{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:BRS2KVHIDGQTKINXPCHEPUAKGL","short_pith_number":"pith:BRS2KVHI","canonical_record":{"source":{"id":"1901.09569","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-01-28T09:35:09Z","cross_cats_sorted":[],"title_canon_sha256":"c0ed5a01ad222a09b844765522d1ff66666ec1273c7be48ef378cd588c592a57","abstract_canon_sha256":"6477701d78682a88169aba6f63810e6d28812d67ccf8eb26a0cf52d00d90c3b6"},"schema_version":"1.0"},"canonical_sha256":"0c65a554e819a13521b7788e47d00a32eebc6b8269b7085951565c9e2acbd3e4","source":{"kind":"arxiv","id":"1901.09569","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.09569","created_at":"2026-05-17T23:55:24Z"},{"alias_kind":"arxiv_version","alias_value":"1901.09569v1","created_at":"2026-05-17T23:55:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.09569","created_at":"2026-05-17T23:55:24Z"},{"alias_kind":"pith_short_12","alias_value":"BRS2KVHIDGQT","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"BRS2KVHIDGQTKINX","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"BRS2KVHI","created_at":"2026-05-18T12:33:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:BRS2KVHIDGQTKINXPCHEPUAKGL","target":"record","payload":{"canonical_record":{"source":{"id":"1901.09569","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-01-28T09:35:09Z","cross_cats_sorted":[],"title_canon_sha256":"c0ed5a01ad222a09b844765522d1ff66666ec1273c7be48ef378cd588c592a57","abstract_canon_sha256":"6477701d78682a88169aba6f63810e6d28812d67ccf8eb26a0cf52d00d90c3b6"},"schema_version":"1.0"},"canonical_sha256":"0c65a554e819a13521b7788e47d00a32eebc6b8269b7085951565c9e2acbd3e4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:24.444586Z","signature_b64":"PUyBFqQfUyrVa3HtH6+2OpvAY5RFCEFreEg1hDWMTgzyBbPgN/Ite1GKZO/tw4+0aq3t2D0cyXNk5WUhovJ9DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0c65a554e819a13521b7788e47d00a32eebc6b8269b7085951565c9e2acbd3e4","last_reissued_at":"2026-05-17T23:55:24.444117Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:24.444117Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.09569","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":"2026-05-17T23:55:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DEtVSq+aFeu8TrnA/tiqHhTt/HqSiNRnqP5ImvUvTp83QSZfFzopE2480bScGgwJDzlvm8nLIlp5G3oHRkqlDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T13:03:52.339694Z"},"content_sha256":"0e2fea6e154a1a6d0edeaacf9544bc490dc0eb930a45ea8361ac0506370dc5b4","schema_version":"1.0","event_id":"sha256:0e2fea6e154a1a6d0edeaacf9544bc490dc0eb930a45ea8361ac0506370dc5b4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:BRS2KVHIDGQTKINXPCHEPUAKGL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Behavior of confined granular beds under cyclic thermal loading","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Andreas Haselbacher, Elena Giacomazzi, Falk K. Wittel, Hans J. Herrmann, Miller Mendoza, Pavel S. Iliev","submitted_at":"2019-01-28T09:35:09Z","abstract_excerpt":"We investigate the mechanical behavior of a confined granular packing of irregular polyhedral particles under repeated heating and cooling cycles by means of numerical simulations with the Non-Smooth Contact Dynamics method. Assuming a homogeneous temperature distribution as well as constant temperature rate, we study the effect of the container shape, and coefficients of thermal expansions on the pressure buildup at the confining walls and the density evolution. We observe that small changes in the opening angle of the confinement can lead to a drastic peak pressure reduction. Furthermore, th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.09569","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":"2026-05-17T23:55:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ssc+FkR8bttOpimnyNSVB1HSFUfxj/iAGqNfX4Yf8/aMXY4r95/fZ5ObUVS/lTdZXBrroKKH+21aCQ1Sq3sUBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T13:03:52.340154Z"},"content_sha256":"a5cc63082c986598652cad712c596ca30618b2083555bf6ce6be9544fe107611","schema_version":"1.0","event_id":"sha256:a5cc63082c986598652cad712c596ca30618b2083555bf6ce6be9544fe107611"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BRS2KVHIDGQTKINXPCHEPUAKGL/bundle.json","state_url":"https://pith