{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:2HZGOE3BUIDOY6JTQA6D43Y7NT","short_pith_number":"pith:2HZGOE3B","canonical_record":{"source":{"id":"2009.08337","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2020-09-16T13:24:27Z","cross_cats_sorted":["eess.IV"],"title_canon_sha256":"3e3e810f1cf7f04edc1983c9594906d3b6de4089aab5ee3b72aeda2939f6fd85","abstract_canon_sha256":"b2f785ebc7a46b1c1fad8d5935433143dd5a5e8c4b142cdbba25782a1aa6034c"},"schema_version":"1.0"},"canonical_sha256":"d1f2671361a206ec7933803c3e6f1f6cc1a5a5c06ee26072a76647a4643949cf","source":{"kind":"arxiv","id":"2009.08337","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.08337","created_at":"2026-07-05T01:51:21Z"},{"alias_kind":"arxiv_version","alias_value":"2009.08337v2","created_at":"2026-07-05T01:51:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.08337","created_at":"2026-07-05T01:51:21Z"},{"alias_kind":"pith_short_12","alias_value":"2HZGOE3BUIDO","created_at":"2026-07-05T01:51:21Z"},{"alias_kind":"pith_short_16","alias_value":"2HZGOE3BUIDOY6JT","created_at":"2026-07-05T01:51:21Z"},{"alias_kind":"pith_short_8","alias_value":"2HZGOE3B","created_at":"2026-07-05T01:51:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:2HZGOE3BUIDOY6JTQA6D43Y7NT","target":"record","payload":{"canonical_record":{"source":{"id":"2009.08337","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2020-09-16T13:24:27Z","cross_cats_sorted":["eess.IV"],"title_canon_sha256":"3e3e810f1cf7f04edc1983c9594906d3b6de4089aab5ee3b72aeda2939f6fd85","abstract_canon_sha256":"b2f785ebc7a46b1c1fad8d5935433143dd5a5e8c4b142cdbba25782a1aa6034c"},"schema_version":"1.0"},"canonical_sha256":"d1f2671361a206ec7933803c3e6f1f6cc1a5a5c06ee26072a76647a4643949cf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:51:21.657462Z","signature_b64":"02pg6W6qkasZkDY4eTfPNmnu5bijYJRSp6VIIxISwrANg5Eidszsphyw2FNKqHZMng7/1tV1xxEr0PhJ6WlpCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d1f2671361a206ec7933803c3e6f1f6cc1a5a5c06ee26072a76647a4643949cf","last_reissued_at":"2026-07-05T01:51:21.657086Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:51:21.657086Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2009.08337","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":"2026-07-05T01:51:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZJdIIHt3IE4GK/q6MgBAoVAnildsrQmJAjNKliCd/AfY77iTLYju8TBCY0drDasuGU+2H+eswG2bQU8pJK0aAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T02:32:20.031577Z"},"content_sha256":"c25126921a55365ac5e6bee1f0a43e4e5e39513b3a3970ab139ad0703ae27097","schema_version":"1.0","event_id":"sha256:c25126921a55365ac5e6bee1f0a43e4e5e39513b3a3970ab139ad0703ae27097"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:2HZGOE3BUIDOY6JTQA6D43Y7NT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Histopathology for Mohs Micrographic Surgery with Photoacoustic Remote Sensing Microscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.IV"],"primary_cat":"physics.med-ph","authors_text":"Benjamin R. Ecclestone, Deepak Dinakaran, John R. Mackey, Kevan Bell, Muba Taher, Parsin Haji Reza, Saad Abbasi","submitted_at":"2020-09-16T13:24:27Z","abstract_excerpt":"Mohs micrographic surgery (MMS) is a precise oncological technique where layers of tissue are resected and examined with intraoperative histopathology to minimize the removal of normal tissue while completely excising the cancer. To achieve intraoperative pathology, the tissue is frozen, sectioned and stained over a 20- to 60-minute period, then analyzed by the MMS surgeon. Surgery is continued one layer at a time until no cancerous cells remain, meaning MMS can take several hours to complete. Ideally, it would be desirable to circumvent or augment frozen sectioning methods and directly visual"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.08337","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/2009.08337/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":"2026-07-05T01:51:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6XBtC0EOHSCTQtVCTfuYINWeEe45ygK8nIjNI8PNuKxkgbck/Eq6w3B2ICu/LwREAPqiOUXj0f+gL7GNb9vbAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T02:32:20.032231Z"},"content_sha256":"c18d6efc902003583919a7fd4dab0c8d305d44011e4415595d01a432eb1d7fb9","schema_version":"1.0","event_id":"sha256:c18d6efc902003583919a7fd4dab0c8d305d44011e4415595d01a432eb1d7fb9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2HZGOE3BUIDOY6JTQA6D43Y7NT/bundle.json","state_url":"https://pith.science