{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:5KNPVTBFWHJ2UP4B7X5XOQ6A7Q","short_pith_number":"pith:5KNPVTBF","canonical_record":{"source":{"id":"1806.07455","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-06-19T20:29:37Z","cross_cats_sorted":[],"title_canon_sha256":"0bc268258a3709528f69da59b55f46a5fe8d1b1d5c4cb58d9ad1c9eb3c04ca96","abstract_canon_sha256":"7e28ca2cdc97d640d4016d226a1a6ab349783f3de6e59b60be8572dc1287ef8a"},"schema_version":"1.0"},"canonical_sha256":"ea9afacc25b1d3aa3f81fdfb7743c0fc2fe8f113b27f4852d73c9db158c08803","source":{"kind":"arxiv","id":"1806.07455","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.07455","created_at":"2026-05-18T00:05:30Z"},{"alias_kind":"arxiv_version","alias_value":"1806.07455v1","created_at":"2026-05-18T00:05:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.07455","created_at":"2026-05-18T00:05:30Z"},{"alias_kind":"pith_short_12","alias_value":"5KNPVTBFWHJ2","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"5KNPVTBFWHJ2UP4B","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"5KNPVTBF","created_at":"2026-05-18T12:32:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:5KNPVTBFWHJ2UP4B7X5XOQ6A7Q","target":"record","payload":{"canonical_record":{"source":{"id":"1806.07455","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-06-19T20:29:37Z","cross_cats_sorted":[],"title_canon_sha256":"0bc268258a3709528f69da59b55f46a5fe8d1b1d5c4cb58d9ad1c9eb3c04ca96","abstract_canon_sha256":"7e28ca2cdc97d640d4016d226a1a6ab349783f3de6e59b60be8572dc1287ef8a"},"schema_version":"1.0"},"canonical_sha256":"ea9afacc25b1d3aa3f81fdfb7743c0fc2fe8f113b27f4852d73c9db158c08803","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:05:30.715222Z","signature_b64":"o2Rj5qM+TVU3eSMgTm20PALFRT/rleSJw/m+N1lI3mnWHYIAdKKN6VbpZzMeTtIVLUJGh/E3OW52s29a/itZDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ea9afacc25b1d3aa3f81fdfb7743c0fc2fe8f113b27f4852d73c9db158c08803","last_reissued_at":"2026-05-18T00:05:30.714769Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:05:30.714769Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.07455","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":"2026-05-18T00:05:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V9yw7W7iMzxp0KBLtUCQVJrT+AZNmYg3EWJTJHGkEU2/SWH3WHgjYgRFU3HPnyg55LxAflSHkqfBSH3Wy5gsDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T07:54:01.535183Z"},"content_sha256":"43b2eeba36d642828a51bd5e546b65cf75ccfee13878094afa3ba9d2dac09570","schema_version":"1.0","event_id":"sha256:43b2eeba36d642828a51bd5e546b65cf75ccfee13878094afa3ba9d2dac09570"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:5KNPVTBFWHJ2UP4B7X5XOQ6A7Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Unravelling the stereodynamics of cold HD-H2 collisions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"Hua Guo, James F. E. Croft, Meng Huang, Naduvalath Balakrishnan","submitted_at":"2018-06-19T20:29:37Z","abstract_excerpt":"Measuring inelastic rates with partial wave resolution requires temperatures close to a Kelvin or below, even for the lightest molecule. In a recent experiment Perreault et al. [1] studied collisional relaxation of excited HD molecules in the v = 1, j = 2 state by para- and ortho-H2 at a temperature of about 1 K, extracting the angular distribution of scattered HD in the v = 1,j = 0 state. By state-preparation of the HD molecules, control of the angular distribution of scattered HD was demonstrated. Here, we report a first-principles simulation of that experiment which enables us to attribute "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.07455","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":"2026-05-18T00:05:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uZzhkrgyncyIUhvLddADCnxd7/BTUHtQXcShsZN+IELWQz4sxnDY9d6Eai50jiRnzKrWS5NDu+cNECy31QiUCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T07:54:01.535572Z"},"content_sha256":"171c6d6898e12c0417b5d701b82fec12a24301e5fbfe3da5c5a3d7abde279840","schema_version":"1.0","event_id":"sha256:171c6d6898e12c0417b5d701b82fec12a24301e5fbfe3da5c5a3d7abde279840"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5KNPVTBFWHJ2UP4B7X5XOQ6A7Q/bundle.json","state_url":"https://pith