a5dd0c3c722ae8e28fddbddacc4243f30d71e1f15270","abstract_canon_sha256":"cf1d65ae9683f5677a103963a0b63e577e8effba61524e42da83b36af8940520"},"schema_version":"1.0"},"canonical_sha256":"2e99e0fde644b92260b0611a2bb403a0591b2db5ad56ff46ef359d0cf08e413f","source":{"kind":"arxiv","id":"2208.04246","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.04246","created_at":"2026-07-05T04:46:49Z"},{"alias_kind":"arxiv_version","alias_value":"2208.04246v1","created_at":"2026-07-05T04:46:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.04246","created_at":"2026-07-05T04:46:49Z"},{"alias_kind":"pith_short_12","alias_value":"F2M6B7PGIS4S","created_at":"2026-07-05T04:46:49Z"},{"alias_kind":"pith_short_16","alias_value":"F2M6B7PGIS4SEYFQ","created_at":"2026-07-05T04:46:49Z"},{"alias_kind":"pith_short_8","alias_value":"F2M6B7PG","created_at":"2026-07-05T04:46:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:F2M6B7PGIS4SEYFQMENCXNADUB","target":"record","payload":{"canonical_record":{"source":{"id":"2208.04246","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2022-08-08T16:17:36Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"64e0ea7e199445fb18c6a5dd0c3c722ae8e28fddbddacc4243f30d71e1f15270","abstract_canon_sha256":"cf1d65ae9683f5677a103963a0b63e577e8effba61524e42da83b36af8940520"},"schema_version":"1.0"},"canonical_sha256":"2e99e0fde644b92260b0611a2bb403a0591b2db5ad56ff46ef359d0cf08e413f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:46:49.198309Z","signature_b64":"wpsVHfQsRFH7EQhb3SamQLb0Nx/+DgDorhp0sF3sXRtttq7uRx/LpMPz5jBRMd2FQ69f30fFL2sjQCXjHDpAAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2e99e0fde644b92260b0611a2bb403a0591b2db5ad56ff46ef359d0cf08e413f","last_reissued_at":"2026-07-05T04:46:49.197921Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:46:49.197921Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2208.04246","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":"2026-07-05T04:46:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6XzwFDPtthf/+Xn5ivcr+cGUnLL19z54UTZ0imG8RTSKYkVyHvh8u+F73yD8twK1ONrEAcrOLejfTRfCppbXAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-28T22:13:22.760875Z"},"content_sha256":"e91b530312d2d483156b70074898f08608ed5df812dd1685edd65dc3a097c7de","schema_version":"1.0","event_id":"sha256:e91b530312d2d483156b70074898f08608ed5df812dd1685edd65dc3a097c7de"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:F2M6B7PGIS4SEYFQMENCXNADUB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Snowpack Estimation in Key Mountainous Water Basins from Openly-Available, Multimodal Data Sources","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.LG"],"primary_cat":"cs.CV","authors_text":"Alberto Todeschini, Colorado J Reed, Daniel Feldman, Derrick Hee, Kayla Woputz, Malachy Moran, Manuela Girotto, Paolo D'Odorico, Puya Vahabi, Ritwik Gupta","submitted_at":"2022-08-08T16:17:36Z","abstract_excerpt":"Accurately estimating the snowpack in key mountainous basins is critical for water resource managers to make decisions that impact local and global economies, wildlife, and public policy. Currently, this estimation requires multiple LiDAR-equipped plane flights or in situ measurements, both of which are expensive, sparse, and biased towards accessible regions. In this paper, we demonstrate that fusing spatial and temporal information from multiple, openly-available satellite and weather data sources enables estimation of snowpack in key mountainous regions. Our multisource model outperforms si"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.04246","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/2208.04246/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":"2026-07-05T04:46:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4Hi9MeLH1kYaqRkt8P09Lgy6KrWq1eZFgMexQw9lhB8HeGeRRAAMW2FtCNZkERKCvZH7C5yL9MpKkLuwh6WcCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-28T22:13:22.761257Z"},"content_sha256":"9fc13f124358c4d41ec58d13c111abd1599672db938d1996adf337f89ed25445","schema_version":"1.0","event_id":"sha256:9fc13f124358c4d41ec58d13c111abd1599672db938d1996adf337f89ed25445"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F2M6B7PGIS4SEYFQMENCXNADUB/bundle.json","state_url":"https://pith.science/pith/F2M6B7PGIS4SEYFQMENCXNADUB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F2M6B7PGIS4SEYFQMENCXNADUB/