{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:B32JKI3VMELTIGSEHSU2XQSBVG","short_pith_number":"pith:B32JKI3V","canonical_record":{"source":{"id":"1907.08097","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2019-07-18T14:49:06Z","cross_cats_sorted":["cond-mat.soft","q-bio.NC"],"title_canon_sha256":"36cd77c5d9283bdb7ee2fb60cf0fbda46c67a709e7ac87a3d44f45edfb0f47f2","abstract_canon_sha256":"b055c55f0697f5f46bc2afb0f71500af02195742c22f2ad359c7c6213f54cf34"},"schema_version":"1.0"},"canonical_sha256":"0ef49523756117341a443ca9abc241a98ae502d96ce985350026eccd750724df","source":{"kind":"arxiv","id":"1907.08097","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.08097","created_at":"2026-05-17T23:40:15Z"},{"alias_kind":"arxiv_version","alias_value":"1907.08097v1","created_at":"2026-05-17T23:40:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.08097","created_at":"2026-05-17T23:40:15Z"},{"alias_kind":"pith_short_12","alias_value":"B32JKI3VMELT","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"B32JKI3VMELTIGSE","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"B32JKI3V","created_at":"2026-05-18T12:33:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:B32JKI3VMELTIGSEHSU2XQSBVG","target":"record","payload":{"canonical_record":{"source":{"id":"1907.08097","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2019-07-18T14:49:06Z","cross_cats_sorted":["cond-mat.soft","q-bio.NC"],"title_canon_sha256":"36cd77c5d9283bdb7ee2fb60cf0fbda46c67a709e7ac87a3d44f45edfb0f47f2","abstract_canon_sha256":"b055c55f0697f5f46bc2afb0f71500af02195742c22f2ad359c7c6213f54cf34"},"schema_version":"1.0"},"canonical_sha256":"0ef49523756117341a443ca9abc241a98ae502d96ce985350026eccd750724df","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:15.115036Z","signature_b64":"iSlFe6YJPuLXrW85tqK68EQQpibSnKypjU8pNVxlZn/nXhlE4vCIcE0qIPITHB7a8pivVZphTPaDruvGilafAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0ef49523756117341a443ca9abc241a98ae502d96ce985350026eccd750724df","last_reissued_at":"2026-05-17T23:40:15.114517Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:15.114517Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.08097","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":"2026-05-17T23:40:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LhhcLOcol2RrOzTAUk1oqD1fNCivWb1Gk+x3p2mJhfHe3OWTaI/3r4lhcVW/zNQDdRQTyxR2/PgVo14oLxPlDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T23:13:39.898872Z"},"content_sha256":"3537547031921689dae9bea1a31041d9b40470faca9ef54f9b3144b9a7539ff7","schema_version":"1.0","event_id":"sha256:3537547031921689dae9bea1a31041d9b40470faca9ef54f9b3144b9a7539ff7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:B32JKI3VMELTIGSEHSU2XQSBVG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Intrinsically motivated collective motion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft","q-bio.NC"],"primary_cat":"physics.bio-ph","authors_text":"Henry J. Charlesworth, Matthew S. Turner","submitted_at":"2019-07-18T14:49:06Z","abstract_excerpt":"Collective motion is found in various animal systems, active suspensions and robotic or virtual agents. This is often understood using high level models that directly encode selected empirical features, such as co-alignment and cohesion. Can these features be shown to emerge from an underlying, low-level principle? We find that they emerge naturally under Future State Maximisation (FSM). Here agents perceive a visual representation of the world around them, such as might be recorded on a simple retina, and then move to maximise the number of different visual environments that they expect to be"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.08097","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":"2026-05-17T23:40:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yRnxPX9phLGAu8bj5dHEQ/rP1fRiRjmjaYQkJQMZGQczfkgZgt2pG70axlMt6OJTjIcyMxo6DWwqolQjAOmSBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T23:13:39.899597Z"},"content_sha256":"4f61904df261687cb56c4b2c53c03ac28f702b4f0705664176c5a8b0982ff714","schema_version":"1.0","event_id":"sha256:4f61904df261687cb56c4b2c53c03ac28f702b4f0705664176c5a8b0982ff714"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B32JKI3VMELTIGSEHSU2XQSBVG/bundle.json","state_url":"https://pith.science/pith/