{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:J4HELALSRTGRCM3MCKNWKTZ3GR","short_pith_number":"pith:J4HELALS","canonical_record":{"source":{"id":"2605.22279","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2026-05-21T10:25:08Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"70ab885fec084826349e43a326250e098f70d4a5478f80bee3280e21e78a70a7","abstract_canon_sha256":"1bb2076095ac0b4d723399d5b1a7246528db80900e98f613844f9af01a84a60a"},"schema_version":"1.0"},"canonical_sha256":"4f0e4581728ccd11336c129b654f3b3443e07eb91189b95ed116287d7a438fa8","source":{"kind":"arxiv","id":"2605.22279","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.22279","created_at":"2026-05-22T01:04:35Z"},{"alias_kind":"arxiv_version","alias_value":"2605.22279v1","created_at":"2026-05-22T01:04:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.22279","created_at":"2026-05-22T01:04:35Z"},{"alias_kind":"pith_short_12","alias_value":"J4HELALSRTGR","created_at":"2026-05-22T01:04:35Z"},{"alias_kind":"pith_short_16","alias_value":"J4HELALSRTGRCM3M","created_at":"2026-05-22T01:04:35Z"},{"alias_kind":"pith_short_8","alias_value":"J4HELALS","created_at":"2026-05-22T01:04:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:J4HELALSRTGRCM3MCKNWKTZ3GR","target":"record","payload":{"canonical_record":{"source":{"id":"2605.22279","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2026-05-21T10:25:08Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"70ab885fec084826349e43a326250e098f70d4a5478f80bee3280e21e78a70a7","abstract_canon_sha256":"1bb2076095ac0b4d723399d5b1a7246528db80900e98f613844f9af01a84a60a"},"schema_version":"1.0"},"canonical_sha256":"4f0e4581728ccd11336c129b654f3b3443e07eb91189b95ed116287d7a438fa8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-22T01:04:35.853006Z","signature_b64":"U2zPC+TDlB2pVhZoRWM782jq4XNE59ZgjuCGNyQCLAtu9bnioKGgUMyhEHP1l27bnwfYZq5VmHZI6EE9nJOCDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4f0e4581728ccd11336c129b654f3b3443e07eb91189b95ed116287d7a438fa8","last_reissued_at":"2026-05-22T01:04:35.852281Z","signature_status":"signed_v1","first_computed_at":"2026-05-22T01:04:35.852281Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.22279","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":"2026-05-22T01:04:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xd9wHYiCR2rTYrRE9jsMEfa3O0p3C9drQEO4s7jfTkgiemv/BVG+Il12Kr8KCbpjV6yTFwu8DFreZWTpbB4sAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T02:35:57.984920Z"},"content_sha256":"675ff33bd3eff11c923867427570fd5f76bdaad94ad873c473a5f9c50e8917db","schema_version":"1.0","event_id":"sha256:675ff33bd3eff11c923867427570fd5f76bdaad94ad873c473a5f9c50e8917db"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:J4HELALSRTGRCM3MCKNWKTZ3GR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Simultaneously monitoring Ga adsorption and desorption kinetics on GaN(0001) using four in situ techniques","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"physics.app-ph","authors_text":"Huaide Zhang, Jingxuan Kang, Lutz Geelhaar, Oliver Brandt, Philipp John, Yongjin Cho","submitted_at":"2026-05-21T10:25:08Z","abstract_excerpt":"We present a systematic investigation of Ga adsorption and desorption kinetics on the wurtzite GaN(0001) surface using four in situ techniques operated simultaneously: reflection high-energy electron diffraction, laser reflectometry, line-of-sight quadrupole mass spectrometry, and optical pyrometry. Flux- and temperature-dependent experiments are performed for Ga coverages ranging from the submonolayer to the droplet regime. Despite their distinct transient responses, the signals from all four techniques and their trends with surface coverage are quantitatively reproduced by a unified kinetic "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.22279","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.22279/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-05-22T01:04:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SoHc3aSDZY3DF6B+/R4UGzpY/+BqSS5d9WO6Eh7w0Bdo75aiqzYqP8aVdLKCJjA8MCPRaGY2qcOeLiwFEF8gAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T02:35:57.985301Z"},"content_sha256":"2cadbabdff282e45e25fffb3f93d5452f0d9d22fe407a48566e0e814587b81a7","schema_version":"1.0","event_id":"sha256:2cadbabdff282e45e25fffb3f93d5452f0d9d22fe407a48566e0e814587b81a7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J4HELALSRTGRCM3MCKNWKTZ3GR/bundle.json","state