{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:QCSAXVBWTI3ZERMITGRQOALXPM","short_pith_number":"pith:QCSAXVBW","canonical_record":{"source":{"id":"2412.18483","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-12-24T15:14:58Z","cross_cats_sorted":[],"title_canon_sha256":"835ed4836a38581b24c6900721e269c337ba5c488241d0a9948d3eeec58da53b","abstract_canon_sha256":"5fababe5193f9ac15ebcdf7f1755859b12a625285bfa8a9e7141343eef088f8e"},"schema_version":"1.0"},"canonical_sha256":"80a40bd4369a3792458899a30701777b2a39d6703c85997087fb034e569aa153","source":{"kind":"arxiv","id":"2412.18483","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.18483","created_at":"2026-07-05T09:53:56Z"},{"alias_kind":"arxiv_version","alias_value":"2412.18483v1","created_at":"2026-07-05T09:53:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.18483","created_at":"2026-07-05T09:53:56Z"},{"alias_kind":"pith_short_12","alias_value":"QCSAXVBWTI3Z","created_at":"2026-07-05T09:53:56Z"},{"alias_kind":"pith_short_16","alias_value":"QCSAXVBWTI3ZERMI","created_at":"2026-07-05T09:53:56Z"},{"alias_kind":"pith_short_8","alias_value":"QCSAXVBW","created_at":"2026-07-05T09:53:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:QCSAXVBWTI3ZERMITGRQOALXPM","target":"record","payload":{"canonical_record":{"source":{"id":"2412.18483","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-12-24T15:14:58Z","cross_cats_sorted":[],"title_canon_sha256":"835ed4836a38581b24c6900721e269c337ba5c488241d0a9948d3eeec58da53b","abstract_canon_sha256":"5fababe5193f9ac15ebcdf7f1755859b12a625285bfa8a9e7141343eef088f8e"},"schema_version":"1.0"},"canonical_sha256":"80a40bd4369a3792458899a30701777b2a39d6703c85997087fb034e569aa153","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:53:56.499207Z","signature_b64":"LIONI8kkXRKpK//rUhJTJ+7XiGpy4u41lJCvABqYKrLgHnl04wWrQMbeSEP5kdNWKQ+MNANPgIa3FhHp5qzPBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"80a40bd4369a3792458899a30701777b2a39d6703c85997087fb034e569aa153","last_reissued_at":"2026-07-05T09:53:56.498726Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:53:56.498726Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2412.18483","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":"2026-07-05T09:53:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fMVlcHYsmaSGbOp5zp+DBCecVOnJ9W1LaANKFn8nBqsxvQvXu1TduT3Q+cV+8zSHhryoYav6hktNJ4zJdBgmCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T03:12:13.148805Z"},"content_sha256":"346befb648492f783a812eb6b53ca65203ca0e9ac6bf7a54fa3ebae369c104d9","schema_version":"1.0","event_id":"sha256:346befb648492f783a812eb6b53ca65203ca0e9ac6bf7a54fa3ebae369c104d9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:QCSAXVBWTI3ZERMITGRQOALXPM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A region-wide, multi-year set of crop field boundary labels for Africa","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"A. Miroyo, A. Wussah, B.V. Yeboah, C. Juma, D.A. Nyarko, E. Amponsem, E. Heltzel, E.S. Akakpo, F.K. Addai, F. Mwawaza, F. Wambua, F. Yeboah, G.H. Xeflide, J. Mucha, J. Mugami, J. Muhando, K.D. Donkoh, K.N. Ohemeng, L.D. Estes, M. Asipunu, M. Gathigi, M.K. Allotey, N. Ha, P. Amkoya, P. Kova\\v{c}i\\v{c}, P. Oduor, R. Mdawida, S.I.D. Segbefia, S. Ye, T. Tumbula","submitted_at":"2024-12-24T15:14:58Z","abstract_excerpt":"African agriculture is undergoing rapid transformation. Annual maps of crop fields are key to understanding the nature of this transformation, but such maps are currently lacking and must be developed using advanced machine learning models trained on high resolution remote sensing imagery. To enable the development of such models, we delineated field boundaries in 33,746 Planet images captured between 2017 and 2023 across the continent using a custom labeling platform with built-in procedures for assessing and mitigating label error. We collected 42,403 labels, including 7,204 labels arising f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.18483","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/2412.18483/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":"2026-07-05T09:53:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VZNnWE85ghxo8FvlPk8IE8rjOD+mcntvIxvfJxhJmHE2vUio/Stboz/bfTluF/DKqrPGRP+rKMN2+6RsDkIPAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T03:12:13.149831Z"},"content_sha256":"36f0cd3de22038a032961eced07177de6de9a6e2a35db0a98d831658f2e1f045","schema_version":"1.0","event_id":"sha256:36f0cd3de22038a032961eced07177de6de9a6e2a35db0a98d831658f2e1f045"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QCSAXVBWTI3ZERMITGRQOALXPM/bundle.json","state_url":"https://pith.science