{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:J6EOBUF3SEOIBMBMFA5A44QGKW","short_pith_number":"pith:J6EOBUF3","canonical_record":{"source":{"id":"2209.15036","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-09-29T18:22:22Z","cross_cats_sorted":["astro-ph.IM","cs.CV"],"title_canon_sha256":"a59a3f90c7660ea4591fb16deb346ab8c8086a8a2e857fb06c1a2bb7fb4928df","abstract_canon_sha256":"9be9222046e2c26ab5b7e74bdfbff3c8e67a55528e5d7a4df7520d1294de5f25"},"schema_version":"1.0"},"canonical_sha256":"4f88e0d0bb911c80b02c283a0e7206558abedd19bc2706a6b927909c56bc180f","source":{"kind":"arxiv","id":"2209.15036","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.15036","created_at":"2026-07-05T05:41:29Z"},{"alias_kind":"arxiv_version","alias_value":"2209.15036v1","created_at":"2026-07-05T05:41:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.15036","created_at":"2026-07-05T05:41:29Z"},{"alias_kind":"pith_short_12","alias_value":"J6EOBUF3SEOI","created_at":"2026-07-05T05:41:29Z"},{"alias_kind":"pith_short_16","alias_value":"J6EOBUF3SEOIBMBM","created_at":"2026-07-05T05:41:29Z"},{"alias_kind":"pith_short_8","alias_value":"J6EOBUF3","created_at":"2026-07-05T05:41:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:J6EOBUF3SEOIBMBMFA5A44QGKW","target":"record","payload":{"canonical_record":{"source":{"id":"2209.15036","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-09-29T18:22:22Z","cross_cats_sorted":["astro-ph.IM","cs.CV"],"title_canon_sha256":"a59a3f90c7660ea4591fb16deb346ab8c8086a8a2e857fb06c1a2bb7fb4928df","abstract_canon_sha256":"9be9222046e2c26ab5b7e74bdfbff3c8e67a55528e5d7a4df7520d1294de5f25"},"schema_version":"1.0"},"canonical_sha256":"4f88e0d0bb911c80b02c283a0e7206558abedd19bc2706a6b927909c56bc180f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:41:29.260551Z","signature_b64":"BmYeeRk5dSu9LLa56dG6hzM1wpkdWkCZDEnZCwdYBSdXGHj0ywRRRf7EmbbfyCV1SuBWtjDQekq5mgdIcO6hAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4f88e0d0bb911c80b02c283a0e7206558abedd19bc2706a6b927909c56bc180f","last_reissued_at":"2026-07-05T05:41:29.260084Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:41:29.260084Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2209.15036","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":"2026-07-05T05:41:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"elajasI4AQtoqTjK2WfYHBQzdDP1xKyDFiBrlGjUXuABhTCXHNGwciwwptsrDkbTe4qoIJDE7h1wJXS/Su1ODw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T01:06:49.918271Z"},"content_sha256":"75510caeb7a28e57b28de7f1c1b61a401cd4b1b074341234542a0e09225bb8bc","schema_version":"1.0","event_id":"sha256:75510caeb7a28e57b28de7f1c1b61a401cd4b1b074341234542a0e09225bb8bc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:J6EOBUF3SEOIBMBMFA5A44QGKW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Large-Scale Spatial Cross-Calibration of Hinode/SOT-SP and SDO/HMI","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","cs.CV"],"primary_cat":"astro-ph.SR","authors_text":"David F. Fouhey, Graham Barnes, J. Todd Hoeksema, K. D. Leka, Marc L. DeRosa, Peter W. Schuck, Richard E. L. Higgins, Spiro K. Antiochos, Tamas I. Gombosi, Yang Liu","submitted_at":"2022-09-29T18:22:22Z","abstract_excerpt":"We investigate the cross-calibration of the Hinode/SOT-SP and SDO/HMI instrument meta-data, specifically the correspondence of the scaling and pointing information. Accurate calibration of these datasets gives the correspondence needed by inter-instrument studies and learning-based magnetogram systems, and is required for physically-meaningful photospheric magnetic field vectors. We approach the problem by robustly fitting geometric models on correspondences between images from each instrument's pipeline. This technique is common in computer vision, but several critical details are required wh"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.15036","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/2209.15036/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":"2026-07-05T05:41:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x3wEHHnxDvc1Pik0+p0ef1wL/ilDxU3y97OvnXuIXmH0/uQHGD6xT/DgBfGVoNARKaFuKAFtBRKOOeTPBrZECA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T01:06:49.918914Z"},"content_sha256":"dabfee0b3b1359be887afc6031a35abe599118308b8897a8be36a008190b310d","schema_version":"1.0","event_id":"sha256:dabfee0b3b1359be887afc6031a35abe599118308b8897a8be36a008190b310d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J6EOBUF3SEOIBMBMFA5A44QGKW/bundle.json","state_url":"https://pith