{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:VS2E5ETF6IMZJZ4L2SJUYM5E57","short_pith_number":"pith:VS2E5ETF","canonical_record":{"source":{"id":"1412.7880","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.data-an","submitted_at":"2014-12-26T02:13:04Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"8958bf9d1020117388e447fba44a0db566a3c7c004f70d984eeedebc657ebd29","abstract_canon_sha256":"3432963736bfc15fb9f0ede997a3875af590ee07c7f0c588cfb2e63c61794505"},"schema_version":"1.0"},"canonical_sha256":"acb44e9265f21994e78bd4934c33a4efcdb09a1f69fa3d2b6616b6fdd395e01b","source":{"kind":"arxiv","id":"1412.7880","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.7880","created_at":"2026-05-18T02:30:24Z"},{"alias_kind":"arxiv_version","alias_value":"1412.7880v1","created_at":"2026-05-18T02:30:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.7880","created_at":"2026-05-18T02:30:24Z"},{"alias_kind":"pith_short_12","alias_value":"VS2E5ETF6IMZ","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"VS2E5ETF6IMZJZ4L","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"VS2E5ETF","created_at":"2026-05-18T12:28:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:VS2E5ETF6IMZJZ4L2SJUYM5E57","target":"record","payload":{"canonical_record":{"source":{"id":"1412.7880","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.data-an","submitted_at":"2014-12-26T02:13:04Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"8958bf9d1020117388e447fba44a0db566a3c7c004f70d984eeedebc657ebd29","abstract_canon_sha256":"3432963736bfc15fb9f0ede997a3875af590ee07c7f0c588cfb2e63c61794505"},"schema_version":"1.0"},"canonical_sha256":"acb44e9265f21994e78bd4934c33a4efcdb09a1f69fa3d2b6616b6fdd395e01b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:30:24.837405Z","signature_b64":"xSxqeeSZD2k2LxKhMbXA87jaAVeFzTm8yl48Jj1whid6sbsSqHbNowtYly6Dt2TTZcRyTNIILmjdbM7bDui1Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"acb44e9265f21994e78bd4934c33a4efcdb09a1f69fa3d2b6616b6fdd395e01b","last_reissued_at":"2026-05-18T02:30:24.836943Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:30:24.836943Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1412.7880","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":"2026-05-18T02:30:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J8AvJDTTbFhgvwwiTESGjBw1EvF7cVmjRadtvIoxvY7GWqt7WUv88Gl+s8fnfYgULFcwu4wFZ9T1Pj0a7cvoCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T00:08:33.059888Z"},"content_sha256":"83b2880ae85260439667dab9fe91a1566f314b8764d1dc4b92d36f7e65ace7be","schema_version":"1.0","event_id":"sha256:83b2880ae85260439667dab9fe91a1566f314b8764d1dc4b92d36f7e65ace7be"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:VS2E5ETF6IMZJZ4L2SJUYM5E57","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Enhancing fractal descriptors on images by combining boundary and interior of Minkowski dilation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV"],"primary_cat":"physics.data-an","authors_text":"Dalcimar Casanova, Jo\\~ao B. Florindo, Marcos W. S. Oliveira, Odemir Martinez Bruno","submitted_at":"2014-12-26T02:13:04Z","abstract_excerpt":"This work proposes to obtain novel fractal descriptors from gray-level texture images by combining information from interior and boundary measures of the Minkowski dilation applied to the texture surface. At first, the image is converted into a surface where the height of each point is the gray intensity of the respective pixel in that position in the image. Thus, this surface is morphologically dilated by spheres. The radius of such spheres is ranged within an interval and the volume and the external area of the dilated structure are computed for each radius. The final descriptors are given