{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:TWONB4AA53BIFOSGGNU47HHLLO","short_pith_number":"pith:TWONB4AA","canonical_record":{"source":{"id":"2603.11776","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-03-12T10:32:21Z","cross_cats_sorted":[],"title_canon_sha256":"57d5f902dc26285add54ca45a96f32cd009f8533ea2289fb62acb23bd2e1590b","abstract_canon_sha256":"c31d7bc26e9ccb4a4705b00b327dc7fe1e72e02cfbfc11cfb04976ebb64b5a1f"},"schema_version":"1.0"},"canonical_sha256":"9d9cd0f000eec282ba463369cf9ceb5b9bc61f39e117bbee2e7c757116ef6e53","source":{"kind":"arxiv","id":"2603.11776","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.11776","created_at":"2026-05-26T01:03:27Z"},{"alias_kind":"arxiv_version","alias_value":"2603.11776v1","created_at":"2026-05-26T01:03:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.11776","created_at":"2026-05-26T01:03:27Z"},{"alias_kind":"pith_short_12","alias_value":"TWONB4AA53BI","created_at":"2026-05-26T01:03:27Z"},{"alias_kind":"pith_short_16","alias_value":"TWONB4AA53BIFOSG","created_at":"2026-05-26T01:03:27Z"},{"alias_kind":"pith_short_8","alias_value":"TWONB4AA","created_at":"2026-05-26T01:03:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:TWONB4AA53BIFOSGGNU47HHLLO","target":"record","payload":{"canonical_record":{"source":{"id":"2603.11776","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-03-12T10:32:21Z","cross_cats_sorted":[],"title_canon_sha256":"57d5f902dc26285add54ca45a96f32cd009f8533ea2289fb62acb23bd2e1590b","abstract_canon_sha256":"c31d7bc26e9ccb4a4705b00b327dc7fe1e72e02cfbfc11cfb04976ebb64b5a1f"},"schema_version":"1.0"},"canonical_sha256":"9d9cd0f000eec282ba463369cf9ceb5b9bc61f39e117bbee2e7c757116ef6e53","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-26T01:03:27.873550Z","signature_b64":"20b67TGimqjFn6kIbCWdjF7d3jviRtnBR65t+o3hF/F62Y74Q4tTuYlUtD/nSpHzPvgJgB2nZgxiRz2JfuuJAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9d9cd0f000eec282ba463369cf9ceb5b9bc61f39e117bbee2e7c757116ef6e53","last_reissued_at":"2026-05-26T01:03:27.872725Z","signature_status":"signed_v1","first_computed_at":"2026-05-26T01:03:27.872725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2603.11776","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":"2026-05-26T01:03:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wQryks89EE5LGXCtTbc2yliEEpZ3m2WVhXx8SdjQw1GWhcRKxLHNf52N4bvsuq4aizT6XuuXt7gZJsQAXPWFCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T22:40:32.490008Z"},"content_sha256":"668b2bed06ef2e480f0deec00ac18f32b78d62f16c86660d16e1bf9e3adb2d61","schema_version":"1.0","event_id":"sha256:668b2bed06ef2e480f0deec00ac18f32b78d62f16c86660d16e1bf9e3adb2d61"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:TWONB4AA53BIFOSGGNU47HHLLO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Phase Separation in Heritage Objects Made of Plasticised PVC: the Case of Joseph Beuys Multiples","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Artur Michalak, Aurora Cairoli, Dominika Anio{\\l}, Dominika Pawcenis, Dorota Duraczy\\'nska, Karol G\\'orecki, Kosma Szutkowski, Krzysztof Krucza{\\l}a, {\\L}ukasz Bratasz, Marek Bucki, Marwa Saad, Sonia Bujok","submitted_at":"2026-03-12T10:32:21Z","abstract_excerpt":"This work addresses the advanced degradation of plasticised PVC boards, which constitute Joseph Beuys multiples Phosphorus-Cross Sled, focusing on the mechanisms responsible for the extensive exudation of a viscous liquid. A multi-analytical approach combining chromatographic, spectroscopic, microscopic, and mechanical techniques was employed to characterise both the exuded surface layer and the polymer bulk, and to evaluate the consequences of degradation for long-term mechanical behaviour. The experimental results are supported by density functional theory simulations, which indicate a therm"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.11776","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/2603.11776/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":"2026-05-26T01:03:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CVKEv5vJBp1BxN35d5AAryvU/iMvRmjv5A3tR+POgplVDrdWUOwRF6A1h/6r1VScisGmlWAt9s6y2ug6RwR4Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T22:40:32.490407Z"},"content_sha256":"c2f93a310af6b5e3747af504db47a04bbfc5f7cba216543ab37d55075bc0a1fd","schema_version":"1.0","event_id":"sha256:c2f93a310af6b5e3747af504db47a04bbfc5f7cba216543ab37d55075bc0a1fd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TWONB4AA53BIFOSGGNU47HHLLO/bundle.json","state_url":"https://pith.science