{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:WOVPPUTTVAYSQMSX26E5NHPTNI","short_pith_number":"pith:WOVPPUTT","canonical_record":{"source":{"id":"1908.00180","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-08-01T02:15:16Z","cross_cats_sorted":[],"title_canon_sha256":"58fafda4d4c0316bc393249c3d625adff28462640033e6d30d7c0a5be43ed7e1","abstract_canon_sha256":"4f76320f7ea6d228e039b9a78533af9c66156ece538afc5eecec06a3098c1b61"},"schema_version":"1.0"},"canonical_sha256":"b3aaf7d273a831283257d789d69df36a3de27af68b243db7c3badc491843b762","source":{"kind":"arxiv","id":"1908.00180","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.00180","created_at":"2026-07-05T00:06:21Z"},{"alias_kind":"arxiv_version","alias_value":"1908.00180v2","created_at":"2026-07-05T00:06:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.00180","created_at":"2026-07-05T00:06:21Z"},{"alias_kind":"pith_short_12","alias_value":"WOVPPUTTVAYS","created_at":"2026-07-05T00:06:21Z"},{"alias_kind":"pith_short_16","alias_value":"WOVPPUTTVAYSQMSX","created_at":"2026-07-05T00:06:21Z"},{"alias_kind":"pith_short_8","alias_value":"WOVPPUTT","created_at":"2026-07-05T00:06:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:WOVPPUTTVAYSQMSX26E5NHPTNI","target":"record","payload":{"canonical_record":{"source":{"id":"1908.00180","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-08-01T02:15:16Z","cross_cats_sorted":[],"title_canon_sha256":"58fafda4d4c0316bc393249c3d625adff28462640033e6d30d7c0a5be43ed7e1","abstract_canon_sha256":"4f76320f7ea6d228e039b9a78533af9c66156ece538afc5eecec06a3098c1b61"},"schema_version":"1.0"},"canonical_sha256":"b3aaf7d273a831283257d789d69df36a3de27af68b243db7c3badc491843b762","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:06:21.392955Z","signature_b64":"klFyUpzXXSn2DDGXwfiTQy0vIv2eAg55UXxBOxT0p9ChHAhMZqIOhQJz1dloAbMLIoMsER6SKAtyjzebUIIkBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b3aaf7d273a831283257d789d69df36a3de27af68b243db7c3badc491843b762","last_reissued_at":"2026-07-05T00:06:21.392495Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:06:21.392495Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.00180","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T00:06:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SafRffcsE/y6Sll+GgvTjn5LQd3+RmORalFpDHMd3jTMW8HUOMVbHlLF3oEBO4gGkHPJjfuAJBDMpybFTlwWBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T11:37:56.539095Z"},"content_sha256":"905780da685095ab4084c50a3dc4146d840e80489afe401c947e737d241a5a30","schema_version":"1.0","event_id":"sha256:905780da685095ab4084c50a3dc4146d840e80489afe401c947e737d241a5a30"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:WOVPPUTTVAYSQMSX26E5NHPTNI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Sub-monolayer structures of Ag overlayers on Ge(111): experimental observations and first-principles study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Cory H. Mullet, Duy Le, Jason A. Giacomo, Shirley Chiang, Shree Ram Acharya, Talat S. Rahman","submitted_at":"2019-08-01T02:15:16Z","abstract_excerpt":"We present a joint experimental and theoretical determination of structures of Ag adatoms on the Ge(111) surface using low energy electron diffraction, low energy electron microscopy, scanning tunneling microscopy, and density functional theory-based calculations, as functions of coverages and temperature. Experimentally for clean Ge(111), c(2X8) and (2X1) phases occur, while Ag overlayers cause (4X4), (V3XV3)R30 and (3X1) surface structural phases. The dependence of the growth behavior of these different phases was examined as a function of temperature, Ag deposition rate and coverage, substr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.00180","kind":"arxiv","version":2},"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/1908.00180/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":"2026-07-05T00:06:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8RTYTFLNlwPlDKcADko9vdwG/xw32ovnyZuzH0V444niQmwTylWIa2eA9VEi0gShoZrOI6Tc1mubmKeRCdsRCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T11:37:56.539620Z"},"content_sha256":"69b06692d7653a622594ec430564f7d82f2aae86983a442f952f0eca7695f6fc","schema_version":"1.0","event_id":"sha256:69b06692d7653a622594ec430564f7d82f2aae86983a442f952f0eca7695f6fc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WOVPPUTTVAYSQMSX26E5NHPTNI/bundle.json","state_url":"https://pith.science