{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:IRWZDUAAS353GEBVXYCLC62Z3E","short_pith_number":"pith:IRWZDUAA","canonical_record":{"source":{"id":"1709.01898","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-09-06T17:06:45Z","cross_cats_sorted":["physics.ins-det","physics.optics"],"title_canon_sha256":"1d27ae1db6ef7fc8e55c4efdf6d9dbb4a71647aeaf3ef5b4422935cd47c9489f","abstract_canon_sha256":"91c8090a9793a44884b522e098368fc7c827c47780101a4ed252bb3f66d5de14"},"schema_version":"1.0"},"canonical_sha256":"446d91d00096fbb31035be04b17b59d92875223cf0764bb3f89ce237e40c6403","source":{"kind":"arxiv","id":"1709.01898","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.01898","created_at":"2026-05-18T00:35:50Z"},{"alias_kind":"arxiv_version","alias_value":"1709.01898v1","created_at":"2026-05-18T00:35:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.01898","created_at":"2026-05-18T00:35:50Z"},{"alias_kind":"pith_short_12","alias_value":"IRWZDUAAS353","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"IRWZDUAAS353GEBV","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"IRWZDUAA","created_at":"2026-05-18T12:31:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:IRWZDUAAS353GEBVXYCLC62Z3E","target":"record","payload":{"canonical_record":{"source":{"id":"1709.01898","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-09-06T17:06:45Z","cross_cats_sorted":["physics.ins-det","physics.optics"],"title_canon_sha256":"1d27ae1db6ef7fc8e55c4efdf6d9dbb4a71647aeaf3ef5b4422935cd47c9489f","abstract_canon_sha256":"91c8090a9793a44884b522e098368fc7c827c47780101a4ed252bb3f66d5de14"},"schema_version":"1.0"},"canonical_sha256":"446d91d00096fbb31035be04b17b59d92875223cf0764bb3f89ce237e40c6403","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:35:50.806972Z","signature_b64":"9+wtgZwIcY14h3gTcLOrUKUWqJ+0tN0WOL/owOyg9oMPqnfPXXcuFi1X1ObdyWSLGKtcXNmhvA1I4RVRqNDPCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"446d91d00096fbb31035be04b17b59d92875223cf0764bb3f89ce237e40c6403","last_reissued_at":"2026-05-18T00:35:50.805771Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:35:50.805771Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.01898","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":"2026-05-18T00:35:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"maT0OVqM3h107FQdSWqA56vhJ592lRDdYiuPfPL7LbhdBmGsd67i3h1ahAd9+NALHI/k60AxAPfwYtWOguekAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T12:04:30.871981Z"},"content_sha256":"82177e0b65f764851bc6efd6e6d4623c10c339a6fdad85d0c3eaea6f174bbec1","schema_version":"1.0","event_id":"sha256:82177e0b65f764851bc6efd6e6d4623c10c339a6fdad85d0c3eaea6f174bbec1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:IRWZDUAAS353GEBVXYCLC62Z3E","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Room temperature 9 $\\mu$m photodetectors and GHz heterodyne receivers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det","physics.optics"],"primary_cat":"physics.app-ph","authors_text":"A. Giles Davies, Alireza Mottaghizadeh, Allegra Calabrese, Angela Vasanelli, Azzurra Bigioli, Carlo Sirtori, Daniele Palaferri, Djamal Gacemi, Edmund H. Linfield, Filippos Kapsalidis, J\\'er\\^ome Faist, Lianhe Li, Mattias Beck, Yanko Todorov","submitted_at":"2017-09-06T17:06:45Z","abstract_excerpt":"Room temperature operation is mandatory for any optoelectronics technology which aims to provide low-cost compact systems for widespread applications. In recent years, an important technological effort in this direction has been made in bolometric detection for thermal imaging$^1$, which has delivered relatively high sensitivity and video rate performance ($\\sim$ 60 Hz). However, room temperature operation is still beyond reach for semiconductor photodetectors in the 8-12 $\\mu$m wavelength band$^2$, and all developments for applications such as imaging, environmental remote sensing and