{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:EAQMNZJYG4X3VVWI23BZQW2XVG","short_pith_number":"pith:EAQMNZJY","canonical_record":{"source":{"id":"2606.31250","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2026-06-30T07:25:32Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"e4b947ff9f3305cb0a86499be1be840fd64596d472f1b77763186acf5560d05a","abstract_canon_sha256":"2fe2e6554d498d7c334509c75b12bb1c210f035c36807cabcab2fb158bb7bd84"},"schema_version":"1.0"},"canonical_sha256":"2020c6e538372fbad6c8d6c3985b57a9a4ef7f25c6412522744996aab4efbbbc","source":{"kind":"arxiv","id":"2606.31250","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.31250","created_at":"2026-07-01T01:17:57Z"},{"alias_kind":"arxiv_version","alias_value":"2606.31250v1","created_at":"2026-07-01T01:17:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.31250","created_at":"2026-07-01T01:17:57Z"},{"alias_kind":"pith_short_12","alias_value":"EAQMNZJYG4X3","created_at":"2026-07-01T01:17:57Z"},{"alias_kind":"pith_short_16","alias_value":"EAQMNZJYG4X3VVWI","created_at":"2026-07-01T01:17:57Z"},{"alias_kind":"pith_short_8","alias_value":"EAQMNZJY","created_at":"2026-07-01T01:17:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:EAQMNZJYG4X3VVWI23BZQW2XVG","target":"record","payload":{"canonical_record":{"source":{"id":"2606.31250","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2026-06-30T07:25:32Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"e4b947ff9f3305cb0a86499be1be840fd64596d472f1b77763186acf5560d05a","abstract_canon_sha256":"2fe2e6554d498d7c334509c75b12bb1c210f035c36807cabcab2fb158bb7bd84"},"schema_version":"1.0"},"canonical_sha256":"2020c6e538372fbad6c8d6c3985b57a9a4ef7f25c6412522744996aab4efbbbc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-01T01:17:57.151089Z","signature_b64":"1ZYCT9dnmyNs6uXs+7sWM5WvzzCEiLyt5XhcRsoKe92cVg3HuLPXO8KRJRpfFa3Ki86gco7J/ZxhveS2lSOkBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2020c6e538372fbad6c8d6c3985b57a9a4ef7f25c6412522744996aab4efbbbc","last_reissued_at":"2026-07-01T01:17:57.150617Z","signature_status":"signed_v1","first_computed_at":"2026-07-01T01:17:57.150617Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.31250","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":"2026-07-01T01:17:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H+TT/o/BSKE2UX1PLlXYCroAar4jYHPlGfIBLUte316sM0hHEX4f/SzknxrjvddZdi3RO41jeFgPoOmJ1HaiCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T11:50:39.835728Z"},"content_sha256":"ee8e395d1828d562f8c3c77cacf65baaa6d572d206bc188f5a950f3d41026c48","schema_version":"1.0","event_id":"sha256:ee8e395d1828d562f8c3c77cacf65baaa6d572d206bc188f5a950f3d41026c48"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:EAQMNZJYG4X3VVWI23BZQW2XVG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing Stylistic Appropriation using Large Language Models: An Evaluation Framework for Copyright Infringement under EU Law","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.CL","authors_text":"Chang Sun, Noah Scharrenberg","submitted_at":"2026-06-30T07:25:32Z","abstract_excerpt":"Large language models (LLM) trained on web-scale corpora generate output that may infringe copyright, yet existing technical safeguards focus narrowly on verbatim memorisation. EU copyright doctrine applies a broader standards: substantial similarity, which extends to stylistic choices, narrative structure, and creative elaboration. This mismatch between what current methods detect and what the law protects leaves a significant compliance gap. We introduce PSALM, an LLM-as-a-judge framework that operationalises EU copyright doctrine through ten evaluators assessing computational overlap, styli"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.31250","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/2606.31250/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":"2026-07-01T01:17:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fqv/vhKMM3SPh8/XMrQTzu2BHwL4s5V4sAKVSNOE9nTgLDc+T1HyPz5NahwfSl3XkXI5fHHX/RlXlyyoXV84BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T11:50:39.836105Z"},"content_sha256":"1d078a9082cddaf7127005b97eb30961a8b90bd60a1dc3534fe57a327fccaeaa","schema_version":"1.0","event_id":"sha256:1d078a9082cddaf7127005b97eb30961a8b90bd60a1dc3534fe57a327fccaeaa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EAQMNZJYG4X3VVWI23BZQW2XVG/bundle.json","state_url":"https://