{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:633CJPZQE2BSNGN2UKTASSSCXB","short_pith_number":"pith:633CJPZQ","schema_version":"1.0","canonical_sha256":"f6f624bf3026832699baa2a6094a42b844c1fece5a3d6d50b2bdabdd26d61ae8","source":{"kind":"arxiv","id":"0904.0307","version":1},"attestation_state":"computed","paper":{"title":"Capacity with energy constraint in coherent state channel","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Masahito Hayashi","submitted_at":"2009-04-02T05:34:22Z","abstract_excerpt":"We consider two kind of energy constraints when the output state is a coherent state. One is a constraint on the total energy during a fixed period; the other is a constraint on the total energy for a single code. The first setting can be easily dealt with by using the conventional capacity formula. The second setting requires the general capacity formula for a classical-quantum channel."},"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":"0904.0307","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-04-02T05:34:22Z","cross_cats_sorted":[],"title_canon_sha256":"b206b9aeb87096a03581329841c7dcb02584bda73e470644bcca74351ae61242","abstract_canon_sha256":"621450facb60ff86c851010cf2bee8663cd71e1df15884187657deab827bc47c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:19:32.706612Z","signature_b64":"G0HtuEy2a+W6i2OquMOJhFKMaYDiFvOv291ptPcfhhBBKzHGRARk69KpAeLfSefJRsNQPI3Q3KWSruCb2oFYAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f6f624bf3026832699baa2a6094a42b844c1fece5a3d6d50b2bdabdd26d61ae8","last_reissued_at":"2026-05-18T04:19:32.706195Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:19:32.706195Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Capacity with energy constraint in coherent state channel","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Masahito Hayashi","submitted_at":"2009-04-02T05:34:22Z","abstract_excerpt":"We consider two kind of energy constraints when the output state is a coherent state. One is a constraint on the total energy during a fixed period; the other is a constraint on the total energy for a single code. The first setting can be easily dealt with by using the conventional capacity formula. The second setting requires the general capacity formula for a classical-quantum channel."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.0307","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"0904.0307","created_at":"2026-05-18T04:19:32.706253+00:00"},{"alias_kind":"arxiv_version","alias_value":"0904.0307v1","created_at":"2026-05-18T04:19:32.706253+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.0307","created_at":"2026-05-18T04:19:32.706253+00:00"},{"alias_kind":"pith_short_12","alias_value":"633CJPZQE2BS","created_at":"2026-05-18T12:25:58.837520+00:00"},{"alias_kind":"pith_short_16","alias_value":"633CJPZQE2BSNGN2","created_at":"2026-05-18T12:25:58.837520+00:00"},{"alias_kind":"pith_short_8","alias_value":"633CJPZQ","created_at":"2026-05-18T12:25:58.837520+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/633CJPZQE2BSNGN2UKTASSSCXB","json":"https://pith.science/pith/633CJPZQE2BSNGN2UKTASSSCXB.json","graph_json":"https://pith.science/api/pith-number/633CJPZQE2BSNGN2UKTASSSCXB/graph.json","events_json":"https://pith.science/api/pith-number/633CJPZQE2BSNGN2UKTASSSCXB/events.json","paper":"https://pith.science/paper/633CJPZQ"},"agent_actions":{"view_html":"https://pith.science/pith/633CJPZQE2BSNGN2UKTASSSCXB","download_json":"https://pith.science/pith/633CJPZQE2BSNGN2UKTASSSCXB.json","view_paper":"https://pith.science/paper/633CJPZQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0904.0307&json=true","fetch_graph":"https://pith.science/api/pith-number/633CJPZQE2BSNGN2UKTASSSCXB/graph.json","fetch_events":"https://pith.science/api/pith-number/633CJPZQE2BSNGN2UKTASSSCXB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/633CJPZQE2BSNGN2UKTASSSCXB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/633CJPZQE2BSNGN2UKTASSSCXB/action/storage_attestation","attest_author":"https://pith.science/pith/633CJPZQE2BSNGN2UKTASSSCXB/action/author_attestation","sign_citation":"https://pith.science/pith/633CJPZQE2BSNGN2UKTASSSCXB/action/citation_signature","submit_replication":"https://pith.science/pith/633CJPZQE2BSNGN2UKTASSSCXB/action/replication_record"}},"created_at":"2026-05-18T04:19:32.706253+00:00","updated_at":"2026-05-18T04:19:32.706253+00:00"}