{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:PHDWSUSUPRORAVD2YJFTPBGJFT","short_pith_number":"pith:PHDWSUSU","canonical_record":{"source":{"id":"1112.1625","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2011-12-07T17:02:11Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"f60f9d8972ccb88ff1b7179520360543fec164768e6b909e58ec7ec8a9498139","abstract_canon_sha256":"a11ea9c59d46cb05477dbefd6528c1a834d1555d09acb05a4d84c83707619620"},"schema_version":"1.0"},"canonical_sha256":"79c76952547c5d10547ac24b3784c92cc3747f87bdd1d8ff525d902588210b93","source":{"kind":"arxiv","id":"1112.1625","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.1625","created_at":"2026-05-18T04:06:54Z"},{"alias_kind":"arxiv_version","alias_value":"1112.1625v1","created_at":"2026-05-18T04:06:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.1625","created_at":"2026-05-18T04:06:54Z"},{"alias_kind":"pith_short_12","alias_value":"PHDWSUSUPROR","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"PHDWSUSUPRORAVD2","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"PHDWSUSU","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:PHDWSUSUPRORAVD2YJFTPBGJFT","target":"record","payload":{"canonical_record":{"source":{"id":"1112.1625","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2011-12-07T17:02:11Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"f60f9d8972ccb88ff1b7179520360543fec164768e6b909e58ec7ec8a9498139","abstract_canon_sha256":"a11ea9c59d46cb05477dbefd6528c1a834d1555d09acb05a4d84c83707619620"},"schema_version":"1.0"},"canonical_sha256":"79c76952547c5d10547ac24b3784c92cc3747f87bdd1d8ff525d902588210b93","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:06:54.243928Z","signature_b64":"iFwtBoxRjVxTyPxe/yS55bHZ3ROXMOyfZTqWQxDhW4YIRX9KDAWlieUASWFbSgl/2Yth0gO8CnYD4hdwYE98DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"79c76952547c5d10547ac24b3784c92cc3747f87bdd1d8ff525d902588210b93","last_reissued_at":"2026-05-18T04:06:54.243510Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:06:54.243510Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1112.1625","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":"2026-05-18T04:06:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jZjXXDQBS82sNXg3Yjvoa41l1S/yqIOtas6z56bQPJdvmyBHrUT6W47qql8jU/iO/dr8kqxXbVtyF6Fla8ehAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T06:46:00.163577Z"},"content_sha256":"b10cc3f6591efcdc3c65201ae9e015b6325803f4421c3c310935dd3741ed3165","schema_version":"1.0","event_id":"sha256:b10cc3f6591efcdc3c65201ae9e015b6325803f4421c3c310935dd3741ed3165"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:PHDWSUSUPRORAVD2YJFTPBGJFT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Glass Transition Temperature in Polystyrene Supported Thin Films: a SPM-based Investigation of the Role of Molecular Entanglement","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.soft","authors_text":"Andrea Ricci, Franco Dinelli, Manjunath Puttaswamy, Paolo Baschieri, Pasqualantonio Pingue, Peter Kingshott, Tommaso Sgrilli","submitted_at":"2011-12-07T17:02:11Z","abstract_excerpt":"The viscoelastic properties of thin polymeric films represent a central issue, especially for nanotechnological applications. In particular, it is highly relevant the dependence of viscoelasticity on the temperature. For polystyrene it is known that the glass transition temperature is dependent on the film thickness. At present, there is wide agreement on the importance of the two interfaces that the films form with the air and with the substrate. The relevance of molecular entanglement has been also stressed for the case of suspended films. However, the role of molecular entanglement on the