{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:7GJDF55VSZL5726C33QHBCQE3Y","short_pith_number":"pith:7GJDF55V","canonical_record":{"source":{"id":"1908.03078","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-08-07T15:40:37Z","cross_cats_sorted":[],"title_canon_sha256":"4c31e2f9e968434080efe45b1dc54a89a7f5dea24bb1d9d1c32bb1e8a2f694c9","abstract_canon_sha256":"5a19ca1bca900f09b59ebd1214ac200698094d63f83260ebf77404db6da63736"},"schema_version":"1.0"},"canonical_sha256":"f99232f7b59657dfebc2dee0708a04de241a2cf6655e952192e09988f1917a2e","source":{"kind":"arxiv","id":"1908.03078","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.03078","created_at":"2026-07-05T01:01:35Z"},{"alias_kind":"arxiv_version","alias_value":"1908.03078v1","created_at":"2026-07-05T01:01:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.03078","created_at":"2026-07-05T01:01:35Z"},{"alias_kind":"pith_short_12","alias_value":"7GJDF55VSZL5","created_at":"2026-07-05T01:01:35Z"},{"alias_kind":"pith_short_16","alias_value":"7GJDF55VSZL5726C","created_at":"2026-07-05T01:01:35Z"},{"alias_kind":"pith_short_8","alias_value":"7GJDF55V","created_at":"2026-07-05T01:01:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:7GJDF55VSZL5726C33QHBCQE3Y","target":"record","payload":{"canonical_record":{"source":{"id":"1908.03078","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-08-07T15:40:37Z","cross_cats_sorted":[],"title_canon_sha256":"4c31e2f9e968434080efe45b1dc54a89a7f5dea24bb1d9d1c32bb1e8a2f694c9","abstract_canon_sha256":"5a19ca1bca900f09b59ebd1214ac200698094d63f83260ebf77404db6da63736"},"schema_version":"1.0"},"canonical_sha256":"f99232f7b59657dfebc2dee0708a04de241a2cf6655e952192e09988f1917a2e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:01:35.549333Z","signature_b64":"3ArmsNVYWEtJfETxh81DvAewYIfVRfm7w3k7M2jywAF5rrMYXiWBOu2IC4CA2UGA98K7E/6CvoIFYazK9baHCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f99232f7b59657dfebc2dee0708a04de241a2cf6655e952192e09988f1917a2e","last_reissued_at":"2026-07-05T01:01:35.548946Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:01:35.548946Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.03078","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":"2026-07-05T01:01:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pq+ooOOWtGGrCAq1uV7yeTkEVegMlzLpdqn0nEWvQZ0GB4B/+WHHbU5SMQ3T95mer/T1evGqYZkzYaL0+clbAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T16:10:38.911659Z"},"content_sha256":"3c0772befd0e3b278de3ab01d50b432445438fa63d566b8feb480fe9de40c26a","schema_version":"1.0","event_id":"sha256:3c0772befd0e3b278de3ab01d50b432445438fa63d566b8feb480fe9de40c26a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:7GJDF55VSZL5726C33QHBCQE3Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Creep failure of honeycombs made by rapid prototyping","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"H. C. Tankasala, N. A. Fleck, P. E. Seiler","submitted_at":"2019-08-07T15:40:37Z","abstract_excerpt":"Additive manufacture and rapid prototyping are versatile methods for the generation of lattice materials for applications in the creep regime. However, these techniques introduce defects that can degrade the macro-scopic creep strength. In the present study, the uniaxial tensile response of two-dimensional PMMA lattices is measured in the visco-plastic regime: tests are performed at 100C which is slightly below the glass transition temperature T g of PMMA. Both as-manufactured defects (Plateau borders and strut thickness variation) and as-designed defects (missing cell walls, solid inclusions,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.03078","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/1908.03078/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":"2026-07-05T01:01:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G8unWuGgzvGTBtLFuXXwdnuLAn8yYcbm+ikGuHU6pYTTxQ6oZfoytmfsh3uyo24Ggtq5Q9QtFWV0JRFOJx3RDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T16:10:38.912393Z"},"content_sha256":"910ef9ef9cd73b165a36c71b49f983cd6bb5332a29e4a72a56afbd2b3ce5a119","schema_version":"1.0","event_id":"sha256:910ef9ef9cd73b165a36c71b49f983cd6bb5332a29e4a72a56afbd2b3ce5a119"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7GJDF55VSZL5726C33QHBCQE3Y/bundle.json","state_url":"https://pith.science