{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:SQ4IGUST2KOBMCSYSNXN3WSC5O","short_pith_number":"pith:SQ4IGUST","canonical_record":{"source":{"id":"1708.06788","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-08-21T00:01:48Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"a02ac90422948353506c7a0881d004aff71c99d0e49d258c36dd1f15ab641cea","abstract_canon_sha256":"1d53d9641814102d8266d55890c35c7e451110be5d3650c9dfdc4f46b62379b8"},"schema_version":"1.0"},"canonical_sha256":"9438835253d29c160a58936eddda42eb9865f2357dbb66919b22ef70f20e0f87","source":{"kind":"arxiv","id":"1708.06788","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.06788","created_at":"2026-05-18T00:36:52Z"},{"alias_kind":"arxiv_version","alias_value":"1708.06788v1","created_at":"2026-05-18T00:36:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.06788","created_at":"2026-05-18T00:36:52Z"},{"alias_kind":"pith_short_12","alias_value":"SQ4IGUST2KOB","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"SQ4IGUST2KOBMCSY","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"SQ4IGUST","created_at":"2026-05-18T12:31:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:SQ4IGUST2KOBMCSYSNXN3WSC5O","target":"record","payload":{"canonical_record":{"source":{"id":"1708.06788","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-08-21T00:01:48Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"a02ac90422948353506c7a0881d004aff71c99d0e49d258c36dd1f15ab641cea","abstract_canon_sha256":"1d53d9641814102d8266d55890c35c7e451110be5d3650c9dfdc4f46b62379b8"},"schema_version":"1.0"},"canonical_sha256":"9438835253d29c160a58936eddda42eb9865f2357dbb66919b22ef70f20e0f87","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:36:52.059090Z","signature_b64":"VXGmVW0iV3KsJm4Jq35KvSxmhJA1x84gxBjcG3KfIKuopmCoUpjBxvuKn7NtRgpN5YFr0Xg52BaxmhAGkcBcAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9438835253d29c160a58936eddda42eb9865f2357dbb66919b22ef70f20e0f87","last_reissued_at":"2026-05-18T00:36:52.058472Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:36:52.058472Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.06788","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":"2026-05-18T00:36:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XVxAk6UVIHVuYB+fSOvaaqeto0Yzaf5qaJUwW5Q2r9UrjJTbPSIkYwKkYK9Dv9v77XTshRZGPld23BXhmeBXCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T17:40:48.281493Z"},"content_sha256":"f40acb41f7f6578264d4cc74a7ac0e0c9cbb39dd39993c1fbcc6f5d6de090105","schema_version":"1.0","event_id":"sha256:f40acb41f7f6578264d4cc74a7ac0e0c9cbb39dd39993c1fbcc6f5d6de090105"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:SQ4IGUST2KOBMCSYSNXN3WSC5O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Channel resolution enhancement through scalability of nano/micro-scale thickness and width of SU-8 polymer based optical channels using UV lithography","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"physics.app-ph","authors_text":"Iraj S Amiri, M Ariannejad, M Ghasemi, P Yupapin, Volker J. Sorger","submitted_at":"2017-08-21T00:01:48Z","abstract_excerpt":"This paper reports on an approach for fabrication of micro-channels with nanometer thickness achieved by optimization of UV lithography processes. Rectangular micro-channels with a staple edge are fabricated over the surface of a silicon wafer substrate in which a sub-micron layer of diluted SU-8 thin film has been coated. The optimization of the process parameters including the duration of a two-step pre- and post-baking process, UV exposure dosage, and finally chemical developing time with constant agitation produces micro-channels with high contrast edges and thickness below 100 nm is