{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:NZZNDM2DPNJ7LXNYUP7D44JQHK","short_pith_number":"pith:NZZNDM2D","canonical_record":{"source":{"id":"2404.08399","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-04-12T11:08:26Z","cross_cats_sorted":[],"title_canon_sha256":"8984d86a36273ab10db7bee6d7b4ded76f303056329c44bd08ccb8590b4dcbb5","abstract_canon_sha256":"02ff293d1d9394a3141fb46d908cdcf29e278e117c184e68abb156d89370c96d"},"schema_version":"1.0"},"canonical_sha256":"6e72d1b3437b53f5ddb8a3fe3e71303a96702531fa47dfab0667526088967046","source":{"kind":"arxiv","id":"2404.08399","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.08399","created_at":"2026-07-05T08:07:21Z"},{"alias_kind":"arxiv_version","alias_value":"2404.08399v1","created_at":"2026-07-05T08:07:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.08399","created_at":"2026-07-05T08:07:21Z"},{"alias_kind":"pith_short_12","alias_value":"NZZNDM2DPNJ7","created_at":"2026-07-05T08:07:21Z"},{"alias_kind":"pith_short_16","alias_value":"NZZNDM2DPNJ7LXNY","created_at":"2026-07-05T08:07:21Z"},{"alias_kind":"pith_short_8","alias_value":"NZZNDM2D","created_at":"2026-07-05T08:07:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:NZZNDM2DPNJ7LXNYUP7D44JQHK","target":"record","payload":{"canonical_record":{"source":{"id":"2404.08399","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-04-12T11:08:26Z","cross_cats_sorted":[],"title_canon_sha256":"8984d86a36273ab10db7bee6d7b4ded76f303056329c44bd08ccb8590b4dcbb5","abstract_canon_sha256":"02ff293d1d9394a3141fb46d908cdcf29e278e117c184e68abb156d89370c96d"},"schema_version":"1.0"},"canonical_sha256":"6e72d1b3437b53f5ddb8a3fe3e71303a96702531fa47dfab0667526088967046","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:07:21.442802Z","signature_b64":"NBf3Up2nrncyvGPZ5kTeaiL2H8zCmblRtZh5zFuF9dOe4jeQctsNQA2/tlbAQacY0CfvsZflHPuIxanu90RnDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6e72d1b3437b53f5ddb8a3fe3e71303a96702531fa47dfab0667526088967046","last_reissued_at":"2026-07-05T08:07:21.442438Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:07:21.442438Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2404.08399","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":"2026-07-05T08:07:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t70TXgN1y8DB3x1XQDNG9a4wTyQZYEjGmkNfT7GuZv+6FrnckvtrdoV60TlZS/pLfQhUl7GWnu+k4k/cN3XnDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T20:50:54.385124Z"},"content_sha256":"e56f56cbbe9e4094774da223d5bf674dcee6f7813ae9caeace0a800571bb0443","schema_version":"1.0","event_id":"sha256:e56f56cbbe9e4094774da223d5bf674dcee6f7813ae9caeace0a800571bb0443"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:NZZNDM2DPNJ7LXNYUP7D44JQHK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mitigating Challenges of the Space Environment for Onboard Artificial Intelligence: Design Overview of the Imaging Payload on SpIRIT","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Airlie Chapman, Andrew Woods, Ben Rubinstein, Chris Bayliss, Clint Therakam, Jack McRobbie, James Bailey, Jonathan Morgan, Kris Ehinger, Michele Trenti, Miguel Ortiz del Castillo, Richard Sinnott, Robert Mearns, Simon Barraclough, Zaher Joukhadar","submitted_at":"2024-04-12T11:08:26Z","abstract_excerpt":"Artificial intelligence (AI) and autonomous edge computing in space are emerging areas of interest to augment capabilities of nanosatellites, where modern sensors generate orders of magnitude more data than can typically be transmitted to mission control. Here, we present the hardware and software design of an onboard AI subsystem hosted on SpIRIT. The system is optimised for on-board computer vision experiments based on visible light and long wave infrared cameras. This paper highlights the key design choices made to maximise the robustness of the system in harsh space conditions, and their m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.08399","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/2404.08399/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":"2026-07-05T08:07:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TL5ZhW6SU2KAa9IKDt5ed1mnkqdDvShmi5P6+oxN1HMx0UrxgUR6We2aSC8T/YN/RqjJR7y0gPHI7GkKP10JBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T20:50:54.385529Z"},"content_sha256":"c5ec644d1eca58bb8dccaab11e982c3ad8ac4a8520d1c5ad9d87acee955c71c4","schema_version":"1.0","event_id":"sha256:c5ec644d1eca58bb8dccaab11e982c3ad8ac4a8520d1c5ad9d87acee955c71c4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NZZNDM2DPNJ7LXNYUP7D44JQHK/bundle.json","state_url":"https://pith.science