laser-b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.01898","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":"2026-05-18T00:35:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rOEpmL6IEyM8vSW5FNfZmqmYcDrv/TUM9w3yk2zYIYmUk1YLhriZ1022Ta/2/zpRDIf3Q7xcvWIpZ7OjGZqHBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T12:04:30.872650Z"},"content_sha256":"52ceef41ccffde20cbd75f5746c464fc777d16063c8d69f42f49ecd25514d6bc","schema_version":"1.0","event_id":"sha256:52ceef41ccffde20cbd75f5746c464fc777d16063c8d69f42f49ecd25514d6bc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IRWZDUAAS353GEBVXYCLC62Z3E/bundle.json","state_url":"https://pith.science/pith/IRWZDUAAS353GEBVXYCLC62Z3E/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IRWZDUAAS353GEBVXYCLC62Z3E/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":"2026-05-30T12:04:30Z","links":{"resolver":"https://pith.science/pith/IRWZDUAAS353GEBVXYCLC62Z3E","bundle":"https://pith.science/pith/IRWZDUAAS353GEBVXYCLC62Z3E/bundle.json","state":"https://pith.science/pith/IRWZDUAAS353GEBVXYCLC62Z3E/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IRWZDUAAS353GEBVXYCLC62Z3E/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:IRWZDUAAS353GEBVXYCLC62Z3E","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":"91c8090a9793a44884b522e098368fc7c827c47780101a4ed252bb3f66d5de14","cross_cats_sorted":["physics.ins-det","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-09-06T17:06:45Z","title_canon_sha256":"1d27ae1db6ef7fc8e55c4efdf6d9dbb4a71647aeaf3ef5b4422935cd47c9489f"},"schema_version":"1.0","source":{"id":"1709.01898","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.01898","created_at":"2026-05-18T00:35:50Z"},{"alias_kind":"arxiv_version","alias_value":"1709.01898v1","created_at":"2026-05-18T00:35:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.01898","created_at":"2026-05-18T00:35:50Z"},{"alias_kind":"pith_short_12","alias_value":"IRWZDUAAS353","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"IRWZDUAAS353GEBV","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"IRWZDUAA","created_at":"2026-05-18T12:31:21Z"}],"graph_snapshots":[{"event_id":"sha256:52ceef41ccffde20cbd75f5746c464fc777d16063c8d69f42f49ecd25514d6bc","target":"graph","created_at":"2026-05-18T00:35:50Z","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":"Room temperature operation is mandatory for any optoelectronics technology which aims to provide low-cost compact systems for widespread applications. In recent years, an important technological effort in this direction has been made in bolometric detection for thermal imaging$^1$, which has delivered relatively high sensitivity and video rate performance ($\\sim$ 60 Hz). However, room temperature operation is still beyond reach for semiconductor photodetectors in the 8-12 $\\mu$m wavelength band$^2$, and all developments for applications such as imaging, environmental remote sensing and laser-b","authors_text":"A. Giles Davies, Alireza Mottaghizadeh, Allegra Calabrese, Angela Vasanelli, Azzurra Bigioli, Carlo Sirtori, Daniele Palaferri, Djamal Gacemi, Edmund H. Linfield, Filippos Kapsalidis, J\\'er\\^ome Faist, Lianhe Li, Mattias Beck, Yanko Todorov","cross_cats":["physics.ins-det","physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-09-06T17:06:45Z","title":"Room temperature 9 $\\mu$m photodetectors and GHz heterodyne receivers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.01898","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":"sha256:82177e0b65f764851bc6efd6e6d4623c10c339a6fdad85d0c3eaea6f174bbec1","target":"record","created_at":"2026-05-18T00:35:50Z","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":"91c8090a9793a44884b522e098368fc7c827c47780101a4ed252bb3f66d5de14","cross_cats_sorted":["physics.ins-det","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-09-06T17:06:45Z","title_canon_sha256":"1d27ae1db6ef7fc8e55c4efdf6d9dbb4a71647aeaf3ef5b4422935cd47c9489f"},"schema_version":"1.0","source":{"id":"1709.01898","kind":"arxiv","version":1}},"canonical_sha256":"446d91d00096fbb31035be04b17b59d92875223cf0764bb3f89ce237e40c6403","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"446d91d00096fbb31035be04b17b59d92875223cf0764bb3f89ce237e40c6403","first_computed_at":"2026-05-18T00:35:50.805771Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:35:50.805771Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9+wtgZwIcY14h3gTcLOrUKUWqJ+0tN0WOL/owOyg9oMPqnfPXXcuFi1X1ObdyWSLGKtcXNmhvA1I4RVRqNDPCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:35:50.806972Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.01898","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:82177e0b65f764851bc6efd6e6d4623c10c339a6fdad85d0c3eaea6f174bbec1","sha256:52ceef41ccffde20cbd75f5746c464fc777d16063c8d69f42f49ecd25514d6bc"],"state_sha256":"af8152b071c277f72ad1ab88cdc3e36bdbe951e79586eb6f689f4b567c6272ae"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QscNlzQRJq+KGgx/7xDV2pQsVpGkco+nLxjBXHnW+L8PCXgz6HT+QCpjlPSNgPix2fPf6GO50UI7bbLtsuE1AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T12:04:30.875884Z","bundle_sha256":"919d5a2b36be9055ae73e45e4e1bfe520a7e549aa9bdec60591c967161dfbc54"}}