.science/pith/J6EOBUF3SEOIBMBMFA5A44QGKW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J6EOBUF3SEOIBMBMFA5A44QGKW/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":"2026-08-11T01:06:49Z","links":{"resolver":"https://pith.science/pith/J6EOBUF3SEOIBMBMFA5A44QGKW","bundle":"https://pith.science/pith/J6EOBUF3SEOIBMBMFA5A44QGKW/bundle.json","state":"https://pith.science/pith/J6EOBUF3SEOIBMBMFA5A44QGKW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J6EOBUF3SEOIBMBMFA5A44QGKW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:J6EOBUF3SEOIBMBMFA5A44QGKW","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":"9be9222046e2c26ab5b7e74bdfbff3c8e67a55528e5d7a4df7520d1294de5f25","cross_cats_sorted":["astro-ph.IM","cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-09-29T18:22:22Z","title_canon_sha256":"a59a3f90c7660ea4591fb16deb346ab8c8086a8a2e857fb06c1a2bb7fb4928df"},"schema_version":"1.0","source":{"id":"2209.15036","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.15036","created_at":"2026-07-05T05:41:29Z"},{"alias_kind":"arxiv_version","alias_value":"2209.15036v1","created_at":"2026-07-05T05:41:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.15036","created_at":"2026-07-05T05:41:29Z"},{"alias_kind":"pith_short_12","alias_value":"J6EOBUF3SEOI","created_at":"2026-07-05T05:41:29Z"},{"alias_kind":"pith_short_16","alias_value":"J6EOBUF3SEOIBMBM","created_at":"2026-07-05T05:41:29Z"},{"alias_kind":"pith_short_8","alias_value":"J6EOBUF3","created_at":"2026-07-05T05:41:29Z"}],"graph_snapshots":[{"event_id":"sha256:dabfee0b3b1359be887afc6031a35abe599118308b8897a8be36a008190b310d","target":"graph","created_at":"2026-07-05T05:41:29Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2209.15036/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the cross-calibration of the Hinode/SOT-SP and SDO/HMI instrument meta-data, specifically the correspondence of the scaling and pointing information. Accurate calibration of these datasets gives the correspondence needed by inter-instrument studies and learning-based magnetogram systems, and is required for physically-meaningful photospheric magnetic field vectors. We approach the problem by robustly fitting geometric models on correspondences between images from each instrument's pipeline. This technique is common in computer vision, but several critical details are required wh","authors_text":"David F. Fouhey, Graham Barnes, J. Todd Hoeksema, K. D. Leka, Marc L. DeRosa, Peter W. Schuck, Richard E. L. Higgins, Spiro K. Antiochos, Tamas I. Gombosi, Yang Liu","cross_cats":["astro-ph.IM","cs.CV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-09-29T18:22:22Z","title":"Large-Scale Spatial Cross-Calibration of Hinode/SOT-SP and SDO/HMI"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.15036","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":"sha256:75510caeb7a28e57b28de7f1c1b61a401cd4b1b074341234542a0e09225bb8bc","target":"record","created_at":"2026-07-05T05:41:29Z","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":"9be9222046e2c26ab5b7e74bdfbff3c8e67a55528e5d7a4df7520d1294de5f25","cross_cats_sorted":["astro-ph.IM","cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-09-29T18:22:22Z","title_canon_sha256":"a59a3f90c7660ea4591fb16deb346ab8c8086a8a2e857fb06c1a2bb7fb4928df"},"schema_version":"1.0","source":{"id":"2209.15036","kind":"arxiv","version":1}},"canonical_sha256":"4f88e0d0bb911c80b02c283a0e7206558abedd19bc2706a6b927909c56bc180f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4f88e0d0bb911c80b02c283a0e7206558abedd19bc2706a6b927909c56bc180f","first_computed_at":"2026-07-05T05:41:29.260084Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:41:29.260084Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BmYeeRk5dSu9LLa56dG6hzM1wpkdWkCZDEnZCwdYBSdXGHj0ywRRRf7EmbbfyCV1SuBWtjDQekq5mgdIcO6hAw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:41:29.260551Z","signed_message":"canonical_sha256_bytes"},"source_id":"2209.15036","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:75510caeb7a28e57b28de7f1c1b61a401cd4b1b074341234542a0e09225bb8bc","sha256:dabfee0b3b1359be887afc6031a35abe599118308b8897a8be36a008190b310d"],"state_sha256":"1ce191bb464a3e9d31ad463d2c56e2f8e2c2d46c8238aaaa5af4c716a0ba5706"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NvelrvpPURyBnCHT0rdSgKDSF+7qo/C77p0k2AQUsMgx2shnevUeJl0nJSz/WUjMK9KeqG2yzhVEA5gKgrKXDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T01:06:49.922812Z","bundle_sha256":"d19ba8b40493cff476e3713e7ca870dcb021c8e8e40adb842bc27695955e26f7"}}