{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:EERS3ZEBITGRJ6I2VDNWFDTKCW","short_pith_number":"pith:EERS3ZEB","canonical_record":{"source":{"id":"1111.5393","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-11-23T03:13:50Z","cross_cats_sorted":[],"title_canon_sha256":"4210c012472d1e63793bf95127584e6730b7387c329d77cc7f633f037c9e8601","abstract_canon_sha256":"02c8bd9c3ae0df4c5e1b2555bb952c67b48bef8dc32c5ba13b528e0914e1187b"},"schema_version":"1.0"},"canonical_sha256":"21232de48144cd14f91aa8db628e6a15a4eeb805720ce9b1f3d30c700606b541","source":{"kind":"arxiv","id":"1111.5393","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.5393","created_at":"2026-05-18T01:59:26Z"},{"alias_kind":"arxiv_version","alias_value":"1111.5393v1","created_at":"2026-05-18T01:59:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.5393","created_at":"2026-05-18T01:59:26Z"},{"alias_kind":"pith_short_12","alias_value":"EERS3ZEBITGR","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"EERS3ZEBITGRJ6I2","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"EERS3ZEB","created_at":"2026-05-18T12:26:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:EERS3ZEBITGRJ6I2VDNWFDTKCW","target":"record","payload":{"canonical_record":{"source":{"id":"1111.5393","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-11-23T03:13:50Z","cross_cats_sorted":[],"title_canon_sha256":"4210c012472d1e63793bf95127584e6730b7387c329d77cc7f633f037c9e8601","abstract_canon_sha256":"02c8bd9c3ae0df4c5e1b2555bb952c67b48bef8dc32c5ba13b528e0914e1187b"},"schema_version":"1.0"},"canonical_sha256":"21232de48144cd14f91aa8db628e6a15a4eeb805720ce9b1f3d30c700606b541","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:59:26.512313Z","signature_b64":"8zHp+HhA98EgW1TKUZXbx0OoWaPMECQTwwm2CwO53oaQVUwNGgJdyCFCo1/83bed+sh8GezLG7mgP0IS663NAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"21232de48144cd14f91aa8db628e6a15a4eeb805720ce9b1f3d30c700606b541","last_reissued_at":"2026-05-18T01:59:26.511861Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:59:26.511861Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1111.5393","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":"2026-05-18T01:59:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9biBc3jqy8MH4HAAuRri2YBEB9jHAEHXbNBQDpeEX2zEGIiZVAUSo5m9DC6xtG57EZ9KpAKgUkEik434fhqdCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T15:50:58.486284Z"},"content_sha256":"94b98aeb45d96040a32487f5302102bcdfe3ba3f2a11d0d33572d810dc3fb716","schema_version":"1.0","event_id":"sha256:94b98aeb45d96040a32487f5302102bcdfe3ba3f2a11d0d33572d810dc3fb716"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:EERS3ZEBITGRJ6I2VDNWFDTKCW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ultra-broadband Light Absorption by a Sawtooth Anisotropic Metamaterial Slab","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Hyungjin Ma, Jun Xu, Kin Hung Fung, Nicholas X. Fang, Sailing He, Yanxia Cui, Yi Jin","submitted_at":"2011-11-23T03:13:50Z","abstract_excerpt":"We present an ultra broadband thin-film infrared absorber made of saw-toothed anisotropic metamaterial. Absorbtivity of higher than 95% at normal incidence is supported in a wide range of frequencies, where the full absorption width at half maximum is about 86%. Such property is retained well at a very wide range of incident angles too. Light of shorter wavelengths are harvested at upper parts of the sawteeth of smaller widths, while light of longer wavelengths are trapped at lower parts of larger tooth widths. This phenomenon is explained by the slowlight modes in anisotropic metamaterial wav"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.5393","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":"2026-05-18T01:59:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eyp9qZfXB9UlxqvnOKMsCPJwVOYExIUmt+91lwWKcfyYHRtlCj28cEEWmdjIHxfppO7ioIpRHGChgbz7m97SDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T15:50:58.486658Z"},"content_sha256":"ab77dd3c89f3f61de5b8cfba3d423c58fe798473497ab612a22c402621343175","schema_version":"1.0","event_id":"sha256:ab77dd3c89f3f61de5b8cfba3d423c58fe798473497ab612a22c402621343175"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EERS3ZEBITGRJ6I2VDNWFDTKCW/bundle.json","state_