{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:YAG3VEDZU4DME5LXWTJSCZCK5M","short_pith_number":"pith:YAG3VEDZ","canonical_record":{"source":{"id":"2109.13830","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-09-28T15:59:49Z","cross_cats_sorted":[],"title_canon_sha256":"830e926deda6922d74e3b45a8657824462af838cf60f780e30024b43b4db3ea4","abstract_canon_sha256":"cc8e0d1c5ff191ea34041e3357f0af78cb1e1e63890a0b34a5278ff8647d4811"},"schema_version":"1.0"},"canonical_sha256":"c00dba9079a706c27577b4d321644aeb2e28ef777b1a33a02b543c1217f13cf9","source":{"kind":"arxiv","id":"2109.13830","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.13830","created_at":"2026-07-05T03:49:19Z"},{"alias_kind":"arxiv_version","alias_value":"2109.13830v1","created_at":"2026-07-05T03:49:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.13830","created_at":"2026-07-05T03:49:19Z"},{"alias_kind":"pith_short_12","alias_value":"YAG3VEDZU4DM","created_at":"2026-07-05T03:49:19Z"},{"alias_kind":"pith_short_16","alias_value":"YAG3VEDZU4DME5LX","created_at":"2026-07-05T03:49:19Z"},{"alias_kind":"pith_short_8","alias_value":"YAG3VEDZ","created_at":"2026-07-05T03:49:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:YAG3VEDZU4DME5LXWTJSCZCK5M","target":"record","payload":{"canonical_record":{"source":{"id":"2109.13830","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-09-28T15:59:49Z","cross_cats_sorted":[],"title_canon_sha256":"830e926deda6922d74e3b45a8657824462af838cf60f780e30024b43b4db3ea4","abstract_canon_sha256":"cc8e0d1c5ff191ea34041e3357f0af78cb1e1e63890a0b34a5278ff8647d4811"},"schema_version":"1.0"},"canonical_sha256":"c00dba9079a706c27577b4d321644aeb2e28ef777b1a33a02b543c1217f13cf9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:49:19.876003Z","signature_b64":"cr88O7SRIG+cwyqo7dARpi5AI/Tq3ksBxjsW/GOB4wNo/aVGgZJRMYBgMf8z8UJcEm4K/H9+PIawDnx1gIoOAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c00dba9079a706c27577b4d321644aeb2e28ef777b1a33a02b543c1217f13cf9","last_reissued_at":"2026-07-05T03:49:19.875500Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:49:19.875500Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2109.13830","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":"2026-07-05T03:49:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KkpbH5e+VxlYJ6fXjJIK1VUwKuUF0WDhq+2ivKuIwBRo+Bv1DdpAHqpXWP+iJ4KnzAvkFt+Ju+SVgt1ahKKxBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T00:48:09.397494Z"},"content_sha256":"03d17a6843159b552112e25632505bfe544f409aad6a84e7f9df85c3c69f86e4","schema_version":"1.0","event_id":"sha256:03d17a6843159b552112e25632505bfe544f409aad6a84e7f9df85c3c69f86e4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:YAG3VEDZU4DME5LXWTJSCZCK5M","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Security bounds for decoy-state QKD with arbitrary photon-number statistics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Costantino Agnesi, Francesco Picciariello, Giulio Foletto, Giuseppe Vallone, Paolo Villoresi","submitted_at":"2021-09-28T15:59:49Z","abstract_excerpt":"The decoy-state method is a standard enhancement to quantum key distribution (QKD) protocols that has enabled countless QKD experiments with inexpensive light sources. However, new technological advancements might require further theoretical study of this technique. In particular, the decoy-state method is typically described under the assumption of a Poisson statistical distribution for the number of photons in each QKD pulse. This is a practical choice, because prepare-and-measure QKD is often implemented with attenuated lasers, which produce exactly this distribution. However, sources that "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.13830","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/2109.13830/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":"2026-07-05T03:49:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7CMAaez/miCOjs+Oto2dU519/vG5CGGzcO9BxJL4bkTSjawuNrSBdrPKVoO18TW+778lCt/RkjWiwJ3UsXefAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T00:48:09.398397Z"},"content_sha256":"9e760a9d72616547972b7a40c81177f2b543346e2efa7fa80d9e9808b16b9ef1","schema_version":"1.0","event_id":"sha256:9e760a9d72616547972b7a40c81177f2b543346e2efa7fa80d9e9808b16b9ef1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YAG3VEDZU4DME5LXWTJSCZCK5M/bundle.json","state_url":"https://pith.science