{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:EO7XOASE6VECS3DOJDKFIEBBQU","short_pith_number":"pith:EO7XOASE","canonical_record":{"source":{"id":"1012.4434","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-20T18:44:48Z","cross_cats_sorted":[],"title_canon_sha256":"25dc615fa33d1da7a55ba017a62aa4e5af76b1228427dcd8f90bf6c5a1485322","abstract_canon_sha256":"a0bc23889a8ffceb6dc4169dc23169b2a3ff522ce6319fcb4e0b901d99bf53d8"},"schema_version":"1.0"},"canonical_sha256":"23bf770244f548296c6e48d4541021851b1e8dcab5e96ac50127d328c75827d2","source":{"kind":"arxiv","id":"1012.4434","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.4434","created_at":"2026-05-18T02:04:21Z"},{"alias_kind":"arxiv_version","alias_value":"1012.4434v1","created_at":"2026-05-18T02:04:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.4434","created_at":"2026-05-18T02:04:21Z"},{"alias_kind":"pith_short_12","alias_value":"EO7XOASE6VEC","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"EO7XOASE6VECS3DO","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"EO7XOASE","created_at":"2026-05-18T12:26:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:EO7XOASE6VECS3DOJDKFIEBBQU","target":"record","payload":{"canonical_record":{"source":{"id":"1012.4434","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-20T18:44:48Z","cross_cats_sorted":[],"title_canon_sha256":"25dc615fa33d1da7a55ba017a62aa4e5af76b1228427dcd8f90bf6c5a1485322","abstract_canon_sha256":"a0bc23889a8ffceb6dc4169dc23169b2a3ff522ce6319fcb4e0b901d99bf53d8"},"schema_version":"1.0"},"canonical_sha256":"23bf770244f548296c6e48d4541021851b1e8dcab5e96ac50127d328c75827d2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:04:21.771126Z","signature_b64":"+/zFGorwhC8NjRgDpJBDr3BhYHamQKJfxRnDcJrizNDJkGhjdMQdYNjwFM+nH0ADDCAYFqcudympYLTtdcLsAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"23bf770244f548296c6e48d4541021851b1e8dcab5e96ac50127d328c75827d2","last_reissued_at":"2026-05-18T02:04:21.770394Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:04:21.770394Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1012.4434","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":"2026-05-18T02:04:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u/xB/+8v9tIoq/cmMgJizCDHPV4lxiGGC/Q4c3LnV26WxxbHF6cjeyx1Gk/6Sdr6GNsTApdEpQQ66x4kkwg4AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T17:12:58.745513Z"},"content_sha256":"1200ed8d6842c7d0b900dd60917477d00bcdf667ea5243339f8f405706e2cf08","schema_version":"1.0","event_id":"sha256:1200ed8d6842c7d0b900dd60917477d00bcdf667ea5243339f8f405706e2cf08"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:EO7XOASE6VECS3DOJDKFIEBBQU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The role of pump coherence in two-photon interferometry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"J. Liang, S.M. Hendrickson, T.B. Pittman","submitted_at":"2010-12-20T18:44:48Z","abstract_excerpt":"We use a parametric down-conversion source pumped by a short coherence-length continuous-wave (CW) diode laser to perform two-photon interferometry in an intermediate regime between the more familiar Franson-type experiments with a long coherence-length pump laser, and the short pulsed pump \"time-bin\" experiments pioneered by Gisin's group. The use of a time-bin-like Mach-Zehnder interferometer in the CW pumping beam induces coherence between certain two-photon amplitudes, while the CW nature of the experiment prevents the elimination of remaining incoherent ones. The experimental results high"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.4434","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":"2026-05-18T02:04:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jspLWFKNJYJLLZTtSC+YUjM/qCKCWu7+YUuj7GaOcLj06LkZPSatkLc4fRRqH86H39ejALUH4Bwa6FseQ66ZAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T17:12:58.745859Z"},"content_sha256":"c32db0584513c1f9bbf2a3599a02931c0ebea9629b02622140c143ff2721ec29","schema_version":"1.0","event_id":"sha256:c32db0584513c1f9bbf2a3599a02931c0ebea9629b02622140c143ff2721ec29"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EO7XOASE6VECS3DOJDKFIEBBQU/bundle.json","state_url":"https://pith