{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:66BTLB6ICC5FGR5MBXUKVLAPQJ","short_pith_number":"pith:66BTLB6I","canonical_record":{"source":{"id":"1502.01324","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2015-02-04T20:40:05Z","cross_cats_sorted":[],"title_canon_sha256":"d8932624224bbad046aea5269dec0a3a853d34a34602dcbdb99f73ce798cd325","abstract_canon_sha256":"f0115dcccc23e3233ceeecc272d7bf0852bb6f278eb59b8a3b6deb3b210327f1"},"schema_version":"1.0"},"canonical_sha256":"f7833587c810ba5347ac0de8aaac0f826621f414c981496f1517fabb8d67e77e","source":{"kind":"arxiv","id":"1502.01324","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.01324","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"arxiv_version","alias_value":"1502.01324v1","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.01324","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"pith_short_12","alias_value":"66BTLB6ICC5F","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"66BTLB6ICC5FGR5M","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"66BTLB6I","created_at":"2026-05-18T12:29:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:66BTLB6ICC5FGR5MBXUKVLAPQJ","target":"record","payload":{"canonical_record":{"source":{"id":"1502.01324","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2015-02-04T20:40:05Z","cross_cats_sorted":[],"title_canon_sha256":"d8932624224bbad046aea5269dec0a3a853d34a34602dcbdb99f73ce798cd325","abstract_canon_sha256":"f0115dcccc23e3233ceeecc272d7bf0852bb6f278eb59b8a3b6deb3b210327f1"},"schema_version":"1.0"},"canonical_sha256":"f7833587c810ba5347ac0de8aaac0f826621f414c981496f1517fabb8d67e77e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:04.803624Z","signature_b64":"MHmjVNsZGssoSfj8vqwZjy3s0ObvGuVp5sCrT7qpo6O65X7gKYO7YUOyp9S9zih7L+Y82Km5+f6K9FV5Qvu9Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f7833587c810ba5347ac0de8aaac0f826621f414c981496f1517fabb8d67e77e","last_reissued_at":"2026-05-18T01:41:04.802952Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:04.802952Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.01324","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":"2026-05-18T01:41:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FZNklq9a5JPYAZtKcxqHv2tN8XjTr/JZEWoHphge3OSJgoRSyPgyay+MWkPCysmu1t7PxcixKjHpQtnOZVe2BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T22:23:56.349015Z"},"content_sha256":"019d9778d12565e37a7bd385748deae2715d9dfe898f279e02b500069dba579a","schema_version":"1.0","event_id":"sha256:019d9778d12565e37a7bd385748deae2715d9dfe898f279e02b500069dba579a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:66BTLB6ICC5FGR5MBXUKVLAPQJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Subsystem real-time Time Dependent Density Functional Theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"Alisa Krishtal, Davide Ceresoli, Michele Pavanello","submitted_at":"2015-02-04T20:40:05Z","abstract_excerpt":"We present the extension of Frozen Density Embedding (FDE) theory to real-time Time Dependent Density Functional Theory (rt-TDDFT). FDE a is DFT-in-DFT embedding method that allows to partition a larger Kohn-Sham system into a set of smaller, coupled Kohn-Sham systems. Additional to the computational advantage, FDE provides physical insight into the properties of embedded systems and the coupling interactions between them. The extension to rt-TDDFT is done straightforwardly by evolving the Kohn-Sham subsystems in time simultaneously, while updating the embedding potential between the systems a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.01324","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":"2026-05-18T01:41:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"seYYPdPGs1z5EQ7s83JqpVHSjvVCzXSOqr/k5D4terJ+XDWgb4b/sXshb3mpSVj3xXJZ60Y3nLeK9VtQPqgICA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T22:23:56.349373Z"},"content_sha256":"8f499ea999a08c5294fc3e4a4364c3ee0aca37b8c7af8db6c78b29a89eda30a8","schema_version":"1.0","event_id":"sha256:8f499ea999a08c5294fc3e4a4364c3ee0aca37b8c7af8db6c78b29a89eda30a8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/66BTLB6ICC5FGR5MBXUKVLAPQJ/bundle.json","state_url":"https://