{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:ZI7GAVOSJL6STOATJJ74KYDWPP","short_pith_number":"pith:ZI7GAVOS","canonical_record":{"source":{"id":"2607.26950","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-07-29T14:17:46Z","cross_cats_sorted":[],"title_canon_sha256":"0158743a4626073eab08bf0dda80769da3fed6e546bb10590e506dc613c45e84","abstract_canon_sha256":"5af12adb0ad56af42ddf1ee9761f4ff9544e3464675e324d5e4ad2d73c0e3ed2"},"schema_version":"1.0"},"canonical_sha256":"ca3e6055d24afd29b8134a7fc560767bedfd7efcb7199cf43b170c58b5939381","source":{"kind":"arxiv","id":"2607.26950","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.26950","created_at":"2026-07-30T01:23:08Z"},{"alias_kind":"arxiv_version","alias_value":"2607.26950v1","created_at":"2026-07-30T01:23:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.26950","created_at":"2026-07-30T01:23:08Z"},{"alias_kind":"pith_short_12","alias_value":"ZI7GAVOSJL6S","created_at":"2026-07-30T01:23:08Z"},{"alias_kind":"pith_short_16","alias_value":"ZI7GAVOSJL6STOAT","created_at":"2026-07-30T01:23:08Z"},{"alias_kind":"pith_short_8","alias_value":"ZI7GAVOS","created_at":"2026-07-30T01:23:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:ZI7GAVOSJL6STOATJJ74KYDWPP","target":"record","payload":{"canonical_record":{"source":{"id":"2607.26950","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-07-29T14:17:46Z","cross_cats_sorted":[],"title_canon_sha256":"0158743a4626073eab08bf0dda80769da3fed6e546bb10590e506dc613c45e84","abstract_canon_sha256":"5af12adb0ad56af42ddf1ee9761f4ff9544e3464675e324d5e4ad2d73c0e3ed2"},"schema_version":"1.0"},"canonical_sha256":"ca3e6055d24afd29b8134a7fc560767bedfd7efcb7199cf43b170c58b5939381","receipt":{"kind":"pith_receipt","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ca3e6055d24afd29b8134a7fc560767bedfd7efcb7199cf43b170c58b5939381","last_reissued_at":"2026-07-30T01:23:08.603285Z","signature_status":"unsigned_v0","first_computed_at":"2026-07-30T01:23:08.603285Z"},"source_kind":"arxiv","source_id":"2607.26950","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":"2026-07-30T01:23:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ArfZ4kxnzX+AtuJ7yQ/I0X+9OI8GHIHuhM7yIRXS3NdZAbf8Yk+P53f/PxQ7prii/e/YCI2/y1yV1+wdb/m5BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T00:26:35.908320Z"},"content_sha256":"731bd068969055e70696506c6350011af26a30df6e451fcf0558011c7f6f14a6","schema_version":"1.0","event_id":"sha256:731bd068969055e70696506c6350011af26a30df6e451fcf0558011c7f6f14a6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:ZI7GAVOSJL6STOATJJ74KYDWPP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spiking Photonic Neurons Based on Two-Section InP Quantum-Well Lasers Integrated on Silicon","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Adonis Bogris, Benoit Charbonnier, Charis Mesaritakis, Menelaos Skontranis, Olivier Girard","submitted_at":"2026-07-29T14:17:46Z","abstract_excerpt":"In this work we experimentally investigate the spiking dynamics of two-section InP quantum-well lasers monolithically integrated on silicon. By appropriately tuning the electrical bias conditions, we realize multiple neuronal-like operating regimes, such as integrate-and-fire and resonate-and-fire, highlighting the device's versatility as a high-speed photonic neuron. A systematic investigation of laser design parameters, including cavity length and gain/saturable absorber ratio, elucidates their impact on spiking-related properties (such as pulse repetition frequency) and traces the operation"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.26950","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/2607.26950/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":"2026-07-30T01:23:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EoJdFZ9K7CtZS4csVo4bzVCqFx9v0X/DinoeUiUJHf0ANQthk9pIIxOVLiU/Yz+HP6E99qNq3Ovi983/iyMyCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T00:26:35.909204Z"},"content_sha256":"cb8445374fe3ad41e06c5f95721042df18fe267c7b44487cfc84ec367efadb4f","schema_version":"1.0","event_id":"sha256:cb8445374fe3ad41e06c5f95721042df18fe267c7b44487cfc84ec367efadb4f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZI7GAVOSJL6STOATJJ74KYDWPP/bundle.json","state_url":