b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.7880","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":"2026-05-18T02:30:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3BJRaHP2gr6YjKwzyy2kO7rbV0RcNqwt0kMIEGClcj55ILN0sItyvfNgIh42ga0TdpmAgQHqxC0ftg/CKXWrAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T00:08:33.060234Z"},"content_sha256":"ff473ff4a27840cd233d945479074be6afe7d6aac0513262fa0801e8303d5a4c","schema_version":"1.0","event_id":"sha256:ff473ff4a27840cd233d945479074be6afe7d6aac0513262fa0801e8303d5a4c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VS2E5ETF6IMZJZ4L2SJUYM5E57/bundle.json","state_url":"https://pith.science/pith/VS2E5ETF6IMZJZ4L2SJUYM5E57/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VS2E5ETF6IMZJZ4L2SJUYM5E57/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":"2026-06-03T00:08:33Z","links":{"resolver":"https://pith.science/pith/VS2E5ETF6IMZJZ4L2SJUYM5E57","bundle":"https://pith.science/pith/VS2E5ETF6IMZJZ4L2SJUYM5E57/bundle.json","state":"https://pith.science/pith/VS2E5ETF6IMZJZ4L2SJUYM5E57/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VS2E5ETF6IMZJZ4L2SJUYM5E57/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:VS2E5ETF6IMZJZ4L2SJUYM5E57","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":"3432963736bfc15fb9f0ede997a3875af590ee07c7f0c588cfb2e63c61794505","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.data-an","submitted_at":"2014-12-26T02:13:04Z","title_canon_sha256":"8958bf9d1020117388e447fba44a0db566a3c7c004f70d984eeedebc657ebd29"},"schema_version":"1.0","source":{"id":"1412.7880","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.7880","created_at":"2026-05-18T02:30:24Z"},{"alias_kind":"arxiv_version","alias_value":"1412.7880v1","created_at":"2026-05-18T02:30:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.7880","created_at":"2026-05-18T02:30:24Z"},{"alias_kind":"pith_short_12","alias_value":"VS2E5ETF6IMZ","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"VS2E5ETF6IMZJZ4L","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"VS2E5ETF","created_at":"2026-05-18T12:28:54Z"}],"graph_snapshots":[{"event_id":"sha256:ff473ff4a27840cd233d945479074be6afe7d6aac0513262fa0801e8303d5a4c","target":"graph","created_at":"2026-05-18T02:30:24Z","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":"This work proposes to obtain novel fractal descriptors from gray-level texture images by combining information from interior and boundary measures of the Minkowski dilation applied to the texture surface. At first, the image is converted into a surface where the height of each point is the gray intensity of the respective pixel in that position in the image. Thus, this surface is morphologically dilated by spheres. The radius of such spheres is ranged within an interval and the volume and the external area of the dilated structure are computed for each radius. The final descriptors are given b","authors_text":"Dalcimar Casanova, Jo\\~ao B. Florindo, Marcos W. S. Oliveira, Odemir Martinez Bruno","cross_cats":["cs.CV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.data-an","submitted_at":"2014-12-26T02:13:04Z","title":"Enhancing fractal descriptors on images by combining boundary and interior of Minkowski dilation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.7880","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":"sha256:83b2880ae85260439667dab9fe91a1566f314b8764d1dc4b92d36f7e65ace7be","target":"record","created_at":"2026-05-18T02:30:24Z","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":"3432963736bfc15fb9f0ede997a3875af590ee07c7f0c588cfb2e63c61794505","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.data-an","submitted_at":"2014-12-26T02:13:04Z","title_canon_sha256":"8958bf9d1020117388e447fba44a0db566a3c7c004f70d984eeedebc657ebd29"},"schema_version":"1.0","source":{"id":"1412.7880","kind":"arxiv","version":1}},"canonical_sha256":"acb44e9265f21994e78bd4934c33a4efcdb09a1f69fa3d2b6616b6fdd395e01b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"acb44e9265f21994e78bd4934c33a4efcdb09a1f69fa3d2b6616b6fdd395e01b","first_computed_at":"2026-05-18T02:30:24.836943Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:30:24.836943Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xSxqeeSZD2k2LxKhMbXA87jaAVeFzTm8yl48Jj1whid6sbsSqHbNowtYly6Dt2TTZcRyTNIILmjdbM7bDui1Aw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:30:24.837405Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.7880","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:83b2880ae85260439667dab9fe91a1566f314b8764d1dc4b92d36f7e65ace7be","sha256:ff473ff4a27840cd233d945479074be6afe7d6aac0513262fa0801e8303d5a4c"],"state_sha256":"bcb3a892ad8d06a25aee01740172e5223a6b993a000ccb49f52d8fb3f9c69e28"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PiGS2yyLYLbZnuKCcqwuVpgmRYeLedbBUx7vtWWtymh0XQ4po0aeFnkLaHFCvgJ++ZuSiHfLmACCb9lxltxjDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T00:08:33.062194Z","bundle_sha256":"998e7e7f1800d2391b177c6cec00585d3717fba2b3a9aa2b26e869656ad268fd"}}