/pith/NZZNDM2DPNJ7LXNYUP7D44JQHK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NZZNDM2DPNJ7LXNYUP7D44JQHK/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":"2026-07-06T20:50:54Z","links":{"resolver":"https://pith.science/pith/NZZNDM2DPNJ7LXNYUP7D44JQHK","bundle":"https://pith.science/pith/NZZNDM2DPNJ7LXNYUP7D44JQHK/bundle.json","state":"https://pith.science/pith/NZZNDM2DPNJ7LXNYUP7D44JQHK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NZZNDM2DPNJ7LXNYUP7D44JQHK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:NZZNDM2DPNJ7LXNYUP7D44JQHK","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":"02ff293d1d9394a3141fb46d908cdcf29e278e117c184e68abb156d89370c96d","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-04-12T11:08:26Z","title_canon_sha256":"8984d86a36273ab10db7bee6d7b4ded76f303056329c44bd08ccb8590b4dcbb5"},"schema_version":"1.0","source":{"id":"2404.08399","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.08399","created_at":"2026-07-05T08:07:21Z"},{"alias_kind":"arxiv_version","alias_value":"2404.08399v1","created_at":"2026-07-05T08:07:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.08399","created_at":"2026-07-05T08:07:21Z"},{"alias_kind":"pith_short_12","alias_value":"NZZNDM2DPNJ7","created_at":"2026-07-05T08:07:21Z"},{"alias_kind":"pith_short_16","alias_value":"NZZNDM2DPNJ7LXNY","created_at":"2026-07-05T08:07:21Z"},{"alias_kind":"pith_short_8","alias_value":"NZZNDM2D","created_at":"2026-07-05T08:07:21Z"}],"graph_snapshots":[{"event_id":"sha256:c5ec644d1eca58bb8dccaab11e982c3ad8ac4a8520d1c5ad9d87acee955c71c4","target":"graph","created_at":"2026-07-05T08:07:21Z","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/2404.08399/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Artificial intelligence (AI) and autonomous edge computing in space are emerging areas of interest to augment capabilities of nanosatellites, where modern sensors generate orders of magnitude more data than can typically be transmitted to mission control. Here, we present the hardware and software design of an onboard AI subsystem hosted on SpIRIT. The system is optimised for on-board computer vision experiments based on visible light and long wave infrared cameras. This paper highlights the key design choices made to maximise the robustness of the system in harsh space conditions, and their m","authors_text":"Airlie Chapman, Andrew Woods, Ben Rubinstein, Chris Bayliss, Clint Therakam, Jack McRobbie, James Bailey, Jonathan Morgan, Kris Ehinger, Michele Trenti, Miguel Ortiz del Castillo, Richard Sinnott, Robert Mearns, Simon Barraclough, Zaher Joukhadar","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-04-12T11:08:26Z","title":"Mitigating Challenges of the Space Environment for Onboard Artificial Intelligence: Design Overview of the Imaging Payload on SpIRIT"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.08399","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:e56f56cbbe9e4094774da223d5bf674dcee6f7813ae9caeace0a800571bb0443","target":"record","created_at":"2026-07-05T08:07:21Z","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":"02ff293d1d9394a3141fb46d908cdcf29e278e117c184e68abb156d89370c96d","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-04-12T11:08:26Z","title_canon_sha256":"8984d86a36273ab10db7bee6d7b4ded76f303056329c44bd08ccb8590b4dcbb5"},"schema_version":"1.0","source":{"id":"2404.08399","kind":"arxiv","version":1}},"canonical_sha256":"6e72d1b3437b53f5ddb8a3fe3e71303a96702531fa47dfab0667526088967046","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6e72d1b3437b53f5ddb8a3fe3e71303a96702531fa47dfab0667526088967046","first_computed_at":"2026-07-05T08:07:21.442438Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:07:21.442438Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NBf3Up2nrncyvGPZ5kTeaiL2H8zCmblRtZh5zFuF9dOe4jeQctsNQA2/tlbAQacY0CfvsZflHPuIxanu90RnDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:07:21.442802Z","signed_message":"canonical_sha256_bytes"},"source_id":"2404.08399","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e56f56cbbe9e4094774da223d5bf674dcee6f7813ae9caeace0a800571bb0443","sha256:c5ec644d1eca58bb8dccaab11e982c3ad8ac4a8520d1c5ad9d87acee955c71c4"],"state_sha256":"b1b41a1711d2a721be8a5c3ab653ca23648c40726b79c007eb48d945ceb275e9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YBu97UbJlioBWsRFHuYq4IvBzsmszQCCm9fcrmkISFVlxG+hL5ZIXYVk3UcL0666/70Htr8vki3ZQK+NzxteBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T20:50:54.387624Z","bundle_sha256":"32e1ba483f52b23c854eee882821d7687490a023d4d2c427f2ef2aa38c986703"}}