/pith/QCSAXVBWTI3ZERMITGRQOALXPM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QCSAXVBWTI3ZERMITGRQOALXPM/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":"2026-08-13T03:12:13Z","links":{"resolver":"https://pith.science/pith/QCSAXVBWTI3ZERMITGRQOALXPM","bundle":"https://pith.science/pith/QCSAXVBWTI3ZERMITGRQOALXPM/bundle.json","state":"https://pith.science/pith/QCSAXVBWTI3ZERMITGRQOALXPM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QCSAXVBWTI3ZERMITGRQOALXPM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:QCSAXVBWTI3ZERMITGRQOALXPM","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":"5fababe5193f9ac15ebcdf7f1755859b12a625285bfa8a9e7141343eef088f8e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-12-24T15:14:58Z","title_canon_sha256":"835ed4836a38581b24c6900721e269c337ba5c488241d0a9948d3eeec58da53b"},"schema_version":"1.0","source":{"id":"2412.18483","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.18483","created_at":"2026-07-05T09:53:56Z"},{"alias_kind":"arxiv_version","alias_value":"2412.18483v1","created_at":"2026-07-05T09:53:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.18483","created_at":"2026-07-05T09:53:56Z"},{"alias_kind":"pith_short_12","alias_value":"QCSAXVBWTI3Z","created_at":"2026-07-05T09:53:56Z"},{"alias_kind":"pith_short_16","alias_value":"QCSAXVBWTI3ZERMI","created_at":"2026-07-05T09:53:56Z"},{"alias_kind":"pith_short_8","alias_value":"QCSAXVBW","created_at":"2026-07-05T09:53:56Z"}],"graph_snapshots":[{"event_id":"sha256:36f0cd3de22038a032961eced07177de6de9a6e2a35db0a98d831658f2e1f045","target":"graph","created_at":"2026-07-05T09:53:56Z","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/2412.18483/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"African agriculture is undergoing rapid transformation. Annual maps of crop fields are key to understanding the nature of this transformation, but such maps are currently lacking and must be developed using advanced machine learning models trained on high resolution remote sensing imagery. To enable the development of such models, we delineated field boundaries in 33,746 Planet images captured between 2017 and 2023 across the continent using a custom labeling platform with built-in procedures for assessing and mitigating label error. We collected 42,403 labels, including 7,204 labels arising f","authors_text":"A. Miroyo, A. Wussah, B.V. Yeboah, C. Juma, D.A. Nyarko, E. Amponsem, E. Heltzel, E.S. Akakpo, F.K. Addai, F. Mwawaza, F. Wambua, F. Yeboah, G.H. Xeflide, J. Mucha, J. Mugami, J. Muhando, K.D. Donkoh, K.N. Ohemeng, L.D. Estes, M. Asipunu, M. Gathigi, M.K. Allotey, N. Ha, P. Amkoya, P. Kova\\v{c}i\\v{c}, P. Oduor, R. Mdawida, S.I.D. Segbefia, S. Ye, T. Tumbula","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-12-24T15:14:58Z","title":"A region-wide, multi-year set of crop field boundary labels for Africa"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.18483","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":"sha256:346befb648492f783a812eb6b53ca65203ca0e9ac6bf7a54fa3ebae369c104d9","target":"record","created_at":"2026-07-05T09:53:56Z","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":"5fababe5193f9ac15ebcdf7f1755859b12a625285bfa8a9e7141343eef088f8e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-12-24T15:14:58Z","title_canon_sha256":"835ed4836a38581b24c6900721e269c337ba5c488241d0a9948d3eeec58da53b"},"schema_version":"1.0","source":{"id":"2412.18483","kind":"arxiv","version":1}},"canonical_sha256":"80a40bd4369a3792458899a30701777b2a39d6703c85997087fb034e569aa153","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"80a40bd4369a3792458899a30701777b2a39d6703c85997087fb034e569aa153","first_computed_at":"2026-07-05T09:53:56.498726Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:53:56.498726Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LIONI8kkXRKpK//rUhJTJ+7XiGpy4u41lJCvABqYKrLgHnl04wWrQMbeSEP5kdNWKQ+MNANPgIa3FhHp5qzPBg==","signature_status":"signed_v1","signed_at":"2026-07-05T09:53:56.499207Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.18483","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:346befb648492f783a812eb6b53ca65203ca0e9ac6bf7a54fa3ebae369c104d9","sha256:36f0cd3de22038a032961eced07177de6de9a6e2a35db0a98d831658f2e1f045"],"state_sha256":"912c59af33fe5d979559b373629e6421c6c02c77d8fd7cd6bc131512ec2723ad"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AZAAsszK8COmtwdYZTCKH3IP/TMzdZaCGf/Dw0qopW7X6KJsYbJIK9IoI946g1jOGAyEQ/R9bjIlc7QheQzuDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T03:12:13.157650Z","bundle_sha256":"ee57204e84623bc350ad47279d7666bf0c70fa259ae5dedacdc6b12293262c09"}}