{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:DWIML75EGJ63E6EQQW2VBHMI47","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":"2c9444be4f0e8e04c5eba10fd1b73863c00fdabd60e5db8aeee7088de96b3248","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-09-02T10:26:24Z","title_canon_sha256":"d97d6cc7b552fb9a8edf269a0c6038d398a09a8146756cc5abdaca7836bb651e"},"schema_version":"1.0","source":{"id":"1509.00631","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.00631","created_at":"2026-05-18T01:22:18Z"},{"alias_kind":"arxiv_version","alias_value":"1509.00631v2","created_at":"2026-05-18T01:22:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.00631","created_at":"2026-05-18T01:22:18Z"},{"alias_kind":"pith_short_12","alias_value":"DWIML75EGJ63","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"DWIML75EGJ63E6EQ","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"DWIML75E","created_at":"2026-05-18T12:29:17Z"}],"graph_snapshots":[{"event_id":"sha256:81c45ad53b97ed4b799ec47ea02b52c3c51de0ad35a1de6fb7b7284908bb2a40","target":"graph","created_at":"2026-05-18T01:22:18Z","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":"The acoustic emission from breaking a bamboo chopstick or a bundle of spaghetti is found to exhibit similar behavior as the famous seismic laws of Gutenberg-Richter, Omori, and Bath. By use of a force-sensing detector, we establish a positive correlation between the statistics of sound intensity and the magnitude of tremor. We also manage to derive these laws analytically without invoking the concept of phase transition, self-organized criticality, or fractal. Our model is deterministic and relies on the existence of a structured cross section, either fibrous or layered. This success at explai","authors_text":"Chin-De Chang, Li-Min Wang, Panpan Huang, Sun-Ting Tsai, Tzay-Ming Hong, Zhengning Yang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-09-02T10:26:24Z","title":"Acoustic Emission from Breaking a Bamboo Chopstick"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.00631","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":"sha256:1bdb17c86b38485855c74c07e3031b9270b68bf96c696574b601b998cb22c59e","target":"record","created_at":"2026-05-18T01:22:18Z","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":"2c9444be4f0e8e04c5eba10fd1b73863c00fdabd60e5db8aeee7088de96b3248","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-09-02T10:26:24Z","title_canon_sha256":"d97d6cc7b552fb9a8edf269a0c6038d398a09a8146756cc5abdaca7836bb651e"},"schema_version":"1.0","source":{"id":"1509.00631","kind":"arxiv","version":2}},"canonical_sha256":"1d90c5ffa4327db2789085b5509d88e7e8ef1cfac244d47d8e52eb545c0596f7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1d90c5ffa4327db2789085b5509d88e7e8ef1cfac244d47d8e52eb545c0596f7","first_computed_at":"2026-05-18T01:22:18.488725Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:18.488725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"37QvALGbsiBeCmrRwRbhOzHex44I7m23VrE7+9ETx9jFllb+aN+vCAuOK+6Gtt8L25btk1ksEc8aaIYuk876Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:18.489531Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.00631","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1bdb17c86b38485855c74c07e3031b9270b68bf96c696574b601b998cb22c59e","sha256:81c45ad53b97ed4b799ec47ea02b52c3c51de0ad35a1de6fb7b7284908bb2a40"],"state_sha256":"ab1086203b9abdf87e50e29b9b68ef6a01aedc0454ca36dbf66582011e16d0d2"}