pith.science/pith/EAQMNZJYG4X3VVWI23BZQW2XVG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EAQMNZJYG4X3VVWI23BZQW2XVG/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":"2026-07-02T11:50:39Z","links":{"resolver":"https://pith.science/pith/EAQMNZJYG4X3VVWI23BZQW2XVG","bundle":"https://pith.science/pith/EAQMNZJYG4X3VVWI23BZQW2XVG/bundle.json","state":"https://pith.science/pith/EAQMNZJYG4X3VVWI23BZQW2XVG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EAQMNZJYG4X3VVWI23BZQW2XVG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:EAQMNZJYG4X3VVWI23BZQW2XVG","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":"2fe2e6554d498d7c334509c75b12bb1c210f035c36807cabcab2fb158bb7bd84","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2026-06-30T07:25:32Z","title_canon_sha256":"e4b947ff9f3305cb0a86499be1be840fd64596d472f1b77763186acf5560d05a"},"schema_version":"1.0","source":{"id":"2606.31250","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.31250","created_at":"2026-07-01T01:17:57Z"},{"alias_kind":"arxiv_version","alias_value":"2606.31250v1","created_at":"2026-07-01T01:17:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.31250","created_at":"2026-07-01T01:17:57Z"},{"alias_kind":"pith_short_12","alias_value":"EAQMNZJYG4X3","created_at":"2026-07-01T01:17:57Z"},{"alias_kind":"pith_short_16","alias_value":"EAQMNZJYG4X3VVWI","created_at":"2026-07-01T01:17:57Z"},{"alias_kind":"pith_short_8","alias_value":"EAQMNZJY","created_at":"2026-07-01T01:17:57Z"}],"graph_snapshots":[{"event_id":"sha256:1d078a9082cddaf7127005b97eb30961a8b90bd60a1dc3534fe57a327fccaeaa","target":"graph","created_at":"2026-07-01T01:17:57Z","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/2606.31250/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Large language models (LLM) trained on web-scale corpora generate output that may infringe copyright, yet existing technical safeguards focus narrowly on verbatim memorisation. EU copyright doctrine applies a broader standards: substantial similarity, which extends to stylistic choices, narrative structure, and creative elaboration. This mismatch between what current methods detect and what the law protects leaves a significant compliance gap. We introduce PSALM, an LLM-as-a-judge framework that operationalises EU copyright doctrine through ten evaluators assessing computational overlap, styli","authors_text":"Chang Sun, Noah Scharrenberg","cross_cats":["cs.AI"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2026-06-30T07:25:32Z","title":"Probing Stylistic Appropriation using Large Language Models: An Evaluation Framework for Copyright Infringement under EU Law"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.31250","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:ee8e395d1828d562f8c3c77cacf65baaa6d572d206bc188f5a950f3d41026c48","target":"record","created_at":"2026-07-01T01:17:57Z","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":"2fe2e6554d498d7c334509c75b12bb1c210f035c36807cabcab2fb158bb7bd84","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2026-06-30T07:25:32Z","title_canon_sha256":"e4b947ff9f3305cb0a86499be1be840fd64596d472f1b77763186acf5560d05a"},"schema_version":"1.0","source":{"id":"2606.31250","kind":"arxiv","version":1}},"canonical_sha256":"2020c6e538372fbad6c8d6c3985b57a9a4ef7f25c6412522744996aab4efbbbc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2020c6e538372fbad6c8d6c3985b57a9a4ef7f25c6412522744996aab4efbbbc","first_computed_at":"2026-07-01T01:17:57.150617Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-01T01:17:57.150617Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1ZYCT9dnmyNs6uXs+7sWM5WvzzCEiLyt5XhcRsoKe92cVg3HuLPXO8KRJRpfFa3Ki86gco7J/ZxhveS2lSOkBQ==","signature_status":"signed_v1","signed_at":"2026-07-01T01:17:57.151089Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.31250","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ee8e395d1828d562f8c3c77cacf65baaa6d572d206bc188f5a950f3d41026c48","sha256:1d078a9082cddaf7127005b97eb30961a8b90bd60a1dc3534fe57a327fccaeaa"],"state_sha256":"f37b66997dc856d0e8b8bd38e1c9244456c555c0337abf373c59c8ea8bdb41e9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xptdqtLxRuR1WBWhdy1WgjPF140YvetA2SVGd/aA0k4GRIGRQhvBXHm7swDjzADkjyZQz6GYd8FWvALLA1vDCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-02T11:50:39.838344Z","bundle_sha256":"adbf51ec45a9a50aa5a542bae2187a57917375f7384b2d2eda00399472fa8e09"}}