.science/pith/EO7XOASE6VECS3DOJDKFIEBBQU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EO7XOASE6VECS3DOJDKFIEBBQU/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":"2026-06-04T17:12:58Z","links":{"resolver":"https://pith.science/pith/EO7XOASE6VECS3DOJDKFIEBBQU","bundle":"https://pith.science/pith/EO7XOASE6VECS3DOJDKFIEBBQU/bundle.json","state":"https://pith.science/pith/EO7XOASE6VECS3DOJDKFIEBBQU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EO7XOASE6VECS3DOJDKFIEBBQU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:EO7XOASE6VECS3DOJDKFIEBBQU","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":"a0bc23889a8ffceb6dc4169dc23169b2a3ff522ce6319fcb4e0b901d99bf53d8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-20T18:44:48Z","title_canon_sha256":"25dc615fa33d1da7a55ba017a62aa4e5af76b1228427dcd8f90bf6c5a1485322"},"schema_version":"1.0","source":{"id":"1012.4434","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.4434","created_at":"2026-05-18T02:04:21Z"},{"alias_kind":"arxiv_version","alias_value":"1012.4434v1","created_at":"2026-05-18T02:04:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.4434","created_at":"2026-05-18T02:04:21Z"},{"alias_kind":"pith_short_12","alias_value":"EO7XOASE6VEC","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"EO7XOASE6VECS3DO","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"EO7XOASE","created_at":"2026-05-18T12:26:06Z"}],"graph_snapshots":[{"event_id":"sha256:c32db0584513c1f9bbf2a3599a02931c0ebea9629b02622140c143ff2721ec29","target":"graph","created_at":"2026-05-18T02:04:21Z","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":"We use a parametric down-conversion source pumped by a short coherence-length continuous-wave (CW) diode laser to perform two-photon interferometry in an intermediate regime between the more familiar Franson-type experiments with a long coherence-length pump laser, and the short pulsed pump \"time-bin\" experiments pioneered by Gisin's group. The use of a time-bin-like Mach-Zehnder interferometer in the CW pumping beam induces coherence between certain two-photon amplitudes, while the CW nature of the experiment prevents the elimination of remaining incoherent ones. The experimental results high","authors_text":"J. Liang, S.M. Hendrickson, T.B. Pittman","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-20T18:44:48Z","title":"The role of pump coherence in two-photon interferometry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.4434","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":"sha256:1200ed8d6842c7d0b900dd60917477d00bcdf667ea5243339f8f405706e2cf08","target":"record","created_at":"2026-05-18T02:04:21Z","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":"a0bc23889a8ffceb6dc4169dc23169b2a3ff522ce6319fcb4e0b901d99bf53d8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-20T18:44:48Z","title_canon_sha256":"25dc615fa33d1da7a55ba017a62aa4e5af76b1228427dcd8f90bf6c5a1485322"},"schema_version":"1.0","source":{"id":"1012.4434","kind":"arxiv","version":1}},"canonical_sha256":"23bf770244f548296c6e48d4541021851b1e8dcab5e96ac50127d328c75827d2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"23bf770244f548296c6e48d4541021851b1e8dcab5e96ac50127d328c75827d2","first_computed_at":"2026-05-18T02:04:21.770394Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:21.770394Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+/zFGorwhC8NjRgDpJBDr3BhYHamQKJfxRnDcJrizNDJkGhjdMQdYNjwFM+nH0ADDCAYFqcudympYLTtdcLsAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:21.771126Z","signed_message":"canonical_sha256_bytes"},"source_id":"1012.4434","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1200ed8d6842c7d0b900dd60917477d00bcdf667ea5243339f8f405706e2cf08","sha256:c32db0584513c1f9bbf2a3599a02931c0ebea9629b02622140c143ff2721ec29"],"state_sha256":"1c12e5aa9cecbb3f4f5ba8de84ec144cd342e70b357e87846e09b47644cbb34f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CaHdX0Z6GdOt5GI5yUO9Whp/63/tIfybESnoPMUOKk1isy+6xR46Ad1c1P7OHvfKrtJr5XwuP3GS2jWm+h2nCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T17:12:58.747872Z","bundle_sha256":"4495af4a4cc17b831d47b3f5db00702507b12d13933d7763fa733f30a5e50144"}}