{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:BIF74M4F2W57TUCLOAXZUQTVNJ","short_pith_number":"pith:BIF74M4F","canonical_record":{"source":{"id":"1805.09110","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2018-05-22T10:27:24Z","cross_cats_sorted":["cs.CG","cs.CV","eess.IV"],"title_canon_sha256":"7ccdb76f48002fe8a9aaa0b6850484940b47b713966f5b6fab163ed94cc695cd","abstract_canon_sha256":"5c253e5eb769655661c8364da12242d800ae706b014e4b89180758732c865b32"},"schema_version":"1.0"},"canonical_sha256":"0a0bfe3385d5bbf9d04b702f9a42756a7621d2bb8f26bb67c9696c15bd3936ac","source":{"kind":"arxiv","id":"1805.09110","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.09110","created_at":"2026-05-17T23:40:24Z"},{"alias_kind":"arxiv_version","alias_value":"1805.09110v2","created_at":"2026-05-17T23:40:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.09110","created_at":"2026-05-17T23:40:24Z"},{"alias_kind":"pith_short_12","alias_value":"BIF74M4F2W57","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"BIF74M4F2W57TUCL","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"BIF74M4F","created_at":"2026-05-18T12:32:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:BIF74M4F2W57TUCLOAXZUQTVNJ","target":"record","payload":{"canonical_record":{"source":{"id":"1805.09110","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2018-05-22T10:27:24Z","cross_cats_sorted":["cs.CG","cs.CV","eess.IV"],"title_canon_sha256":"7ccdb76f48002fe8a9aaa0b6850484940b47b713966f5b6fab163ed94cc695cd","abstract_canon_sha256":"5c253e5eb769655661c8364da12242d800ae706b014e4b89180758732c865b32"},"schema_version":"1.0"},"canonical_sha256":"0a0bfe3385d5bbf9d04b702f9a42756a7621d2bb8f26bb67c9696c15bd3936ac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:24.131146Z","signature_b64":"JIuqm+4dbnucqytnPidfEkOOOlDKHEGXlBAW4MX6BG34Xchmb3er7I0ZQhPv4FHB5+6YRjzuDzdCGrp11OvFCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0a0bfe3385d5bbf9d04b702f9a42756a7621d2bb8f26bb67c9696c15bd3936ac","last_reissued_at":"2026-05-17T23:40:24.130262Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:24.130262Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.09110","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":"2026-05-17T23:40:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AcG+pQR/ouEvrgeJTy3AKFsvBFlEJsp8tyqnATF3Zn5SoABDDNLZRyjDwOLntOMKsA4VlwCY9/1BLdcrtdvyCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T00:34:01.282660Z"},"content_sha256":"be94deb824a75dd5769c0e9ec4b1b77c0c005b95d512f8a92a10af636371aaa8","schema_version":"1.0","event_id":"sha256:be94deb824a75dd5769c0e9ec4b1b77c0c005b95d512f8a92a10af636371aaa8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:BIF74M4F2W57TUCLOAXZUQTVNJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Topology ToolKit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CG","cs.CV","eess.IV"],"primary_cat":"cs.GR","authors_text":"Charles Gueunet, Guillaume Favelier, Joshua A. Levine, Julien Tierny, Michael Michaux","submitted_at":"2018-05-22T10:27:24Z","abstract_excerpt":"This system paper presents the Topology ToolKit (TTK), a software platform designed for topological data analysis in scientific visualization. TTK provides a unified, generic, efficient, and robust implementation of key algorithms for the topological analysis of scalar data, including: critical points, integral lines, persistence diagrams, persistence curves, merge trees, contour trees, Morse-Smale complexes, fiber surfaces, continuous scatterplots, Jacobi sets, Reeb spaces, and more. TTK is easily accessible to end users due to a tight integration with ParaView. It is also easily accessible t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.09110","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":""},"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":"2026-05-17T23:40:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WTmsxt65ysCs45676Hh7Met/OkxRz4OnrC5VHoQEQ0IReEGKmswsmBThi991LKLvKbZTFhm8vujIAUbUqwyEDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T00:34:01.283012Z"},"content_sha256":"7b738fd74c0c92bc22337fa8952af94c412d521876a20dafed89fa4cc54f8de1","schema_version":"1.0","event_id":"sha256:7b738fd74c0c92bc22337fa8952af94c412d521876a20dafed89fa4cc54f8de1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BIF74M4F2W57TUCLOAXZUQTVNJ/bundle.json","