{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:I52ZPZFXJOW3OXXBVSTTPAE2BY","short_pith_number":"pith:I52ZPZFX","canonical_record":{"source":{"id":"2401.05121","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.ET","submitted_at":"2024-01-10T12:37:23Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"a363156a8cc2100d51f434793a2d0f239ac83b65650a579fdf06f12d6a0df1ca","abstract_canon_sha256":"cd149c75849798578e8702840490d24ad63631b9c7f20b3ffb6a8de1947b610b"},"schema_version":"1.0"},"canonical_sha256":"477597e4b74badb75ee1aca737809a0e02b53de76bc55e1c425bfc45add1fceb","source":{"kind":"arxiv","id":"2401.05121","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.05121","created_at":"2026-07-05T07:32:03Z"},{"alias_kind":"arxiv_version","alias_value":"2401.05121v1","created_at":"2026-07-05T07:32:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.05121","created_at":"2026-07-05T07:32:03Z"},{"alias_kind":"pith_short_12","alias_value":"I52ZPZFXJOW3","created_at":"2026-07-05T07:32:03Z"},{"alias_kind":"pith_short_16","alias_value":"I52ZPZFXJOW3OXXB","created_at":"2026-07-05T07:32:03Z"},{"alias_kind":"pith_short_8","alias_value":"I52ZPZFX","created_at":"2026-07-05T07:32:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:I52ZPZFXJOW3OXXBVSTTPAE2BY","target":"record","payload":{"canonical_record":{"source":{"id":"2401.05121","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.ET","submitted_at":"2024-01-10T12:37:23Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"a363156a8cc2100d51f434793a2d0f239ac83b65650a579fdf06f12d6a0df1ca","abstract_canon_sha256":"cd149c75849798578e8702840490d24ad63631b9c7f20b3ffb6a8de1947b610b"},"schema_version":"1.0"},"canonical_sha256":"477597e4b74badb75ee1aca737809a0e02b53de76bc55e1c425bfc45add1fceb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:32:03.355528Z","signature_b64":"7L/GCaP5LW4hWIgcpXIo/UuDmBFs9kpVpjyjbL0SPIX+zvB8CmYd92ooTFj9AnIo9qu874yH/BNgSlrD3EJYBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"477597e4b74badb75ee1aca737809a0e02b53de76bc55e1c425bfc45add1fceb","last_reissued_at":"2026-07-05T07:32:03.355106Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:32:03.355106Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2401.05121","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":"2026-07-05T07:32:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gwWOizdu+oKYp1hKLBhqkw5+cVGApZiImjMBHK6wUFvdt3eIJoZAFJbt2vTbS3hjG0bcVl8gUeIvMj6JKwxrAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T23:49:34.311937Z"},"content_sha256":"8cf769629ab82a30cd23f74b6a85ebae064a9245ee9e41db182d30f5174d3f73","schema_version":"1.0","event_id":"sha256:8cf769629ab82a30cd23f74b6a85ebae064a9245ee9e41db182d30f5174d3f73"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:I52ZPZFXJOW3OXXBVSTTPAE2BY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Photonics for Sustainable Computing","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.LG"],"primary_cat":"cs.ET","authors_text":"Ajay Joshi, Darius Bunandar, Farbin Fayza, Satyavolu Papa Rao, Udit Gupta","submitted_at":"2024-01-10T12:37:23Z","abstract_excerpt":"Photonic integrated circuits are finding use in a variety of applications including optical transceivers, LIDAR, bio-sensing, photonic quantum computing, and Machine Learning (ML). In particular, with the exponentially increasing sizes of ML models, photonics-based accelerators are getting special attention as a sustainable solution because they can perform ML inferences with multiple orders of magnitude higher energy efficiency than CMOS-based accelerators. However, recent studies have shown that hardware manufacturing and infrastructure contribute significantly to the carbon footprint of com"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.05121","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/2401.05121/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":"2026-07-05T07:32:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SRoElrqe68vp+D3Gsy/0aiu2Xmr9b4rDQPsfJfco7akRBc9hfU01YMl4ejse2sGcVb1PGeZ82EAl46qd4WFqCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T23:49:34.312437Z"},"content_sha256":"f60f8cc8442efa2912413cde28a74c832168895caf3ee2f4eff2aac7f13384da","schema_version":"1.0","event_id":"sha256:f60f8cc8442efa2912413cde28a74c832168895caf3ee2f4eff2aac7f13384da"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I52ZPZFXJOW3OXXBVSTTPAE2BY/bundle.json","state_url":"https://pith.science