{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:R3VD4SSGIFXHB42A37M5HCGBHM","short_pith_number":"pith:R3VD4SSG","canonical_record":{"source":{"id":"2403.01097","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.soft","submitted_at":"2024-03-02T05:21:26Z","cross_cats_sorted":[],"title_canon_sha256":"21459e36755f7171880f8bf30bd97db2c71f3bc2ad549bc33d0bf3822a950569","abstract_canon_sha256":"0d1b76ec90557c1c233e364c35fced20f92c78ffce94c111b9a8e5609d771d66"},"schema_version":"1.0"},"canonical_sha256":"8eea3e4a46416e70f340dfd9d388c13b143457f229cd0e7b007ed68202192179","source":{"kind":"arxiv","id":"2403.01097","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.01097","created_at":"2026-07-05T07:51:16Z"},{"alias_kind":"arxiv_version","alias_value":"2403.01097v1","created_at":"2026-07-05T07:51:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.01097","created_at":"2026-07-05T07:51:16Z"},{"alias_kind":"pith_short_12","alias_value":"R3VD4SSGIFXH","created_at":"2026-07-05T07:51:16Z"},{"alias_kind":"pith_short_16","alias_value":"R3VD4SSGIFXHB42A","created_at":"2026-07-05T07:51:16Z"},{"alias_kind":"pith_short_8","alias_value":"R3VD4SSG","created_at":"2026-07-05T07:51:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:R3VD4SSGIFXHB42A37M5HCGBHM","target":"record","payload":{"canonical_record":{"source":{"id":"2403.01097","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.soft","submitted_at":"2024-03-02T05:21:26Z","cross_cats_sorted":[],"title_canon_sha256":"21459e36755f7171880f8bf30bd97db2c71f3bc2ad549bc33d0bf3822a950569","abstract_canon_sha256":"0d1b76ec90557c1c233e364c35fced20f92c78ffce94c111b9a8e5609d771d66"},"schema_version":"1.0"},"canonical_sha256":"8eea3e4a46416e70f340dfd9d388c13b143457f229cd0e7b007ed68202192179","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:51:16.549048Z","signature_b64":"twSDyLxu4HLx8O8Ns6EJwYf3xERyNgNaaD9NuI0O9RH+REQ+PRR6AvAj2dAFskRp0I4UPCNSxmTGFpYVXCwLCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8eea3e4a46416e70f340dfd9d388c13b143457f229cd0e7b007ed68202192179","last_reissued_at":"2026-07-05T07:51:16.548635Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:51:16.548635Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2403.01097","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":"2026-07-05T07:51:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zDTU10FZ5QOcLyQtAwrGBDWYYMgnrWe36zcLee/NiFaMJWaNDt1CW8BSNc7H+4NT59xT9w0MZwPeIVTS6cx3Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T08:35:47.787311Z"},"content_sha256":"e29507083694b1d1e986d12a191a38237313f1054d94eb6a7b0e43b45e888fe6","schema_version":"1.0","event_id":"sha256:e29507083694b1d1e986d12a191a38237313f1054d94eb6a7b0e43b45e888fe6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:R3VD4SSGIFXHB42A37M5HCGBHM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mermaid Cereal: Interactions and Pattern Formation in a Macroscopic Magnetocapillary SALR System","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Alireza Hooshanginejad, Daniel M. Harris, Giuseppe Pucci, Jack-William Barotta, Robert Hunt, Victoria Spradlin","submitted_at":"2024-03-02T05:21:26Z","abstract_excerpt":"When particles are deposited at a fluid interface they tend to aggregate by capillary attraction to minimize the overall potential energy of the system. In this work, we embed floating millimetric disks with permanent magnets to introduce a competing repulsion effect and study their pattern formation in equilibrium. The pairwise energy landscape of two disks is described by a short-range attraction and long-range repulsion (SALR) interaction potential, previously documented in a number of microscopic systems. Such competing interactions enable a variety of pairwise equilibrium states, includin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.01097","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2403.01097/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T07:51:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m5AdzYucqweBm1F5T/NKco9BG+uxfE63lqm2ttBc1VBjpd2kyN31a+qhpwJiYbRGz5YapAdSPM5RaPMaLnI4DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T08:35:47.788264Z"},"content_sha256":"7e9b7c0f3bf920eecb5e2b73b56407fc9d9197feee2e07a650123ce6038df5bc","schema_version":"1.0","event_id":"sha256:7e9b7c0f3bf920eecb5e2b73b56407fc9d9197feee2e07a650123ce6038df5bc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R3VD4SSGIFXHB42A37M5HCGBHM/bundle.json","state_url":"https://pith.science/pith/R3VD4SSGIFXHB42A37M5HCGBHM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R3VD4SSGIFXHB42A37M5HCGBHM/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":"2026-08-18T08:35:47Z","links":{"resolver":"https://pith.science/pith/R3VD4SSGIFXHB42A37M5HCGBHM","bundle":"https://pith.science/pith/R3VD4SSGIFXHB42A37M5HCGBHM/bundle.json","state":"https://pith.science/pith/R3VD4SSGIFXHB42A37M5HCGBHM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R3VD4SSGIFXHB42A37M5HCGBHM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:R3VD4SSGIFXHB42A37M5HCGBHM","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":"0d1b76ec90557c1c233e364c35fced20f92c78ffce94c111b9a8e5609d771d66","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.soft","submitted_at":"2024-03-02T05:21:26Z","title_canon_sha256":"21459e36755f7171880f8bf30bd97db2c71f3bc2ad549bc33d0bf3822a950569"},"schema_version":"1.0","source":{"id":"2403.01097","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.01097","created_at":"2026-07-05T07:51:16Z"},{"alias_kind":"arxiv_version","alias_value":"2403.01097v1","created_at":"2026-07-05T07:51:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.01097","created_at":"2026-07-05T07:51:16Z"},{"alias_kind":"pith_short_12","alias_value":"R3VD4SSGIFXH","created_at":"2026-07-05T07:51:16Z"},{"alias_kind":"pith_short_16","alias_value":"R3VD4SSGIFXHB42A","created_at":"2026-07-05T07:51:16Z"},{"alias_kind":"pith_short_8","alias_value":"R3VD4SSG","created_at":"2026-07-05T07:51:16Z"}],"graph_snapshots":[{"event_id":"sha256:7e9b7c0f3bf920eecb5e2b73b56407fc9d9197feee2e07a650123ce6038df5bc","target":"graph","created_at":"2026-07-05T07:51:16Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2403.01097/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"When particles are deposited at a fluid interface they tend to aggregate by capillary attraction to minimize the overall potential energy of the system. In this work, we embed floating millimetric disks with permanent magnets to introduce a competing repulsion effect and study their pattern formation in equilibrium. The pairwise energy landscape of two disks is described by a short-range attraction and long-range repulsion (SALR) interaction potential, previously documented in a number of microscopic systems. Such competing interactions enable a variety of pairwise equilibrium states, includin","authors_text":"Alireza Hooshanginejad, Daniel M. Harris, Giuseppe Pucci, Jack-William Barotta, Robert Hunt, Victoria Spradlin","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.soft","submitted_at":"2024-03-02T05:21:26Z","title":"Mermaid Cereal: Interactions and Pattern Formation in a Macroscopic Magnetocapillary SALR System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.01097","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:e29507083694b1d1e986d12a191a38237313f1054d94eb6a7b0e43b45e888fe6","target":"record","created_at":"2026-07-05T07:51:16Z","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":"0d1b76ec90557c1c233e364c35fced20f92c78ffce94c111b9a8e5609d771d66","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.soft","submitted_at":"2024-03-02T05:21:26Z","title_canon_sha256":"21459e36755f7171880f8bf30bd97db2c71f3bc2ad549bc33d0bf3822a950569"},"schema_version":"1.0","source":{"id":"2403.01097","kind":"arxiv","version":1}},"canonical_sha256":"8eea3e4a46416e70f340dfd9d388c13b143457f229cd0e7b007ed68202192179","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8eea3e4a46416e70f340dfd9d388c13b143457f229cd0e7b007ed68202192179","first_computed_at":"2026-07-05T07:51:16.548635Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:51:16.548635Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"twSDyLxu4HLx8O8Ns6EJwYf3xERyNgNaaD9NuI0O9RH+REQ+PRR6AvAj2dAFskRp0I4UPCNSxmTGFpYVXCwLCA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:51:16.549048Z","signed_message":"canonical_sha256_bytes"},"source_id":"2403.01097","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e29507083694b1d1e986d12a191a38237313f1054d94eb6a7b0e43b45e888fe6","sha256:7e9b7c0f3bf920eecb5e2b73b56407fc9d9197feee2e07a650123ce6038df5bc"],"state_sha256":"62aa53cfdf4bb21070391fefe7cbff70b356e44ad066beb7094466031368c446"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k/Y76GjtOXO1una519LQgH/X1r94qXr0NlPtSK1m5IvWlso2RX58mJ+p0zvm8YFDTPuIZ7E721Ybng8kgC+SDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T08:35:47.795588Z","bundle_sha256":"122e2d5c7481f2cee02da04867130b8ef98e4d988fc58f12b1f345cda4d46120"}}