state_url":"https://pith.science/pith/BIF74M4F2W57TUCLOAXZUQTVNJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BIF74M4F2W57TUCLOAXZUQTVNJ/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":"2026-06-24T00:34:01Z","links":{"resolver":"https://pith.science/pith/BIF74M4F2W57TUCLOAXZUQTVNJ","bundle":"https://pith.science/pith/BIF74M4F2W57TUCLOAXZUQTVNJ/bundle.json","state":"https://pith.science/pith/BIF74M4F2W57TUCLOAXZUQTVNJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BIF74M4F2W57TUCLOAXZUQTVNJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:BIF74M4F2W57TUCLOAXZUQTVNJ","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":"5c253e5eb769655661c8364da12242d800ae706b014e4b89180758732c865b32","cross_cats_sorted":["cs.CG","cs.CV","eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2018-05-22T10:27:24Z","title_canon_sha256":"7ccdb76f48002fe8a9aaa0b6850484940b47b713966f5b6fab163ed94cc695cd"},"schema_version":"1.0","source":{"id":"1805.09110","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.09110","created_at":"2026-05-17T23:40:24Z"},{"alias_kind":"arxiv_version","alias_value":"1805.09110v2","created_at":"2026-05-17T23:40:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.09110","created_at":"2026-05-17T23:40:24Z"},{"alias_kind":"pith_short_12","alias_value":"BIF74M4F2W57","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"BIF74M4F2W57TUCL","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"BIF74M4F","created_at":"2026-05-18T12:32:16Z"}],"graph_snapshots":[{"event_id":"sha256:7b738fd74c0c92bc22337fa8952af94c412d521876a20dafed89fa4cc54f8de1","target":"graph","created_at":"2026-05-17T23:40:24Z","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 system paper presents the Topology ToolKit (TTK), a software platform designed for topological data analysis in scientific visualization. TTK provides a unified, generic, efficient, and robust implementation of key algorithms for the topological analysis of scalar data, including: critical points, integral lines, persistence diagrams, persistence curves, merge trees, contour trees, Morse-Smale complexes, fiber surfaces, continuous scatterplots, Jacobi sets, Reeb spaces, and more. TTK is easily accessible to end users due to a tight integration with ParaView. It is also easily accessible t","authors_text":"Charles Gueunet, Guillaume Favelier, Joshua A. Levine, Julien Tierny, Michael Michaux","cross_cats":["cs.CG","cs.CV","eess.IV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2018-05-22T10:27:24Z","title":"The Topology ToolKit"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.09110","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:be94deb824a75dd5769c0e9ec4b1b77c0c005b95d512f8a92a10af636371aaa8","target":"record","created_at":"2026-05-17T23:40:24Z","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":"5c253e5eb769655661c8364da12242d800ae706b014e4b89180758732c865b32","cross_cats_sorted":["cs.CG","cs.CV","eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2018-05-22T10:27:24Z","title_canon_sha256":"7ccdb76f48002fe8a9aaa0b6850484940b47b713966f5b6fab163ed94cc695cd"},"schema_version":"1.0","source":{"id":"1805.09110","kind":"arxiv","version":2}},"canonical_sha256":"0a0bfe3385d5bbf9d04b702f9a42756a7621d2bb8f26bb67c9696c15bd3936ac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0a0bfe3385d5bbf9d04b702f9a42756a7621d2bb8f26bb67c9696c15bd3936ac","first_computed_at":"2026-05-17T23:40:24.130262Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:24.130262Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JIuqm+4dbnucqytnPidfEkOOOlDKHEGXlBAW4MX6BG34Xchmb3er7I0ZQhPv4FHB5+6YRjzuDzdCGrp11OvFCA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:24.131146Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.09110","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:be94deb824a75dd5769c0e9ec4b1b77c0c005b95d512f8a92a10af636371aaa8","sha256:7b738fd74c0c92bc22337fa8952af94c412d521876a20dafed89fa4cc54f8de1"],"state_sha256":"90f5482667e1f5f7758a656f27d5750072ce234aeb77ec01b6a72dbe0896acf3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/hYymwCMzMBNcIfIPMayf2t/f4uqu1YmYJ7apKXiL9ACVjmBry6nK9O32SU1Kuard0GXzNGksw5JwKRmMFERAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T00:34:01.284992Z","bundle_sha256":"3521da1639f9b8e717abc73a6d6c582368872d3d4f644944adf5f85525a6a32f"}}