{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:P6QWW6VNQXET67OUPXSJZO2F2X","short_pith_number":"pith:P6QWW6VN","canonical_record":{"source":{"id":"1511.05854","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-11-18T16:10:25Z","cross_cats_sorted":[],"title_canon_sha256":"fcf2e54ad6e8694fd6937bc2b4a2232171b40e158c0ca074d26665e70932668b","abstract_canon_sha256":"b77dd689a56a01d5de81b16edb7c6a41ce8424c6c7a9e53714e492a2bd832996"},"schema_version":"1.0"},"canonical_sha256":"7fa16b7aad85c93f7dd47de49cbb45d5f3bb2512ddd79eed9e7cc26332d1ac15","source":{"kind":"arxiv","id":"1511.05854","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.05854","created_at":"2026-05-18T01:12:49Z"},{"alias_kind":"arxiv_version","alias_value":"1511.05854v1","created_at":"2026-05-18T01:12:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.05854","created_at":"2026-05-18T01:12:49Z"},{"alias_kind":"pith_short_12","alias_value":"P6QWW6VNQXET","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"P6QWW6VNQXET67OU","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"P6QWW6VN","created_at":"2026-05-18T12:29:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:P6QWW6VNQXET67OUPXSJZO2F2X","target":"record","payload":{"canonical_record":{"source":{"id":"1511.05854","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-11-18T16:10:25Z","cross_cats_sorted":[],"title_canon_sha256":"fcf2e54ad6e8694fd6937bc2b4a2232171b40e158c0ca074d26665e70932668b","abstract_canon_sha256":"b77dd689a56a01d5de81b16edb7c6a41ce8424c6c7a9e53714e492a2bd832996"},"schema_version":"1.0"},"canonical_sha256":"7fa16b7aad85c93f7dd47de49cbb45d5f3bb2512ddd79eed9e7cc26332d1ac15","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:12:49.459170Z","signature_b64":"rFQvH5riGkPWHnBh8k3lli/Ob4Txi+csggkgTPqLnCbq3KTg5HvuxxBRnCy0I/rAKQytyRmiGH962lJwAGo9Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7fa16b7aad85c93f7dd47de49cbb45d5f3bb2512ddd79eed9e7cc26332d1ac15","last_reissued_at":"2026-05-18T01:12:49.458839Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:12:49.458839Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.05854","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":"2026-05-18T01:12:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k8k5h+0E21SDuRP13Yod1eBqhqUDaBOkReF8cBsjMegJ9wlL4bDLYuAopzrnbWLIFDdS/1XVZUNzTjQSqjPIDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T21:51:10.668802Z"},"content_sha256":"51feab454e522b94b8ac7b30861c2906fe7b4d200e5abfeba023033fccec1613","schema_version":"1.0","event_id":"sha256:51feab454e522b94b8ac7b30861c2906fe7b4d200e5abfeba023033fccec1613"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:P6QWW6VNQXET67OUPXSJZO2F2X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Biexponential decay and ultralong coherence of a single qubit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"David Taj, Hans Christian \\\"Ottinger, J\\'er\\^ome Flakowski, Maksym Osmanov","submitted_at":"2015-11-18T16:10:25Z","abstract_excerpt":"A quantum two-state system, weakly coupled to a heat bath, is traditionally studied in the Born-Markov regime under the secular approximation with completely positive linear master equations. Despite its success, this microscopic approach exclusively predicts exponential decays and Lorentzian susceptibility profiles, in disagreement with a number of experimental findings. To leave this limited paradigm, we use a phenomenological positive nonlinear master equation being both thermodynamically and statistically consistent. We find that, beyond a temperature-dependent threshold, a bifurcation in "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.05854","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":"2026-05-18T01:12:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MBz3dIuoH2epjG+Dvh0i1AfY8NZkAylB+/E21e0UwmIsnWYuj9+oak6fhMkhVnxqytcd3waXQDLLMzu4p+4TAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T21:51:10.669146Z"},"content_sha256":"8423e834a365bd5e97bddcd974057c6a1446c0ef3ca8a3146b70567136e48a5e","schema_version":"1.0","event_id":"sha256:8423e834a365bd5e97bddcd974057c6a1446c0ef3ca8a3146b70567136e48a5e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P6QWW6VNQXET67OUPXSJZO2F2X/bundle.json","state_url":"https://