{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:Q2CW7X3YVVJT7WCE2JNJYMQJ25","short_pith_number":"pith:Q2CW7X3Y","canonical_record":{"source":{"id":"1706.04300","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-06-14T02:39:51Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"3b8646a794db3ae344d067bb95ad8e39386d5214019593677b6fefc2c9fe202e","abstract_canon_sha256":"3c5f5a239112d19bfef07f451ca6cc2230f6759adf9ad594e20df8b6bd9e5261"},"schema_version":"1.0"},"canonical_sha256":"86856fdf78ad533fd844d25a9c3209d75fc1b2ce5afff1812d63aa4d1f031ad7","source":{"kind":"arxiv","id":"1706.04300","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.04300","created_at":"2026-05-18T00:42:23Z"},{"alias_kind":"arxiv_version","alias_value":"1706.04300v1","created_at":"2026-05-18T00:42:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.04300","created_at":"2026-05-18T00:42:23Z"},{"alias_kind":"pith_short_12","alias_value":"Q2CW7X3YVVJT","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_16","alias_value":"Q2CW7X3YVVJT7WCE","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_8","alias_value":"Q2CW7X3Y","created_at":"2026-05-18T12:31:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:Q2CW7X3YVVJT7WCE2JNJYMQJ25","target":"record","payload":{"canonical_record":{"source":{"id":"1706.04300","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-06-14T02:39:51Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"3b8646a794db3ae344d067bb95ad8e39386d5214019593677b6fefc2c9fe202e","abstract_canon_sha256":"3c5f5a239112d19bfef07f451ca6cc2230f6759adf9ad594e20df8b6bd9e5261"},"schema_version":"1.0"},"canonical_sha256":"86856fdf78ad533fd844d25a9c3209d75fc1b2ce5afff1812d63aa4d1f031ad7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:42:23.051426Z","signature_b64":"kkP0BUNTCGHKvJE0iZrOO7ULvEQOaG2SX0JBwcxAAjACDcqbSG3qe1eCjLI17RpJbwoSC8w1ZaRhTRkurmVHDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"86856fdf78ad533fd844d25a9c3209d75fc1b2ce5afff1812d63aa4d1f031ad7","last_reissued_at":"2026-05-18T00:42:23.050842Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:42:23.050842Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1706.04300","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":"2026-05-18T00:42:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jM2v1zpaWcgjYlXTjPp/xpl1+U+B4qfkO13Rv9GDilFMSy1wjIIcVlRaOwJLdv3bJ1fdzzIxSttCkB3Dtpi7DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T19:50:14.841723Z"},"content_sha256":"c69308ef71c7032516b52457d46288fbf052db569b4b47952d7a3af8a8a1180a","schema_version":"1.0","event_id":"sha256:c69308ef71c7032516b52457d46288fbf052db569b4b47952d7a3af8a8a1180a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:Q2CW7X3YVVJT7WCE2JNJYMQJ25","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chip-based photon quantum state sources using nonlinear optics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.optics","authors_text":"Benjamin J. Eggleton, Chunle Xiong, Daniele Bajoni, David J. Moss, Lucia Caspani, Marco Liscidini, Matteo Galli, Roberto Morandotti","submitted_at":"2017-06-14T02:39:51Z","abstract_excerpt":"The ability to generate complex optical photon states involving entanglement between multiple optical modes is not only critical to advancing our understanding of quantum mechanics but will play a key role in generating many applications in quantum technologies. These include quantum communications, computation, imaging, microscopy and many other novel technologies that are constantly being proposed. However, approaches to generating parallel multiple, customisable bi- and multi-entangled quantum bits (qubits) on a chip are still in the early stages of development. Here, we review recent