pith.science/pith/66BTLB6ICC5FGR5MBXUKVLAPQJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/66BTLB6ICC5FGR5MBXUKVLAPQJ/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":"2026-06-25T22:23:56Z","links":{"resolver":"https://pith.science/pith/66BTLB6ICC5FGR5MBXUKVLAPQJ","bundle":"https://pith.science/pith/66BTLB6ICC5FGR5MBXUKVLAPQJ/bundle.json","state":"https://pith.science/pith/66BTLB6ICC5FGR5MBXUKVLAPQJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/66BTLB6ICC5FGR5MBXUKVLAPQJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:66BTLB6ICC5FGR5MBXUKVLAPQJ","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":"f0115dcccc23e3233ceeecc272d7bf0852bb6f278eb59b8a3b6deb3b210327f1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2015-02-04T20:40:05Z","title_canon_sha256":"d8932624224bbad046aea5269dec0a3a853d34a34602dcbdb99f73ce798cd325"},"schema_version":"1.0","source":{"id":"1502.01324","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.01324","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"arxiv_version","alias_value":"1502.01324v1","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.01324","created_at":"2026-05-18T01:41:04Z"},{"alias_kind":"pith_short_12","alias_value":"66BTLB6ICC5F","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"66BTLB6ICC5FGR5M","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"66BTLB6I","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:8f499ea999a08c5294fc3e4a4364c3ee0aca37b8c7af8db6c78b29a89eda30a8","target":"graph","created_at":"2026-05-18T01:41:04Z","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":"We present the extension of Frozen Density Embedding (FDE) theory to real-time Time Dependent Density Functional Theory (rt-TDDFT). FDE a is DFT-in-DFT embedding method that allows to partition a larger Kohn-Sham system into a set of smaller, coupled Kohn-Sham systems. Additional to the computational advantage, FDE provides physical insight into the properties of embedded systems and the coupling interactions between them. The extension to rt-TDDFT is done straightforwardly by evolving the Kohn-Sham subsystems in time simultaneously, while updating the embedding potential between the systems a","authors_text":"Alisa Krishtal, Davide Ceresoli, Michele Pavanello","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2015-02-04T20:40:05Z","title":"Subsystem real-time Time Dependent Density Functional Theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.01324","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":"sha256:019d9778d12565e37a7bd385748deae2715d9dfe898f279e02b500069dba579a","target":"record","created_at":"2026-05-18T01:41:04Z","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":"f0115dcccc23e3233ceeecc272d7bf0852bb6f278eb59b8a3b6deb3b210327f1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2015-02-04T20:40:05Z","title_canon_sha256":"d8932624224bbad046aea5269dec0a3a853d34a34602dcbdb99f73ce798cd325"},"schema_version":"1.0","source":{"id":"1502.01324","kind":"arxiv","version":1}},"canonical_sha256":"f7833587c810ba5347ac0de8aaac0f826621f414c981496f1517fabb8d67e77e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f7833587c810ba5347ac0de8aaac0f826621f414c981496f1517fabb8d67e77e","first_computed_at":"2026-05-18T01:41:04.802952Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:04.802952Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MHmjVNsZGssoSfj8vqwZjy3s0ObvGuVp5sCrT7qpo6O65X7gKYO7YUOyp9S9zih7L+Y82Km5+f6K9FV5Qvu9Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:04.803624Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.01324","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:019d9778d12565e37a7bd385748deae2715d9dfe898f279e02b500069dba579a","sha256:8f499ea999a08c5294fc3e4a4364c3ee0aca37b8c7af8db6c78b29a89eda30a8"],"state_sha256":"fa016f310b8ab052584d352f148a11f7c84942cecd1201c180d5924b2998bb1e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3UlbsRPeBf8lQEDRmcSSjGVnUyQqlQlFwyQX9s+KK8ri6nD3dW+usBJLPoqJ+mUbJ7ZYWSZ34XcJfGhgG4iOBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-25T22:23:56.351422Z","bundle_sha256":"746afeee3db983f80a9accae8e17594e1274c7e6c3dace453e3765cdbc540868"}}