/pith/7GJDF55VSZL5726C33QHBCQE3Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7GJDF55VSZL5726C33QHBCQE3Y/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":"2026-08-16T16:10:38Z","links":{"resolver":"https://pith.science/pith/7GJDF55VSZL5726C33QHBCQE3Y","bundle":"https://pith.science/pith/7GJDF55VSZL5726C33QHBCQE3Y/bundle.json","state":"https://pith.science/pith/7GJDF55VSZL5726C33QHBCQE3Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7GJDF55VSZL5726C33QHBCQE3Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:7GJDF55VSZL5726C33QHBCQE3Y","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":"5a19ca1bca900f09b59ebd1214ac200698094d63f83260ebf77404db6da63736","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-08-07T15:40:37Z","title_canon_sha256":"4c31e2f9e968434080efe45b1dc54a89a7f5dea24bb1d9d1c32bb1e8a2f694c9"},"schema_version":"1.0","source":{"id":"1908.03078","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.03078","created_at":"2026-07-05T01:01:35Z"},{"alias_kind":"arxiv_version","alias_value":"1908.03078v1","created_at":"2026-07-05T01:01:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.03078","created_at":"2026-07-05T01:01:35Z"},{"alias_kind":"pith_short_12","alias_value":"7GJDF55VSZL5","created_at":"2026-07-05T01:01:35Z"},{"alias_kind":"pith_short_16","alias_value":"7GJDF55VSZL5726C","created_at":"2026-07-05T01:01:35Z"},{"alias_kind":"pith_short_8","alias_value":"7GJDF55V","created_at":"2026-07-05T01:01:35Z"}],"graph_snapshots":[{"event_id":"sha256:910ef9ef9cd73b165a36c71b49f983cd6bb5332a29e4a72a56afbd2b3ce5a119","target":"graph","created_at":"2026-07-05T01:01:35Z","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/1908.03078/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Additive manufacture and rapid prototyping are versatile methods for the generation of lattice materials for applications in the creep regime. However, these techniques introduce defects that can degrade the macro-scopic creep strength. In the present study, the uniaxial tensile response of two-dimensional PMMA lattices is measured in the visco-plastic regime: tests are performed at 100C which is slightly below the glass transition temperature T g of PMMA. Both as-manufactured defects (Plateau borders and strut thickness variation) and as-designed defects (missing cell walls, solid inclusions,","authors_text":"H. C. Tankasala, N. A. Fleck, P. E. Seiler","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-08-07T15:40:37Z","title":"Creep failure of honeycombs made by rapid prototyping"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.03078","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":"sha256:3c0772befd0e3b278de3ab01d50b432445438fa63d566b8feb480fe9de40c26a","target":"record","created_at":"2026-07-05T01:01:35Z","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":"5a19ca1bca900f09b59ebd1214ac200698094d63f83260ebf77404db6da63736","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-08-07T15:40:37Z","title_canon_sha256":"4c31e2f9e968434080efe45b1dc54a89a7f5dea24bb1d9d1c32bb1e8a2f694c9"},"schema_version":"1.0","source":{"id":"1908.03078","kind":"arxiv","version":1}},"canonical_sha256":"f99232f7b59657dfebc2dee0708a04de241a2cf6655e952192e09988f1917a2e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f99232f7b59657dfebc2dee0708a04de241a2cf6655e952192e09988f1917a2e","first_computed_at":"2026-07-05T01:01:35.548946Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:01:35.548946Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3ArmsNVYWEtJfETxh81DvAewYIfVRfm7w3k7M2jywAF5rrMYXiWBOu2IC4CA2UGA98K7E/6CvoIFYazK9baHCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:01:35.549333Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.03078","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3c0772befd0e3b278de3ab01d50b432445438fa63d566b8feb480fe9de40c26a","sha256:910ef9ef9cd73b165a36c71b49f983cd6bb5332a29e4a72a56afbd2b3ce5a119"],"state_sha256":"42a78b43c1802e23ec04dca4a9755d93a5d9b51000f5363ee32ad09ec99ec690"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fvH/4UtjSHKvCX5iOP2Oty7ReVchNixvvqleMFs8fjWkRG7Cd9ATMn9JloVnc7FXK96rsyRv/qGFtESR0s0MCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T16:10:38.918722Z","bundle_sha256":"fa8aa3750c5f30fae5fb9cdee3ee5823647dd645293f3dc13a6c05e79c5a44b0"}}