{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:TXI2RZA2K7RT3BTM5H7XF4Y5DJ","short_pith_number":"pith:TXI2RZA2","canonical_record":{"source":{"id":"2505.16851","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-05-22T16:12:15Z","cross_cats_sorted":[],"title_canon_sha256":"74b5ef0d4e0a16b3f6dc4e107a0bfaf05153281f28818c1d55bbce0d5ca9801f","abstract_canon_sha256":"db9c41eb074dd866a2234beec7cb83adb768cb97cd20db59dd76ff6c15499307"},"schema_version":"1.0"},"canonical_sha256":"9dd1a8e41a57e33d866ce9ff72f31d1a7325f0d6baab2b0abb51145a57e03b3b","source":{"kind":"arxiv","id":"2505.16851","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.16851","created_at":"2026-07-05T11:07:42Z"},{"alias_kind":"arxiv_version","alias_value":"2505.16851v1","created_at":"2026-07-05T11:07:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.16851","created_at":"2026-07-05T11:07:42Z"},{"alias_kind":"pith_short_12","alias_value":"TXI2RZA2K7RT","created_at":"2026-07-05T11:07:42Z"},{"alias_kind":"pith_short_16","alias_value":"TXI2RZA2K7RT3BTM","created_at":"2026-07-05T11:07:42Z"},{"alias_kind":"pith_short_8","alias_value":"TXI2RZA2","created_at":"2026-07-05T11:07:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:TXI2RZA2K7RT3BTM5H7XF4Y5DJ","target":"record","payload":{"canonical_record":{"source":{"id":"2505.16851","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-05-22T16:12:15Z","cross_cats_sorted":[],"title_canon_sha256":"74b5ef0d4e0a16b3f6dc4e107a0bfaf05153281f28818c1d55bbce0d5ca9801f","abstract_canon_sha256":"db9c41eb074dd866a2234beec7cb83adb768cb97cd20db59dd76ff6c15499307"},"schema_version":"1.0"},"canonical_sha256":"9dd1a8e41a57e33d866ce9ff72f31d1a7325f0d6baab2b0abb51145a57e03b3b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:07:42.207668Z","signature_b64":"CWPUB3OYUQewoxKcsn3nwrWyNwfI1bKXjFVyjJKjz7j0d20l/a+2k499C8BrG4crd4+h+Do4CjCeJ54Yt082Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9dd1a8e41a57e33d866ce9ff72f31d1a7325f0d6baab2b0abb51145a57e03b3b","last_reissued_at":"2026-07-05T11:07:42.207164Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:07:42.207164Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.16851","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":"2026-07-05T11:07:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+0njOwZC7dYWqHq51MlSDE/sffDawLzud/S5Yg2ei28APfdK1K/41ExhC8SHZuoJDIrcHxkbX62BWM2xoeU3CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T13:59:38.905525Z"},"content_sha256":"72cbec980cb0757e72e501f8fd78f5fcba4eae5f652e57507d365e7b2f9664e5","schema_version":"1.0","event_id":"sha256:72cbec980cb0757e72e501f8fd78f5fcba4eae5f652e57507d365e7b2f9664e5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:TXI2RZA2K7RT3BTM5H7XF4Y5DJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fluctuation in energy extraction from quantum batteries: How open should the system be to control it?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Anindita Sarkar, Paranjoy Chaki, Priya Ghosh, Ujjwal Sen","submitted_at":"2025-05-22T16:12:15Z","abstract_excerpt":"We ask whether there exists a relation between controllability of the fluctuations in extractable energy of a quantum battery and (a) how open an arbitrary but fixed battery system is and (b) how large the battery is. We examine three classes of quantum processes for the energy extraction: unitary operations, completely positive trace-preserving (CPTP) maps, and arbitrary quantum maps, including physically realizable non-CPTP maps. We show that all three process classes yield the same average extractable energy from a fixed quantum battery. Moreover, open systems are better at controlling fluc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.16851","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/2505.16851/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":"2026-07-05T11:07:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FUgR6Rqgd3amkKbXdBdKqqizcEbumwgm2hg/6KshA8mjfHO/2khFmdcjcim+G1961Fk6B8lmjq4RuTIRsG1aBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T13:59:38.907684Z"},"content_sha256":"1c377e384a03040d5716feb8b347edbd0307c098ba4a40384148416b19cafba7","schema_version":"1.0","event_id":"sha256:1c377e384a03040d5716feb8b347edbd0307c098ba4a40384148416b19cafba7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TXI2RZA2K7RT3BTM5H7XF4Y5DJ/bundle.json","state_url":"https://pith.science