url":"https://pith.science/pith/EERS3ZEBITGRJ6I2VDNWFDTKCW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EERS3ZEBITGRJ6I2VDNWFDTKCW/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":"2026-05-30T15:50:58Z","links":{"resolver":"https://pith.science/pith/EERS3ZEBITGRJ6I2VDNWFDTKCW","bundle":"https://pith.science/pith/EERS3ZEBITGRJ6I2VDNWFDTKCW/bundle.json","state":"https://pith.science/pith/EERS3ZEBITGRJ6I2VDNWFDTKCW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EERS3ZEBITGRJ6I2VDNWFDTKCW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:EERS3ZEBITGRJ6I2VDNWFDTKCW","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":"02c8bd9c3ae0df4c5e1b2555bb952c67b48bef8dc32c5ba13b528e0914e1187b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-11-23T03:13:50Z","title_canon_sha256":"4210c012472d1e63793bf95127584e6730b7387c329d77cc7f633f037c9e8601"},"schema_version":"1.0","source":{"id":"1111.5393","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.5393","created_at":"2026-05-18T01:59:26Z"},{"alias_kind":"arxiv_version","alias_value":"1111.5393v1","created_at":"2026-05-18T01:59:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.5393","created_at":"2026-05-18T01:59:26Z"},{"alias_kind":"pith_short_12","alias_value":"EERS3ZEBITGR","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"EERS3ZEBITGRJ6I2","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"EERS3ZEB","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:ab77dd3c89f3f61de5b8cfba3d423c58fe798473497ab612a22c402621343175","target":"graph","created_at":"2026-05-18T01:59:26Z","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 present an ultra broadband thin-film infrared absorber made of saw-toothed anisotropic metamaterial. Absorbtivity of higher than 95% at normal incidence is supported in a wide range of frequencies, where the full absorption width at half maximum is about 86%. Such property is retained well at a very wide range of incident angles too. Light of shorter wavelengths are harvested at upper parts of the sawteeth of smaller widths, while light of longer wavelengths are trapped at lower parts of larger tooth widths. This phenomenon is explained by the slowlight modes in anisotropic metamaterial wav","authors_text":"Hyungjin Ma, Jun Xu, Kin Hung Fung, Nicholas X. Fang, Sailing He, Yanxia Cui, Yi Jin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-11-23T03:13:50Z","title":"Ultra-broadband Light Absorption by a Sawtooth Anisotropic Metamaterial Slab"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.5393","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":"sha256:94b98aeb45d96040a32487f5302102bcdfe3ba3f2a11d0d33572d810dc3fb716","target":"record","created_at":"2026-05-18T01:59:26Z","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":"02c8bd9c3ae0df4c5e1b2555bb952c67b48bef8dc32c5ba13b528e0914e1187b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-11-23T03:13:50Z","title_canon_sha256":"4210c012472d1e63793bf95127584e6730b7387c329d77cc7f633f037c9e8601"},"schema_version":"1.0","source":{"id":"1111.5393","kind":"arxiv","version":1}},"canonical_sha256":"21232de48144cd14f91aa8db628e6a15a4eeb805720ce9b1f3d30c700606b541","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"21232de48144cd14f91aa8db628e6a15a4eeb805720ce9b1f3d30c700606b541","first_computed_at":"2026-05-18T01:59:26.511861Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:26.511861Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8zHp+HhA98EgW1TKUZXbx0OoWaPMECQTwwm2CwO53oaQVUwNGgJdyCFCo1/83bed+sh8GezLG7mgP0IS663NAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:26.512313Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.5393","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:94b98aeb45d96040a32487f5302102bcdfe3ba3f2a11d0d33572d810dc3fb716","sha256:ab77dd3c89f3f61de5b8cfba3d423c58fe798473497ab612a22c402621343175"],"state_sha256":"6cc8cd89a9d22da58fd5bc8fc55f31abfc8f19f9bf17759382489118ddbae3f7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9aoMNCaR0Le3EhPl7jzqNGIBub4RvIUL4xlh9TuG7K4iG9copP3Vub+nxlx0ebxJQtfcKbMjLJjz0sGvPmhnBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T15:50:58.488621Z","bundle_sha256":"39ddbfcb59baec3d488ec5729e0b022321d71e3e4339f0ec898b9a3b70c26bd0"}}