{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:JZEFWKK3U3NRQQPVE5T4CMDRAI","short_pith_number":"pith:JZEFWKK3","canonical_record":{"source":{"id":"2607.17925","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-20T13:20:51Z","cross_cats_sorted":[],"title_canon_sha256":"2986e524509981e3cd4ce1037f005a8fe57f85fe26369d2bceabbe85457cd894","abstract_canon_sha256":"b5d73aaba774a2f30bc0873a057d9724a307c77e817596e4013d10a843dd3038"},"schema_version":"1.0"},"canonical_sha256":"4e485b295ba6db1841f52767c1307102261fbb2c51df4842e4e68b99b5054ee2","source":{"kind":"arxiv","id":"2607.17925","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.17925","created_at":"2026-07-21T02:22:06Z"},{"alias_kind":"arxiv_version","alias_value":"2607.17925v1","created_at":"2026-07-21T02:22:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.17925","created_at":"2026-07-21T02:22:06Z"},{"alias_kind":"pith_short_12","alias_value":"JZEFWKK3U3NR","created_at":"2026-07-21T02:22:06Z"},{"alias_kind":"pith_short_16","alias_value":"JZEFWKK3U3NRQQPV","created_at":"2026-07-21T02:22:06Z"},{"alias_kind":"pith_short_8","alias_value":"JZEFWKK3","created_at":"2026-07-21T02:22:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:JZEFWKK3U3NRQQPVE5T4CMDRAI","target":"record","payload":{"canonical_record":{"source":{"id":"2607.17925","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-20T13:20:51Z","cross_cats_sorted":[],"title_canon_sha256":"2986e524509981e3cd4ce1037f005a8fe57f85fe26369d2bceabbe85457cd894","abstract_canon_sha256":"b5d73aaba774a2f30bc0873a057d9724a307c77e817596e4013d10a843dd3038"},"schema_version":"1.0"},"canonical_sha256":"4e485b295ba6db1841f52767c1307102261fbb2c51df4842e4e68b99b5054ee2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-21T02:22:06.897980Z","signature_b64":"XVWKsmek9uOxXzkRezLvF5iUuKaXucuZL0oabuamPKRSIELrV+PpJ2QPA9V1BdzjS2UF4/gJAzqbZWpwDQdRAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4e485b295ba6db1841f52767c1307102261fbb2c51df4842e4e68b99b5054ee2","last_reissued_at":"2026-07-21T02:22:06.897163Z","signature_status":"signed_v1","first_computed_at":"2026-07-21T02:22:06.897163Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.17925","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":"2026-07-21T02:22:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9nZHdcu14u39iJlpog4MrIUVeNRbNRIqE3qWrG4amRph4+CSo0dl9oK82/kN+AF3zi4KA4pS/lD65Exf9aIMAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T21:24:46.557741Z"},"content_sha256":"139c15908933e343ed9bbe7a6a85bc25741431f77e0603969e8acc5909ebb736","schema_version":"1.0","event_id":"sha256:139c15908933e343ed9bbe7a6a85bc25741431f77e0603969e8acc5909ebb736"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:JZEFWKK3U3NRQQPVE5T4CMDRAI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Informatics Modeling of High Tg Polymers: Assessing the Role of Processing versus Chemistry","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Qinrui Liu, Scott R. Broderick","submitted_at":"2026-07-20T13:20:51Z","abstract_excerpt":"Despite the advances in structure-based modeling of polymer properties, accurately predicting glass transition temperature (Tg) is still challenging for polymers whose behavior is strongly influenced by intermolecular interactions and processing conditions. We previously developed a machine-learning model based on polymer topological descriptors to predict Tg. The model performed well and was based solely on the chemistry and structure of the polymer without any inclusion of processing parameters. In this work, we have extended that work by first applying that same model to a larger range of