/pith/YAG3VEDZU4DME5LXWTJSCZCK5M/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YAG3VEDZU4DME5LXWTJSCZCK5M/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":"2026-08-13T00:48:09Z","links":{"resolver":"https://pith.science/pith/YAG3VEDZU4DME5LXWTJSCZCK5M","bundle":"https://pith.science/pith/YAG3VEDZU4DME5LXWTJSCZCK5M/bundle.json","state":"https://pith.science/pith/YAG3VEDZU4DME5LXWTJSCZCK5M/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YAG3VEDZU4DME5LXWTJSCZCK5M/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:YAG3VEDZU4DME5LXWTJSCZCK5M","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":"cc8e0d1c5ff191ea34041e3357f0af78cb1e1e63890a0b34a5278ff8647d4811","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-09-28T15:59:49Z","title_canon_sha256":"830e926deda6922d74e3b45a8657824462af838cf60f780e30024b43b4db3ea4"},"schema_version":"1.0","source":{"id":"2109.13830","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.13830","created_at":"2026-07-05T03:49:19Z"},{"alias_kind":"arxiv_version","alias_value":"2109.13830v1","created_at":"2026-07-05T03:49:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.13830","created_at":"2026-07-05T03:49:19Z"},{"alias_kind":"pith_short_12","alias_value":"YAG3VEDZU4DM","created_at":"2026-07-05T03:49:19Z"},{"alias_kind":"pith_short_16","alias_value":"YAG3VEDZU4DME5LX","created_at":"2026-07-05T03:49:19Z"},{"alias_kind":"pith_short_8","alias_value":"YAG3VEDZ","created_at":"2026-07-05T03:49:19Z"}],"graph_snapshots":[{"event_id":"sha256:9e760a9d72616547972b7a40c81177f2b543346e2efa7fa80d9e9808b16b9ef1","target":"graph","created_at":"2026-07-05T03:49:19Z","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/2109.13830/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The decoy-state method is a standard enhancement to quantum key distribution (QKD) protocols that has enabled countless QKD experiments with inexpensive light sources. However, new technological advancements might require further theoretical study of this technique. In particular, the decoy-state method is typically described under the assumption of a Poisson statistical distribution for the number of photons in each QKD pulse. This is a practical choice, because prepare-and-measure QKD is often implemented with attenuated lasers, which produce exactly this distribution. However, sources that ","authors_text":"Costantino Agnesi, Francesco Picciariello, Giulio Foletto, Giuseppe Vallone, Paolo Villoresi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-09-28T15:59:49Z","title":"Security bounds for decoy-state QKD with arbitrary photon-number statistics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.13830","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":"sha256:03d17a6843159b552112e25632505bfe544f409aad6a84e7f9df85c3c69f86e4","target":"record","created_at":"2026-07-05T03:49:19Z","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":"cc8e0d1c5ff191ea34041e3357f0af78cb1e1e63890a0b34a5278ff8647d4811","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-09-28T15:59:49Z","title_canon_sha256":"830e926deda6922d74e3b45a8657824462af838cf60f780e30024b43b4db3ea4"},"schema_version":"1.0","source":{"id":"2109.13830","kind":"arxiv","version":1}},"canonical_sha256":"c00dba9079a706c27577b4d321644aeb2e28ef777b1a33a02b543c1217f13cf9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c00dba9079a706c27577b4d321644aeb2e28ef777b1a33a02b543c1217f13cf9","first_computed_at":"2026-07-05T03:49:19.875500Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:49:19.875500Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cr88O7SRIG+cwyqo7dARpi5AI/Tq3ksBxjsW/GOB4wNo/aVGgZJRMYBgMf8z8UJcEm4K/H9+PIawDnx1gIoOAg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:49:19.876003Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.13830","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:03d17a6843159b552112e25632505bfe544f409aad6a84e7f9df85c3c69f86e4","sha256:9e760a9d72616547972b7a40c81177f2b543346e2efa7fa80d9e9808b16b9ef1"],"state_sha256":"563db089b1a466400f3adb5e35adb615155cecd5205489a2db130b2e5b5cd2ea"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7rVrvwxWUrRaTjt4WdfCYfSRdh+sR0bFPillmsbmUX/avrHlSFsgiZAGUq7mw6+HyzX5c5W1Us8/ugDJfv1RDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T00:48:09.413823Z","bundle_sha256":"63b00bb04438ff7e751a796dc29a1de5a3b47ac9cd732080d5744eeaabe84def"}}