{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:TYVITN2XT3UW7QN3QV7JS37EZ7","short_pith_number":"pith:TYVITN2X","canonical_record":{"source":{"id":"1006.2157","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2010-06-10T21:23:10Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"bcad34d5e994fe739c9cf255cec8b97d64e587b5730eca865489be172bfb9cf0","abstract_canon_sha256":"1a1dcff7529a259f4fbc7a9b1c894e382cba8a2270d7ae6c8abc222874926748"},"schema_version":"1.0"},"canonical_sha256":"9e2a89b7579ee96fc1bb857e996fe4cffa1f3e065537b191a952967fc05cdb3b","source":{"kind":"arxiv","id":"1006.2157","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.2157","created_at":"2026-05-18T02:06:54Z"},{"alias_kind":"arxiv_version","alias_value":"1006.2157v2","created_at":"2026-05-18T02:06:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.2157","created_at":"2026-05-18T02:06:54Z"},{"alias_kind":"pith_short_12","alias_value":"TYVITN2XT3UW","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"TYVITN2XT3UW7QN3","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"TYVITN2X","created_at":"2026-05-18T12:26:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:TYVITN2XT3UW7QN3QV7JS37EZ7","target":"record","payload":{"canonical_record":{"source":{"id":"1006.2157","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2010-06-10T21:23:10Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"bcad34d5e994fe739c9cf255cec8b97d64e587b5730eca865489be172bfb9cf0","abstract_canon_sha256":"1a1dcff7529a259f4fbc7a9b1c894e382cba8a2270d7ae6c8abc222874926748"},"schema_version":"1.0"},"canonical_sha256":"9e2a89b7579ee96fc1bb857e996fe4cffa1f3e065537b191a952967fc05cdb3b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:06:54.880183Z","signature_b64":"wr/UNenO5kd1PPpcHjsaI+aNLOkofa97ny+JU0SfIAFnMDFErMge+Odqzh+rIOoTqPBhnVOHJdOMrK/yMgXwCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9e2a89b7579ee96fc1bb857e996fe4cffa1f3e065537b191a952967fc05cdb3b","last_reissued_at":"2026-05-18T02:06:54.879560Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:06:54.879560Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1006.2157","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":"2026-05-18T02:06:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VlTujZKmv65ien4Qx6dcz1LNlSXY12u5DPsGTfcTOQ4iN1tXnE2ygR1CMrnxO6z3z2uW+NsAr/kbWKMwGuB2DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T15:50:48.673146Z"},"content_sha256":"a2cafae5885d2ae2e8db022c776cbba8c76ead1769aa52174e3a5f04babf9631","schema_version":"1.0","event_id":"sha256:a2cafae5885d2ae2e8db022c776cbba8c76ead1769aa52174e3a5f04babf9631"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:TYVITN2XT3UW7QN3QV7JS37EZ7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Collision of Polymers in a Vacuum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech"],"primary_cat":"cond-mat.soft","authors_text":"J.M. Deutsch","submitted_at":"2010-06-10T21:23:10Z","abstract_excerpt":"In a number of experimental situations, single polymer molecules can be suspended in a vacuum. Here collisions between such molecules are considered. The limit of high collision velocity is investigated numerically for a variety of conditions. The distribution of contact times, scattering angles, and final velocities are analyzed. In this limit, self avoiding chains are found to become highly stretched as they collide with each other, and have a distribution of scattering times that depends on the scattering angle. The velocity of the molecules after the collisions is similar to predictions of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.2157","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":"2026-05-18T02:06:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8pUupvws4yy0qMYWfkiRfmcFTfY1B0rLQMJVjnhO3lclSdUF1fQhLOTnDYFZCPglsAoR9GwG4JOdC/CSPtPQBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T15:50:48.673504Z"},"content_sha256":"fc5742c071d017613bd7367e7cb4f1cbbd3037aeaaee035b11c17cdd973a23d1","schema_version":"1.0","event_id":"sha256:fc5742c071d017613bd7367e7cb4f1cbbd3037aeaaee035b11c17cdd973a23d1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TYVITN2XT3UW7QN3QV7JS37EZ7/bundle.json","state_url":"https