pith.science/pith/P6QWW6VNQXET67OUPXSJZO2F2X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P6QWW6VNQXET67OUPXSJZO2F2X/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":"2026-06-24T21:51:10Z","links":{"resolver":"https://pith.science/pith/P6QWW6VNQXET67OUPXSJZO2F2X","bundle":"https://pith.science/pith/P6QWW6VNQXET67OUPXSJZO2F2X/bundle.json","state":"https://pith.science/pith/P6QWW6VNQXET67OUPXSJZO2F2X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P6QWW6VNQXET67OUPXSJZO2F2X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:P6QWW6VNQXET67OUPXSJZO2F2X","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":"b77dd689a56a01d5de81b16edb7c6a41ce8424c6c7a9e53714e492a2bd832996","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-11-18T16:10:25Z","title_canon_sha256":"fcf2e54ad6e8694fd6937bc2b4a2232171b40e158c0ca074d26665e70932668b"},"schema_version":"1.0","source":{"id":"1511.05854","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.05854","created_at":"2026-05-18T01:12:49Z"},{"alias_kind":"arxiv_version","alias_value":"1511.05854v1","created_at":"2026-05-18T01:12:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.05854","created_at":"2026-05-18T01:12:49Z"},{"alias_kind":"pith_short_12","alias_value":"P6QWW6VNQXET","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"P6QWW6VNQXET67OU","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"P6QWW6VN","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:8423e834a365bd5e97bddcd974057c6a1446c0ef3ca8a3146b70567136e48a5e","target":"graph","created_at":"2026-05-18T01:12:49Z","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":"A quantum two-state system, weakly coupled to a heat bath, is traditionally studied in the Born-Markov regime under the secular approximation with completely positive linear master equations. Despite its success, this microscopic approach exclusively predicts exponential decays and Lorentzian susceptibility profiles, in disagreement with a number of experimental findings. To leave this limited paradigm, we use a phenomenological positive nonlinear master equation being both thermodynamically and statistically consistent. We find that, beyond a temperature-dependent threshold, a bifurcation in ","authors_text":"David Taj, Hans Christian \\\"Ottinger, J\\'er\\^ome Flakowski, Maksym Osmanov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-11-18T16:10:25Z","title":"Biexponential decay and ultralong coherence of a single qubit"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.05854","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":"sha256:51feab454e522b94b8ac7b30861c2906fe7b4d200e5abfeba023033fccec1613","target":"record","created_at":"2026-05-18T01:12:49Z","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":"b77dd689a56a01d5de81b16edb7c6a41ce8424c6c7a9e53714e492a2bd832996","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-11-18T16:10:25Z","title_canon_sha256":"fcf2e54ad6e8694fd6937bc2b4a2232171b40e158c0ca074d26665e70932668b"},"schema_version":"1.0","source":{"id":"1511.05854","kind":"arxiv","version":1}},"canonical_sha256":"7fa16b7aad85c93f7dd47de49cbb45d5f3bb2512ddd79eed9e7cc26332d1ac15","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7fa16b7aad85c93f7dd47de49cbb45d5f3bb2512ddd79eed9e7cc26332d1ac15","first_computed_at":"2026-05-18T01:12:49.458839Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:12:49.458839Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rFQvH5riGkPWHnBh8k3lli/Ob4Txi+csggkgTPqLnCbq3KTg5HvuxxBRnCy0I/rAKQytyRmiGH962lJwAGo9Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:12:49.459170Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.05854","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:51feab454e522b94b8ac7b30861c2906fe7b4d200e5abfeba023033fccec1613","sha256:8423e834a365bd5e97bddcd974057c6a1446c0ef3ca8a3146b70567136e48a5e"],"state_sha256":"df1dba14fdcac64f406bb849a57182a9dca86a729db09d2dad5a10bd3602d156"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7mJexfCk8h3U3wTpKuxFsjpBKaynKACFvKp522cv7Ckw4lF40kGYoqmZhjE1bZJGcj2m2S4zJM1y7vB3b3UVDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T21:51:10.671025Z","bundle_sha256":"4ab24a7d6245bae0a0328945722fcc5a6d55bcde69f7ec984a1f61897244d97a"}}