achie"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.06788","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":"2026-05-18T00:36:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GDfzy7jGC7lN814nMtCYmcoi0MdZIMDRiqRy3HUekuEZq/wQF4lpf6pYkk/A2N2JnuEMOauwT+KhG2IbcHETDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T17:40:48.281852Z"},"content_sha256":"95c5ab69cd68759c7e73d139986b3dc0c485c8199c209e2d26a363a857e4d1ba","schema_version":"1.0","event_id":"sha256:95c5ab69cd68759c7e73d139986b3dc0c485c8199c209e2d26a363a857e4d1ba"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SQ4IGUST2KOBMCSYSNXN3WSC5O/bundle.json","state_url":"https://pith.science/pith/SQ4IGUST2KOBMCSYSNXN3WSC5O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SQ4IGUST2KOBMCSYSNXN3WSC5O/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":"2026-05-30T17:40:48Z","links":{"resolver":"https://pith.science/pith/SQ4IGUST2KOBMCSYSNXN3WSC5O","bundle":"https://pith.science/pith/SQ4IGUST2KOBMCSYSNXN3WSC5O/bundle.json","state":"https://pith.science/pith/SQ4IGUST2KOBMCSYSNXN3WSC5O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SQ4IGUST2KOBMCSYSNXN3WSC5O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:SQ4IGUST2KOBMCSYSNXN3WSC5O","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":"1d53d9641814102d8266d55890c35c7e451110be5d3650c9dfdc4f46b62379b8","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-08-21T00:01:48Z","title_canon_sha256":"a02ac90422948353506c7a0881d004aff71c99d0e49d258c36dd1f15ab641cea"},"schema_version":"1.0","source":{"id":"1708.06788","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.06788","created_at":"2026-05-18T00:36:52Z"},{"alias_kind":"arxiv_version","alias_value":"1708.06788v1","created_at":"2026-05-18T00:36:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.06788","created_at":"2026-05-18T00:36:52Z"},{"alias_kind":"pith_short_12","alias_value":"SQ4IGUST2KOB","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"SQ4IGUST2KOBMCSY","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"SQ4IGUST","created_at":"2026-05-18T12:31:43Z"}],"graph_snapshots":[{"event_id":"sha256:95c5ab69cd68759c7e73d139986b3dc0c485c8199c209e2d26a363a857e4d1ba","target":"graph","created_at":"2026-05-18T00:36:52Z","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":"This paper reports on an approach for fabrication of micro-channels with nanometer thickness achieved by optimization of UV lithography processes. Rectangular micro-channels with a staple edge are fabricated over the surface of a silicon wafer substrate in which a sub-micron layer of diluted SU-8 thin film has been coated. The optimization of the process parameters including the duration of a two-step pre- and post-baking process, UV exposure dosage, and finally chemical developing time with constant agitation produces micro-channels with high contrast edges and thickness below 100 nm is achie","authors_text":"Iraj S Amiri, M Ariannejad, M Ghasemi, P Yupapin, Volker J. Sorger","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-08-21T00:01:48Z","title":"Channel resolution enhancement through scalability of nano/micro-scale thickness and width of SU-8 polymer based optical channels using UV lithography"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.06788","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:f40acb41f7f6578264d4cc74a7ac0e0c9cbb39dd39993c1fbcc6f5d6de090105","target":"record","created_at":"2026-05-18T00:36:52Z","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":"1d53d9641814102d8266d55890c35c7e451110be5d3650c9dfdc4f46b62379b8","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-08-21T00:01:48Z","title_canon_sha256":"a02ac90422948353506c7a0881d004aff71c99d0e49d258c36dd1f15ab641cea"},"schema_version":"1.0","source":{"id":"1708.06788","kind":"arxiv","version":1}},"canonical_sha256":"9438835253d29c160a58936eddda42eb9865f2357dbb66919b22ef70f20e0f87","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9438835253d29c160a58936eddda42eb9865f2357dbb66919b22ef70f20e0f87","first_computed_at":"2026-05-18T00:36:52.058472Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:52.058472Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VXGmVW0iV3KsJm4Jq35KvSxmhJA1x84gxBjcG3KfIKuopmCoUpjBxvuKn7NtRgpN5YFr0Xg52BaxmhAGkcBcAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:52.059090Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.06788","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f40acb41f7f6578264d4cc74a7ac0e0c9cbb39dd39993c1fbcc6f5d6de090105","sha256:95c5ab69cd68759c7e73d139986b3dc0c485c8199c209e2d26a363a857e4d1ba"],"state_sha256":"c20db8830445d702df023cf042c240d3be4263d779213654908402186328d44b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tNCa0cwSGTTP147gD+TmedBZe+IAXKf5eRYStnYCJmc4WzD08hXWOaZJE4kj6+UIe2IDTFqxvgUxSucdoaI+Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T17:40:48.284103Z","bundle_sha256":"5e36ae8b9557b51ec7bad4d70540f39a51bf4cf9d43f66f651b49e5a8d978557"}}