g"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.1625","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":"2026-05-18T04:06:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4mSmfngvrwnaMfrQ9QFEvu/kAP1vzY6lbkubM3SuklJGjNPz5UbJT26ZNdu1OYZOW8ny5i1TpPWIqrhaNGZkDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T06:46:00.163946Z"},"content_sha256":"d902a346d86b049005e49485bfc4cd107593064e9976cd9c7d7cc9c2c8fd207e","schema_version":"1.0","event_id":"sha256:d902a346d86b049005e49485bfc4cd107593064e9976cd9c7d7cc9c2c8fd207e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PHDWSUSUPRORAVD2YJFTPBGJFT/bundle.json","state_url":"https://pith.science/pith/PHDWSUSUPRORAVD2YJFTPBGJFT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PHDWSUSUPRORAVD2YJFTPBGJFT/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":"2026-06-04T06:46:00Z","links":{"resolver":"https://pith.science/pith/PHDWSUSUPRORAVD2YJFTPBGJFT","bundle":"https://pith.science/pith/PHDWSUSUPRORAVD2YJFTPBGJFT/bundle.json","state":"https://pith.science/pith/PHDWSUSUPRORAVD2YJFTPBGJFT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PHDWSUSUPRORAVD2YJFTPBGJFT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:PHDWSUSUPRORAVD2YJFTPBGJFT","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":"a11ea9c59d46cb05477dbefd6528c1a834d1555d09acb05a4d84c83707619620","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2011-12-07T17:02:11Z","title_canon_sha256":"f60f9d8972ccb88ff1b7179520360543fec164768e6b909e58ec7ec8a9498139"},"schema_version":"1.0","source":{"id":"1112.1625","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.1625","created_at":"2026-05-18T04:06:54Z"},{"alias_kind":"arxiv_version","alias_value":"1112.1625v1","created_at":"2026-05-18T04:06:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.1625","created_at":"2026-05-18T04:06:54Z"},{"alias_kind":"pith_short_12","alias_value":"PHDWSUSUPROR","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"PHDWSUSUPRORAVD2","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"PHDWSUSU","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:d902a346d86b049005e49485bfc4cd107593064e9976cd9c7d7cc9c2c8fd207e","target":"graph","created_at":"2026-05-18T04:06:54Z","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 viscoelastic properties of thin polymeric films represent a central issue, especially for nanotechnological applications. In particular, it is highly relevant the dependence of viscoelasticity on the temperature. For polystyrene it is known that the glass transition temperature is dependent on the film thickness. At present, there is wide agreement on the importance of the two interfaces that the films form with the air and with the substrate. The relevance of molecular entanglement has been also stressed for the case of suspended films. However, the role of molecular entanglement on the g","authors_text":"Andrea Ricci, Franco Dinelli, Manjunath Puttaswamy, Paolo Baschieri, Pasqualantonio Pingue, Peter Kingshott, Tommaso Sgrilli","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2011-12-07T17:02:11Z","title":"Glass Transition Temperature in Polystyrene Supported Thin Films: a SPM-based Investigation of the Role of Molecular Entanglement"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.1625","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:b10cc3f6591efcdc3c65201ae9e015b6325803f4421c3c310935dd3741ed3165","target":"record","created_at":"2026-05-18T04:06:54Z","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":"a11ea9c59d46cb05477dbefd6528c1a834d1555d09acb05a4d84c83707619620","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2011-12-07T17:02:11Z","title_canon_sha256":"f60f9d8972ccb88ff1b7179520360543fec164768e6b909e58ec7ec8a9498139"},"schema_version":"1.0","source":{"id":"1112.1625","kind":"arxiv","version":1}},"canonical_sha256":"79c76952547c5d10547ac24b3784c92cc3747f87bdd1d8ff525d902588210b93","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"79c76952547c5d10547ac24b3784c92cc3747f87bdd1d8ff525d902588210b93","first_computed_at":"2026-05-18T04:06:54.243510Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:06:54.243510Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iFwtBoxRjVxTyPxe/yS55bHZ3ROXMOyfZTqWQxDhW4YIRX9KDAWlieUASWFbSgl/2Yth0gO8CnYD4hdwYE98DA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:06:54.243928Z","signed_message":"canonical_sha256_bytes"},"source_id":"1112.1625","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b10cc3f6591efcdc3c65201ae9e015b6325803f4421c3c310935dd3741ed3165","sha256:d902a346d86b049005e49485bfc4cd107593064e9976cd9c7d7cc9c2c8fd207e"],"state_sha256":"87dc6698029de1cc0ba5b2d1fddec358a711d4b282826ae8efb91a53793af59c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z26GfaZQGnSJx1CB5tRgpV9gSucSfY3ga68GxlBQThz+uhLYLeRydazVWw1De2SH2oxHNjbTQ3wXbI2jtqTuBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T06:46:00.166188Z","bundle_sha256":"e1541c9e2d88e8bd24f4b18828baf123b1f4ecb7d81702227a1f4454cb066359"}}