/pith/TXI2RZA2K7RT3BTM5H7XF4Y5DJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TXI2RZA2K7RT3BTM5H7XF4Y5DJ/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":"2026-08-08T13:59:38Z","links":{"resolver":"https://pith.science/pith/TXI2RZA2K7RT3BTM5H7XF4Y5DJ","bundle":"https://pith.science/pith/TXI2RZA2K7RT3BTM5H7XF4Y5DJ/bundle.json","state":"https://pith.science/pith/TXI2RZA2K7RT3BTM5H7XF4Y5DJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TXI2RZA2K7RT3BTM5H7XF4Y5DJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:TXI2RZA2K7RT3BTM5H7XF4Y5DJ","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":"db9c41eb074dd866a2234beec7cb83adb768cb97cd20db59dd76ff6c15499307","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-05-22T16:12:15Z","title_canon_sha256":"74b5ef0d4e0a16b3f6dc4e107a0bfaf05153281f28818c1d55bbce0d5ca9801f"},"schema_version":"1.0","source":{"id":"2505.16851","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.16851","created_at":"2026-07-05T11:07:42Z"},{"alias_kind":"arxiv_version","alias_value":"2505.16851v1","created_at":"2026-07-05T11:07:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.16851","created_at":"2026-07-05T11:07:42Z"},{"alias_kind":"pith_short_12","alias_value":"TXI2RZA2K7RT","created_at":"2026-07-05T11:07:42Z"},{"alias_kind":"pith_short_16","alias_value":"TXI2RZA2K7RT3BTM","created_at":"2026-07-05T11:07:42Z"},{"alias_kind":"pith_short_8","alias_value":"TXI2RZA2","created_at":"2026-07-05T11:07:42Z"}],"graph_snapshots":[{"event_id":"sha256:1c377e384a03040d5716feb8b347edbd0307c098ba4a40384148416b19cafba7","target":"graph","created_at":"2026-07-05T11:07:42Z","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/2505.16851/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We ask whether there exists a relation between controllability of the fluctuations in extractable energy of a quantum battery and (a) how open an arbitrary but fixed battery system is and (b) how large the battery is. We examine three classes of quantum processes for the energy extraction: unitary operations, completely positive trace-preserving (CPTP) maps, and arbitrary quantum maps, including physically realizable non-CPTP maps. We show that all three process classes yield the same average extractable energy from a fixed quantum battery. Moreover, open systems are better at controlling fluc","authors_text":"Anindita Sarkar, Paranjoy Chaki, Priya Ghosh, Ujjwal Sen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-05-22T16:12:15Z","title":"Fluctuation in energy extraction from quantum batteries: How open should the system be to control it?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.16851","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":"sha256:72cbec980cb0757e72e501f8fd78f5fcba4eae5f652e57507d365e7b2f9664e5","target":"record","created_at":"2026-07-05T11:07:42Z","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":"db9c41eb074dd866a2234beec7cb83adb768cb97cd20db59dd76ff6c15499307","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-05-22T16:12:15Z","title_canon_sha256":"74b5ef0d4e0a16b3f6dc4e107a0bfaf05153281f28818c1d55bbce0d5ca9801f"},"schema_version":"1.0","source":{"id":"2505.16851","kind":"arxiv","version":1}},"canonical_sha256":"9dd1a8e41a57e33d866ce9ff72f31d1a7325f0d6baab2b0abb51145a57e03b3b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9dd1a8e41a57e33d866ce9ff72f31d1a7325f0d6baab2b0abb51145a57e03b3b","first_computed_at":"2026-07-05T11:07:42.207164Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:07:42.207164Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CWPUB3OYUQewoxKcsn3nwrWyNwfI1bKXjFVyjJKjz7j0d20l/a+2k499C8BrG4crd4+h+Do4CjCeJ54Yt082Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T11:07:42.207668Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.16851","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:72cbec980cb0757e72e501f8fd78f5fcba4eae5f652e57507d365e7b2f9664e5","sha256:1c377e384a03040d5716feb8b347edbd0307c098ba4a40384148416b19cafba7"],"state_sha256":"0865bae1bdee87ebc03980f2b500d047fcd24761dab08a389eb05a3efa923796"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TFa8Pgir3okV3qVDOM28+1OhOhvPeIGdfiQ9MqiXDTBJd4F9TbProqkYIyeSuDWXP/elKRqGGnZK5Xdl1QwNAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T13:59:38.917920Z","bundle_sha256":"7ffb40c69dcd1efd7e957d20fe1ce1056cd73adee52a16c3c1983d88711b24b6"}}