.science/pith/5KNPVTBFWHJ2UP4B7X5XOQ6A7Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5KNPVTBFWHJ2UP4B7X5XOQ6A7Q/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":"2026-06-03T07:54:01Z","links":{"resolver":"https://pith.science/pith/5KNPVTBFWHJ2UP4B7X5XOQ6A7Q","bundle":"https://pith.science/pith/5KNPVTBFWHJ2UP4B7X5XOQ6A7Q/bundle.json","state":"https://pith.science/pith/5KNPVTBFWHJ2UP4B7X5XOQ6A7Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5KNPVTBFWHJ2UP4B7X5XOQ6A7Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:5KNPVTBFWHJ2UP4B7X5XOQ6A7Q","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":"7e28ca2cdc97d640d4016d226a1a6ab349783f3de6e59b60be8572dc1287ef8a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-06-19T20:29:37Z","title_canon_sha256":"0bc268258a3709528f69da59b55f46a5fe8d1b1d5c4cb58d9ad1c9eb3c04ca96"},"schema_version":"1.0","source":{"id":"1806.07455","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.07455","created_at":"2026-05-18T00:05:30Z"},{"alias_kind":"arxiv_version","alias_value":"1806.07455v1","created_at":"2026-05-18T00:05:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.07455","created_at":"2026-05-18T00:05:30Z"},{"alias_kind":"pith_short_12","alias_value":"5KNPVTBFWHJ2","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"5KNPVTBFWHJ2UP4B","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"5KNPVTBF","created_at":"2026-05-18T12:32:08Z"}],"graph_snapshots":[{"event_id":"sha256:171c6d6898e12c0417b5d701b82fec12a24301e5fbfe3da5c5a3d7abde279840","target":"graph","created_at":"2026-05-18T00:05:30Z","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":"Measuring inelastic rates with partial wave resolution requires temperatures close to a Kelvin or below, even for the lightest molecule. In a recent experiment Perreault et al. [1] studied collisional relaxation of excited HD molecules in the v = 1, j = 2 state by para- and ortho-H2 at a temperature of about 1 K, extracting the angular distribution of scattered HD in the v = 1,j = 0 state. By state-preparation of the HD molecules, control of the angular distribution of scattered HD was demonstrated. Here, we report a first-principles simulation of that experiment which enables us to attribute ","authors_text":"Hua Guo, James F. E. Croft, Meng Huang, Naduvalath Balakrishnan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-06-19T20:29:37Z","title":"Unravelling the stereodynamics of cold HD-H2 collisions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.07455","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":"sha256:43b2eeba36d642828a51bd5e546b65cf75ccfee13878094afa3ba9d2dac09570","target":"record","created_at":"2026-05-18T00:05:30Z","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":"7e28ca2cdc97d640d4016d226a1a6ab349783f3de6e59b60be8572dc1287ef8a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-06-19T20:29:37Z","title_canon_sha256":"0bc268258a3709528f69da59b55f46a5fe8d1b1d5c4cb58d9ad1c9eb3c04ca96"},"schema_version":"1.0","source":{"id":"1806.07455","kind":"arxiv","version":1}},"canonical_sha256":"ea9afacc25b1d3aa3f81fdfb7743c0fc2fe8f113b27f4852d73c9db158c08803","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea9afacc25b1d3aa3f81fdfb7743c0fc2fe8f113b27f4852d73c9db158c08803","first_computed_at":"2026-05-18T00:05:30.714769Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:05:30.714769Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"o2Rj5qM+TVU3eSMgTm20PALFRT/rleSJw/m+N1lI3mnWHYIAdKKN6VbpZzMeTtIVLUJGh/E3OW52s29a/itZDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:05:30.715222Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.07455","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:43b2eeba36d642828a51bd5e546b65cf75ccfee13878094afa3ba9d2dac09570","sha256:171c6d6898e12c0417b5d701b82fec12a24301e5fbfe3da5c5a3d7abde279840"],"state_sha256":"52058b7ff0d2d8c88598b03a9982cd90390f4770570b9656d372725ab35ab114"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eNzpr6sJ74zK4Qp3UyaUn2mX415wJiAdmGqHRb81tPouTuzixbNi/GVDRdj0YgoFFYU7xRYjHKm5Kbp4HHdHCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T07:54:01.539771Z","bundle_sha256":"33a18b577f66d3329743dfa9b45632b843dca4c4e325388ce392d6076df043ca"}}