.science/pith/BRS2KVHIDGQTKINXPCHEPUAKGL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BRS2KVHIDGQTKINXPCHEPUAKGL/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":"2026-05-31T13:03:52Z","links":{"resolver":"https://pith.science/pith/BRS2KVHIDGQTKINXPCHEPUAKGL","bundle":"https://pith.science/pith/BRS2KVHIDGQTKINXPCHEPUAKGL/bundle.json","state":"https://pith.science/pith/BRS2KVHIDGQTKINXPCHEPUAKGL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BRS2KVHIDGQTKINXPCHEPUAKGL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:BRS2KVHIDGQTKINXPCHEPUAKGL","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":"6477701d78682a88169aba6f63810e6d28812d67ccf8eb26a0cf52d00d90c3b6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-01-28T09:35:09Z","title_canon_sha256":"c0ed5a01ad222a09b844765522d1ff66666ec1273c7be48ef378cd588c592a57"},"schema_version":"1.0","source":{"id":"1901.09569","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.09569","created_at":"2026-05-17T23:55:24Z"},{"alias_kind":"arxiv_version","alias_value":"1901.09569v1","created_at":"2026-05-17T23:55:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.09569","created_at":"2026-05-17T23:55:24Z"},{"alias_kind":"pith_short_12","alias_value":"BRS2KVHIDGQT","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"BRS2KVHIDGQTKINX","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"BRS2KVHI","created_at":"2026-05-18T12:33:12Z"}],"graph_snapshots":[{"event_id":"sha256:a5cc63082c986598652cad712c596ca30618b2083555bf6ce6be9544fe107611","target":"graph","created_at":"2026-05-17T23:55:24Z","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 investigate the mechanical behavior of a confined granular packing of irregular polyhedral particles under repeated heating and cooling cycles by means of numerical simulations with the Non-Smooth Contact Dynamics method. Assuming a homogeneous temperature distribution as well as constant temperature rate, we study the effect of the container shape, and coefficients of thermal expansions on the pressure buildup at the confining walls and the density evolution. We observe that small changes in the opening angle of the confinement can lead to a drastic peak pressure reduction. Furthermore, th","authors_text":"Andreas Haselbacher, Elena Giacomazzi, Falk K. Wittel, Hans J. Herrmann, Miller Mendoza, Pavel S. Iliev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-01-28T09:35:09Z","title":"Behavior of confined granular beds under cyclic thermal loading"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.09569","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":"sha256:0e2fea6e154a1a6d0edeaacf9544bc490dc0eb930a45ea8361ac0506370dc5b4","target":"record","created_at":"2026-05-17T23:55:24Z","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":"6477701d78682a88169aba6f63810e6d28812d67ccf8eb26a0cf52d00d90c3b6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-01-28T09:35:09Z","title_canon_sha256":"c0ed5a01ad222a09b844765522d1ff66666ec1273c7be48ef378cd588c592a57"},"schema_version":"1.0","source":{"id":"1901.09569","kind":"arxiv","version":1}},"canonical_sha256":"0c65a554e819a13521b7788e47d00a32eebc6b8269b7085951565c9e2acbd3e4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0c65a554e819a13521b7788e47d00a32eebc6b8269b7085951565c9e2acbd3e4","first_computed_at":"2026-05-17T23:55:24.444117Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:24.444117Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PUyBFqQfUyrVa3HtH6+2OpvAY5RFCEFreEg1hDWMTgzyBbPgN/Ite1GKZO/tw4+0aq3t2D0cyXNk5WUhovJ9DQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:24.444586Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.09569","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e2fea6e154a1a6d0edeaacf9544bc490dc0eb930a45ea8361ac0506370dc5b4","sha256:a5cc63082c986598652cad712c596ca30618b2083555bf6ce6be9544fe107611"],"state_sha256":"6651ec1acfe66bb4a8d555a885b4746d4b839f770b956efe482d7fef8edda8ec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mmOVqEN6DeACkcnx/fjWIXGM8Zs/EWoVIrrpjz9syvhS8KXLM4IcnqhvvIJEWPdGGhLWnRC/xQ6x11o98W2QDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T13:03:52.343146Z","bundle_sha256":"d20316c924ab56b8b4e3269bd7c7e322b18a6ef55d02fc015692a050a6478cb1"}}