{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:V4A3W247ZMDZAZPXZGGKPMVNMB","short_pith_number":"pith:V4A3W247","canonical_record":{"source":{"id":"2508.10555","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2025-08-14T11:50:16Z","cross_cats_sorted":["cs.CE","cs.LG"],"title_canon_sha256":"1a66c483eb9d2e2ea8d64de7bd3dcc3d1b050a178f62c45353204198c37962a7","abstract_canon_sha256":"4955c1afa33dc27cc0904524d8a4e9d650bf17cb2636cb064fc075a37e314bb7"},"schema_version":"1.0"},"canonical_sha256":"af01bb6b9fcb079065f7c98ca7b2ad606d503d736521bd3f4078408558311db9","source":{"kind":"arxiv","id":"2508.10555","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.10555","created_at":"2026-06-05T01:14:28Z"},{"alias_kind":"arxiv_version","alias_value":"2508.10555v2","created_at":"2026-06-05T01:14:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.10555","created_at":"2026-06-05T01:14:28Z"},{"alias_kind":"pith_short_12","alias_value":"V4A3W247ZMDZ","created_at":"2026-06-05T01:14:28Z"},{"alias_kind":"pith_short_16","alias_value":"V4A3W247ZMDZAZPX","created_at":"2026-06-05T01:14:28Z"},{"alias_kind":"pith_short_8","alias_value":"V4A3W247","created_at":"2026-06-05T01:14:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:V4A3W247ZMDZAZPXZGGKPMVNMB","target":"record","payload":{"canonical_record":{"source":{"id":"2508.10555","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2025-08-14T11:50:16Z","cross_cats_sorted":["cs.CE","cs.LG"],"title_canon_sha256":"1a66c483eb9d2e2ea8d64de7bd3dcc3d1b050a178f62c45353204198c37962a7","abstract_canon_sha256":"4955c1afa33dc27cc0904524d8a4e9d650bf17cb2636cb064fc075a37e314bb7"},"schema_version":"1.0"},"canonical_sha256":"af01bb6b9fcb079065f7c98ca7b2ad606d503d736521bd3f4078408558311db9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-05T01:14:28.356283Z","signature_b64":"QtQXs/hPSlgFGK4UjNIP+BkaaxoyMWbPi+axlLXvMAqwjOS1drqEyTaxyG8lte7lQrCPcBzXvqEqoPfFDNENBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"af01bb6b9fcb079065f7c98ca7b2ad606d503d736521bd3f4078408558311db9","last_reissued_at":"2026-06-05T01:14:28.355547Z","signature_status":"signed_v1","first_computed_at":"2026-06-05T01:14:28.355547Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.10555","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-05T01:14:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m78c5yY89WiVQ1MRTo2HfEDcgjh8aM0B+0i10A6jOzXmrPszbunMz7eoBl55nu9Gc6iLw4d8OKZvrnQJyP6WAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:20:55.663739Z"},"content_sha256":"91bc984caa011d3d4b75a15f0bd271eb5bbad47345e38b38a4cb444138e71836","schema_version":"1.0","event_id":"sha256:91bc984caa011d3d4b75a15f0bd271eb5bbad47345e38b38a4cb444138e71836"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:V4A3W247ZMDZAZPXZGGKPMVNMB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Differentiable Framework for Full and Phaseless Data Inversion Using Neural Implicit Contrast-Source Representation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CE","cs.LG"],"primary_cat":"physics.comp-ph","authors_text":"Daoqi Liu, Fan Yang, Haoran Sun, Hongyu Zhou, Maokun Li, Shenheng Xu","submitted_at":"2025-08-14T11:50:16Z","abstract_excerpt":"In this study, we extend the contrast source inversion to a fully differentiable, unsupervised framework based on a neural implicit representation of the contrast source. Specifically, instead of a pixel-wise discrete representation, the contrast source is parameterized by a lightweight residual multilayer perceptron (ResMLP) as a continuous neural field conditioned on spatial coordinates and transmitter settings. This continuous parameterization provides a more flexible representation of the contrast source and improves reconstruction accuracy and robustness under noisy measurements. Building"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.10555","kind":"arxiv","version":2},"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/2508.10555/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":"2026-06-05T01:14:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FkY8ajqt5kdNhLwTEbuGdU/7XEIUkIQDrVEoKTz0gbB8SvVRZhOd5uAhY67KxLR3A57d4e+0EGjPjg/kNFsQCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:20:55.664258Z"},"content_sha256":"82fb2ef655f90de643a65ee96baa4715b154d61584e8600882dd6a22f33da8a7","schema_version":"1.0","event_id":"sha256:82fb2ef655f90de643a65ee96baa4715b154d61584e8600882dd6a22f33da8a7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V4A3W247ZMDZAZPXZGGKPMVNMB/bundle.json","state_url":"https://pith.science