/pith/2HZGOE3BUIDOY6JTQA6D43Y7NT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2HZGOE3BUIDOY6JTQA6D43Y7NT/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":"2026-08-05T02:32:20Z","links":{"resolver":"https://pith.science/pith/2HZGOE3BUIDOY6JTQA6D43Y7NT","bundle":"https://pith.science/pith/2HZGOE3BUIDOY6JTQA6D43Y7NT/bundle.json","state":"https://pith.science/pith/2HZGOE3BUIDOY6JTQA6D43Y7NT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2HZGOE3BUIDOY6JTQA6D43Y7NT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:2HZGOE3BUIDOY6JTQA6D43Y7NT","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":"b2f785ebc7a46b1c1fad8d5935433143dd5a5e8c4b142cdbba25782a1aa6034c","cross_cats_sorted":["eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2020-09-16T13:24:27Z","title_canon_sha256":"3e3e810f1cf7f04edc1983c9594906d3b6de4089aab5ee3b72aeda2939f6fd85"},"schema_version":"1.0","source":{"id":"2009.08337","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.08337","created_at":"2026-07-05T01:51:21Z"},{"alias_kind":"arxiv_version","alias_value":"2009.08337v2","created_at":"2026-07-05T01:51:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.08337","created_at":"2026-07-05T01:51:21Z"},{"alias_kind":"pith_short_12","alias_value":"2HZGOE3BUIDO","created_at":"2026-07-05T01:51:21Z"},{"alias_kind":"pith_short_16","alias_value":"2HZGOE3BUIDOY6JT","created_at":"2026-07-05T01:51:21Z"},{"alias_kind":"pith_short_8","alias_value":"2HZGOE3B","created_at":"2026-07-05T01:51:21Z"}],"graph_snapshots":[{"event_id":"sha256:c18d6efc902003583919a7fd4dab0c8d305d44011e4415595d01a432eb1d7fb9","target":"graph","created_at":"2026-07-05T01:51:21Z","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/2009.08337/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Mohs micrographic surgery (MMS) is a precise oncological technique where layers of tissue are resected and examined with intraoperative histopathology to minimize the removal of normal tissue while completely excising the cancer. To achieve intraoperative pathology, the tissue is frozen, sectioned and stained over a 20- to 60-minute period, then analyzed by the MMS surgeon. Surgery is continued one layer at a time until no cancerous cells remain, meaning MMS can take several hours to complete. Ideally, it would be desirable to circumvent or augment frozen sectioning methods and directly visual","authors_text":"Benjamin R. Ecclestone, Deepak Dinakaran, John R. Mackey, Kevan Bell, Muba Taher, Parsin Haji Reza, Saad Abbasi","cross_cats":["eess.IV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2020-09-16T13:24:27Z","title":"Histopathology for Mohs Micrographic Surgery with Photoacoustic Remote Sensing Microscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.08337","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:c25126921a55365ac5e6bee1f0a43e4e5e39513b3a3970ab139ad0703ae27097","target":"record","created_at":"2026-07-05T01:51:21Z","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":"b2f785ebc7a46b1c1fad8d5935433143dd5a5e8c4b142cdbba25782a1aa6034c","cross_cats_sorted":["eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2020-09-16T13:24:27Z","title_canon_sha256":"3e3e810f1cf7f04edc1983c9594906d3b6de4089aab5ee3b72aeda2939f6fd85"},"schema_version":"1.0","source":{"id":"2009.08337","kind":"arxiv","version":2}},"canonical_sha256":"d1f2671361a206ec7933803c3e6f1f6cc1a5a5c06ee26072a76647a4643949cf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d1f2671361a206ec7933803c3e6f1f6cc1a5a5c06ee26072a76647a4643949cf","first_computed_at":"2026-07-05T01:51:21.657086Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:51:21.657086Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"02pg6W6qkasZkDY4eTfPNmnu5bijYJRSp6VIIxISwrANg5Eidszsphyw2FNKqHZMng7/1tV1xxEr0PhJ6WlpCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:51:21.657462Z","signed_message":"canonical_sha256_bytes"},"source_id":"2009.08337","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c25126921a55365ac5e6bee1f0a43e4e5e39513b3a3970ab139ad0703ae27097","sha256:c18d6efc902003583919a7fd4dab0c8d305d44011e4415595d01a432eb1d7fb9"],"state_sha256":"a27197d3932a2e00eace558de14899ccf2f9ea90cb98fc1efd8f76342d1a2a2a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z9HvU/lez84klmdEm3vrNZQY2AHDYZadJJ4emEPuz/PGiSH8xS662Qh216lpY1HVPfqWtgtP+cv4q0AVwe4UDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T02:32:20.041200Z","bundle_sha256":"aa06ba3b5ad18753f5c3d5b482270029ab697d0387017fc29697abcd3a932689"}}