{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:4ZDMEYVBO4C3NLGMVZ3QT5KS7Y","short_pith_number":"pith:4ZDMEYVB","canonical_record":{"source":{"id":"1502.05876","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-02-20T14:07:01Z","cross_cats_sorted":["cond-mat.stat-mech","hep-th","math-ph","math.MP","physics.optics"],"title_canon_sha256":"c19d31ae776ddd8483fcd42d96184d295ee77c7bb69db068ba90fa69e6939322","abstract_canon_sha256":"f5bc45fc02afc60db298e2838a7abe27c606b5106a4c0d271a4ac62aa2f57261"},"schema_version":"1.0"},"canonical_sha256":"e646c262a17705b6acccae7709f552fe10c92ee89dac47f2d1240aed56e4364e","source":{"kind":"arxiv","id":"1502.05876","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.05876","created_at":"2026-05-18T01:37:03Z"},{"alias_kind":"arxiv_version","alias_value":"1502.05876v4","created_at":"2026-05-18T01:37:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.05876","created_at":"2026-05-18T01:37:03Z"},{"alias_kind":"pith_short_12","alias_value":"4ZDMEYVBO4C3","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"4ZDMEYVBO4C3NLGM","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"4ZDMEYVB","created_at":"2026-05-18T12:29:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:4ZDMEYVBO4C3NLGMVZ3QT5KS7Y","target":"record","payload":{"canonical_record":{"source":{"id":"1502.05876","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-02-20T14:07:01Z","cross_cats_sorted":["cond-mat.stat-mech","hep-th","math-ph","math.MP","physics.optics"],"title_canon_sha256":"c19d31ae776ddd8483fcd42d96184d295ee77c7bb69db068ba90fa69e6939322","abstract_canon_sha256":"f5bc45fc02afc60db298e2838a7abe27c606b5106a4c0d271a4ac62aa2f57261"},"schema_version":"1.0"},"canonical_sha256":"e646c262a17705b6acccae7709f552fe10c92ee89dac47f2d1240aed56e4364e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:37:03.792878Z","signature_b64":"b4LGjbQI1xhLiy2H+oC0J6JnrmrjlwwD/V46002ydFdjRLtqHFEmoUjuAx8PBb2mcO/sv2vFfli/FgTzasPHAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e646c262a17705b6acccae7709f552fe10c92ee89dac47f2d1240aed56e4364e","last_reissued_at":"2026-05-18T01:37:03.792393Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:37:03.792393Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.05876","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:37:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+1SK6j7dmlFmeGt1gDNc8VaO02cbrZRowbJ8sRHSKG7kPQGZCqhsaAem9SLHufDxadsyb/ZAk/7tMN6br0oEBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T11:18:26.900366Z"},"content_sha256":"a08ded225eae56b89e72c5be688f4eee515553c163fae99502e963c7f3b7f099","schema_version":"1.0","event_id":"sha256:a08ded225eae56b89e72c5be688f4eee515553c163fae99502e963c7f3b7f099"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:4ZDMEYVBO4C3NLGMVZ3QT5KS7Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measuring Quantum Coherence with Entanglement","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech","hep-th","math-ph","math.MP","physics.optics"],"primary_cat":"quant-ph","authors_text":"Alexander Streltsov, Gerardo Adesso, Himadri Shekhar Dhar, Manabendra Nath Bera, Uttam Singh","submitted_at":"2015-02-20T14:07:01Z","abstract_excerpt":"Quantum coherence is an essential ingredient in quantum information processing and plays a central role in emergent fields such as nanoscale thermodynamics and quantum biology. However, our understanding and quantitative characterization of coherence as an operational resource are still very limited. Here we show that any degree of coherence with respect to some reference basis can be converted to entanglement via incoherent operations. This finding allows us to define a novel general class of measures of coherence for a quantum system of arbitrary dimension, in terms of the maximum bipartite "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.05876","kind":"arxiv","version":4},"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":"2026-05-18T01:37:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"anyjFMnIrCpCrPpUh/XgDSL2hFYWFL7EOIYvgKsZrJIx7QhgftBz0ud+wlVNjG7O4SVJPLdNs/JoljEfNBafBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T11:18:26.900725Z"},"content_sha256":"25c58ccbfd9036525dc4d02d39f27af33805b106717210957f80b359eb9edf23","schema_version":"1.0","event_id":"sha256:25c58ccbfd9036525dc4d02d39f27af33805b106717210957f80b359eb9edf23"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4ZDMEYVBO4C3NLGMVZ3QT5KS7Y/bundle.json","state_url":"https://pith