B32JKI3VMELTIGSEHSU2XQSBVG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B32JKI3VMELTIGSEHSU2XQSBVG/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":"2026-05-26T23:13:39Z","links":{"resolver":"https://pith.science/pith/B32JKI3VMELTIGSEHSU2XQSBVG","bundle":"https://pith.science/pith/B32JKI3VMELTIGSEHSU2XQSBVG/bundle.json","state":"https://pith.science/pith/B32JKI3VMELTIGSEHSU2XQSBVG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B32JKI3VMELTIGSEHSU2XQSBVG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:B32JKI3VMELTIGSEHSU2XQSBVG","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":"b055c55f0697f5f46bc2afb0f71500af02195742c22f2ad359c7c6213f54cf34","cross_cats_sorted":["cond-mat.soft","q-bio.NC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2019-07-18T14:49:06Z","title_canon_sha256":"36cd77c5d9283bdb7ee2fb60cf0fbda46c67a709e7ac87a3d44f45edfb0f47f2"},"schema_version":"1.0","source":{"id":"1907.08097","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.08097","created_at":"2026-05-17T23:40:15Z"},{"alias_kind":"arxiv_version","alias_value":"1907.08097v1","created_at":"2026-05-17T23:40:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.08097","created_at":"2026-05-17T23:40:15Z"},{"alias_kind":"pith_short_12","alias_value":"B32JKI3VMELT","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"B32JKI3VMELTIGSE","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"B32JKI3V","created_at":"2026-05-18T12:33:12Z"}],"graph_snapshots":[{"event_id":"sha256:4f61904df261687cb56c4b2c53c03ac28f702b4f0705664176c5a8b0982ff714","target":"graph","created_at":"2026-05-17T23:40:15Z","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":"Collective motion is found in various animal systems, active suspensions and robotic or virtual agents. This is often understood using high level models that directly encode selected empirical features, such as co-alignment and cohesion. Can these features be shown to emerge from an underlying, low-level principle? We find that they emerge naturally under Future State Maximisation (FSM). Here agents perceive a visual representation of the world around them, such as might be recorded on a simple retina, and then move to maximise the number of different visual environments that they expect to be","authors_text":"Henry J. Charlesworth, Matthew S. Turner","cross_cats":["cond-mat.soft","q-bio.NC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2019-07-18T14:49:06Z","title":"Intrinsically motivated collective motion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.08097","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":"sha256:3537547031921689dae9bea1a31041d9b40470faca9ef54f9b3144b9a7539ff7","target":"record","created_at":"2026-05-17T23:40:15Z","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":"b055c55f0697f5f46bc2afb0f71500af02195742c22f2ad359c7c6213f54cf34","cross_cats_sorted":["cond-mat.soft","q-bio.NC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2019-07-18T14:49:06Z","title_canon_sha256":"36cd77c5d9283bdb7ee2fb60cf0fbda46c67a709e7ac87a3d44f45edfb0f47f2"},"schema_version":"1.0","source":{"id":"1907.08097","kind":"arxiv","version":1}},"canonical_sha256":"0ef49523756117341a443ca9abc241a98ae502d96ce985350026eccd750724df","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0ef49523756117341a443ca9abc241a98ae502d96ce985350026eccd750724df","first_computed_at":"2026-05-17T23:40:15.114517Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:15.114517Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iSlFe6YJPuLXrW85tqK68EQQpibSnKypjU8pNVxlZn/nXhlE4vCIcE0qIPITHB7a8pivVZphTPaDruvGilafAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:15.115036Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.08097","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3537547031921689dae9bea1a31041d9b40470faca9ef54f9b3144b9a7539ff7","sha256:4f61904df261687cb56c4b2c53c03ac28f702b4f0705664176c5a8b0982ff714"],"state_sha256":"78e281bfbe33fa553e822485765801c34ec2347574c9de9a1cedda099879c1ec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4PIMTYotd0l4/lvJeQxD2x3oTVnvu9WAWqfNMW8u3vflBGt8PocnQia+7RMU4e5KxXdLMbdGAs8lOU8K95bGDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T23:13:39.903525Z","bundle_sha256":"409a0d7d6408daeae135e558ab290aea983be65349c78e1d69d0dbab73007abf"}}