{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:TZXH5QNGYJGAMBDSNPFBSXLLEM","short_pith_number":"pith:TZXH5QNG","canonical_record":{"source":{"id":"1803.02114","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2018-03-06T11:18:08Z","cross_cats_sorted":[],"title_canon_sha256":"5ae9b0d0ac29d0db4aa9d45475f358642e84e913a8b1b951f66d99782cbfe8a6","abstract_canon_sha256":"d2cdb91b2330ed2e5427a3510a20d6b90b9c8e6bededb77ccee7fef3f5b87158"},"schema_version":"1.0"},"canonical_sha256":"9e6e7ec1a6c24c0604726bca195d6b2314c907a74cb73a5ae98a6bcf55b4cccc","source":{"kind":"arxiv","id":"1803.02114","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.02114","created_at":"2026-05-18T00:09:15Z"},{"alias_kind":"arxiv_version","alias_value":"1803.02114v2","created_at":"2026-05-18T00:09:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.02114","created_at":"2026-05-18T00:09:15Z"},{"alias_kind":"pith_short_12","alias_value":"TZXH5QNGYJGA","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"TZXH5QNGYJGAMBDS","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"TZXH5QNG","created_at":"2026-05-18T12:32:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:TZXH5QNGYJGAMBDSNPFBSXLLEM","target":"record","payload":{"canonical_record":{"source":{"id":"1803.02114","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2018-03-06T11:18:08Z","cross_cats_sorted":[],"title_canon_sha256":"5ae9b0d0ac29d0db4aa9d45475f358642e84e913a8b1b951f66d99782cbfe8a6","abstract_canon_sha256":"d2cdb91b2330ed2e5427a3510a20d6b90b9c8e6bededb77ccee7fef3f5b87158"},"schema_version":"1.0"},"canonical_sha256":"9e6e7ec1a6c24c0604726bca195d6b2314c907a74cb73a5ae98a6bcf55b4cccc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:09:15.828029Z","signature_b64":"xIfgVUU0Krdwxb02zqPVY8PyqbZDWxXeZIe/R/hMCZ1m+Su8CaDzRphIlN3O0npquOooH9ElToaa1y0Ckge7DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9e6e7ec1a6c24c0604726bca195d6b2314c907a74cb73a5ae98a6bcf55b4cccc","last_reissued_at":"2026-05-18T00:09:15.827398Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:09:15.827398Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.02114","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":"2026-05-18T00:09:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"53rZ9uf4cN5/7r9QGMQ756agGLCIA8lfTAGb9HP35pPXgeA9biOKumBeXVc+xLgDfwXLC9OJ/0PXcESmxGGqBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T04:24:42.313004Z"},"content_sha256":"205d1d1bfe8cabc4113991c691ef47d8c2e331318e25b3e925f3ba629b34dc2e","schema_version":"1.0","event_id":"sha256:205d1d1bfe8cabc4113991c691ef47d8c2e331318e25b3e925f3ba629b34dc2e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:TZXH5QNGYJGAMBDSNPFBSXLLEM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A continuous-time persistent random walk model for flocking","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.stat-mech","authors_text":"Christian Van den Broeck, Daniel Escaff, Katja Lindenberg, Raul Toral","submitted_at":"2018-03-06T11:18:08Z","abstract_excerpt":"Random walkers characterized by random positions and random velocities lead to normal diffusion. A random walk was originally proposed by Einstein to model Brownian motion and to demonstrate the existence of atoms and molecules. Such a walker represents an inanimate particle driven by environmental fluctuations. On the other hand, there are many examples of so-called \"persistent random walkers\", including self-propelled particles that are able to move with almost constant speed while randomly changing their direction of motion. Examples include living entities (ranging from flagellated unicell"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.02114","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":"2026-05-18T00:09:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cb47bhqQFAF+RTAzHsS/UbeY+s9IW4HyGt3ATJDaKuVoe1WNK6aiIPLgYQhu6T1GeQ49aer2ggSmpcgoMOSABQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T04:24:42.313635Z"},"content_sha256":"f0a3acfa2c3988c65d8598668e92fedbe7d4b87d0e63a73203a0723c1c727d16","schema_version":"1.0","event_id":"sha256:f0a3acfa2c3988c65d8598668e92fedbe7d4b87d0e63a73203a0723c1c727d16"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TZXH5QNGYJGAMBDSNPFBSXLLEM/bundle.json","state_url":"https