_url":"https://pith.science/pith/J4HELALSRTGRCM3MCKNWKTZ3GR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J4HELALSRTGRCM3MCKNWKTZ3GR/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":"2026-06-04T02:35:57Z","links":{"resolver":"https://pith.science/pith/J4HELALSRTGRCM3MCKNWKTZ3GR","bundle":"https://pith.science/pith/J4HELALSRTGRCM3MCKNWKTZ3GR/bundle.json","state":"https://pith.science/pith/J4HELALSRTGRCM3MCKNWKTZ3GR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J4HELALSRTGRCM3MCKNWKTZ3GR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:J4HELALSRTGRCM3MCKNWKTZ3GR","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":"1bb2076095ac0b4d723399d5b1a7246528db80900e98f613844f9af01a84a60a","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2026-05-21T10:25:08Z","title_canon_sha256":"70ab885fec084826349e43a326250e098f70d4a5478f80bee3280e21e78a70a7"},"schema_version":"1.0","source":{"id":"2605.22279","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.22279","created_at":"2026-05-22T01:04:35Z"},{"alias_kind":"arxiv_version","alias_value":"2605.22279v1","created_at":"2026-05-22T01:04:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.22279","created_at":"2026-05-22T01:04:35Z"},{"alias_kind":"pith_short_12","alias_value":"J4HELALSRTGR","created_at":"2026-05-22T01:04:35Z"},{"alias_kind":"pith_short_16","alias_value":"J4HELALSRTGRCM3M","created_at":"2026-05-22T01:04:35Z"},{"alias_kind":"pith_short_8","alias_value":"J4HELALS","created_at":"2026-05-22T01:04:35Z"}],"graph_snapshots":[{"event_id":"sha256:2cadbabdff282e45e25fffb3f93d5452f0d9d22fe407a48566e0e814587b81a7","target":"graph","created_at":"2026-05-22T01:04:35Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2605.22279/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a systematic investigation of Ga adsorption and desorption kinetics on the wurtzite GaN(0001) surface using four in situ techniques operated simultaneously: reflection high-energy electron diffraction, laser reflectometry, line-of-sight quadrupole mass spectrometry, and optical pyrometry. Flux- and temperature-dependent experiments are performed for Ga coverages ranging from the submonolayer to the droplet regime. Despite their distinct transient responses, the signals from all four techniques and their trends with surface coverage are quantitatively reproduced by a unified kinetic ","authors_text":"Huaide Zhang, Jingxuan Kang, Lutz Geelhaar, Oliver Brandt, Philipp John, Yongjin Cho","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2026-05-21T10:25:08Z","title":"Simultaneously monitoring Ga adsorption and desorption kinetics on GaN(0001) using four in situ techniques"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.22279","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":"sha256:675ff33bd3eff11c923867427570fd5f76bdaad94ad873c473a5f9c50e8917db","target":"record","created_at":"2026-05-22T01:04:35Z","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":"1bb2076095ac0b4d723399d5b1a7246528db80900e98f613844f9af01a84a60a","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2026-05-21T10:25:08Z","title_canon_sha256":"70ab885fec084826349e43a326250e098f70d4a5478f80bee3280e21e78a70a7"},"schema_version":"1.0","source":{"id":"2605.22279","kind":"arxiv","version":1}},"canonical_sha256":"4f0e4581728ccd11336c129b654f3b3443e07eb91189b95ed116287d7a438fa8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4f0e4581728ccd11336c129b654f3b3443e07eb91189b95ed116287d7a438fa8","first_computed_at":"2026-05-22T01:04:35.852281Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-22T01:04:35.852281Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"U2zPC+TDlB2pVhZoRWM782jq4XNE59ZgjuCGNyQCLAtu9bnioKGgUMyhEHP1l27bnwfYZq5VmHZI6EE9nJOCDw==","signature_status":"signed_v1","signed_at":"2026-05-22T01:04:35.853006Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.22279","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:675ff33bd3eff11c923867427570fd5f76bdaad94ad873c473a5f9c50e8917db","sha256:2cadbabdff282e45e25fffb3f93d5452f0d9d22fe407a48566e0e814587b81a7"],"state_sha256":"984abb0efcd615a687569d1267954939e5380e9790594299a820dac642736dd2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lQt7Q8XefcRNQuVIt41I4C06u3hkX2OFEUNhprCnervlOwa4nM8ihZ7Of/eTxfIRrSxeieSyC8q8oHeuQW5RDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T02:35:57.987374Z","bundle_sha256":"d6afcbb3333070afcf4950688fef14c76442cc6c631e0281ecd21fe6fac6c454"}}