{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:5CE3BNC7TCATXYVH6VK64CZPYT","short_pith_number":"pith:5CE3BNC7","canonical_record":{"source":{"id":"1311.4184","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2013-11-17T17:08:23Z","cross_cats_sorted":["cond-mat.soft"],"title_canon_sha256":"0fcd045d60daa231e753d2cbe9c923864bd9eb67fe3014ef5b0a312bff89661a","abstract_canon_sha256":"b53172baa551342fff76581b50b7642bd233fdd5a60d9080da70a84e0ca9f538"},"schema_version":"1.0"},"canonical_sha256":"e889b0b45f98813be2a7f555ee0b2fc4dbf03e511b5988196b61e531d6ef3361","source":{"kind":"arxiv","id":"1311.4184","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.4184","created_at":"2026-05-18T02:59:34Z"},{"alias_kind":"arxiv_version","alias_value":"1311.4184v2","created_at":"2026-05-18T02:59:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.4184","created_at":"2026-05-18T02:59:34Z"},{"alias_kind":"pith_short_12","alias_value":"5CE3BNC7TCAT","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"5CE3BNC7TCATXYVH","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"5CE3BNC7","created_at":"2026-05-18T12:27:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:5CE3BNC7TCATXYVH6VK64CZPYT","target":"record","payload":{"canonical_record":{"source":{"id":"1311.4184","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2013-11-17T17:08:23Z","cross_cats_sorted":["cond-mat.soft"],"title_canon_sha256":"0fcd045d60daa231e753d2cbe9c923864bd9eb67fe3014ef5b0a312bff89661a","abstract_canon_sha256":"b53172baa551342fff76581b50b7642bd233fdd5a60d9080da70a84e0ca9f538"},"schema_version":"1.0"},"canonical_sha256":"e889b0b45f98813be2a7f555ee0b2fc4dbf03e511b5988196b61e531d6ef3361","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:59:34.184127Z","signature_b64":"E14hpLrSOIH6DeE5C24M3qKRvGLE8qYAe0srb4IXgbmEb/gDnYIXlvVkmpI7N0S/yc18q6u8KMeWmc47Fa5IAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e889b0b45f98813be2a7f555ee0b2fc4dbf03e511b5988196b61e531d6ef3361","last_reissued_at":"2026-05-18T02:59:34.183414Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:59:34.183414Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1311.4184","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:59:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TTgfWv2/1ePlHfPGhhFI+FilLLQHXui2MBnagQQf6RRK7ovu217637UwHPd4cRbyyt0i9YbelqTbi9N2HzdcDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T02:47:17.749029Z"},"content_sha256":"a4996d101b0d73ba18ddf635fa74bc71ff60c27e8e9deefcf1666ac6b28fae02","schema_version":"1.0","event_id":"sha256:a4996d101b0d73ba18ddf635fa74bc71ff60c27e8e9deefcf1666ac6b28fae02"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:5CE3BNC7TCATXYVH6VK64CZPYT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ideal Polymers near Scale-Free Surfaces","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft"],"primary_cat":"cond-mat.stat-mech","authors_text":"Yacov Kantor, Yosi Hammer","submitted_at":"2013-11-17T17:08:23Z","abstract_excerpt":"The number of allowed configurations of a polymer is reduced by the presence of a repulsive surface resulting in an entropic force between them. We develop a method to calculate the entropic force, and detailed pressure distribution, for long ideal polymers near a scale-free repulsive surface. For infinite polymers the monomer density is related to the electrostatic potential near a conducting surface of a charge placed at the point where the polymer end is held. Pressure of the polymer on the surface is then related to the charge density distribution in the electrostatic problem. We derive ex"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.4184","kind":"arxiv","version":2},"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":"2026-05-18T02:59:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uM1UzL/TmGZuZ8zIPa7egk9LkzVBrTbd1WlY9aiB/VPpCMmGQycVYCjnhWetJFbNhdjjuAniyF50H5iQ4X5NAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T02:47:17.749400Z"},"content_sha256":"4c73906ebf58b4a529659a649e421806fdc746773f902b7a0858dc4c9a497d31","schema_version":"1.0","event_id":"sha256:4c73906ebf58b4a529659a649e421806fdc746773f902b7a0858dc4c9a497d31"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5CE3BNC7TCATXYVH6VK64CZPYT/bundle.json","state_url":"https://pith.science/pith/5CE3BNC7TCATXYVH6VK64CZPYT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5CE3BNC7TCATXYVH6VK64CZPYT/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":"2026-06-06T02:47:17Z","links":{"resolver":"https://pith.science/pith/5CE3BNC7TCATXYVH6VK64CZPYT","bundle":"https://pith.science/pith/5CE3BNC7TCATXYVH6VK64CZPYT/bundle.json","state":"https://pith.science/pith/5CE3BNC7TCATXYVH6VK64CZPYT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5CE3BNC7TCATXYVH6VK64CZPYT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:5CE3BNC7TCATXYVH6VK64CZPYT","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":"b53172baa551342fff76581b50b7642bd233fdd5a60d9080da70a84e0ca9f538","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2013-11-17T17:08:23Z","title_canon_sha256":"0fcd045d60daa231e753d2cbe9c923864bd9eb67fe3014ef5b0a312bff89661a"},"schema_version":"1.0","source":{"id":"1311.4184","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.4184","created_at":"2026-05-18T02:59:34Z"},{"alias_kind":"arxiv_version","alias_value":"1311.4184v2","created_at":"2026-05-18T02:59:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.4184","created_at":"2026-05-18T02:59:34Z"},{"alias_kind":"pith_short_12","alias_value":"5CE3BNC7TCAT","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"5CE3BNC7TCATXYVH","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"5CE3BNC7","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:4c73906ebf58b4a529659a649e421806fdc746773f902b7a0858dc4c9a497d31","target":"graph","created_at":"2026-05-18T02:59:34Z","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 number of allowed configurations of a polymer is reduced by the presence of a repulsive surface resulting in an entropic force between them. We develop a method to calculate the entropic force, and detailed pressure distribution, for long ideal polymers near a scale-free repulsive surface. For infinite polymers the monomer density is related to the electrostatic potential near a conducting surface of a charge placed at the point where the polymer end is held. Pressure of the polymer on the surface is then related to the charge density distribution in the electrostatic problem. We derive ex","authors_text":"Yacov Kantor, Yosi Hammer","cross_cats":["cond-mat.soft"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2013-11-17T17:08:23Z","title":"Ideal Polymers near Scale-Free Surfaces"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.4184","kind":"arxiv","version":2},"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:a4996d101b0d73ba18ddf635fa74bc71ff60c27e8e9deefcf1666ac6b28fae02","target":"record","created_at":"2026-05-18T02:59:34Z","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":"b53172baa551342fff76581b50b7642bd233fdd5a60d9080da70a84e0ca9f538","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2013-11-17T17:08:23Z","title_canon_sha256":"0fcd045d60daa231e753d2cbe9c923864bd9eb67fe3014ef5b0a312bff89661a"},"schema_version":"1.0","source":{"id":"1311.4184","kind":"arxiv","version":2}},"canonical_sha256":"e889b0b45f98813be2a7f555ee0b2fc4dbf03e511b5988196b61e531d6ef3361","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e889b0b45f98813be2a7f555ee0b2fc4dbf03e511b5988196b61e531d6ef3361","first_computed_at":"2026-05-18T02:59:34.183414Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:59:34.183414Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"E14hpLrSOIH6DeE5C24M3qKRvGLE8qYAe0srb4IXgbmEb/gDnYIXlvVkmpI7N0S/yc18q6u8KMeWmc47Fa5IAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:59:34.184127Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.4184","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a4996d101b0d73ba18ddf635fa74bc71ff60c27e8e9deefcf1666ac6b28fae02","sha256:4c73906ebf58b4a529659a649e421806fdc746773f902b7a0858dc4c9a497d31"],"state_sha256":"a8ca54689c7abed07a003e9ddc5daefba9d71c251c011428d6214dcceace8745"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qawTAa1ZybPs0q4D+8WEGy1WBKZ1Li/MScf3eFOFYPS+D3KpuduLmWhspaoTDIMQXWhgsvHeK6DxbZsMCEJ8AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T02:47:17.751381Z","bundle_sha256":"2112e4e9558836e8263b4b846faa8dd1cedd7a9f947668fc3423f5936baa5a9f"}}