://pith.science/pith/TZXH5QNGYJGAMBDSNPFBSXLLEM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TZXH5QNGYJGAMBDSNPFBSXLLEM/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":"2026-05-27T04:24:42Z","links":{"resolver":"https://pith.science/pith/TZXH5QNGYJGAMBDSNPFBSXLLEM","bundle":"https://pith.science/pith/TZXH5QNGYJGAMBDSNPFBSXLLEM/bundle.json","state":"https://pith.science/pith/TZXH5QNGYJGAMBDSNPFBSXLLEM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TZXH5QNGYJGAMBDSNPFBSXLLEM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:TZXH5QNGYJGAMBDSNPFBSXLLEM","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":"d2cdb91b2330ed2e5427a3510a20d6b90b9c8e6bededb77ccee7fef3f5b87158","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2018-03-06T11:18:08Z","title_canon_sha256":"5ae9b0d0ac29d0db4aa9d45475f358642e84e913a8b1b951f66d99782cbfe8a6"},"schema_version":"1.0","source":{"id":"1803.02114","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.02114","created_at":"2026-05-18T00:09:15Z"},{"alias_kind":"arxiv_version","alias_value":"1803.02114v2","created_at":"2026-05-18T00:09:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.02114","created_at":"2026-05-18T00:09:15Z"},{"alias_kind":"pith_short_12","alias_value":"TZXH5QNGYJGA","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"TZXH5QNGYJGAMBDS","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"TZXH5QNG","created_at":"2026-05-18T12:32:56Z"}],"graph_snapshots":[{"event_id":"sha256:f0a3acfa2c3988c65d8598668e92fedbe7d4b87d0e63a73203a0723c1c727d16","target":"graph","created_at":"2026-05-18T00:09:15Z","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":"Random walkers characterized by random positions and random velocities lead to normal diffusion. A random walk was originally proposed by Einstein to model Brownian motion and to demonstrate the existence of atoms and molecules. Such a walker represents an inanimate particle driven by environmental fluctuations. On the other hand, there are many examples of so-called \"persistent random walkers\", including self-propelled particles that are able to move with almost constant speed while randomly changing their direction of motion. Examples include living entities (ranging from flagellated unicell","authors_text":"Christian Van den Broeck, Daniel Escaff, Katja Lindenberg, Raul Toral","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2018-03-06T11:18:08Z","title":"A continuous-time persistent random walk model for flocking"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.02114","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":"sha256:205d1d1bfe8cabc4113991c691ef47d8c2e331318e25b3e925f3ba629b34dc2e","target":"record","created_at":"2026-05-18T00:09:15Z","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":"d2cdb91b2330ed2e5427a3510a20d6b90b9c8e6bededb77ccee7fef3f5b87158","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2018-03-06T11:18:08Z","title_canon_sha256":"5ae9b0d0ac29d0db4aa9d45475f358642e84e913a8b1b951f66d99782cbfe8a6"},"schema_version":"1.0","source":{"id":"1803.02114","kind":"arxiv","version":2}},"canonical_sha256":"9e6e7ec1a6c24c0604726bca195d6b2314c907a74cb73a5ae98a6bcf55b4cccc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9e6e7ec1a6c24c0604726bca195d6b2314c907a74cb73a5ae98a6bcf55b4cccc","first_computed_at":"2026-05-18T00:09:15.827398Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:09:15.827398Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xIfgVUU0Krdwxb02zqPVY8PyqbZDWxXeZIe/R/hMCZ1m+Su8CaDzRphIlN3O0npquOooH9ElToaa1y0Ckge7DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:09:15.828029Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.02114","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:205d1d1bfe8cabc4113991c691ef47d8c2e331318e25b3e925f3ba629b34dc2e","sha256:f0a3acfa2c3988c65d8598668e92fedbe7d4b87d0e63a73203a0723c1c727d16"],"state_sha256":"2861a52b4e082d2a46db1e77b39d83492090fe0a6b338975825435bc5ff2d908"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VEnsYvsZxDlBn+n8uFYl1XOUUUE/Nc3e4htPVOPIV1aUKXLGwxT0lNDqrAoVi2JPqqSZ1ExmuJh5rxmpmFdkCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T04:24:42.317177Z","bundle_sha256":"815fce11eb6cdcf51ce5e0e2d8c908df225669036ae81bb47d1d34fed791d5f0"}}