/pith/I52ZPZFXJOW3OXXBVSTTPAE2BY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I52ZPZFXJOW3OXXBVSTTPAE2BY/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":"2026-08-07T23:49:34Z","links":{"resolver":"https://pith.science/pith/I52ZPZFXJOW3OXXBVSTTPAE2BY","bundle":"https://pith.science/pith/I52ZPZFXJOW3OXXBVSTTPAE2BY/bundle.json","state":"https://pith.science/pith/I52ZPZFXJOW3OXXBVSTTPAE2BY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I52ZPZFXJOW3OXXBVSTTPAE2BY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:I52ZPZFXJOW3OXXBVSTTPAE2BY","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":"cd149c75849798578e8702840490d24ad63631b9c7f20b3ffb6a8de1947b610b","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.ET","submitted_at":"2024-01-10T12:37:23Z","title_canon_sha256":"a363156a8cc2100d51f434793a2d0f239ac83b65650a579fdf06f12d6a0df1ca"},"schema_version":"1.0","source":{"id":"2401.05121","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.05121","created_at":"2026-07-05T07:32:03Z"},{"alias_kind":"arxiv_version","alias_value":"2401.05121v1","created_at":"2026-07-05T07:32:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.05121","created_at":"2026-07-05T07:32:03Z"},{"alias_kind":"pith_short_12","alias_value":"I52ZPZFXJOW3","created_at":"2026-07-05T07:32:03Z"},{"alias_kind":"pith_short_16","alias_value":"I52ZPZFXJOW3OXXB","created_at":"2026-07-05T07:32:03Z"},{"alias_kind":"pith_short_8","alias_value":"I52ZPZFX","created_at":"2026-07-05T07:32:03Z"}],"graph_snapshots":[{"event_id":"sha256:f60f8cc8442efa2912413cde28a74c832168895caf3ee2f4eff2aac7f13384da","target":"graph","created_at":"2026-07-05T07:32:03Z","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/2401.05121/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Photonic integrated circuits are finding use in a variety of applications including optical transceivers, LIDAR, bio-sensing, photonic quantum computing, and Machine Learning (ML). In particular, with the exponentially increasing sizes of ML models, photonics-based accelerators are getting special attention as a sustainable solution because they can perform ML inferences with multiple orders of magnitude higher energy efficiency than CMOS-based accelerators. However, recent studies have shown that hardware manufacturing and infrastructure contribute significantly to the carbon footprint of com","authors_text":"Ajay Joshi, Darius Bunandar, Farbin Fayza, Satyavolu Papa Rao, Udit Gupta","cross_cats":["cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.ET","submitted_at":"2024-01-10T12:37:23Z","title":"Photonics for Sustainable Computing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.05121","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":"sha256:8cf769629ab82a30cd23f74b6a85ebae064a9245ee9e41db182d30f5174d3f73","target":"record","created_at":"2026-07-05T07:32:03Z","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":"cd149c75849798578e8702840490d24ad63631b9c7f20b3ffb6a8de1947b610b","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.ET","submitted_at":"2024-01-10T12:37:23Z","title_canon_sha256":"a363156a8cc2100d51f434793a2d0f239ac83b65650a579fdf06f12d6a0df1ca"},"schema_version":"1.0","source":{"id":"2401.05121","kind":"arxiv","version":1}},"canonical_sha256":"477597e4b74badb75ee1aca737809a0e02b53de76bc55e1c425bfc45add1fceb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"477597e4b74badb75ee1aca737809a0e02b53de76bc55e1c425bfc45add1fceb","first_computed_at":"2026-07-05T07:32:03.355106Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:32:03.355106Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7L/GCaP5LW4hWIgcpXIo/UuDmBFs9kpVpjyjbL0SPIX+zvB8CmYd92ooTFj9AnIo9qu874yH/BNgSlrD3EJYBw==","signature_status":"signed_v1","signed_at":"2026-07-05T07:32:03.355528Z","signed_message":"canonical_sha256_bytes"},"source_id":"2401.05121","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8cf769629ab82a30cd23f74b6a85ebae064a9245ee9e41db182d30f5174d3f73","sha256:f60f8cc8442efa2912413cde28a74c832168895caf3ee2f4eff2aac7f13384da"],"state_sha256":"902065f3fcdb7b628ee4297defb310e70cfc0ad1bf10c73ead048ad056997f98"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jH61zSTt1BislL4IrrOaeChhvPZbk86eXbLFxyl3y5vOXDrrDlN8W+Fj51hG6GNAWF/q4xtvtKA3pQACMaUiBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T23:49:34.317957Z","bundle_sha256":"b028524885da75abf3d8d305691e83cfa408fc365395d72dc2fb7df794961bdb"}}