{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:4HSFG7SQ5UI4O3TEX42NRG3BV7","short_pith_number":"pith:4HSFG7SQ","canonical_record":{"source":{"id":"2509.00966","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2025-08-31T19:14:52Z","cross_cats_sorted":[],"title_canon_sha256":"a928a47bc8b99bf4834e16ce49f2136d429ad0246382503efc75a53fead7067d","abstract_canon_sha256":"dad8e17a02c3cd4d7a692e204c068083d2124cee0a7fae4f812aa047482b5c66"},"schema_version":"1.0"},"canonical_sha256":"e1e4537e50ed11c76e64bf34d89b61afd415e68aa8e5735d5e69e45f36ddaa96","source":{"kind":"arxiv","id":"2509.00966","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.00966","created_at":"2026-07-05T12:02:25Z"},{"alias_kind":"arxiv_version","alias_value":"2509.00966v1","created_at":"2026-07-05T12:02:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.00966","created_at":"2026-07-05T12:02:25Z"},{"alias_kind":"pith_short_12","alias_value":"4HSFG7SQ5UI4","created_at":"2026-07-05T12:02:25Z"},{"alias_kind":"pith_short_16","alias_value":"4HSFG7SQ5UI4O3TE","created_at":"2026-07-05T12:02:25Z"},{"alias_kind":"pith_short_8","alias_value":"4HSFG7SQ","created_at":"2026-07-05T12:02:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:4HSFG7SQ5UI4O3TEX42NRG3BV7","target":"record","payload":{"canonical_record":{"source":{"id":"2509.00966","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2025-08-31T19:14:52Z","cross_cats_sorted":[],"title_canon_sha256":"a928a47bc8b99bf4834e16ce49f2136d429ad0246382503efc75a53fead7067d","abstract_canon_sha256":"dad8e17a02c3cd4d7a692e204c068083d2124cee0a7fae4f812aa047482b5c66"},"schema_version":"1.0"},"canonical_sha256":"e1e4537e50ed11c76e64bf34d89b61afd415e68aa8e5735d5e69e45f36ddaa96","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:02:25.851635Z","signature_b64":"hEDTstOP/lxfd85YIndGugfg7o76bOl90MzF2Znck0MqquO9K2oepUQ3EbaUSbZawK4wxSeBO3tlYAU2e4MPCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e1e4537e50ed11c76e64bf34d89b61afd415e68aa8e5735d5e69e45f36ddaa96","last_reissued_at":"2026-07-05T12:02:25.851146Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:02:25.851146Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2509.00966","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":"2026-07-05T12:02:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H7GyhwPFxF0wEPMWK7uCVklSz/HWfRp8K9bGHHC8kTqvj2y/gAg4GFtdkbybXHCgyjEFt6IUJnHMA1f9CHbjBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:56:38.602925Z"},"content_sha256":"a278c3a96fc9da825db2f81dbe7a69d269efbaec4187df1ec60636dfe1b8e538","schema_version":"1.0","event_id":"sha256:a278c3a96fc9da825db2f81dbe7a69d269efbaec4187df1ec60636dfe1b8e538"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:4HSFG7SQ5UI4O3TEX42NRG3BV7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multiscale light-matter dynamics in quantum materials: from electrons to topological superlattices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.comp-ph","authors_text":"Aiichiro Nakano, Albert Musaelian, Anders Johansson, Boris Kozinsky, Fuyuki Shimojo, John Pennycook, Ken-ichi Nomura, Nalini Kumar, Nariman Piroozan, Priya Vashishta, Rajiv K. Kalia, Shinnosuke Hattori, Taufeq Mohammed Razakh, Thomas Linker, Ye Luo","submitted_at":"2025-08-31T19:14:52Z","abstract_excerpt":"Light-matter dynamics in topological quantum materials enables ultralow-power, ultrafast devices. A challenge is simulating multiple field and particle equations for light, electrons, and atoms over vast spatiotemporal scales on Exaflop/s computers with increased heterogeneity and low-precision focus. We present a paradigm shift that solves the multiscale/multiphysics/heterogeneity challenge harnessing hardware heterogeneity and low-precision arithmetic. Divide-conquer-recombine algorithms divide the problem into not only spatial but also physical subproblems of small dynamic ranges and minima"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.00966","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/2509.00966/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":"2026-07-05T12:02:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P6Z/WsVGfiBOsvUAfcPTqIs6BzFyRwxZcB5FI5IUJNInUHcsJOkh8iEGBnRWBHeMMuxTbsnPxmRkcG4PyvTmBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:56:38.603294Z"},"content_sha256":"0acd8244f7f79056333d1c6c4299a315624779b09a21e00c394e23e63695c123","schema_version":"1.0","event_id":"sha256:0acd8244f7f79056333d1c6c4299a315624779b09a21e00c394e23e63695c123"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4HSFG7SQ5UI4O3TEX42NRG3BV7/bundle.json","state_url":"https