{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:7Q5WUCT2UUFTOJH6WTXMRGRT7U","short_pith_number":"pith:7Q5WUCT2","canonical_record":{"source":{"id":"0801.0862","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2008-01-06T13:38:45Z","cross_cats_sorted":[],"title_canon_sha256":"2717f2f4e2e5a84b6bff3515ac2f1b19a9fda932e9abb0b286eaec9ff9cfff61","abstract_canon_sha256":"5d3733bb28f87abc2f57d0650049e57bac8da84bc17cb8966740917cb819096a"},"schema_version":"1.0"},"canonical_sha256":"fc3b6a0a7aa50b3724feb4eec89a33fd29cf820a931a51da99a1c59aafb97f04","source":{"kind":"arxiv","id":"0801.0862","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0801.0862","created_at":"2026-05-18T04:26:54Z"},{"alias_kind":"arxiv_version","alias_value":"0801.0862v1","created_at":"2026-05-18T04:26:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0801.0862","created_at":"2026-05-18T04:26:54Z"},{"alias_kind":"pith_short_12","alias_value":"7Q5WUCT2UUFT","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"7Q5WUCT2UUFTOJH6","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"7Q5WUCT2","created_at":"2026-05-18T12:25:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:7Q5WUCT2UUFTOJH6WTXMRGRT7U","target":"record","payload":{"canonical_record":{"source":{"id":"0801.0862","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2008-01-06T13:38:45Z","cross_cats_sorted":[],"title_canon_sha256":"2717f2f4e2e5a84b6bff3515ac2f1b19a9fda932e9abb0b286eaec9ff9cfff61","abstract_canon_sha256":"5d3733bb28f87abc2f57d0650049e57bac8da84bc17cb8966740917cb819096a"},"schema_version":"1.0"},"canonical_sha256":"fc3b6a0a7aa50b3724feb4eec89a33fd29cf820a931a51da99a1c59aafb97f04","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:26:54.861439Z","signature_b64":"zjD5IMbkHOMTf6F/2jTKReY0b+lBX/bP+PEsFX9/gsxh5t3ouqDjfwzRNYaSIsSXB5lTs4WMYW+EczXR/ObBAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fc3b6a0a7aa50b3724feb4eec89a33fd29cf820a931a51da99a1c59aafb97f04","last_reissued_at":"2026-05-18T04:26:54.861016Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:26:54.861016Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0801.0862","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":"2026-05-18T04:26:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H5VkGA76aLMTrSqoIrckqj6PttL3OlsoZqjLdCqUNRL26R4+gB+yLFkcGq8OTJ5MhDsvvUyrPP6BL32qYCtQDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T18:32:07.045968Z"},"content_sha256":"9fd5f1478d4bc8433bdd0dfa2dfb83a2a32ab1ff84c33766b5ea2378e0fa8c0d","schema_version":"1.0","event_id":"sha256:9fd5f1478d4bc8433bdd0dfa2dfb83a2a32ab1ff84c33766b5ea2378e0fa8c0d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:7Q5WUCT2UUFTOJH6WTXMRGRT7U","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Avalanches in anisotropic sheared granular media","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Andr\\'es A. Pe\\~na, Hans J. Herrmann, Pedro G. Lind, Sean McNamara","submitted_at":"2008-01-06T13:38:45Z","abstract_excerpt":"We study the influence of particle shape anisotropy on the occurrence of avalanches in sheared granular media. We use molecular dynamic simulations to calculate the relative movement of two tectonic plates. % with transform boundaries. Our model considers irregular polygonal particles constituting the material within the shear zone. We find that the magnitude of the avalanches is approximately independent on particle shape and in good agreement with the Gutenberg-Richter law, but the aftershock sequences are strongly influenced by the particle anisotropy yielding variations on the exponent cha"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0801.0862","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":"2026-05-18T04:26:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rutnaUQJX7zVkzBNWrlBLXdCpXJcNRUDKZrhGh6yxDBKxeXLjr2JFdyDrQbR2yvIWyNkhInfyk4mrHYD+gVZBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T18:32:07.046640Z"},"content_sha256":"b73013f515e4d031e0725f4ff64614bd0d8e6b50721fae0fb2a6166866a21d1e","schema_version":"1.0","event_id":"sha256:b73013f515e4d031e0725f4ff64614bd0d8e6b50721fae0fb2a6166866a21d1e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7Q5WUCT2UUFTOJH6WTXMRGRT7U/bundle.json","state_url":"https://pith.science/pith/