{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:RN2JWAIRMPQDW6GHA2YG3IQ5AX","short_pith_number":"pith:RN2JWAIR","canonical_record":{"source":{"id":"2002.09300","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2020-02-20T16:49:26Z","cross_cats_sorted":[],"title_canon_sha256":"3353ad6f5116dfa64dc9fc84ea692610cd973204770d723d981d293e3802b191","abstract_canon_sha256":"c09c214eb9aeff7dc81d4fb15c46decb9073946ab82cab32c7cf135ab90a2350"},"schema_version":"1.0"},"canonical_sha256":"8b749b011163e03b78c706b06da21d05f108949b605e717d7f84e9f7908930d0","source":{"kind":"arxiv","id":"2002.09300","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.09300","created_at":"2026-07-05T00:42:54Z"},{"alias_kind":"arxiv_version","alias_value":"2002.09300v1","created_at":"2026-07-05T00:42:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.09300","created_at":"2026-07-05T00:42:54Z"},{"alias_kind":"pith_short_12","alias_value":"RN2JWAIRMPQD","created_at":"2026-07-05T00:42:54Z"},{"alias_kind":"pith_short_16","alias_value":"RN2JWAIRMPQDW6GH","created_at":"2026-07-05T00:42:54Z"},{"alias_kind":"pith_short_8","alias_value":"RN2JWAIR","created_at":"2026-07-05T00:42:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:RN2JWAIRMPQDW6GHA2YG3IQ5AX","target":"record","payload":{"canonical_record":{"source":{"id":"2002.09300","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2020-02-20T16:49:26Z","cross_cats_sorted":[],"title_canon_sha256":"3353ad6f5116dfa64dc9fc84ea692610cd973204770d723d981d293e3802b191","abstract_canon_sha256":"c09c214eb9aeff7dc81d4fb15c46decb9073946ab82cab32c7cf135ab90a2350"},"schema_version":"1.0"},"canonical_sha256":"8b749b011163e03b78c706b06da21d05f108949b605e717d7f84e9f7908930d0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:42:54.854861Z","signature_b64":"t+UhP25/VXkoPbWWkwlqGBO/lOfVwj5kA7cHxdVHyorgNzZTRdw0LXe7ht40Xn91Xkc3aUU0J+JEL9SJhKpxAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8b749b011163e03b78c706b06da21d05f108949b605e717d7f84e9f7908930d0","last_reissued_at":"2026-07-05T00:42:54.854356Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:42:54.854356Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2002.09300","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":"2026-07-05T00:42:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VzlUZatyg8CEtBvJj1cf5m/u6yJz0imqH0SE4jXpdCBNL+C03WxV3+QOvx2KW+yoQzC0Mqi5ETBr0ADkkVM5BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T15:08:19.543358Z"},"content_sha256":"0f44f54f29a378d66d651384a57c6731cc436cea7e4491c29b135ab08662bcde","schema_version":"1.0","event_id":"sha256:0f44f54f29a378d66d651384a57c6731cc436cea7e4491c29b135ab08662bcde"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:RN2JWAIRMPQDW6GHA2YG3IQ5AX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the origin of sliding friction: Role of lattice trapping","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"A. Tiwari, B. N. J Persson, I. M. Sivebaek, J. Wang","submitted_at":"2020-02-20T16:49:26Z","abstract_excerpt":"Using molecular dynamics we study the dependence of the friction force on the sliding speed when an elastic slab (block) is sliding on a rigid substrate with a ${\\rm sin} (q_0 x)$ surface height profile. The friction force is nearly velocity independent due to phonon emission at the closing and opening crack tips, where rapid atomic snap-in and -out events occur during sliding. The rapid events result from lattice trapping and are closely related to the velocity gap and hysteresis effects observed in model studies of crack propagation in solids. This indicates that the friction force is domina"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.09300","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/2002.09300/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":"2026-07-05T00:42:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PES1oNbZkEe/5iCNyUvRxiwgfJT2/D7c5YFR05a7PTswiKnFvHJtOv7T3GBTvuY7ngqtgGZRP+Lv7hb0HyT6BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T15:08:19.543734Z"},"content_sha256":"75b50e892ad2cc40b803650c65c40836c3e3ee25cfa9899a0e4201a67929adf2","schema_version":"1.0","event_id":"sha256:75b50e892ad2cc40b803650c65c40836c3e3ee25cfa9899a0e4201a67929adf2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RN2JWAIRMPQDW6GHA2YG3IQ5AX/bundle.json","state_url":"https://pith.science