://pith.science/pith/4HSFG7SQ5UI4O3TEX42NRG3BV7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4HSFG7SQ5UI4O3TEX42NRG3BV7/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":"2026-07-07T09:56:38Z","links":{"resolver":"https://pith.science/pith/4HSFG7SQ5UI4O3TEX42NRG3BV7","bundle":"https://pith.science/pith/4HSFG7SQ5UI4O3TEX42NRG3BV7/bundle.json","state":"https://pith.science/pith/4HSFG7SQ5UI4O3TEX42NRG3BV7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4HSFG7SQ5UI4O3TEX42NRG3BV7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:4HSFG7SQ5UI4O3TEX42NRG3BV7","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":"dad8e17a02c3cd4d7a692e204c068083d2124cee0a7fae4f812aa047482b5c66","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2025-08-31T19:14:52Z","title_canon_sha256":"a928a47bc8b99bf4834e16ce49f2136d429ad0246382503efc75a53fead7067d"},"schema_version":"1.0","source":{"id":"2509.00966","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.00966","created_at":"2026-07-05T12:02:25Z"},{"alias_kind":"arxiv_version","alias_value":"2509.00966v1","created_at":"2026-07-05T12:02:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.00966","created_at":"2026-07-05T12:02:25Z"},{"alias_kind":"pith_short_12","alias_value":"4HSFG7SQ5UI4","created_at":"2026-07-05T12:02:25Z"},{"alias_kind":"pith_short_16","alias_value":"4HSFG7SQ5UI4O3TE","created_at":"2026-07-05T12:02:25Z"},{"alias_kind":"pith_short_8","alias_value":"4HSFG7SQ","created_at":"2026-07-05T12:02:25Z"}],"graph_snapshots":[{"event_id":"sha256:0acd8244f7f79056333d1c6c4299a315624779b09a21e00c394e23e63695c123","target":"graph","created_at":"2026-07-05T12:02:25Z","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/2509.00966/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Light-matter dynamics in topological quantum materials enables ultralow-power, ultrafast devices. A challenge is simulating multiple field and particle equations for light, electrons, and atoms over vast spatiotemporal scales on Exaflop/s computers with increased heterogeneity and low-precision focus. We present a paradigm shift that solves the multiscale/multiphysics/heterogeneity challenge harnessing hardware heterogeneity and low-precision arithmetic. Divide-conquer-recombine algorithms divide the problem into not only spatial but also physical subproblems of small dynamic ranges and minima","authors_text":"Aiichiro Nakano, Albert Musaelian, Anders Johansson, Boris Kozinsky, Fuyuki Shimojo, John Pennycook, Ken-ichi Nomura, Nalini Kumar, Nariman Piroozan, Priya Vashishta, Rajiv K. Kalia, Shinnosuke Hattori, Taufeq Mohammed Razakh, Thomas Linker, Ye Luo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2025-08-31T19:14:52Z","title":"Multiscale light-matter dynamics in quantum materials: from electrons to topological superlattices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.00966","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:a278c3a96fc9da825db2f81dbe7a69d269efbaec4187df1ec60636dfe1b8e538","target":"record","created_at":"2026-07-05T12:02:25Z","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":"dad8e17a02c3cd4d7a692e204c068083d2124cee0a7fae4f812aa047482b5c66","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2025-08-31T19:14:52Z","title_canon_sha256":"a928a47bc8b99bf4834e16ce49f2136d429ad0246382503efc75a53fead7067d"},"schema_version":"1.0","source":{"id":"2509.00966","kind":"arxiv","version":1}},"canonical_sha256":"e1e4537e50ed11c76e64bf34d89b61afd415e68aa8e5735d5e69e45f36ddaa96","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e1e4537e50ed11c76e64bf34d89b61afd415e68aa8e5735d5e69e45f36ddaa96","first_computed_at":"2026-07-05T12:02:25.851146Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:02:25.851146Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hEDTstOP/lxfd85YIndGugfg7o76bOl90MzF2Znck0MqquO9K2oepUQ3EbaUSbZawK4wxSeBO3tlYAU2e4MPCg==","signature_status":"signed_v1","signed_at":"2026-07-05T12:02:25.851635Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.00966","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a278c3a96fc9da825db2f81dbe7a69d269efbaec4187df1ec60636dfe1b8e538","sha256:0acd8244f7f79056333d1c6c4299a315624779b09a21e00c394e23e63695c123"],"state_sha256":"8c0198f5c4a34a8cc0782bc9b9e0c217431f9525f85fe09d762195e47401c7dc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qNE19r5dZC2RgWeKuCu/ll53KFQ8AUzaisNqhBtuJqP4S9ocPV4j770LZPQC6y9nvEIHqpP8pRof9nYFQWXeBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T09:56:38.605217Z","bundle_sha256":"3c44e15693c7166d9d53b8588afbb615278fca8df94f42ff537de45daf599e90"}}