.science/pith/4ZDMEYVBO4C3NLGMVZ3QT5KS7Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4ZDMEYVBO4C3NLGMVZ3QT5KS7Y/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":"2026-05-30T11:18:26Z","links":{"resolver":"https://pith.science/pith/4ZDMEYVBO4C3NLGMVZ3QT5KS7Y","bundle":"https://pith.science/pith/4ZDMEYVBO4C3NLGMVZ3QT5KS7Y/bundle.json","state":"https://pith.science/pith/4ZDMEYVBO4C3NLGMVZ3QT5KS7Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4ZDMEYVBO4C3NLGMVZ3QT5KS7Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:4ZDMEYVBO4C3NLGMVZ3QT5KS7Y","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":"f5bc45fc02afc60db298e2838a7abe27c606b5106a4c0d271a4ac62aa2f57261","cross_cats_sorted":["cond-mat.stat-mech","hep-th","math-ph","math.MP","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-02-20T14:07:01Z","title_canon_sha256":"c19d31ae776ddd8483fcd42d96184d295ee77c7bb69db068ba90fa69e6939322"},"schema_version":"1.0","source":{"id":"1502.05876","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.05876","created_at":"2026-05-18T01:37:03Z"},{"alias_kind":"arxiv_version","alias_value":"1502.05876v4","created_at":"2026-05-18T01:37:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.05876","created_at":"2026-05-18T01:37:03Z"},{"alias_kind":"pith_short_12","alias_value":"4ZDMEYVBO4C3","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"4ZDMEYVBO4C3NLGM","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"4ZDMEYVB","created_at":"2026-05-18T12:29:05Z"}],"graph_snapshots":[{"event_id":"sha256:25c58ccbfd9036525dc4d02d39f27af33805b106717210957f80b359eb9edf23","target":"graph","created_at":"2026-05-18T01:37:03Z","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":"Quantum coherence is an essential ingredient in quantum information processing and plays a central role in emergent fields such as nanoscale thermodynamics and quantum biology. However, our understanding and quantitative characterization of coherence as an operational resource are still very limited. Here we show that any degree of coherence with respect to some reference basis can be converted to entanglement via incoherent operations. This finding allows us to define a novel general class of measures of coherence for a quantum system of arbitrary dimension, in terms of the maximum bipartite ","authors_text":"Alexander Streltsov, Gerardo Adesso, Himadri Shekhar Dhar, Manabendra Nath Bera, Uttam Singh","cross_cats":["cond-mat.stat-mech","hep-th","math-ph","math.MP","physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-02-20T14:07:01Z","title":"Measuring Quantum Coherence with Entanglement"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.05876","kind":"arxiv","version":4},"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:a08ded225eae56b89e72c5be688f4eee515553c163fae99502e963c7f3b7f099","target":"record","created_at":"2026-05-18T01:37:03Z","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":"f5bc45fc02afc60db298e2838a7abe27c606b5106a4c0d271a4ac62aa2f57261","cross_cats_sorted":["cond-mat.stat-mech","hep-th","math-ph","math.MP","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-02-20T14:07:01Z","title_canon_sha256":"c19d31ae776ddd8483fcd42d96184d295ee77c7bb69db068ba90fa69e6939322"},"schema_version":"1.0","source":{"id":"1502.05876","kind":"arxiv","version":4}},"canonical_sha256":"e646c262a17705b6acccae7709f552fe10c92ee89dac47f2d1240aed56e4364e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e646c262a17705b6acccae7709f552fe10c92ee89dac47f2d1240aed56e4364e","first_computed_at":"2026-05-18T01:37:03.792393Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:37:03.792393Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"b4LGjbQI1xhLiy2H+oC0J6JnrmrjlwwD/V46002ydFdjRLtqHFEmoUjuAx8PBb2mcO/sv2vFfli/FgTzasPHAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:37:03.792878Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.05876","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a08ded225eae56b89e72c5be688f4eee515553c163fae99502e963c7f3b7f099","sha256:25c58ccbfd9036525dc4d02d39f27af33805b106717210957f80b359eb9edf23"],"state_sha256":"377b6dc96d0937ade8ae560eb0212c98bcf7aa098128f0c7333312f0b084cf33"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jc8QXIR2MnfFUR7waCuUfg2DjKfxB9j/a5cOeCGpSihxAYEdFWAlfwUTgdpDjm46Z5V7MQdnymIYkeVd3mOYCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T11:18:26.902726Z","bundle_sha256":"04eee1bc177ef19884174cf36329ee996b2c6850c3a18c4c0f6661742b0ac879"}}