/pith/WOVPPUTTVAYSQMSX26E5NHPTNI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WOVPPUTTVAYSQMSX26E5NHPTNI/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":"2026-08-23T11:37:56Z","links":{"resolver":"https://pith.science/pith/WOVPPUTTVAYSQMSX26E5NHPTNI","bundle":"https://pith.science/pith/WOVPPUTTVAYSQMSX26E5NHPTNI/bundle.json","state":"https://pith.science/pith/WOVPPUTTVAYSQMSX26E5NHPTNI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WOVPPUTTVAYSQMSX26E5NHPTNI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:WOVPPUTTVAYSQMSX26E5NHPTNI","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":"4f76320f7ea6d228e039b9a78533af9c66156ece538afc5eecec06a3098c1b61","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-08-01T02:15:16Z","title_canon_sha256":"58fafda4d4c0316bc393249c3d625adff28462640033e6d30d7c0a5be43ed7e1"},"schema_version":"1.0","source":{"id":"1908.00180","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.00180","created_at":"2026-07-05T00:06:21Z"},{"alias_kind":"arxiv_version","alias_value":"1908.00180v2","created_at":"2026-07-05T00:06:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.00180","created_at":"2026-07-05T00:06:21Z"},{"alias_kind":"pith_short_12","alias_value":"WOVPPUTTVAYS","created_at":"2026-07-05T00:06:21Z"},{"alias_kind":"pith_short_16","alias_value":"WOVPPUTTVAYSQMSX","created_at":"2026-07-05T00:06:21Z"},{"alias_kind":"pith_short_8","alias_value":"WOVPPUTT","created_at":"2026-07-05T00:06:21Z"}],"graph_snapshots":[{"event_id":"sha256:69b06692d7653a622594ec430564f7d82f2aae86983a442f952f0eca7695f6fc","target":"graph","created_at":"2026-07-05T00:06:21Z","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/1908.00180/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a joint experimental and theoretical determination of structures of Ag adatoms on the Ge(111) surface using low energy electron diffraction, low energy electron microscopy, scanning tunneling microscopy, and density functional theory-based calculations, as functions of coverages and temperature. Experimentally for clean Ge(111), c(2X8) and (2X1) phases occur, while Ag overlayers cause (4X4), (V3XV3)R30 and (3X1) surface structural phases. The dependence of the growth behavior of these different phases was examined as a function of temperature, Ag deposition rate and coverage, substr","authors_text":"Cory H. Mullet, Duy Le, Jason A. Giacomo, Shirley Chiang, Shree Ram Acharya, Talat S. Rahman","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-08-01T02:15:16Z","title":"Sub-monolayer structures of Ag overlayers on Ge(111): experimental observations and first-principles study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.00180","kind":"arxiv","version":2},"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":"sha256:905780da685095ab4084c50a3dc4146d840e80489afe401c947e737d241a5a30","target":"record","created_at":"2026-07-05T00:06:21Z","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":"4f76320f7ea6d228e039b9a78533af9c66156ece538afc5eecec06a3098c1b61","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-08-01T02:15:16Z","title_canon_sha256":"58fafda4d4c0316bc393249c3d625adff28462640033e6d30d7c0a5be43ed7e1"},"schema_version":"1.0","source":{"id":"1908.00180","kind":"arxiv","version":2}},"canonical_sha256":"b3aaf7d273a831283257d789d69df36a3de27af68b243db7c3badc491843b762","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b3aaf7d273a831283257d789d69df36a3de27af68b243db7c3badc491843b762","first_computed_at":"2026-07-05T00:06:21.392495Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:06:21.392495Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"klFyUpzXXSn2DDGXwfiTQy0vIv2eAg55UXxBOxT0p9ChHAhMZqIOhQJz1dloAbMLIoMsER6SKAtyjzebUIIkBw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:06:21.392955Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.00180","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:905780da685095ab4084c50a3dc4146d840e80489afe401c947e737d241a5a30","sha256:69b06692d7653a622594ec430564f7d82f2aae86983a442f952f0eca7695f6fc"],"state_sha256":"9ba245765ce214047a793cbeed00bb90462b2906a061be47efeaaa84c8916a98"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QF2ZXsP2CstiO4mggLFL2OPk2mb/79/fCLpLl4vSjFU88SA4YBRv3OFPEk8Fu1kaVke7S2Pg6DpWY1xcdzjVBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T11:37:56.543626Z","bundle_sha256":"159c822364e623f747813bf7010a151bb027faca78237fd07b7f8ab6fa12afe6"}}