{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:MXH44M7Y6VEQQOVQ2X5ATBQFVR","short_pith_number":"pith:MXH44M7Y","canonical_record":{"source":{"id":"1709.09155","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.CB","submitted_at":"2017-09-26T17:43:46Z","cross_cats_sorted":[],"title_canon_sha256":"c619585bc00b659b6d8381a1e3979da2e8bc05bc3099479c8f838fa0b629786d","abstract_canon_sha256":"a27309adedede130b05ff30dbeb7a8f2b484f5dd6f7a32181f727a720c205051"},"schema_version":"1.0"},"canonical_sha256":"65cfce33f8f549083ab0d5fa098605ac469b8613baec1b188045d55f48ec2ea4","source":{"kind":"arxiv","id":"1709.09155","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.09155","created_at":"2026-05-18T00:34:21Z"},{"alias_kind":"arxiv_version","alias_value":"1709.09155v1","created_at":"2026-05-18T00:34:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.09155","created_at":"2026-05-18T00:34:21Z"},{"alias_kind":"pith_short_12","alias_value":"MXH44M7Y6VEQ","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"MXH44M7Y6VEQQOVQ","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"MXH44M7Y","created_at":"2026-05-18T12:31:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:MXH44M7Y6VEQQOVQ2X5ATBQFVR","target":"record","payload":{"canonical_record":{"source":{"id":"1709.09155","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.CB","submitted_at":"2017-09-26T17:43:46Z","cross_cats_sorted":[],"title_canon_sha256":"c619585bc00b659b6d8381a1e3979da2e8bc05bc3099479c8f838fa0b629786d","abstract_canon_sha256":"a27309adedede130b05ff30dbeb7a8f2b484f5dd6f7a32181f727a720c205051"},"schema_version":"1.0"},"canonical_sha256":"65cfce33f8f549083ab0d5fa098605ac469b8613baec1b188045d55f48ec2ea4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:34:21.029775Z","signature_b64":"YX9Q86Mih2USOWMkhIbnUXDr53ix2VtxfMBS2XEqYzpgawDG8aCP/0tQ/lvcHiYXDBN38TNPB+gS9Vqm4aR3DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"65cfce33f8f549083ab0d5fa098605ac469b8613baec1b188045d55f48ec2ea4","last_reissued_at":"2026-05-18T00:34:21.029262Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:34:21.029262Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.09155","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":"2026-05-18T00:34:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CNNMfdA3mZw7Eoi+BgyyUHkeOxUTZ0plDyNiiQDSEDuZdOch+dnsbdEtnDva6g4aEU6ZzTXtCX/yJkcqnf/MBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T23:37:19.334900Z"},"content_sha256":"57c464a55ff13c969abaa56b797d3ba1a943415b69aa69cddd57688fefcd2e23","schema_version":"1.0","event_id":"sha256:57c464a55ff13c969abaa56b797d3ba1a943415b69aa69cddd57688fefcd2e23"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:MXH44M7Y6VEQQOVQ2X5ATBQFVR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"No cell left behind: automated physics-based tracking of {\\em every} cell in a dense and growing colony","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"q-bio.CB","authors_text":"Emile Ramez Shehada, Huy Pham, Shawna Stahlheber, Wayne B. Hayes","submitted_at":"2017-09-26T17:43:46Z","abstract_excerpt":"A human watching a video of closely-packed cells can generally identify every individual cell, regardless of density and noise, but most currently-available cell-tracking software cannot. This is because the human brain automatically builds a physical model of the scene as it progresses, allowing it to readily distinguish cells from noise and not be unduly confused by overlapping cells. Here we introduce software that uses physical rules to create a simulation of the activity in a cell video, synchronizing itself with the video as the activity progresses. Because our simulation includes every "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.09155","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":"2026-05-18T00:34:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h+n7TY/9ogrnDK1hKzkXPPF2ioqV6Z3xBneNQ1Y5Twe656X+YPjlTmARLXwNS8UeZZh3Sy7JTB1AD+v5VB+eCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T23:37:19.335600Z"},"content_sha256":"04857e09b60efb87226b917cf55341189d8fda124ab682c33ee7d61572d886ef","schema_version":"1.0","event_id":"sha256:04857e09b60efb87226b917cf55341189d8fda124ab682c33ee7d61572d886ef"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MXH44M7Y6VEQQOVQ2X5ATBQFVR/bundle.json","state_url":"https://pith.science/pith/MXH44M7Y6VEQQOVQ2X5ATBQFVR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MXH44M7Y6VEQQOVQ2X5ATBQFVR/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":"2026-05-28T23:37:19Z","links":{"resolver":"https://pith.science/pith/MXH44M7Y6VEQQOVQ2X5ATBQFVR","bundle":"https://pith.science/pith/MXH44M7Y6VEQQOVQ2X5ATBQFVR/bundle.json","state":"https://pith.science/pith/MXH44M7Y6VEQQOVQ2X5ATBQFVR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MXH44M7Y6VEQQOVQ2X5ATBQFVR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:MXH44M7Y6VEQQOVQ2X5ATBQFVR","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":"a27309adedede130b05ff30dbeb7a8f2b484f5dd6f7a32181f727a720c205051","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.CB","submitted_at":"2017-09-26T17:43:46Z","title_canon_sha256":"c619585bc00b659b6d8381a1e3979da2e8bc05bc3099479c8f838fa0b629786d"},"schema_version":"1.0","source":{"id":"1709.09155","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.09155","created_at":"2026-05-18T00:34:21Z"},{"alias_kind":"arxiv_version","alias_value":"1709.09155v1","created_at":"2026-05-18T00:34:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.09155","created_at":"2026-05-18T00:34:21Z"},{"alias_kind":"pith_short_12","alias_value":"MXH44M7Y6VEQ","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"MXH44M7Y6VEQQOVQ","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"MXH44M7Y","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:04857e09b60efb87226b917cf55341189d8fda124ab682c33ee7d61572d886ef","target":"graph","created_at":"2026-05-18T00:34:21Z","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":"A human watching a video of closely-packed cells can generally identify every individual cell, regardless of density and noise, but most currently-available cell-tracking software cannot. This is because the human brain automatically builds a physical model of the scene as it progresses, allowing it to readily distinguish cells from noise and not be unduly confused by overlapping cells. Here we introduce software that uses physical rules to create a simulation of the activity in a cell video, synchronizing itself with the video as the activity progresses. Because our simulation includes every ","authors_text":"Emile Ramez Shehada, Huy Pham, Shawna Stahlheber, Wayne B. Hayes","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.CB","submitted_at":"2017-09-26T17:43:46Z","title":"No cell left behind: automated physics-based tracking of {\\em every} cell in a dense and growing colony"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.09155","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":"sha256:57c464a55ff13c969abaa56b797d3ba1a943415b69aa69cddd57688fefcd2e23","target":"record","created_at":"2026-05-18T00:34:21Z","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":"a27309adedede130b05ff30dbeb7a8f2b484f5dd6f7a32181f727a720c205051","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.CB","submitted_at":"2017-09-26T17:43:46Z","title_canon_sha256":"c619585bc00b659b6d8381a1e3979da2e8bc05bc3099479c8f838fa0b629786d"},"schema_version":"1.0","source":{"id":"1709.09155","kind":"arxiv","version":1}},"canonical_sha256":"65cfce33f8f549083ab0d5fa098605ac469b8613baec1b188045d55f48ec2ea4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"65cfce33f8f549083ab0d5fa098605ac469b8613baec1b188045d55f48ec2ea4","first_computed_at":"2026-05-18T00:34:21.029262Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:34:21.029262Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YX9Q86Mih2USOWMkhIbnUXDr53ix2VtxfMBS2XEqYzpgawDG8aCP/0tQ/lvcHiYXDBN38TNPB+gS9Vqm4aR3DA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:34:21.029775Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.09155","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:57c464a55ff13c969abaa56b797d3ba1a943415b69aa69cddd57688fefcd2e23","sha256:04857e09b60efb87226b917cf55341189d8fda124ab682c33ee7d61572d886ef"],"state_sha256":"f3ae03c6989dfdb3b6d569667d4772fada5fd81d5e4c05e82515232bf8700830"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L/URMLIt9ZXYh16OzJn+yhACd5tn8q3NoUyotiL8V89x/HaYLTJyhiJis6IfeS5sTJSJIwd3gQDTYNnRiqDwAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T23:37:19.339266Z","bundle_sha256":"1ead09c3ffa56e5223bcf29a4fc9e0ecdadad750cfba550cda3ae93c7ff2d672"}}