/pith/V4A3W247ZMDZAZPXZGGKPMVNMB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V4A3W247ZMDZAZPXZGGKPMVNMB/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":"2026-08-03T16:20:55Z","links":{"resolver":"https://pith.science/pith/V4A3W247ZMDZAZPXZGGKPMVNMB","bundle":"https://pith.science/pith/V4A3W247ZMDZAZPXZGGKPMVNMB/bundle.json","state":"https://pith.science/pith/V4A3W247ZMDZAZPXZGGKPMVNMB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V4A3W247ZMDZAZPXZGGKPMVNMB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:V4A3W247ZMDZAZPXZGGKPMVNMB","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":"4955c1afa33dc27cc0904524d8a4e9d650bf17cb2636cb064fc075a37e314bb7","cross_cats_sorted":["cs.CE","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2025-08-14T11:50:16Z","title_canon_sha256":"1a66c483eb9d2e2ea8d64de7bd3dcc3d1b050a178f62c45353204198c37962a7"},"schema_version":"1.0","source":{"id":"2508.10555","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.10555","created_at":"2026-06-05T01:14:28Z"},{"alias_kind":"arxiv_version","alias_value":"2508.10555v2","created_at":"2026-06-05T01:14:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.10555","created_at":"2026-06-05T01:14:28Z"},{"alias_kind":"pith_short_12","alias_value":"V4A3W247ZMDZ","created_at":"2026-06-05T01:14:28Z"},{"alias_kind":"pith_short_16","alias_value":"V4A3W247ZMDZAZPX","created_at":"2026-06-05T01:14:28Z"},{"alias_kind":"pith_short_8","alias_value":"V4A3W247","created_at":"2026-06-05T01:14:28Z"}],"graph_snapshots":[{"event_id":"sha256:82fb2ef655f90de643a65ee96baa4715b154d61584e8600882dd6a22f33da8a7","target":"graph","created_at":"2026-06-05T01:14:28Z","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/2508.10555/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this study, we extend the contrast source inversion to a fully differentiable, unsupervised framework based on a neural implicit representation of the contrast source. Specifically, instead of a pixel-wise discrete representation, the contrast source is parameterized by a lightweight residual multilayer perceptron (ResMLP) as a continuous neural field conditioned on spatial coordinates and transmitter settings. This continuous parameterization provides a more flexible representation of the contrast source and improves reconstruction accuracy and robustness under noisy measurements. Building","authors_text":"Daoqi Liu, Fan Yang, Haoran Sun, Hongyu Zhou, Maokun Li, Shenheng Xu","cross_cats":["cs.CE","cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2025-08-14T11:50:16Z","title":"A Differentiable Framework for Full and Phaseless Data Inversion Using Neural Implicit Contrast-Source Representation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.10555","kind":"arxiv","version":2},"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":"sha256:91bc984caa011d3d4b75a15f0bd271eb5bbad47345e38b38a4cb444138e71836","target":"record","created_at":"2026-06-05T01:14:28Z","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":"4955c1afa33dc27cc0904524d8a4e9d650bf17cb2636cb064fc075a37e314bb7","cross_cats_sorted":["cs.CE","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2025-08-14T11:50:16Z","title_canon_sha256":"1a66c483eb9d2e2ea8d64de7bd3dcc3d1b050a178f62c45353204198c37962a7"},"schema_version":"1.0","source":{"id":"2508.10555","kind":"arxiv","version":2}},"canonical_sha256":"af01bb6b9fcb079065f7c98ca7b2ad606d503d736521bd3f4078408558311db9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"af01bb6b9fcb079065f7c98ca7b2ad606d503d736521bd3f4078408558311db9","first_computed_at":"2026-06-05T01:14:28.355547Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-05T01:14:28.355547Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QtQXs/hPSlgFGK4UjNIP+BkaaxoyMWbPi+axlLXvMAqwjOS1drqEyTaxyG8lte7lQrCPcBzXvqEqoPfFDNENBQ==","signature_status":"signed_v1","signed_at":"2026-06-05T01:14:28.356283Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.10555","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:91bc984caa011d3d4b75a15f0bd271eb5bbad47345e38b38a4cb444138e71836","sha256:82fb2ef655f90de643a65ee96baa4715b154d61584e8600882dd6a22f33da8a7"],"state_sha256":"ffc15efb83f09007720c62fe0f8402ce3743a071e11ccde2d1f1c5d85228aa4f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D7cpbkMe9m1gDUH6MX5vTJMastLc5SDFX7j7BpBmBjMBkQPaMjSCuzJ0iuDr+bYEC2Tg1QC4diaim7za+n3RCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T16:20:55.667888Z","bundle_sha256":"277a47e85a99ab668796e4999935a8c76798e1325fb1c8241e9d12197d90c3ac"}}