{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:LO3FZZEI57WOEY6CMBDG53TSC2","short_pith_number":"pith:LO3FZZEI","canonical_record":{"source":{"id":"1511.04687","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-11-15T11:36:30Z","cross_cats_sorted":["math.SP"],"title_canon_sha256":"5ddd1a74de2dee8a3e7a5bb4ac37d052f2da3e80cbe429b1436229406b9cd9d5","abstract_canon_sha256":"1bb52813d491c71d823e8b877a358589f58ceffb30f38b6f1e583795954c0675"},"schema_version":"1.0"},"canonical_sha256":"5bb65ce488efece263c260466eee7216a855ef945d81a8ef6147d30e2e425504","source":{"kind":"arxiv","id":"1511.04687","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.04687","created_at":"2026-05-18T01:08:12Z"},{"alias_kind":"arxiv_version","alias_value":"1511.04687v1","created_at":"2026-05-18T01:08:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.04687","created_at":"2026-05-18T01:08:12Z"},{"alias_kind":"pith_short_12","alias_value":"LO3FZZEI57WO","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"LO3FZZEI57WOEY6C","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"LO3FZZEI","created_at":"2026-05-18T12:29:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:LO3FZZEI57WOEY6CMBDG53TSC2","target":"record","payload":{"canonical_record":{"source":{"id":"1511.04687","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-11-15T11:36:30Z","cross_cats_sorted":["math.SP"],"title_canon_sha256":"5ddd1a74de2dee8a3e7a5bb4ac37d052f2da3e80cbe429b1436229406b9cd9d5","abstract_canon_sha256":"1bb52813d491c71d823e8b877a358589f58ceffb30f38b6f1e583795954c0675"},"schema_version":"1.0"},"canonical_sha256":"5bb65ce488efece263c260466eee7216a855ef945d81a8ef6147d30e2e425504","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:08:12.735714Z","signature_b64":"1CYw4HTSY0S4Z578Ei5PWbpDoTIUwWBlXg/CSqRtQB2Brzml+Oh3LROJ2SuoJHzwhYpf6n9E96kNl37EjEpvBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5bb65ce488efece263c260466eee7216a855ef945d81a8ef6147d30e2e425504","last_reissued_at":"2026-05-18T01:08:12.735242Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:08:12.735242Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.04687","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":"2026-05-18T01:08:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AvRkOqZkKGxWUkx/IAzHxiHwssWZv9ejT28jrTnTEiycCX+ltQMkKkfH3GJi9t023hazrIi7WIfqrJJutQb+BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T02:20:12.750027Z"},"content_sha256":"2b52ee8a14fcd22c629d0d36ea2a86f29cc81d2ac69ca3c3a85d497bf7498d91","schema_version":"1.0","event_id":"sha256:2b52ee8a14fcd22c629d0d36ea2a86f29cc81d2ac69ca3c3a85d497bf7498d91"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:LO3FZZEI57WOEY6CMBDG53TSC2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Separation Surfaces in the Spectral TV Domain for Texture Decomposition","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.SP"],"primary_cat":"cs.CV","authors_text":"Dikla Horesh, Guy Gilboa","submitted_at":"2015-11-15T11:36:30Z","abstract_excerpt":"In this paper we introduce a novel notion of separation surfaces for image decomposition. A surface is embedded in the spectral total-variation (TV) three dimensional domain and encodes a spatially-varying separation scale. The method allows good separation of textures with gradually varying pattern-size, pattern-contrast or illumination. The recently proposed total variation spectral framework is used to decompose the image into a continuum of textural scales. A desired texture, within a scale range, is found by fitting a surface to the local maximal responses in the spectral domain. A band a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.04687","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":"2026-05-18T01:08:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Gk72T7Ii3VwrUq1MRsCKwfjgp9yV410VLEz+LJfaQEw067JAH4klDXw+shIlqJIsecmxGUoJPLLV3v1MSi+VAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T02:20:12.750801Z"},"content_sha256":"6615d31ad805f940012465b1ba641dba5cdc3ce6353b4215ecd171669ae23a90","schema_version":"1.0","event_id":"sha256:6615d31ad805f940012465b1ba641dba5cdc3ce6353b4215ecd171669ae23a90"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LO3FZZEI57WOEY6CMBDG53TSC2/bundle.json","state_url":"https