{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:KIPQW6ESMRPNPHPQDXUCGAJZNU","short_pith_number":"pith:KIPQW6ES","canonical_record":{"source":{"id":"1711.00964","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-11-02T22:44:23Z","cross_cats_sorted":[],"title_canon_sha256":"2e3e03da4efad849d9e17f98dc9ea83dcaedecb5923f1d2ecc1d579beeb90af7","abstract_canon_sha256":"aebd61facdcb23dbdd553d4b00489770e50afcc0f73b087d131c8f8b56d2558a"},"schema_version":"1.0"},"canonical_sha256":"521f0b7892645ed79df01de82301396d0eed812f2ca2fb72676f2f0ce441bdf2","source":{"kind":"arxiv","id":"1711.00964","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.00964","created_at":"2026-05-18T00:17:08Z"},{"alias_kind":"arxiv_version","alias_value":"1711.00964v1","created_at":"2026-05-18T00:17:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.00964","created_at":"2026-05-18T00:17:08Z"},{"alias_kind":"pith_short_12","alias_value":"KIPQW6ESMRPN","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"KIPQW6ESMRPNPHPQ","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"KIPQW6ES","created_at":"2026-05-18T12:31:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:KIPQW6ESMRPNPHPQDXUCGAJZNU","target":"record","payload":{"canonical_record":{"source":{"id":"1711.00964","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-11-02T22:44:23Z","cross_cats_sorted":[],"title_canon_sha256":"2e3e03da4efad849d9e17f98dc9ea83dcaedecb5923f1d2ecc1d579beeb90af7","abstract_canon_sha256":"aebd61facdcb23dbdd553d4b00489770e50afcc0f73b087d131c8f8b56d2558a"},"schema_version":"1.0"},"canonical_sha256":"521f0b7892645ed79df01de82301396d0eed812f2ca2fb72676f2f0ce441bdf2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:17:08.739829Z","signature_b64":"26FbEk8bcq3H+z4VT+SZdWm3ll6U80FFtsKl3//9QFLpnmjeyYCY77TArTWZkw/b7Xvyg0xgbH6PgssbixZiCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"521f0b7892645ed79df01de82301396d0eed812f2ca2fb72676f2f0ce441bdf2","last_reissued_at":"2026-05-18T00:17:08.739287Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:17:08.739287Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1711.00964","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":"2026-05-18T00:17:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kPRuavZFpPy+9/Be6KX69EMPXl9Z3eTWO4LnGsa8A5azgCbT97Hn26XwD34VtAHuvRyoHOkcx+Ql+oPbz2gWBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T07:01:56.962304Z"},"content_sha256":"bb39ab5c6fe1e2972c3be26e5a3cd55da1d9756ab687312c1285dec456b9b01e","schema_version":"1.0","event_id":"sha256:bb39ab5c6fe1e2972c3be26e5a3cd55da1d9756ab687312c1285dec456b9b01e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:KIPQW6ESMRPNPHPQDXUCGAJZNU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ergodicity breaking dynamics of arch collapse","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Bulbul Chakraborty, Carl Merrigan, Shubha Tewari, Sumit Kumar Birwa","submitted_at":"2017-11-02T22:44:23Z","abstract_excerpt":"Gravity driven flows such as in hoppers and silos are susceptible to clogging due to the formation of arches at the exit whose failure is the key to re-initiation of flow. In vibrated hoppers, clog durations exhibit a broad distribution, which poses a challenge for devising efficient unclogging protocols. Using numerical simulations, we demonstrate that the dynamics of arch shapes preceding failure can be modeled as a continuous time random walk (CTRW) with a broad distribution of waiting times, which breaks ergodicity. Treating arch failure as a first passage process of this random walk, we a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.00964","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":"2026-05-18T00:17:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y9VaKBxKxkmv4h1bTtozeIrg7CK7suyXqcneSTXqO23n4Ajsw8Lo017IZf2FqAVt3dxT8/hW/pffcNzgvLFaCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T07:01:56.962991Z"},"content_sha256":"52efbf2d8e9d143a7cab3a6ff7589cac654e804c1da5ddc846b9d6fd912c5180","schema_version":"1.0","event_id":"sha256:52efbf2d8e9d143a7cab3a6ff7589cac654e804c1da5ddc846b9d6fd912c5180"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KIPQW6ESMRPNPHPQDXUCGAJZNU/bundle.json","state_url":"https://