://pith.science/pith/TYVITN2XT3UW7QN3QV7JS37EZ7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TYVITN2XT3UW7QN3QV7JS37EZ7/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":"2026-06-27T15:50:48Z","links":{"resolver":"https://pith.science/pith/TYVITN2XT3UW7QN3QV7JS37EZ7","bundle":"https://pith.science/pith/TYVITN2XT3UW7QN3QV7JS37EZ7/bundle.json","state":"https://pith.science/pith/TYVITN2XT3UW7QN3QV7JS37EZ7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TYVITN2XT3UW7QN3QV7JS37EZ7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:TYVITN2XT3UW7QN3QV7JS37EZ7","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":"1a1dcff7529a259f4fbc7a9b1c894e382cba8a2270d7ae6c8abc222874926748","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2010-06-10T21:23:10Z","title_canon_sha256":"bcad34d5e994fe739c9cf255cec8b97d64e587b5730eca865489be172bfb9cf0"},"schema_version":"1.0","source":{"id":"1006.2157","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.2157","created_at":"2026-05-18T02:06:54Z"},{"alias_kind":"arxiv_version","alias_value":"1006.2157v2","created_at":"2026-05-18T02:06:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.2157","created_at":"2026-05-18T02:06:54Z"},{"alias_kind":"pith_short_12","alias_value":"TYVITN2XT3UW","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"TYVITN2XT3UW7QN3","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"TYVITN2X","created_at":"2026-05-18T12:26:15Z"}],"graph_snapshots":[{"event_id":"sha256:fc5742c071d017613bd7367e7cb4f1cbbd3037aeaaee035b11c17cdd973a23d1","target":"graph","created_at":"2026-05-18T02:06:54Z","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":"In a number of experimental situations, single polymer molecules can be suspended in a vacuum. Here collisions between such molecules are considered. The limit of high collision velocity is investigated numerically for a variety of conditions. The distribution of contact times, scattering angles, and final velocities are analyzed. In this limit, self avoiding chains are found to become highly stretched as they collide with each other, and have a distribution of scattering times that depends on the scattering angle. The velocity of the molecules after the collisions is similar to predictions of","authors_text":"J.M. Deutsch","cross_cats":["cond-mat.stat-mech"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2010-06-10T21:23:10Z","title":"Collision of Polymers in a Vacuum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.2157","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:a2cafae5885d2ae2e8db022c776cbba8c76ead1769aa52174e3a5f04babf9631","target":"record","created_at":"2026-05-18T02:06:54Z","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":"1a1dcff7529a259f4fbc7a9b1c894e382cba8a2270d7ae6c8abc222874926748","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2010-06-10T21:23:10Z","title_canon_sha256":"bcad34d5e994fe739c9cf255cec8b97d64e587b5730eca865489be172bfb9cf0"},"schema_version":"1.0","source":{"id":"1006.2157","kind":"arxiv","version":2}},"canonical_sha256":"9e2a89b7579ee96fc1bb857e996fe4cffa1f3e065537b191a952967fc05cdb3b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9e2a89b7579ee96fc1bb857e996fe4cffa1f3e065537b191a952967fc05cdb3b","first_computed_at":"2026-05-18T02:06:54.879560Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:06:54.879560Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wr/UNenO5kd1PPpcHjsaI+aNLOkofa97ny+JU0SfIAFnMDFErMge+Odqzh+rIOoTqPBhnVOHJdOMrK/yMgXwCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:06:54.880183Z","signed_message":"canonical_sha256_bytes"},"source_id":"1006.2157","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a2cafae5885d2ae2e8db022c776cbba8c76ead1769aa52174e3a5f04babf9631","sha256:fc5742c071d017613bd7367e7cb4f1cbbd3037aeaaee035b11c17cdd973a23d1"],"state_sha256":"1c247d530f7a554c94dd046908e59cf13f96ca17dd539877059d25124411b877"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kBpSAe99j4ZFSb67cranq8gDL1Q9ObtYbn3YS3Ml757ACtVhwoQfGYVweamTem/GuVj5BtO5efN74r3z5wdMCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T15:50:48.675457Z","bundle_sha256":"3b771ab51a580fa350a74e977d20c38da5eeff3fb2edd493d0c3d5a8a9d3d52b"}}