{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:AMTYYZCA7XYSO2VDQB6UMOZ3YU","short_pith_number":"pith:AMTYYZCA","canonical_record":{"source":{"id":"1807.03102","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-07-06T13:56:30Z","cross_cats_sorted":[],"title_canon_sha256":"64d91d53de3d305d52ef5e64705950c3b42358ab57d43e1e15cd2d5ae06f5bf0","abstract_canon_sha256":"f40dcfaf46d05d584391f01ed95aeb3aebd8182aa27c4f1ecd8db1b1521d3444"},"schema_version":"1.0"},"canonical_sha256":"03278c6440fdf1276aa3807d463b3bc5213856e1e32aa1e264c5398c083362ca","source":{"kind":"arxiv","id":"1807.03102","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.03102","created_at":"2026-05-18T00:11:12Z"},{"alias_kind":"arxiv_version","alias_value":"1807.03102v1","created_at":"2026-05-18T00:11:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.03102","created_at":"2026-05-18T00:11:12Z"},{"alias_kind":"pith_short_12","alias_value":"AMTYYZCA7XYS","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AMTYYZCA7XYSO2VD","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AMTYYZCA","created_at":"2026-05-18T12:32:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:AMTYYZCA7XYSO2VDQB6UMOZ3YU","target":"record","payload":{"canonical_record":{"source":{"id":"1807.03102","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-07-06T13:56:30Z","cross_cats_sorted":[],"title_canon_sha256":"64d91d53de3d305d52ef5e64705950c3b42358ab57d43e1e15cd2d5ae06f5bf0","abstract_canon_sha256":"f40dcfaf46d05d584391f01ed95aeb3aebd8182aa27c4f1ecd8db1b1521d3444"},"schema_version":"1.0"},"canonical_sha256":"03278c6440fdf1276aa3807d463b3bc5213856e1e32aa1e264c5398c083362ca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:11:12.886350Z","signature_b64":"x+cxFrawXpfPY1HDqudTAd6nxOB1TBTfrZrXgpvhZVeN5Vgd+JDwDYijBwdjRAT9wGXegmPOjhJSILa4z4RmDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"03278c6440fdf1276aa3807d463b3bc5213856e1e32aa1e264c5398c083362ca","last_reissued_at":"2026-05-18T00:11:12.885596Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:11:12.885596Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.03102","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":"2026-05-18T00:11:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mpYoPZolfp5AX0DAqTlMK0XAJuh4Q5kOLhlIjadiMoyU5FRs4iipOmBkl7Iqkoi+7Tb35gU9tdvEkz8Eo5X7Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T21:17:52.823283Z"},"content_sha256":"27772b1fad22493996a2ee69437dbfe0f73f74fc3afe6e6c4a6d66b558df1e33","schema_version":"1.0","event_id":"sha256:27772b1fad22493996a2ee69437dbfe0f73f74fc3afe6e6c4a6d66b558df1e33"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:AMTYYZCA7XYSO2VDQB6UMOZ3YU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The role of surface quenching of the singlet delta molecule in a capacitively coupled oxygen discharge","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"Andrea Proto, J. T. Gudmundsson","submitted_at":"2018-07-06T13:56:30Z","abstract_excerpt":"We use the one-dimensional object-oriented particle-in-cell Monte Carlo collision code oopd1 to explore the influence of the surface quenching of the singlet delta metastable molecule O$_2$(a$^1\\Delta_{\\rm g}$) on the electron heating mechanism, and the electron energy probability function (EEPF), in a single frequency capacitively coupled oxygen discharge. When operating at low pressure (10 mTorr) varying the surface quenching coefficient in the range 0.00001 -- 0.1 has no influence on the electron heating mechanism and electron heating is dominated by drift-ambipolar (DA) heating in the plas"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.03102","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":"2026-05-18T00:11:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wEN+ZbT6DEM56iuLX7FeRhR00ZBruT+sq08ZBAgJaAckK+KlgmByNOpOe8b/c5I2Q+aCMa52u+g+920rwtzoBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T21:17:52.824028Z"},"content_sha256":"9d8415c4370336f73036e996f30c92b25913a09bf4bb53f81882870e2f66756b","schema_version":"1.0","event_id":"sha256:9d8415c4370336f73036e996f30c92b25913a09bf4bb53f81882870e2f66756b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AMTYYZCA7XYSO2VDQB6UMOZ3YU/bundle.json","state_url":"https