{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:IAB3QDL623SGFH5TFHFELNXSST","short_pith_number":"pith:IAB3QDL6","canonical_record":{"source":{"id":"1803.10828","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-03-28T19:54:02Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"dacb86bb9ff7c10b240cdc29cfab4f215ad55b07a8df7c06a88d30f57ffd3340","abstract_canon_sha256":"7c4491faffd62ee6591bd321ddc26a60f21906358ff661e799526cf474c9a2d7"},"schema_version":"1.0"},"canonical_sha256":"4003b80d7ed6e4629fb329ca45b6f294f35e3da3a383ea2e92d4a598bb4b1d02","source":{"kind":"arxiv","id":"1803.10828","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.10828","created_at":"2026-05-18T00:19:50Z"},{"alias_kind":"arxiv_version","alias_value":"1803.10828v1","created_at":"2026-05-18T00:19:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.10828","created_at":"2026-05-18T00:19:50Z"},{"alias_kind":"pith_short_12","alias_value":"IAB3QDL623SG","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"IAB3QDL623SGFH5T","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"IAB3QDL6","created_at":"2026-05-18T12:32:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:IAB3QDL623SGFH5TFHFELNXSST","target":"record","payload":{"canonical_record":{"source":{"id":"1803.10828","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-03-28T19:54:02Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"dacb86bb9ff7c10b240cdc29cfab4f215ad55b07a8df7c06a88d30f57ffd3340","abstract_canon_sha256":"7c4491faffd62ee6591bd321ddc26a60f21906358ff661e799526cf474c9a2d7"},"schema_version":"1.0"},"canonical_sha256":"4003b80d7ed6e4629fb329ca45b6f294f35e3da3a383ea2e92d4a598bb4b1d02","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:19:50.089877Z","signature_b64":"DpNjJHc73eVM+KwI12DKoQKeQek8JBkfHuLRMebSBszV6Zk+TNJmxtMJ03uYMH/U5ENX2gk2O3X8oVyG9K0+Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4003b80d7ed6e4629fb329ca45b6f294f35e3da3a383ea2e92d4a598bb4b1d02","last_reissued_at":"2026-05-18T00:19:50.088832Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:19:50.088832Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.10828","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":"2026-05-18T00:19:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ORkx1RpVkZE4j/IWhVNWUPajTSDu6+TwPuVSTAFtUIXqS1LXbbjaAO6eLfCq6dcz5WgWwPM1f14dS4b7AcVeCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:06:20.718423Z"},"content_sha256":"d9438c30b4b33ef09f4e3ed5b01fda04d5bf3354e92ff139cdd71bf4d92f44dd","schema_version":"1.0","event_id":"sha256:d9438c30b4b33ef09f4e3ed5b01fda04d5bf3354e92ff139cdd71bf4d92f44dd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:IAB3QDL623SGFH5TFHFELNXSST","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Study of nitrogen ion doping of titanium dioxide films","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Diego Scoca, Fernando Alvarez, Francisco Chagas Marques, Luiz Fernando Zagonel, Rafael Borges Merlo, Raul Ramos","submitted_at":"2018-03-28T19:54:02Z","abstract_excerpt":"This study reports on the properties of nitrogen doped titanium dioxide $TiO_2$ thin films considering the application as transparent conducting oxide (TCO). Sets of thin films were prepared by sputtering a titanium target under oxygen atmosphere on a quartz substrate at 400 or 500{\\deg}C. Films were then doped at the same temperature by 150 eV nitrogen ions. The films were prepared in Anatase phase which was maintained after doping. Up to 30at% nitrogen concentration was obtained at the surface, as determined by in situ x-ray photoelectron spectroscopy (XPS). Such high nitrogen concentration "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.10828","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":"2026-05-18T00:19:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Fq1tbNqSKbJ2IyqN1/E6GEbSLXXxsSE6DdtT3OGY3JL9Qd6/i2LiqcyDOQ8wXTiZH6dRrYC0OI3/vkRb0fwxBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:06:20.719048Z"},"content_sha256":"c333a89abb4795a39e24995445af8bd762f987227cf03dd71e77c159fd1ed626","schema_version":"1.0","event_id":"sha256:c333a89abb4795a39e24995445af8bd762f987227cf03dd71e77c159fd1ed626"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IAB3QDL623SGFH5TFHFELNXSST/bundle.json","state_url":"https://pith.science/pith/IAB3QDL623SGFH5TFHFELNXSST/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IAB3QDL623SGFH5TFHFELNXSST/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":"2026-05-25T16:06:20Z","links":{"resolver":"https://pith.science/pith/IAB3QDL623SGFH5TFHFELNXSST","bundle":"https://pith.science/pith/IAB3QDL623SGFH5TFHFELNXSST/bundle.json","state":"https://pith.science/pith/IAB3QDL623SGFH5TFHFELNXSST/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IAB3QDL623SGFH5TFHFELNXSST/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:IAB3QDL623SGFH5TFHFELNXSST","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":"7c4491faffd62ee6591bd321ddc26a60f21906358ff661e799526cf474c9a2d7","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-03-28T19:54:02Z","title_canon_sha256":"dacb86bb9ff7c10b240cdc29cfab4f215ad55b07a8df7c06a88d30f57ffd3340"},"schema_version":"1.0","source":{"id":"1803.10828","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.10828","created_at":"2026-05-18T00:19:50Z"},{"alias_kind":"arxiv_version","alias_value":"1803.10828v1","created_at":"2026-05-18T00:19:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.10828","created_at":"2026-05-18T00:19:50Z"},{"alias_kind":"pith_short_12","alias_value":"IAB3QDL623SG","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"IAB3QDL623SGFH5T","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"IAB3QDL6","created_at":"2026-05-18T12:32:28Z"}],"graph_snapshots":[{"event_id":"sha256:c333a89abb4795a39e24995445af8bd762f987227cf03dd71e77c159fd1ed626","target":"graph","created_at":"2026-05-18T00:19:50Z","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":"This study reports on the properties of nitrogen doped titanium dioxide $TiO_2$ thin films considering the application as transparent conducting oxide (TCO). Sets of thin films were prepared by sputtering a titanium target under oxygen atmosphere on a quartz substrate at 400 or 500{\\deg}C. Films were then doped at the same temperature by 150 eV nitrogen ions. The films were prepared in Anatase phase which was maintained after doping. Up to 30at% nitrogen concentration was obtained at the surface, as determined by in situ x-ray photoelectron spectroscopy (XPS). Such high nitrogen concentration ","authors_text":"Diego Scoca, Fernando Alvarez, Francisco Chagas Marques, Luiz Fernando Zagonel, Rafael Borges Merlo, Raul Ramos","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-03-28T19:54:02Z","title":"Study of nitrogen ion doping of titanium dioxide films"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.10828","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:d9438c30b4b33ef09f4e3ed5b01fda04d5bf3354e92ff139cdd71bf4d92f44dd","target":"record","created_at":"2026-05-18T00:19:50Z","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":"7c4491faffd62ee6591bd321ddc26a60f21906358ff661e799526cf474c9a2d7","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-03-28T19:54:02Z","title_canon_sha256":"dacb86bb9ff7c10b240cdc29cfab4f215ad55b07a8df7c06a88d30f57ffd3340"},"schema_version":"1.0","source":{"id":"1803.10828","kind":"arxiv","version":1}},"canonical_sha256":"4003b80d7ed6e4629fb329ca45b6f294f35e3da3a383ea2e92d4a598bb4b1d02","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4003b80d7ed6e4629fb329ca45b6f294f35e3da3a383ea2e92d4a598bb4b1d02","first_computed_at":"2026-05-18T00:19:50.088832Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:19:50.088832Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DpNjJHc73eVM+KwI12DKoQKeQek8JBkfHuLRMebSBszV6Zk+TNJmxtMJ03uYMH/U5ENX2gk2O3X8oVyG9K0+Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:19:50.089877Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.10828","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d9438c30b4b33ef09f4e3ed5b01fda04d5bf3354e92ff139cdd71bf4d92f44dd","sha256:c333a89abb4795a39e24995445af8bd762f987227cf03dd71e77c159fd1ed626"],"state_sha256":"4943b58d29adc19e9c73da71bb95999b37605af377aac093edba3ca6355e7fb5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r9aBwqd7F4JkkOkFO7BMUTQVlJ6bp1cBGj0Rwait9AdPTtNrlWplYIQTIxtCkHJwDFo8+uRQDafpTaIv4Wz/AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T16:06:20.722233Z","bundle_sha256":"3ffb2363eaddb3aaa7552cbee9b765f738034bdf20b4b2dd99f56a6c809c6857"}}