://pith.science/pith/LO3FZZEI57WOEY6CMBDG53TSC2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LO3FZZEI57WOEY6CMBDG53TSC2/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":"2026-06-12T02:20:12Z","links":{"resolver":"https://pith.science/pith/LO3FZZEI57WOEY6CMBDG53TSC2","bundle":"https://pith.science/pith/LO3FZZEI57WOEY6CMBDG53TSC2/bundle.json","state":"https://pith.science/pith/LO3FZZEI57WOEY6CMBDG53TSC2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LO3FZZEI57WOEY6CMBDG53TSC2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:LO3FZZEI57WOEY6CMBDG53TSC2","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":"1bb52813d491c71d823e8b877a358589f58ceffb30f38b6f1e583795954c0675","cross_cats_sorted":["math.SP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-11-15T11:36:30Z","title_canon_sha256":"5ddd1a74de2dee8a3e7a5bb4ac37d052f2da3e80cbe429b1436229406b9cd9d5"},"schema_version":"1.0","source":{"id":"1511.04687","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.04687","created_at":"2026-05-18T01:08:12Z"},{"alias_kind":"arxiv_version","alias_value":"1511.04687v1","created_at":"2026-05-18T01:08:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.04687","created_at":"2026-05-18T01:08:12Z"},{"alias_kind":"pith_short_12","alias_value":"LO3FZZEI57WO","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"LO3FZZEI57WOEY6C","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"LO3FZZEI","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:6615d31ad805f940012465b1ba641dba5cdc3ce6353b4215ecd171669ae23a90","target":"graph","created_at":"2026-05-18T01:08:12Z","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 introduce a novel notion of separation surfaces for image decomposition. A surface is embedded in the spectral total-variation (TV) three dimensional domain and encodes a spatially-varying separation scale. The method allows good separation of textures with gradually varying pattern-size, pattern-contrast or illumination. The recently proposed total variation spectral framework is used to decompose the image into a continuum of textural scales. A desired texture, within a scale range, is found by fitting a surface to the local maximal responses in the spectral domain. A band a","authors_text":"Dikla Horesh, Guy Gilboa","cross_cats":["math.SP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-11-15T11:36:30Z","title":"Separation Surfaces in the Spectral TV Domain for Texture Decomposition"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.04687","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":"sha256:2b52ee8a14fcd22c629d0d36ea2a86f29cc81d2ac69ca3c3a85d497bf7498d91","target":"record","created_at":"2026-05-18T01:08:12Z","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":"1bb52813d491c71d823e8b877a358589f58ceffb30f38b6f1e583795954c0675","cross_cats_sorted":["math.SP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-11-15T11:36:30Z","title_canon_sha256":"5ddd1a74de2dee8a3e7a5bb4ac37d052f2da3e80cbe429b1436229406b9cd9d5"},"schema_version":"1.0","source":{"id":"1511.04687","kind":"arxiv","version":1}},"canonical_sha256":"5bb65ce488efece263c260466eee7216a855ef945d81a8ef6147d30e2e425504","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5bb65ce488efece263c260466eee7216a855ef945d81a8ef6147d30e2e425504","first_computed_at":"2026-05-18T01:08:12.735242Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:08:12.735242Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1CYw4HTSY0S4Z578Ei5PWbpDoTIUwWBlXg/CSqRtQB2Brzml+Oh3LROJ2SuoJHzwhYpf6n9E96kNl37EjEpvBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:08:12.735714Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.04687","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2b52ee8a14fcd22c629d0d36ea2a86f29cc81d2ac69ca3c3a85d497bf7498d91","sha256:6615d31ad805f940012465b1ba641dba5cdc3ce6353b4215ecd171669ae23a90"],"state_sha256":"93bf92df11fcbef6297eb88ba8f595f43346856166e86390bff244a1d506bcf3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+Et2TC0CQ4wqhnVjZOskf1EwxpOPiGUyvNcDnb1Usog+N6wV7HVVn0S8aH7bIY7dsXJIhVXzujDjNhMlOZMnBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-12T02:20:12.755167Z","bundle_sha256":"b39502ff8aa70df028cbe6690f4b2cef3c540e3add66de34cb9766cb310dc690"}}