://pith.science/pith/AMTYYZCA7XYSO2VDQB6UMOZ3YU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AMTYYZCA7XYSO2VDQB6UMOZ3YU/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":"2026-06-11T21:17:52Z","links":{"resolver":"https://pith.science/pith/AMTYYZCA7XYSO2VDQB6UMOZ3YU","bundle":"https://pith.science/pith/AMTYYZCA7XYSO2VDQB6UMOZ3YU/bundle.json","state":"https://pith.science/pith/AMTYYZCA7XYSO2VDQB6UMOZ3YU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AMTYYZCA7XYSO2VDQB6UMOZ3YU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:AMTYYZCA7XYSO2VDQB6UMOZ3YU","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":"f40dcfaf46d05d584391f01ed95aeb3aebd8182aa27c4f1ecd8db1b1521d3444","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-07-06T13:56:30Z","title_canon_sha256":"64d91d53de3d305d52ef5e64705950c3b42358ab57d43e1e15cd2d5ae06f5bf0"},"schema_version":"1.0","source":{"id":"1807.03102","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.03102","created_at":"2026-05-18T00:11:12Z"},{"alias_kind":"arxiv_version","alias_value":"1807.03102v1","created_at":"2026-05-18T00:11:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.03102","created_at":"2026-05-18T00:11:12Z"},{"alias_kind":"pith_short_12","alias_value":"AMTYYZCA7XYS","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AMTYYZCA7XYSO2VD","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AMTYYZCA","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:9d8415c4370336f73036e996f30c92b25913a09bf4bb53f81882870e2f66756b","target":"graph","created_at":"2026-05-18T00:11:12Z","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 use the one-dimensional object-oriented particle-in-cell Monte Carlo collision code oopd1 to explore the influence of the surface quenching of the singlet delta metastable molecule O$_2$(a$^1\\Delta_{\\rm g}$) on the electron heating mechanism, and the electron energy probability function (EEPF), in a single frequency capacitively coupled oxygen discharge. When operating at low pressure (10 mTorr) varying the surface quenching coefficient in the range 0.00001 -- 0.1 has no influence on the electron heating mechanism and electron heating is dominated by drift-ambipolar (DA) heating in the plas","authors_text":"Andrea Proto, J. T. Gudmundsson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-07-06T13:56:30Z","title":"The role of surface quenching of the singlet delta molecule in a capacitively coupled oxygen discharge"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.03102","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":"sha256:27772b1fad22493996a2ee69437dbfe0f73f74fc3afe6e6c4a6d66b558df1e33","target":"record","created_at":"2026-05-18T00:11:12Z","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":"f40dcfaf46d05d584391f01ed95aeb3aebd8182aa27c4f1ecd8db1b1521d3444","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-07-06T13:56:30Z","title_canon_sha256":"64d91d53de3d305d52ef5e64705950c3b42358ab57d43e1e15cd2d5ae06f5bf0"},"schema_version":"1.0","source":{"id":"1807.03102","kind":"arxiv","version":1}},"canonical_sha256":"03278c6440fdf1276aa3807d463b3bc5213856e1e32aa1e264c5398c083362ca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"03278c6440fdf1276aa3807d463b3bc5213856e1e32aa1e264c5398c083362ca","first_computed_at":"2026-05-18T00:11:12.885596Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:11:12.885596Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"x+cxFrawXpfPY1HDqudTAd6nxOB1TBTfrZrXgpvhZVeN5Vgd+JDwDYijBwdjRAT9wGXegmPOjhJSILa4z4RmDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:11:12.886350Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.03102","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:27772b1fad22493996a2ee69437dbfe0f73f74fc3afe6e6c4a6d66b558df1e33","sha256:9d8415c4370336f73036e996f30c92b25913a09bf4bb53f81882870e2f66756b"],"state_sha256":"bd90c04895501194c45c09f0ecd596bec866cd85effdd38fcc821138516e40e4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EvkQnDlqPMjlv8gNbUzByUJ8IR7sVOPLg/WckNwlGU/Ul5oXwyInZBZelLf8/TQVgDqHpx8Adaa91Uj7JymdCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T21:17:52.828539Z","bundle_sha256":"c5a069666ea2f07a13948839e7eb1f0985fc58628988b8e96a4b4a5b15bf26fa"}}