{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:VKJVXYEH2R33UXLM43PTBOO6DH","short_pith_number":"pith:VKJVXYEH","schema_version":"1.0","canonical_sha256":"aa935be087d477ba5d6ce6df30b9de19c16e649cb7bedcc6e7104cea3282e0eb","source":{"kind":"arxiv","id":"1112.3626","version":2},"attestation_state":"computed","paper":{"title":"Eigenmodes in the long-time behavior of a coupled spin system measured with nuclear magnetic resonance","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.stat-mech","authors_text":"Benno Meier, Jonas Kohlrautz, J\\\"urgen Haase","submitted_at":"2011-12-15T19:58:23Z","abstract_excerpt":"The many body quantum dynamics of dipolar coupled nuclear spins I = 1/2 on an otherwise isolated cubic lattice are studied with nuclear magnetic resonance (NMR). By increasing the signal-to-noise ratio by two orders of magnitude compared with previous reports for the free induction decay (FID) of 19F in CaF2 we obtain new insight into its long-time behavior. We confirm that the tail of the FID is an exponentially decaying cosine, but our measurements reveal a second universal decay mode with comparable frequency but twice the decay constant. This result is in agreement with a recent theoretica"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1112.3626","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2011-12-15T19:58:23Z","cross_cats_sorted":[],"title_canon_sha256":"ff46c8dc5c93ec38302c2882bd70e2227b5d449a331156dd799f35b5d1bd03aa","abstract_canon_sha256":"692a0cfc958502ec68c2b871690f622c3489d3153fce4e163d519357ca1c70f5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:52:56.391504Z","signature_b64":"LX+Vocqs5gvwmdRSEAWt8fkjVXyGMsTdIf4vDHb7JLaky8I/Y88+Hr6gPndHSjcC2lMPAW3lmS9dgQfW2loYCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aa935be087d477ba5d6ce6df30b9de19c16e649cb7bedcc6e7104cea3282e0eb","last_reissued_at":"2026-05-18T02:52:56.390831Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:52:56.390831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Eigenmodes in the long-time behavior of a coupled spin system measured with nuclear magnetic resonance","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.stat-mech","authors_text":"Benno Meier, Jonas Kohlrautz, J\\\"urgen Haase","submitted_at":"2011-12-15T19:58:23Z","abstract_excerpt":"The many body quantum dynamics of dipolar coupled nuclear spins I = 1/2 on an otherwise isolated cubic lattice are studied with nuclear magnetic resonance (NMR). By increasing the signal-to-noise ratio by two orders of magnitude compared with previous reports for the free induction decay (FID) of 19F in CaF2 we obtain new insight into its long-time behavior. We confirm that the tail of the FID is an exponentially decaying cosine, but our measurements reveal a second universal decay mode with comparable frequency but twice the decay constant. This result is in agreement with a recent theoretica"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.3626","kind":"arxiv","version":2},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1112.3626","created_at":"2026-05-18T02:52:56.390924+00:00"},{"alias_kind":"arxiv_version","alias_value":"1112.3626v2","created_at":"2026-05-18T02:52:56.390924+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.3626","created_at":"2026-05-18T02:52:56.390924+00:00"},{"alias_kind":"pith_short_12","alias_value":"VKJVXYEH2R33","created_at":"2026-05-18T12:26:44.992195+00:00"},{"alias_kind":"pith_short_16","alias_value":"VKJVXYEH2R33UXLM","created_at":"2026-05-18T12:26:44.992195+00:00"},{"alias_kind":"pith_short_8","alias_value":"VKJVXYEH","created_at":"2026-05-18T12:26:44.992195+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/VKJVXYEH2R33UXLM43PTBOO6DH","json":"https://pith.science/pith/VKJVXYEH2R33UXLM43PTBOO6DH.json","graph_json":"https://pith.science/api/pith-number/VKJVXYEH2R33UXLM43PTBOO6DH/graph.json","events_json":"https://pith.science/api/pith-number/VKJVXYEH2R33UXLM43PTBOO6DH/events.json","paper":"https://pith.science/paper/VKJVXYEH"},"agent_actions":{"view_html":"https://pith.science/pith/VKJVXYEH2R33UXLM43PTBOO6DH","download_json":"https://pith.science/pith/VKJVXYEH2R33UXLM43PTBOO6DH.json","view_paper":"https://pith.science/paper/VKJVXYEH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1112.3626&json=true","fetch_graph":"https://pith.science/api/pith-number/VKJVXYEH2R33UXLM43PTBOO6DH/graph.json","fetch_events":"https://pith.science/api/pith-number/VKJVXYEH2R33UXLM43PTBOO6DH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VKJVXYEH2R33UXLM43PTBOO6DH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VKJVXYEH2R33UXLM43PTBOO6DH/action/storage_attestation","attest_author":"https://pith.science/pith/VKJVXYEH2R33UXLM43PTBOO6DH/action/author_attestation","sign_citation":"https://pith.science/pith/VKJVXYEH2R33UXLM43PTBOO6DH/action/citation_signature","submit_replication":"https://pith.science/pith/VKJVXYEH2R33UXLM43PTBOO6DH/action/replication_record"}},"created_at":"2026-05-18T02:52:56.390924+00:00","updated_at":"2026-05-18T02:52:56.390924+00:00"}