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":"2026-07-28T22:13:22Z","links":{"resolver":"https://pith.science/pith/F2M6B7PGIS4SEYFQMENCXNADUB","bundle":"https://pith.science/pith/F2M6B7PGIS4SEYFQMENCXNADUB/bundle.json","state":"https://pith.science/pith/F2M6B7PGIS4SEYFQMENCXNADUB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F2M6B7PGIS4SEYFQMENCXNADUB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:F2M6B7PGIS4SEYFQMENCXNADUB","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":"cf1d65ae9683f5677a103963a0b63e577e8effba61524e42da83b36af8940520","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2022-08-08T16:17:36Z","title_canon_sha256":"64e0ea7e199445fb18c6a5dd0c3c722ae8e28fddbddacc4243f30d71e1f15270"},"schema_version":"1.0","source":{"id":"2208.04246","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.04246","created_at":"2026-07-05T04:46:49Z"},{"alias_kind":"arxiv_version","alias_value":"2208.04246v1","created_at":"2026-07-05T04:46:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.04246","created_at":"2026-07-05T04:46:49Z"},{"alias_kind":"pith_short_12","alias_value":"F2M6B7PGIS4S","created_at":"2026-07-05T04:46:49Z"},{"alias_kind":"pith_short_16","alias_value":"F2M6B7PGIS4SEYFQ","created_at":"2026-07-05T04:46:49Z"},{"alias_kind":"pith_short_8","alias_value":"F2M6B7PG","created_at":"2026-07-05T04:46:49Z"}],"graph_snapshots":[{"event_id":"sha256:9fc13f124358c4d41ec58d13c111abd1599672db938d1996adf337f89ed25445","target":"graph","created_at":"2026-07-05T04:46:49Z","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/2208.04246/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Accurately estimating the snowpack in key mountainous basins is critical for water resource managers to make decisions that impact local and global economies, wildlife, and public policy. Currently, this estimation requires multiple LiDAR-equipped plane flights or in situ measurements, both of which are expensive, sparse, and biased towards accessible regions. In this paper, we demonstrate that fusing spatial and temporal information from multiple, openly-available satellite and weather data sources enables estimation of snowpack in key mountainous regions. Our multisource model outperforms si","authors_text":"Alberto Todeschini, Colorado J Reed, Daniel Feldman, Derrick Hee, Kayla Woputz, Malachy Moran, Manuela Girotto, Paolo D'Odorico, Puya Vahabi, Ritwik Gupta","cross_cats":["cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2022-08-08T16:17:36Z","title":"Snowpack Estimation in Key Mountainous Water Basins from Openly-Available, Multimodal Data Sources"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.04246","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:e91b530312d2d483156b70074898f08608ed5df812dd1685edd65dc3a097c7de","target":"record","created_at":"2026-07-05T04:46:49Z","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":"cf1d65ae9683f5677a103963a0b63e577e8effba61524e42da83b36af8940520","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2022-08-08T16:17:36Z","title_canon_sha256":"64e0ea7e199445fb18c6a5dd0c3c722ae8e28fddbddacc4243f30d71e1f15270"},"schema_version":"1.0","source":{"id":"2208.04246","kind":"arxiv","version":1}},"canonical_sha256":"2e99e0fde644b92260b0611a2bb403a0591b2db5ad56ff46ef359d0cf08e413f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2e99e0fde644b92260b0611a2bb403a0591b2db5ad56ff46ef359d0cf08e413f","first_computed_at":"2026-07-05T04:46:49.197921Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:46:49.197921Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wpsVHfQsRFH7EQhb3SamQLb0Nx/+DgDorhp0sF3sXRtttq7uRx/LpMPz5jBRMd2FQ69f30fFL2sjQCXjHDpAAw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:46:49.198309Z","signed_message":"canonical_sha256_bytes"},"source_id":"2208.04246","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e91b530312d2d483156b70074898f08608ed5df812dd1685edd65dc3a097c7de","sha256:9fc13f124358c4d41ec58d13c111abd1599672db938d1996adf337f89ed25445"],"state_sha256":"5d50743c12f25308cded90004a45116ddba62e34ce2497f6ad357c0de08dc1b5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X8S7ju9xqpalQ2hoM7nt6wo4s42ZJ1psseWuJ5EjUzKxgxKivCOW0gxJ4yJP/tN7A+xubLoNgdLYIiP9k2nSCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-28T22:13:22.763784Z","bundle_sha256":"d3d5110cd9a4c24ae4a30da47e308cb1a9114aca31873b5a7a051e0d2e7121fe"}}