7Q5WUCT2UUFTOJH6WTXMRGRT7U/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7Q5WUCT2UUFTOJH6WTXMRGRT7U/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":"2026-05-28T18:32:07Z","links":{"resolver":"https://pith.science/pith/7Q5WUCT2UUFTOJH6WTXMRGRT7U","bundle":"https://pith.science/pith/7Q5WUCT2UUFTOJH6WTXMRGRT7U/bundle.json","state":"https://pith.science/pith/7Q5WUCT2UUFTOJH6WTXMRGRT7U/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7Q5WUCT2UUFTOJH6WTXMRGRT7U/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:7Q5WUCT2UUFTOJH6WTXMRGRT7U","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":"5d3733bb28f87abc2f57d0650049e57bac8da84bc17cb8966740917cb819096a","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2008-01-06T13:38:45Z","title_canon_sha256":"2717f2f4e2e5a84b6bff3515ac2f1b19a9fda932e9abb0b286eaec9ff9cfff61"},"schema_version":"1.0","source":{"id":"0801.0862","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0801.0862","created_at":"2026-05-18T04:26:54Z"},{"alias_kind":"arxiv_version","alias_value":"0801.0862v1","created_at":"2026-05-18T04:26:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0801.0862","created_at":"2026-05-18T04:26:54Z"},{"alias_kind":"pith_short_12","alias_value":"7Q5WUCT2UUFT","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"7Q5WUCT2UUFTOJH6","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"7Q5WUCT2","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:b73013f515e4d031e0725f4ff64614bd0d8e6b50721fae0fb2a6166866a21d1e","target":"graph","created_at":"2026-05-18T04:26:54Z","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"},"paper":{"abstract_excerpt":"We study the influence of particle shape anisotropy on the occurrence of avalanches in sheared granular media. We use molecular dynamic simulations to calculate the relative movement of two tectonic plates. % with transform boundaries. Our model considers irregular polygonal particles constituting the material within the shear zone. We find that the magnitude of the avalanches is approximately independent on particle shape and in good agreement with the Gutenberg-Richter law, but the aftershock sequences are strongly influenced by the particle anisotropy yielding variations on the exponent cha","authors_text":"Andr\\'es A. Pe\\~na, Hans J. Herrmann, Pedro G. Lind, Sean McNamara","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2008-01-06T13:38:45Z","title":"Avalanches in anisotropic sheared granular media"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0801.0862","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":"sha256:9fd5f1478d4bc8433bdd0dfa2dfb83a2a32ab1ff84c33766b5ea2378e0fa8c0d","target":"record","created_at":"2026-05-18T04:26:54Z","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":"5d3733bb28f87abc2f57d0650049e57bac8da84bc17cb8966740917cb819096a","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2008-01-06T13:38:45Z","title_canon_sha256":"2717f2f4e2e5a84b6bff3515ac2f1b19a9fda932e9abb0b286eaec9ff9cfff61"},"schema_version":"1.0","source":{"id":"0801.0862","kind":"arxiv","version":1}},"canonical_sha256":"fc3b6a0a7aa50b3724feb4eec89a33fd29cf820a931a51da99a1c59aafb97f04","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fc3b6a0a7aa50b3724feb4eec89a33fd29cf820a931a51da99a1c59aafb97f04","first_computed_at":"2026-05-18T04:26:54.861016Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:26:54.861016Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zjD5IMbkHOMTf6F/2jTKReY0b+lBX/bP+PEsFX9/gsxh5t3ouqDjfwzRNYaSIsSXB5lTs4WMYW+EczXR/ObBAA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:26:54.861439Z","signed_message":"canonical_sha256_bytes"},"source_id":"0801.0862","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9fd5f1478d4bc8433bdd0dfa2dfb83a2a32ab1ff84c33766b5ea2378e0fa8c0d","sha256:b73013f515e4d031e0725f4ff64614bd0d8e6b50721fae0fb2a6166866a21d1e"],"state_sha256":"7fb47baddeead642645ee03a3cf2a2b874ed53da64c18f2ba0cdecd88c1dd75f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8+N48Ivw2xAdK+/hKYRz9dPmSNITaOyRAWt12d61sbXu7cdaL46wKACT3qKb0QovSI+6s0yTL5TmxUoRk8/3BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T18:32:07.051559Z","bundle_sha256":"0ca170202661b73262304c3fb4a3e972dc6671d917354a3fa0e8adde8c095513"}}