"https://pith.science/pith/ZI7GAVOSJL6STOATJJ74KYDWPP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZI7GAVOSJL6STOATJJ74KYDWPP/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":"2026-08-13T00:26:35Z","links":{"resolver":"https://pith.science/pith/ZI7GAVOSJL6STOATJJ74KYDWPP","bundle":"https://pith.science/pith/ZI7GAVOSJL6STOATJJ74KYDWPP/bundle.json","state":"https://pith.science/pith/ZI7GAVOSJL6STOATJJ74KYDWPP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZI7GAVOSJL6STOATJJ74KYDWPP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:ZI7GAVOSJL6STOATJJ74KYDWPP","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":"5af12adb0ad56af42ddf1ee9761f4ff9544e3464675e324d5e4ad2d73c0e3ed2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-07-29T14:17:46Z","title_canon_sha256":"0158743a4626073eab08bf0dda80769da3fed6e546bb10590e506dc613c45e84"},"schema_version":"1.0","source":{"id":"2607.26950","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.26950","created_at":"2026-07-30T01:23:08Z"},{"alias_kind":"arxiv_version","alias_value":"2607.26950v1","created_at":"2026-07-30T01:23:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.26950","created_at":"2026-07-30T01:23:08Z"},{"alias_kind":"pith_short_12","alias_value":"ZI7GAVOSJL6S","created_at":"2026-07-30T01:23:08Z"},{"alias_kind":"pith_short_16","alias_value":"ZI7GAVOSJL6STOAT","created_at":"2026-07-30T01:23:08Z"},{"alias_kind":"pith_short_8","alias_value":"ZI7GAVOS","created_at":"2026-07-30T01:23:08Z"}],"graph_snapshots":[{"event_id":"sha256:cb8445374fe3ad41e06c5f95721042df18fe267c7b44487cfc84ec367efadb4f","target":"graph","created_at":"2026-07-30T01:23:08Z","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/2607.26950/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this work we experimentally investigate the spiking dynamics of two-section InP quantum-well lasers monolithically integrated on silicon. By appropriately tuning the electrical bias conditions, we realize multiple neuronal-like operating regimes, such as integrate-and-fire and resonate-and-fire, highlighting the device's versatility as a high-speed photonic neuron. A systematic investigation of laser design parameters, including cavity length and gain/saturable absorber ratio, elucidates their impact on spiking-related properties (such as pulse repetition frequency) and traces the operation","authors_text":"Adonis Bogris, Benoit Charbonnier, Charis Mesaritakis, Menelaos Skontranis, Olivier Girard","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-07-29T14:17:46Z","title":"Spiking Photonic Neurons Based on Two-Section InP Quantum-Well Lasers Integrated on Silicon"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.26950","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":"sha256:731bd068969055e70696506c6350011af26a30df6e451fcf0558011c7f6f14a6","target":"record","created_at":"2026-07-30T01:23:08Z","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":"5af12adb0ad56af42ddf1ee9761f4ff9544e3464675e324d5e4ad2d73c0e3ed2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-07-29T14:17:46Z","title_canon_sha256":"0158743a4626073eab08bf0dda80769da3fed6e546bb10590e506dc613c45e84"},"schema_version":"1.0","source":{"id":"2607.26950","kind":"arxiv","version":1}},"canonical_sha256":"ca3e6055d24afd29b8134a7fc560767bedfd7efcb7199cf43b170c58b5939381","receipt":{"builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ca3e6055d24afd29b8134a7fc560767bedfd7efcb7199cf43b170c58b5939381","first_computed_at":"2026-07-30T01:23:08.603285Z","kind":"pith_receipt","last_reissued_at":"2026-07-30T01:23:08.603285Z","receipt_version":"0.3","signature_status":"unsigned_v0"},"source_id":"2607.26950","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:731bd068969055e70696506c6350011af26a30df6e451fcf0558011c7f6f14a6","sha256:cb8445374fe3ad41e06c5f95721042df18fe267c7b44487cfc84ec367efadb4f"],"state_sha256":"14a8964f5cd608f9e864f1b17a06e95ef96f7665f2c582d4beca93e70705f792"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A8VI2/6vGTuw4jFWDlfZVy/x5UAs0xcxmBH9KPoAwjldFEBctZxDwSzKwDqf0i/oxTV6clixe/Ayx4QQ/RjtDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T00:26:35.916521Z","bundle_sha256":"9b74d675e357b29ea13cda65d5cd9ce33ef5eda278e639227d52509ba6d54bdf"}}