/pith/RN2JWAIRMPQDW6GHA2YG3IQ5AX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RN2JWAIRMPQDW6GHA2YG3IQ5AX/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":"2026-07-07T15:08:19Z","links":{"resolver":"https://pith.science/pith/RN2JWAIRMPQDW6GHA2YG3IQ5AX","bundle":"https://pith.science/pith/RN2JWAIRMPQDW6GHA2YG3IQ5AX/bundle.json","state":"https://pith.science/pith/RN2JWAIRMPQDW6GHA2YG3IQ5AX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RN2JWAIRMPQDW6GHA2YG3IQ5AX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:RN2JWAIRMPQDW6GHA2YG3IQ5AX","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":"c09c214eb9aeff7dc81d4fb15c46decb9073946ab82cab32c7cf135ab90a2350","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2020-02-20T16:49:26Z","title_canon_sha256":"3353ad6f5116dfa64dc9fc84ea692610cd973204770d723d981d293e3802b191"},"schema_version":"1.0","source":{"id":"2002.09300","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.09300","created_at":"2026-07-05T00:42:54Z"},{"alias_kind":"arxiv_version","alias_value":"2002.09300v1","created_at":"2026-07-05T00:42:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.09300","created_at":"2026-07-05T00:42:54Z"},{"alias_kind":"pith_short_12","alias_value":"RN2JWAIRMPQD","created_at":"2026-07-05T00:42:54Z"},{"alias_kind":"pith_short_16","alias_value":"RN2JWAIRMPQDW6GH","created_at":"2026-07-05T00:42:54Z"},{"alias_kind":"pith_short_8","alias_value":"RN2JWAIR","created_at":"2026-07-05T00:42:54Z"}],"graph_snapshots":[{"event_id":"sha256:75b50e892ad2cc40b803650c65c40836c3e3ee25cfa9899a0e4201a67929adf2","target":"graph","created_at":"2026-07-05T00:42:54Z","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/2002.09300/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Using molecular dynamics we study the dependence of the friction force on the sliding speed when an elastic slab (block) is sliding on a rigid substrate with a ${\\rm sin} (q_0 x)$ surface height profile. The friction force is nearly velocity independent due to phonon emission at the closing and opening crack tips, where rapid atomic snap-in and -out events occur during sliding. The rapid events result from lattice trapping and are closely related to the velocity gap and hysteresis effects observed in model studies of crack propagation in solids. This indicates that the friction force is domina","authors_text":"A. Tiwari, B. N. J Persson, I. M. Sivebaek, J. Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2020-02-20T16:49:26Z","title":"On the origin of sliding friction: Role of lattice trapping"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.09300","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":"sha256:0f44f54f29a378d66d651384a57c6731cc436cea7e4491c29b135ab08662bcde","target":"record","created_at":"2026-07-05T00:42:54Z","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":"c09c214eb9aeff7dc81d4fb15c46decb9073946ab82cab32c7cf135ab90a2350","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2020-02-20T16:49:26Z","title_canon_sha256":"3353ad6f5116dfa64dc9fc84ea692610cd973204770d723d981d293e3802b191"},"schema_version":"1.0","source":{"id":"2002.09300","kind":"arxiv","version":1}},"canonical_sha256":"8b749b011163e03b78c706b06da21d05f108949b605e717d7f84e9f7908930d0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8b749b011163e03b78c706b06da21d05f108949b605e717d7f84e9f7908930d0","first_computed_at":"2026-07-05T00:42:54.854356Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:42:54.854356Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"t+UhP25/VXkoPbWWkwlqGBO/lOfVwj5kA7cHxdVHyorgNzZTRdw0LXe7ht40Xn91Xkc3aUU0J+JEL9SJhKpxAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:42:54.854861Z","signed_message":"canonical_sha256_bytes"},"source_id":"2002.09300","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0f44f54f29a378d66d651384a57c6731cc436cea7e4491c29b135ab08662bcde","sha256:75b50e892ad2cc40b803650c65c40836c3e3ee25cfa9899a0e4201a67929adf2"],"state_sha256":"79f42b70830f8c87ecafeb6e89a944c9f4f852a3b83014fe1d09868a41ed3dd7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ii6GEz440ALxMUfjNl9RCx3hOOCAQJXRlZKfFFDHkfk9kUfkpDomSA0U8gChOQ0Bx1yBgsHsoJuFhNL9eRhACg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T15:08:19.545906Z","bundle_sha256":"fd65cc3cecfa9093df12d1d6ef1740520ff82518f6154c59bfa45e783c5072e1"}}