/pith/TWONB4AA53BIFOSGGNU47HHLLO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TWONB4AA53BIFOSGGNU47HHLLO/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":"2026-06-24T22:40:32Z","links":{"resolver":"https://pith.science/pith/TWONB4AA53BIFOSGGNU47HHLLO","bundle":"https://pith.science/pith/TWONB4AA53BIFOSGGNU47HHLLO/bundle.json","state":"https://pith.science/pith/TWONB4AA53BIFOSGGNU47HHLLO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TWONB4AA53BIFOSGGNU47HHLLO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:TWONB4AA53BIFOSGGNU47HHLLO","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":"c31d7bc26e9ccb4a4705b00b327dc7fe1e72e02cfbfc11cfb04976ebb64b5a1f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-03-12T10:32:21Z","title_canon_sha256":"57d5f902dc26285add54ca45a96f32cd009f8533ea2289fb62acb23bd2e1590b"},"schema_version":"1.0","source":{"id":"2603.11776","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.11776","created_at":"2026-05-26T01:03:27Z"},{"alias_kind":"arxiv_version","alias_value":"2603.11776v1","created_at":"2026-05-26T01:03:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.11776","created_at":"2026-05-26T01:03:27Z"},{"alias_kind":"pith_short_12","alias_value":"TWONB4AA53BI","created_at":"2026-05-26T01:03:27Z"},{"alias_kind":"pith_short_16","alias_value":"TWONB4AA53BIFOSG","created_at":"2026-05-26T01:03:27Z"},{"alias_kind":"pith_short_8","alias_value":"TWONB4AA","created_at":"2026-05-26T01:03:27Z"}],"graph_snapshots":[{"event_id":"sha256:c2f93a310af6b5e3747af504db47a04bbfc5f7cba216543ab37d55075bc0a1fd","target":"graph","created_at":"2026-05-26T01:03:27Z","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/2603.11776/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This work addresses the advanced degradation of plasticised PVC boards, which constitute Joseph Beuys multiples Phosphorus-Cross Sled, focusing on the mechanisms responsible for the extensive exudation of a viscous liquid. A multi-analytical approach combining chromatographic, spectroscopic, microscopic, and mechanical techniques was employed to characterise both the exuded surface layer and the polymer bulk, and to evaluate the consequences of degradation for long-term mechanical behaviour. The experimental results are supported by density functional theory simulations, which indicate a therm","authors_text":"Artur Michalak, Aurora Cairoli, Dominika Anio{\\l}, Dominika Pawcenis, Dorota Duraczy\\'nska, Karol G\\'orecki, Kosma Szutkowski, Krzysztof Krucza{\\l}a, {\\L}ukasz Bratasz, Marek Bucki, Marwa Saad, Sonia Bujok","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-03-12T10:32:21Z","title":"Phase Separation in Heritage Objects Made of Plasticised PVC: the Case of Joseph Beuys Multiples"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.11776","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":"sha256:668b2bed06ef2e480f0deec00ac18f32b78d62f16c86660d16e1bf9e3adb2d61","target":"record","created_at":"2026-05-26T01:03:27Z","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":"c31d7bc26e9ccb4a4705b00b327dc7fe1e72e02cfbfc11cfb04976ebb64b5a1f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-03-12T10:32:21Z","title_canon_sha256":"57d5f902dc26285add54ca45a96f32cd009f8533ea2289fb62acb23bd2e1590b"},"schema_version":"1.0","source":{"id":"2603.11776","kind":"arxiv","version":1}},"canonical_sha256":"9d9cd0f000eec282ba463369cf9ceb5b9bc61f39e117bbee2e7c757116ef6e53","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9d9cd0f000eec282ba463369cf9ceb5b9bc61f39e117bbee2e7c757116ef6e53","first_computed_at":"2026-05-26T01:03:27.872725Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-26T01:03:27.872725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"20b67TGimqjFn6kIbCWdjF7d3jviRtnBR65t+o3hF/F62Y74Q4tTuYlUtD/nSpHzPvgJgB2nZgxiRz2JfuuJAg==","signature_status":"signed_v1","signed_at":"2026-05-26T01:03:27.873550Z","signed_message":"canonical_sha256_bytes"},"source_id":"2603.11776","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:668b2bed06ef2e480f0deec00ac18f32b78d62f16c86660d16e1bf9e3adb2d61","sha256:c2f93a310af6b5e3747af504db47a04bbfc5f7cba216543ab37d55075bc0a1fd"],"state_sha256":"57b8c757fae0f0410e6dcc64b42082cae00cfa677bbad254e00dbc2735ae53ba"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X6/oHbPSG4onGZI3XZWMnqnEeuy4iEuNcKAaAJS4qHaRxeCva2b1nBLBUOIwJuKfvePPpiTdryiV8cdZq59sBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T22:40:32.492476Z","bundle_sha256":"5f8d40a31c46f67e598ee6031881ebc85dd1aac0cc646e80366f1a0bce9b6861"}}