{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:JSMWGSI2NVDYCNJ2UKE5PUHUTU","short_pith_number":"pith:JSMWGSI2","canonical_record":{"source":{"id":"1606.03642","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2016-06-11T23:02:58Z","cross_cats_sorted":[],"title_canon_sha256":"afada4396ebcd694c4c4f64592aaefda91bb6c6e9321c7a1e21789cc1731f2c7","abstract_canon_sha256":"f5c97e274ca01e6df8d4835b0bf92afa07ad3620f12d2bddf3081ccf6e915dd4"},"schema_version":"1.0"},"canonical_sha256":"4c9963491a6d4781353aa289d7d0f49d23514dbc3fa8288a7da2239997fa9984","source":{"kind":"arxiv","id":"1606.03642","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.03642","created_at":"2026-05-18T00:05:24Z"},{"alias_kind":"arxiv_version","alias_value":"1606.03642v4","created_at":"2026-05-18T00:05:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.03642","created_at":"2026-05-18T00:05:24Z"},{"alias_kind":"pith_short_12","alias_value":"JSMWGSI2NVDY","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_16","alias_value":"JSMWGSI2NVDYCNJ2","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_8","alias_value":"JSMWGSI2","created_at":"2026-05-18T12:30:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:JSMWGSI2NVDYCNJ2UKE5PUHUTU","target":"record","payload":{"canonical_record":{"source":{"id":"1606.03642","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2016-06-11T23:02:58Z","cross_cats_sorted":[],"title_canon_sha256":"afada4396ebcd694c4c4f64592aaefda91bb6c6e9321c7a1e21789cc1731f2c7","abstract_canon_sha256":"f5c97e274ca01e6df8d4835b0bf92afa07ad3620f12d2bddf3081ccf6e915dd4"},"schema_version":"1.0"},"canonical_sha256":"4c9963491a6d4781353aa289d7d0f49d23514dbc3fa8288a7da2239997fa9984","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:05:24.303434Z","signature_b64":"FQjWgn0yQHLEgkCbF+p4bDzP/unucO1jUhk86250pFPlKLwPiXyfhQ/ccPRIyd7fMWxS3kiSJJcJ+rY+Ft1hCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4c9963491a6d4781353aa289d7d0f49d23514dbc3fa8288a7da2239997fa9984","last_reissued_at":"2026-05-18T00:05:24.302972Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:05:24.302972Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1606.03642","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:05:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4+hAz4ZuC8i0QR6wjxLkMH2Dj7twtGIS3CW0v+wQKX/lg15eisfqsN0xzUwpLTlHs+FY2WQsa+iaI7OrETnABQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T18:36:01.739351Z"},"content_sha256":"b92e5c22cd2211eca92cb172c7e853428db45c6e994d285a3ecf4ba6a82203d1","schema_version":"1.0","event_id":"sha256:b92e5c22cd2211eca92cb172c7e853428db45c6e994d285a3ecf4ba6a82203d1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:JSMWGSI2NVDYCNJ2UKE5PUHUTU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the Runtime of Universal Coating for Programmable Matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.ET","authors_text":"Alexandra Porter, Andr\\'ea W. Richa, Christian Scheideler, Joshua J. Daymude, Robert Gmyr, Thim Strothmann, Zahra Derakhshandeh","submitted_at":"2016-06-11T23:02:58Z","abstract_excerpt":"Imagine coating buildings and bridges with smart particles (also coined smart paint) that monitor structural integrity and sense and report on traffic and wind loads, leading to technology that could do such inspection jobs faster and cheaper and increase safety at the same time. In this paper, we study the problem of uniformly coating objects of arbitrary shape in the context of self-organizing programmable matter, i.e., programmable matter which consists of simple computational elements called particles that can establish and release bonds and can actively move in a self-organized way. Parti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.03642","kind":"arxiv","version":4},"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":"2026-05-18T00:05:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d069hwCY8l8MQpymPOQjVD/fDsu1D33JighBXEc6WfgKnMdpfX65ioJjC+mYXcnbTgZRDRW2n9jjO3Z9SdLzDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T18:36:01.740093Z"},"content_sha256":"c23f53970ec555f3622ce67952074601f8068b79405156a00491dff40c5bf0c2","schema_version":"1.0","event_id":"sha256:c23f53970ec555f3622ce67952074601f8068b79405156a00491dff40c5bf0c2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JSMWGSI2NVDYCNJ2UKE5PUHUTU/bundle.json","state_url":"https://pith.science/pith/JSMWGSI2NVDYCNJ2UKE5PUHUTU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JSMWGSI2NVDYCNJ2UKE5PUHUTU/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":"2026-05-28T18:36:01Z","links":{"resolver":"https://pith.science/pith/JSMWGSI2NVDYCNJ2UKE5PUHUTU","bundle":"https://pith.science/pith/JSMWGSI2NVDYCNJ2UKE5PUHUTU/bundle.json","state":"https://pith.science/pith/JSMWGSI2NVDYCNJ2UKE5PUHUTU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JSMWGSI2NVDYCNJ2UKE5PUHUTU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:JSMWGSI2NVDYCNJ2UKE5PUHUTU","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":"f5c97e274ca01e6df8d4835b0bf92afa07ad3620f12d2bddf3081ccf6e915dd4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2016-06-11T23:02:58Z","title_canon_sha256":"afada4396ebcd694c4c4f64592aaefda91bb6c6e9321c7a1e21789cc1731f2c7"},"schema_version":"1.0","source":{"id":"1606.03642","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.03642","created_at":"2026-05-18T00:05:24Z"},{"alias_kind":"arxiv_version","alias_value":"1606.03642v4","created_at":"2026-05-18T00:05:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.03642","created_at":"2026-05-18T00:05:24Z"},{"alias_kind":"pith_short_12","alias_value":"JSMWGSI2NVDY","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_16","alias_value":"JSMWGSI2NVDYCNJ2","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_8","alias_value":"JSMWGSI2","created_at":"2026-05-18T12:30:25Z"}],"graph_snapshots":[{"event_id":"sha256:c23f53970ec555f3622ce67952074601f8068b79405156a00491dff40c5bf0c2","target":"graph","created_at":"2026-05-18T00:05:24Z","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":"Imagine coating buildings and bridges with smart particles (also coined smart paint) that monitor structural integrity and sense and report on traffic and wind loads, leading to technology that could do such inspection jobs faster and cheaper and increase safety at the same time. In this paper, we study the problem of uniformly coating objects of arbitrary shape in the context of self-organizing programmable matter, i.e., programmable matter which consists of simple computational elements called particles that can establish and release bonds and can actively move in a self-organized way. Parti","authors_text":"Alexandra Porter, Andr\\'ea W. Richa, Christian Scheideler, Joshua J. Daymude, Robert Gmyr, Thim Strothmann, Zahra Derakhshandeh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2016-06-11T23:02:58Z","title":"On the Runtime of Universal Coating for Programmable Matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.03642","kind":"arxiv","version":4},"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:b92e5c22cd2211eca92cb172c7e853428db45c6e994d285a3ecf4ba6a82203d1","target":"record","created_at":"2026-05-18T00:05:24Z","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":"f5c97e274ca01e6df8d4835b0bf92afa07ad3620f12d2bddf3081ccf6e915dd4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2016-06-11T23:02:58Z","title_canon_sha256":"afada4396ebcd694c4c4f64592aaefda91bb6c6e9321c7a1e21789cc1731f2c7"},"schema_version":"1.0","source":{"id":"1606.03642","kind":"arxiv","version":4}},"canonical_sha256":"4c9963491a6d4781353aa289d7d0f49d23514dbc3fa8288a7da2239997fa9984","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4c9963491a6d4781353aa289d7d0f49d23514dbc3fa8288a7da2239997fa9984","first_computed_at":"2026-05-18T00:05:24.302972Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:05:24.302972Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FQjWgn0yQHLEgkCbF+p4bDzP/unucO1jUhk86250pFPlKLwPiXyfhQ/ccPRIyd7fMWxS3kiSJJcJ+rY+Ft1hCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:05:24.303434Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.03642","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b92e5c22cd2211eca92cb172c7e853428db45c6e994d285a3ecf4ba6a82203d1","sha256:c23f53970ec555f3622ce67952074601f8068b79405156a00491dff40c5bf0c2"],"state_sha256":"2e78cdabbbb4b098d97d7572a1e22bb1c8167e9c774390c5cd700f27f8034c94"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QZtbMqGanTQH4BsDKn/6XOjxeUadFaWjhjDb+FMGj5ABBwI18A+QsDV3O6mar8ZeIKVmrgy036G8qBwI9ZQCCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T18:36:01.743968Z","bundle_sha256":"6b1e8c825491d613a913769c39de2fcff0db9e0cdab825cc5f39d2fd91137861"}}