{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:JDSIMVQ2VPYHOFXBSRMZNNPWV3","short_pith_number":"pith:JDSIMVQ2","canonical_record":{"source":{"id":"1801.03707","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"q-bio.CB","submitted_at":"2018-01-11T10:59:35Z","cross_cats_sorted":["q-bio.PE"],"title_canon_sha256":"a24f10eb88d825e1dd6d7dbbeaa176a2a5fc8a599c1fc4d85d2849785e23fe90","abstract_canon_sha256":"3f16f47686729946dd235f717cddc11c70e1b4cbc5f117617d2216f5cdcb466e"},"schema_version":"1.0"},"canonical_sha256":"48e486561aabf07716e1945996b5f6aefdb47c7e0e512fce390517e05d74a2ce","source":{"kind":"arxiv","id":"1801.03707","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.03707","created_at":"2026-05-18T00:26:13Z"},{"alias_kind":"arxiv_version","alias_value":"1801.03707v1","created_at":"2026-05-18T00:26:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.03707","created_at":"2026-05-18T00:26:13Z"},{"alias_kind":"pith_short_12","alias_value":"JDSIMVQ2VPYH","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"JDSIMVQ2VPYHOFXB","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"JDSIMVQ2","created_at":"2026-05-18T12:32:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:JDSIMVQ2VPYHOFXBSRMZNNPWV3","target":"record","payload":{"canonical_record":{"source":{"id":"1801.03707","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"q-bio.CB","submitted_at":"2018-01-11T10:59:35Z","cross_cats_sorted":["q-bio.PE"],"title_canon_sha256":"a24f10eb88d825e1dd6d7dbbeaa176a2a5fc8a599c1fc4d85d2849785e23fe90","abstract_canon_sha256":"3f16f47686729946dd235f717cddc11c70e1b4cbc5f117617d2216f5cdcb466e"},"schema_version":"1.0"},"canonical_sha256":"48e486561aabf07716e1945996b5f6aefdb47c7e0e512fce390517e05d74a2ce","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:26:13.637943Z","signature_b64":"SGPBEtlkcf/0la6dVmatl0JpuUClxRGXhGQriD5v3hLrd5Blwn6oaef0DF5yvNlCYC/KAiaemPY0kJ8/tO3uCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"48e486561aabf07716e1945996b5f6aefdb47c7e0e512fce390517e05d74a2ce","last_reissued_at":"2026-05-18T00:26:13.637431Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:26:13.637431Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.03707","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":"2026-05-18T00:26:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WTRafUDrV8AJhJc9Yml8oUMgHRkvKa2ojAqb54p50tv+dSegeTU61Cwew4yw2izJqMGOOXtlpoyN4oKS9wfDBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T11:01:46.213273Z"},"content_sha256":"4a956d23346606308329dd674bb92cc1b4f02991cc12e696a93d7b7d4d7aaeab","schema_version":"1.0","event_id":"sha256:4a956d23346606308329dd674bb92cc1b4f02991cc12e696a93d7b7d4d7aaeab"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:JDSIMVQ2VPYHOFXBSRMZNNPWV3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Critical-like Collective State Leads to Long-range Cell Communication in Dictyostelium discoideum Aggregation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["q-bio.PE"],"primary_cat":"q-bio.CB","authors_text":"Darvin Yi, Giovanna De Palo, Robert G. Endres","submitted_at":"2018-01-11T10:59:35Z","abstract_excerpt":"The transition from single-cell to multicellular behavior is important in early development but rarely studied. The starvation-induced aggregation of the social amoeba Dictyostelium discoideum into a multicellular slug is known to result from single-cell chemotaxis towards emitted pulses of cyclic adenosine monophosphate (cAMP). However, how exactly do transient short-range chemical gradients lead to coherent collective movement at a macroscopic scale? Here, we use a multiscale model verified by quantitative microscopy to describe wide-ranging behaviors from chemotaxis and excitability of indi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.03707","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":"2026-05-18T00:26:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"69GycomvZytUzmxIdwJjXhugJupDT8jZx6Q3gWtAFMqM5pjjzn0OkcONoyMr+WTdy3ahwJnaeJ6b94fYA4MQAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T11:01:46.213642Z"},"content_sha256":"dd1845e6e689d41efb0c8bbaad2900c40669672d70bae620b0350fc538122659","schema_version":"1.0","event_id":"sha256:dd1845e6e689d41efb0c8bbaad2900c40669672d70bae620b0350fc538122659"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JDSIMVQ2VPYHOFXBSRMZNNPWV3/bundle.json","state_url":"https://pith.science/pith/JDSIMVQ2VPYHOFXBSRMZNNPWV3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JDSIMVQ2VPYHOFXBSRMZNNPWV3/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":"2026-06-03T11:01:46Z","links":{"resolver":"https://pith.science/pith/JDSIMVQ2VPYHOFXBSRMZNNPWV3","bundle":"https://pith.science/pith/JDSIMVQ2VPYHOFXBSRMZNNPWV3/bundle.json","state":"https://pith.science/pith/JDSIMVQ2VPYHOFXBSRMZNNPWV3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JDSIMVQ2VPYHOFXBSRMZNNPWV3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:JDSIMVQ2VPYHOFXBSRMZNNPWV3","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":"3f16f47686729946dd235f717cddc11c70e1b4cbc5f117617d2216f5cdcb466e","cross_cats_sorted":["q-bio.PE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"q-bio.CB","submitted_at":"2018-01-11T10:59:35Z","title_canon_sha256":"a24f10eb88d825e1dd6d7dbbeaa176a2a5fc8a599c1fc4d85d2849785e23fe90"},"schema_version":"1.0","source":{"id":"1801.03707","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.03707","created_at":"2026-05-18T00:26:13Z"},{"alias_kind":"arxiv_version","alias_value":"1801.03707v1","created_at":"2026-05-18T00:26:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.03707","created_at":"2026-05-18T00:26:13Z"},{"alias_kind":"pith_short_12","alias_value":"JDSIMVQ2VPYH","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"JDSIMVQ2VPYHOFXB","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"JDSIMVQ2","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:dd1845e6e689d41efb0c8bbaad2900c40669672d70bae620b0350fc538122659","target":"graph","created_at":"2026-05-18T00:26:13Z","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":"The transition from single-cell to multicellular behavior is important in early development but rarely studied. The starvation-induced aggregation of the social amoeba Dictyostelium discoideum into a multicellular slug is known to result from single-cell chemotaxis towards emitted pulses of cyclic adenosine monophosphate (cAMP). However, how exactly do transient short-range chemical gradients lead to coherent collective movement at a macroscopic scale? Here, we use a multiscale model verified by quantitative microscopy to describe wide-ranging behaviors from chemotaxis and excitability of indi","authors_text":"Darvin Yi, Giovanna De Palo, Robert G. Endres","cross_cats":["q-bio.PE"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"q-bio.CB","submitted_at":"2018-01-11T10:59:35Z","title":"A Critical-like Collective State Leads to Long-range Cell Communication in Dictyostelium discoideum Aggregation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.03707","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":"sha256:4a956d23346606308329dd674bb92cc1b4f02991cc12e696a93d7b7d4d7aaeab","target":"record","created_at":"2026-05-18T00:26:13Z","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":"3f16f47686729946dd235f717cddc11c70e1b4cbc5f117617d2216f5cdcb466e","cross_cats_sorted":["q-bio.PE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"q-bio.CB","submitted_at":"2018-01-11T10:59:35Z","title_canon_sha256":"a24f10eb88d825e1dd6d7dbbeaa176a2a5fc8a599c1fc4d85d2849785e23fe90"},"schema_version":"1.0","source":{"id":"1801.03707","kind":"arxiv","version":1}},"canonical_sha256":"48e486561aabf07716e1945996b5f6aefdb47c7e0e512fce390517e05d74a2ce","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"48e486561aabf07716e1945996b5f6aefdb47c7e0e512fce390517e05d74a2ce","first_computed_at":"2026-05-18T00:26:13.637431Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:26:13.637431Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SGPBEtlkcf/0la6dVmatl0JpuUClxRGXhGQriD5v3hLrd5Blwn6oaef0DF5yvNlCYC/KAiaemPY0kJ8/tO3uCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:26:13.637943Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.03707","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4a956d23346606308329dd674bb92cc1b4f02991cc12e696a93d7b7d4d7aaeab","sha256:dd1845e6e689d41efb0c8bbaad2900c40669672d70bae620b0350fc538122659"],"state_sha256":"2690196e68a3487078f76a709c55fc706bb5300d0b87ca331074e6822e2aab24"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jejPCJ2rF3bPXeMhULxm3Hjhet+3rElpSGiOS/OK61AzQjqoSlah8Fv6LFB2ideEX9F+HYaE4aAO0B8yADLPAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T11:01:46.215622Z","bundle_sha256":"19b89cac459869710c1745798b317e6c8469a22db28acc3e071c92d8493ba3e0"}}