{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:7TPGPZFSSFWIKU7PQQFJS2R2AA","short_pith_number":"pith:7TPGPZFS","canonical_record":{"source":{"id":"1503.06323","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-03-21T17:09:40Z","cross_cats_sorted":[],"title_canon_sha256":"bef3e12abdf24f3603d5f521fb04e1fdcc8a212077f1ba5d1dcf2fb7901744c0","abstract_canon_sha256":"fabfd5365e99b197daca5abcc57389b52228b288ce8ae351e4c0042929794269"},"schema_version":"1.0"},"canonical_sha256":"fcde67e4b2916c8553ef840a996a3a0035c203cf0cb0c91647196cd4ec50e146","source":{"kind":"arxiv","id":"1503.06323","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.06323","created_at":"2026-05-18T02:20:38Z"},{"alias_kind":"arxiv_version","alias_value":"1503.06323v1","created_at":"2026-05-18T02:20:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.06323","created_at":"2026-05-18T02:20:38Z"},{"alias_kind":"pith_short_12","alias_value":"7TPGPZFSSFWI","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"7TPGPZFSSFWIKU7P","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"7TPGPZFS","created_at":"2026-05-18T12:29:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:7TPGPZFSSFWIKU7PQQFJS2R2AA","target":"record","payload":{"canonical_record":{"source":{"id":"1503.06323","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-03-21T17:09:40Z","cross_cats_sorted":[],"title_canon_sha256":"bef3e12abdf24f3603d5f521fb04e1fdcc8a212077f1ba5d1dcf2fb7901744c0","abstract_canon_sha256":"fabfd5365e99b197daca5abcc57389b52228b288ce8ae351e4c0042929794269"},"schema_version":"1.0"},"canonical_sha256":"fcde67e4b2916c8553ef840a996a3a0035c203cf0cb0c91647196cd4ec50e146","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:20:38.722860Z","signature_b64":"e36X4pd7T7oeVtMed4SFRLG3Nb87nSij+rkbqiOYfb/p/Z6Va3wdARxGmIiUa9CSnOslwwZKuVYDnHLR75HSBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fcde67e4b2916c8553ef840a996a3a0035c203cf0cb0c91647196cd4ec50e146","last_reissued_at":"2026-05-18T02:20:38.722176Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:20:38.722176Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1503.06323","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":"2026-05-18T02:20:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OyDtYXp0ELFLN2+dEyb7JGRbU8ruDa/pD01nJsPWhsScGj0a1aihXkQXJ3EQw7evq9KqPzQgYTs+K1wHEUeiAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T01:26:36.573838Z"},"content_sha256":"e6057a35f78fb4364290cdd02ac1ce9f11ccebc6e08fbaa70b38fbe0b356e4ea","schema_version":"1.0","event_id":"sha256:e6057a35f78fb4364290cdd02ac1ce9f11ccebc6e08fbaa70b38fbe0b356e4ea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:7TPGPZFSSFWIKU7PQQFJS2R2AA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Wavelet based approach for tissue fractal parameter measurement: Pre cancer detection","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Asima Pradhan, Asish Mitra, Nandan K. Das, Nirmalya Ghosh, Prasanta K. Panigrahi, Sabyasachi Mukhopadhyay, Sawon Pratiher, Soham Mandal","submitted_at":"2015-03-21T17:09:40Z","abstract_excerpt":"In this paper, we have carried out the detail studies of pre-cancer by wavelet coherency and multifractal based detrended fluctuation analysis (MFDFA) on differential interference contrast (DIC) images of stromal region among different grades of pre-cancer tissues. Discrete wavelet transform (DWT) through Daubechies basis has been performed for identifying fluctuations over polynomial trends for clear characterization and differentiation of tissues. Wavelet coherence plots are performed for identifying the level of correlation in time scale plane between normal and various grades of DIC sample"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.06323","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":""},"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":"2026-05-18T02:20:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1Oaw0RP3h1JpZKfLqTZpJZlRmOPM0r385VP5Bfnqzl2kkV8yPBSp8ycSglPkzIKoG5Rek/4Me/vb1ZeFPpoRAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T01:26:36.574190Z"},"content_sha256":"dd9719f48451e9cbed0d3c443d858d818445c248721ddd53c136f2285d7c1f50","schema_version":"1.0","event_id":"sha256:dd9719f48451e9cbed0d3c443d858d818445c248721ddd53c136f2285d7c1f50"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7TPGPZFSSFWIKU7PQQFJS2R2AA/bundle.json