p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.17925","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/2607.17925/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":"2026-07-21T02:22:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"skPJR3LT7MZHjO7Kta+2gfUUFrGUsbvjny8qn9BacBdhkWK4RCxfmUPcDL2qOEiwT+xSKLs3M3cQ+vgFNvXMBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T21:24:46.558245Z"},"content_sha256":"b5530285d8ef98735e9a9910381154c2d0bcff36b07230a25e226a2a8d1d641d","schema_version":"1.0","event_id":"sha256:b5530285d8ef98735e9a9910381154c2d0bcff36b07230a25e226a2a8d1d641d"},{"event_type":"integrity_finding","subject_pith_number":"pith:2026:JZEFWKK3U3NRQQPVE5T4CMDRAI","target":"integrity","payload":{"note":"Identifier '10.1002/polb.2340' is syntactically valid but the DOI registry (doi.org) returned 404, and Crossref / OpenAlex / internal corpus also have no record. The cited work could not be located through any authoritative source.","snippet":"A. Perry, K., L. More, K., Andrew Payzant, E., Meisner, R. A., Sumpter, B. G., & Benicewicz, B. C. (2014). A comparative study of phosphoric acid-doped m-PBI membranes. Journal of Polymer Science. Part B, Polymer Physics, 52(1), 26–35. http","arxiv_id":"2607.17925","detector":"doi_compliance","evidence":{"doi":"10.1002/polb.2340","arxiv_id":null,"ref_index":12,"raw_excerpt":"A. Perry, K., L. More, K., Andrew Payzant, E., Meisner, R. A., Sumpter, B. G., & Benicewicz, B. C. (2014). A comparative study of phosphoric acid-doped m-PBI membranes. Journal of Polymer Science. Part B, Polymer Physics, 52(1), 26–35. https://doi.org/10.1002/polb.2340","parse_status":"well_formed","verdict_class":"cross_source","checked_sources":["crossref_by_doi","openalex_by_doi","doi_org_head"],"resolution_status":"hard_miss"},"severity":"critical","ref_index":12,"audited_at":"2026-08-01T16:49:08.103093Z","event_type":"pith.integrity.v1","detected_doi":"10.1002/polb.2340","detector_url":"https://pith.science/pith-integrity-protocol#doi_compliance","external_url":null,"finding_type":"unresolvable_identifier","evidence_hash":"da483e43447af48b29f02909b855942e7eef0724490131dae47d9d34eac81330","paper_version":1,"verdict_class":"cross_source","resolved_title":null,"detector_version":"1.1.0","detected_arxiv_id":null,"integrity_event_id":16237,"payload_sha256":"40c1dc5b213a103e1036676a4d481847c620fe0fb083f937dd167b5d3451a03a","signature_b64":"fguGKwBs908SYCqqRXq5p92QV+Bvr8MJVCu4l9aHNPY1HKQN754X0HuDMcfMTl/0MddnEQ26cUNBvOC0YTwCDA==","signing_key_id":"pith-v1-2026-05"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-08-01T16:53:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gmmcVfCD7epPJZO1lKuVYDf8pixNF+doHC4SlejI5+6hK+v5xA0C/xtISXDcAGfypPAZ4zKpXr8ZpaXBe8mOBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T21:24:46.561201Z"},"content_sha256":"8dec8777bc6c02b3a6481804054503401d84aa6dcd2288625cab35b15594a5f1","schema_version":"1.0","event_id":"sha256:8dec8777bc6c02b3a6481804054503401d84aa6dcd2288625cab35b15594a5f1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JZEFWKK3U3NRQQPVE5T4CMDRAI/bundle.json","state_url":"https://pith.science/pith/JZEFWKK3U3NRQQPVE5T4CMDRAI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JZEFWKK3U3NRQQPVE5T4CMDRAI/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":"2026-08-21T21:24:46Z","links":{"resolver":"https://pith.science/pith/JZEFWKK3U3NRQQPVE5T4CMDRAI","bundle":"https://pith.science/pith/JZEFWKK3U3NRQQPVE5T4CMDRAI/bundle.json","state":"https://pith.science/pith/JZEFWKK3U3NRQQPVE5T4CMDRAI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JZEFWKK3U3NRQQPVE5T4CMDRAI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:JZEFWKK3U3NRQQPVE5T4CMDRAI","merge_version":"pith-open-graph-merge-v1","event_count":3,"valid_event_count":3,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"b5d73aaba774a2f30bc0873a057d9724a307c77e817