pith.science/pith/KIPQW6ESMRPNPHPQDXUCGAJZNU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KIPQW6ESMRPNPHPQDXUCGAJZNU/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":"2026-05-27T07:01:56Z","links":{"resolver":"https://pith.science/pith/KIPQW6ESMRPNPHPQDXUCGAJZNU","bundle":"https://pith.science/pith/KIPQW6ESMRPNPHPQDXUCGAJZNU/bundle.json","state":"https://pith.science/pith/KIPQW6ESMRPNPHPQDXUCGAJZNU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KIPQW6ESMRPNPHPQDXUCGAJZNU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:KIPQW6ESMRPNPHPQDXUCGAJZNU","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":"aebd61facdcb23dbdd553d4b00489770e50afcc0f73b087d131c8f8b56d2558a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-11-02T22:44:23Z","title_canon_sha256":"2e3e03da4efad849d9e17f98dc9ea83dcaedecb5923f1d2ecc1d579beeb90af7"},"schema_version":"1.0","source":{"id":"1711.00964","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.00964","created_at":"2026-05-18T00:17:08Z"},{"alias_kind":"arxiv_version","alias_value":"1711.00964v1","created_at":"2026-05-18T00:17:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.00964","created_at":"2026-05-18T00:17:08Z"},{"alias_kind":"pith_short_12","alias_value":"KIPQW6ESMRPN","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"KIPQW6ESMRPNPHPQ","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"KIPQW6ES","created_at":"2026-05-18T12:31:24Z"}],"graph_snapshots":[{"event_id":"sha256:52efbf2d8e9d143a7cab3a6ff7589cac654e804c1da5ddc846b9d6fd912c5180","target":"graph","created_at":"2026-05-18T00:17:08Z","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":"Gravity driven flows such as in hoppers and silos are susceptible to clogging due to the formation of arches at the exit whose failure is the key to re-initiation of flow. In vibrated hoppers, clog durations exhibit a broad distribution, which poses a challenge for devising efficient unclogging protocols. Using numerical simulations, we demonstrate that the dynamics of arch shapes preceding failure can be modeled as a continuous time random walk (CTRW) with a broad distribution of waiting times, which breaks ergodicity. Treating arch failure as a first passage process of this random walk, we a","authors_text":"Bulbul Chakraborty, Carl Merrigan, Shubha Tewari, Sumit Kumar Birwa","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-11-02T22:44:23Z","title":"Ergodicity breaking dynamics of arch collapse"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.00964","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:bb39ab5c6fe1e2972c3be26e5a3cd55da1d9756ab687312c1285dec456b9b01e","target":"record","created_at":"2026-05-18T00:17:08Z","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":"aebd61facdcb23dbdd553d4b00489770e50afcc0f73b087d131c8f8b56d2558a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-11-02T22:44:23Z","title_canon_sha256":"2e3e03da4efad849d9e17f98dc9ea83dcaedecb5923f1d2ecc1d579beeb90af7"},"schema_version":"1.0","source":{"id":"1711.00964","kind":"arxiv","version":1}},"canonical_sha256":"521f0b7892645ed79df01de82301396d0eed812f2ca2fb72676f2f0ce441bdf2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"521f0b7892645ed79df01de82301396d0eed812f2ca2fb72676f2f0ce441bdf2","first_computed_at":"2026-05-18T00:17:08.739287Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:17:08.739287Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"26FbEk8bcq3H+z4VT+SZdWm3ll6U80FFtsKl3//9QFLpnmjeyYCY77TArTWZkw/b7Xvyg0xgbH6PgssbixZiCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:17:08.739829Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.00964","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bb39ab5c6fe1e2972c3be26e5a3cd55da1d9756ab687312c1285dec456b9b01e","sha256:52efbf2d8e9d143a7cab3a6ff7589cac654e804c1da5ddc846b9d6fd912c5180"],"state_sha256":"9c80dd5076b3bb0598132247319762bf43f429512d4a650e94964de6aab4dc8e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tUXzUJU44/1KKV6PW/C2gkCj/LLICiGasWau/eQXzIs2uK7FJ/30I/En0V288hOcwvVffXaNsyYoji6qCSjRAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T07:01:56.966593Z","bundle_sha256":"9dd3cd1a406347aa1052e1954b278fbcc761e5c4df2ba57a4b96bc24d78a45c0"}}