","state_url":"https://pith.science/pith/7TPGPZFSSFWIKU7PQQFJS2R2AA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7TPGPZFSSFWIKU7PQQFJS2R2AA/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":"2026-05-27T01:26:36Z","links":{"resolver":"https://pith.science/pith/7TPGPZFSSFWIKU7PQQFJS2R2AA","bundle":"https://pith.science/pith/7TPGPZFSSFWIKU7PQQFJS2R2AA/bundle.json","state":"https://pith.science/pith/7TPGPZFSSFWIKU7PQQFJS2R2AA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7TPGPZFSSFWIKU7PQQFJS2R2AA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:7TPGPZFSSFWIKU7PQQFJS2R2AA","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":"fabfd5365e99b197daca5abcc57389b52228b288ce8ae351e4c0042929794269","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-03-21T17:09:40Z","title_canon_sha256":"bef3e12abdf24f3603d5f521fb04e1fdcc8a212077f1ba5d1dcf2fb7901744c0"},"schema_version":"1.0","source":{"id":"1503.06323","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.06323","created_at":"2026-05-18T02:20:38Z"},{"alias_kind":"arxiv_version","alias_value":"1503.06323v1","created_at":"2026-05-18T02:20:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.06323","created_at":"2026-05-18T02:20:38Z"},{"alias_kind":"pith_short_12","alias_value":"7TPGPZFSSFWI","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"7TPGPZFSSFWIKU7P","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"7TPGPZFS","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:dd9719f48451e9cbed0d3c443d858d818445c248721ddd53c136f2285d7c1f50","target":"graph","created_at":"2026-05-18T02:20:38Z","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"},"paper":{"abstract_excerpt":"In this paper, we have carried out the detail studies of pre-cancer by wavelet coherency and multifractal based detrended fluctuation analysis (MFDFA) on differential interference contrast (DIC) images of stromal region among different grades of pre-cancer tissues. Discrete wavelet transform (DWT) through Daubechies basis has been performed for identifying fluctuations over polynomial trends for clear characterization and differentiation of tissues. Wavelet coherence plots are performed for identifying the level of correlation in time scale plane between normal and various grades of DIC sample","authors_text":"Asima Pradhan, Asish Mitra, Nandan K. Das, Nirmalya Ghosh, Prasanta K. Panigrahi, Sabyasachi Mukhopadhyay, Sawon Pratiher, Soham Mandal","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-03-21T17:09:40Z","title":"Wavelet based approach for tissue fractal parameter measurement: Pre cancer detection"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.06323","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:e6057a35f78fb4364290cdd02ac1ce9f11ccebc6e08fbaa70b38fbe0b356e4ea","target":"record","created_at":"2026-05-18T02:20:38Z","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":"fabfd5365e99b197daca5abcc57389b52228b288ce8ae351e4c0042929794269","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-03-21T17:09:40Z","title_canon_sha256":"bef3e12abdf24f3603d5f521fb04e1fdcc8a212077f1ba5d1dcf2fb7901744c0"},"schema_version":"1.0","source":{"id":"1503.06323","kind":"arxiv","version":1}},"canonical_sha256":"fcde67e4b2916c8553ef840a996a3a0035c203cf0cb0c91647196cd4ec50e146","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fcde67e4b2916c8553ef840a996a3a0035c203cf0cb0c91647196cd4ec50e146","first_computed_at":"2026-05-18T02:20:38.722176Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:20:38.722176Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"e36X4pd7T7oeVtMed4SFRLG3Nb87nSij+rkbqiOYfb/p/Z6Va3wdARxGmIiUa9CSnOslwwZKuVYDnHLR75HSBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:20:38.722860Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.06323","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e6057a35f78fb4364290cdd02ac1ce9f11ccebc6e08fbaa70b38fbe0b356e4ea","sha256:dd9719f48451e9cbed0d3c443d858d818445c248721ddd53c136f2285d7c1f50"],"state_sha256":"0a27401ffdcfb609b649fda14bd2079e889fc85cc19454005d4492cf1a03c2e3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rDJNveqcRRtD17JHtb6fzjt1XdWHoldA2Rhd0d02wre+Y+5/y9PYvKcZGOTNxfswUlTPT9NtDYIXfF0xxwAlAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T01:26:36.576434Z","bundle_sha256":"4975d8131003981f1cea91c240c3490e0e8cabdb6ed58d890e55cd1575ceacac"}}