devel"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.04300","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":"2026-05-18T00:42:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yQbp2w1a12c6Y/vmVpENc6LO5x20TIpjYjRXFKm4F1RE4Y73lpCt2Ottmlgy8HgWP/GEN7c+TBuMVE0LPbUDDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T19:50:14.842523Z"},"content_sha256":"22fadb5160a23ab31fe2b7187d8f20f8bd0a0a6cf75ae19d992d59e52d9cf777","schema_version":"1.0","event_id":"sha256:22fadb5160a23ab31fe2b7187d8f20f8bd0a0a6cf75ae19d992d59e52d9cf777"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q2CW7X3YVVJT7WCE2JNJYMQJ25/bundle.json","state_url":"https://pith.science/pith/Q2CW7X3YVVJT7WCE2JNJYMQJ25/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q2CW7X3YVVJT7WCE2JNJYMQJ25/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":"2026-05-31T19:50:14Z","links":{"resolver":"https://pith.science/pith/Q2CW7X3YVVJT7WCE2JNJYMQJ25","bundle":"https://pith.science/pith/Q2CW7X3YVVJT7WCE2JNJYMQJ25/bundle.json","state":"https://pith.science/pith/Q2CW7X3YVVJT7WCE2JNJYMQJ25/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q2CW7X3YVVJT7WCE2JNJYMQJ25/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:Q2CW7X3YVVJT7WCE2JNJYMQJ25","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":"3c5f5a239112d19bfef07f451ca6cc2230f6759adf9ad594e20df8b6bd9e5261","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-06-14T02:39:51Z","title_canon_sha256":"3b8646a794db3ae344d067bb95ad8e39386d5214019593677b6fefc2c9fe202e"},"schema_version":"1.0","source":{"id":"1706.04300","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.04300","created_at":"2026-05-18T00:42:23Z"},{"alias_kind":"arxiv_version","alias_value":"1706.04300v1","created_at":"2026-05-18T00:42:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.04300","created_at":"2026-05-18T00:42:23Z"},{"alias_kind":"pith_short_12","alias_value":"Q2CW7X3YVVJT","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_16","alias_value":"Q2CW7X3YVVJT7WCE","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_8","alias_value":"Q2CW7X3Y","created_at":"2026-05-18T12:31:37Z"}],"graph_snapshots":[{"event_id":"sha256:22fadb5160a23ab31fe2b7187d8f20f8bd0a0a6cf75ae19d992d59e52d9cf777","target":"graph","created_at":"2026-05-18T00:42:23Z","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":"The ability to generate complex optical photon states involving entanglement between multiple optical modes is not only critical to advancing our understanding of quantum mechanics but will play a key role in generating many applications in quantum technologies. These include quantum communications, computation, imaging, microscopy and many other novel technologies that are constantly being proposed. However, approaches to generating parallel multiple, customisable bi- and multi-entangled quantum bits (qubits) on a chip are still in the early stages of development. Here, we review recent devel","authors_text":"Benjamin J. Eggleton, Chunle Xiong, Daniele Bajoni, David J. Moss, Lucia Caspani, Marco Liscidini, Matteo Galli, Roberto Morandotti","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-06-14T02:39:51Z","title":"Chip-based photon quantum state sources using nonlinear optics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.04300","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:c69308ef71c7032516b52457d46288fbf052db569b4b47952d7a3af8a8a1180a","target":"record","created_at":"2026-05-18T00:42:23Z","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":"3c5f5a239112d19bfef07f451ca6cc2230f6759adf9ad594e20df8b6bd9e5261","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-06-14T02:39:51Z","title_canon_sha256":"3b8646a794db3ae344d067bb95ad8e39386d5214019593677b6fefc2c9fe202e"},"schema_version":"1.0","source":{"id":"1706.04300","kind":"arxiv","version":1}},"canonical_sha256":"86856fdf78ad533fd844d25a9c3209d75fc1b2ce5afff1812d63aa4d1f031ad7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"86856fdf78ad533fd844d25a9c3209d75fc1b2ce5afff1812d63aa4d1f031ad7","first_computed_at":"2026-05-18T00:42:23.050842Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:42:23.050842Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kkP0BUNTCGHKvJE0iZrOO7ULvEQOaG2SX0JBwcxAAjACDcqbSG3qe1eCjLI17RpJbwoSC8w1ZaRhTRkurmVHDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:42:23.051426Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.04300","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c69308ef71c7032516b52457d46288fbf052db569b4b47952d7a3af8a8a1180a","sha256:22fadb5160a23ab31fe2b7187d8f20f8bd0a0a6cf75ae19d992d59e52d9cf777"],"state_sha256":"5d27a8e0d11898a57e580c67f7fba7a81385d2abb699e513102dfb952ed8105a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m0lSYVkQkxTngvkg2dLEi/jI54mDxItbGeKvEtDGN6kJl5oCdctfcx5BY4ETWtAU6m2xTJT1aBWmgmz70R29BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T19:50:14.846200Z","bundle_sha256":"5332005d1e3af43d3145f033b244d26deebf1814ad920ea6278e0244481053d9"}}