596e4013d10a843dd3038","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-20T13:20:51Z","title_canon_sha256":"2986e524509981e3cd4ce1037f005a8fe57f85fe26369d2bceabbe85457cd894"},"schema_version":"1.0","source":{"id":"2607.17925","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.17925","created_at":"2026-07-21T02:22:06Z"},{"alias_kind":"arxiv_version","alias_value":"2607.17925v1","created_at":"2026-07-21T02:22:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.17925","created_at":"2026-07-21T02:22:06Z"},{"alias_kind":"pith_short_12","alias_value":"JZEFWKK3U3NR","created_at":"2026-07-21T02:22:06Z"},{"alias_kind":"pith_short_16","alias_value":"JZEFWKK3U3NRQQPV","created_at":"2026-07-21T02:22:06Z"},{"alias_kind":"pith_short_8","alias_value":"JZEFWKK3","created_at":"2026-07-21T02:22:06Z"}],"graph_snapshots":[{"event_id":"sha256:b5530285d8ef98735e9a9910381154c2d0bcff36b07230a25e226a2a8d1d641d","target":"graph","created_at":"2026-07-21T02:22:06Z","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/2607.17925/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Despite the advances in structure-based modeling of polymer properties, accurately predicting glass transition temperature (Tg) is still challenging for polymers whose behavior is strongly influenced by intermolecular interactions and processing conditions. We previously developed a machine-learning model based on polymer topological descriptors to predict Tg. The model performed well and was based solely on the chemistry and structure of the polymer without any inclusion of processing parameters. In this work, we have extended that work by first applying that same model to a larger range of p","authors_text":"Qinrui Liu, Scott R. Broderick","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-20T13:20:51Z","title":"Informatics Modeling of High Tg Polymers: Assessing the Role of Processing versus Chemistry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.17925","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":"sha256:139c15908933e343ed9bbe7a6a85bc25741431f77e0603969e8acc5909ebb736","target":"record","created_at":"2026-07-21T02:22:06Z","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":"b5d73aaba774a2f30bc0873a057d9724a307c77e817596e4013d10a843dd3038","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-20T13:20:51Z","title_canon_sha256":"2986e524509981e3cd4ce1037f005a8fe57f85fe26369d2bceabbe85457cd894"},"schema_version":"1.0","source":{"id":"2607.17925","kind":"arxiv","version":1}},"canonical_sha256":"4e485b295ba6db1841f52767c1307102261fbb2c51df4842e4e68b99b5054ee2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4e485b295ba6db1841f52767c1307102261fbb2c51df4842e4e68b99b5054ee2","first_computed_at":"2026-07-21T02:22:06.897163Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-21T02:22:06.897163Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XVWKsmek9uOxXzkRezLvF5iUuKaXucuZL0oabuamPKRSIELrV+PpJ2QPA9V1BdzjS2UF4/gJAzqbZWpwDQdRAw==","signature_status":"signed_v1","signed_at":"2026-07-21T02:22:06.897980Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.17925","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:139c15908933e343ed9bbe7a6a85bc25741431f77e0603969e8acc5909ebb736","sha256:b5530285d8ef98735e9a9910381154c2d0bcff36b07230a25e226a2a8d1d641d","sha256:8dec8777bc6c02b3a6481804054503401d84aa6dcd2288625cab35b15594a5f1"],"state_sha256":"1619e10e521ab42e374d0556e74e4b40207e0bc6ff23710e8046cf26c82490f2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QUqChrS3jPEzP4v3e97LKNwR8FpFGRzNPNqed3zRe1+8t6MC7XKMAl1R9SMlZ/plFmFTx5eY0tEYhcTGgS2iCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T21:24:46.563446Z","bundle_sha256":"a996f42cf369b8fe316e7c3ba2aad9a461205a19299e58f5a1c800a2414266a0"}}