{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:XYNTLC37QLL6K3VDXUQRJCYRGB","short_pith_number":"pith:XYNTLC37","canonical_record":{"source":{"id":"1410.5310","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-10-20T15:15:32Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"0f1ec6022aa01f83e727175ff3413e10b5f2811ff6b0ccb753be46d72837ccfc","abstract_canon_sha256":"903dd6ad2004d506eae97a78f1d22d4ceefab5c6878f7cf961a2cafc966c6391"},"schema_version":"1.0"},"canonical_sha256":"be1b358b7f82d7e56ea3bd21148b11307f68bb7afa258253963dc687af3529f8","source":{"kind":"arxiv","id":"1410.5310","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.5310","created_at":"2026-05-18T01:41:43Z"},{"alias_kind":"arxiv_version","alias_value":"1410.5310v1","created_at":"2026-05-18T01:41:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.5310","created_at":"2026-05-18T01:41:43Z"},{"alias_kind":"pith_short_12","alias_value":"XYNTLC37QLL6","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"XYNTLC37QLL6K3VD","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"XYNTLC37","created_at":"2026-05-18T12:28:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:XYNTLC37QLL6K3VDXUQRJCYRGB","target":"record","payload":{"canonical_record":{"source":{"id":"1410.5310","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-10-20T15:15:32Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"0f1ec6022aa01f83e727175ff3413e10b5f2811ff6b0ccb753be46d72837ccfc","abstract_canon_sha256":"903dd6ad2004d506eae97a78f1d22d4ceefab5c6878f7cf961a2cafc966c6391"},"schema_version":"1.0"},"canonical_sha256":"be1b358b7f82d7e56ea3bd21148b11307f68bb7afa258253963dc687af3529f8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:43.513923Z","signature_b64":"njLYbKGuQrP0yGuSXeT+66enXCtZWfH+M2rGA05QkAsjMUPeF+XH4qI7LQA0dVinM1oy7+LX/zrRBCqWU5iVDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"be1b358b7f82d7e56ea3bd21148b11307f68bb7afa258253963dc687af3529f8","last_reissued_at":"2026-05-18T01:41:43.513419Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:43.513419Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1410.5310","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":"2026-05-18T01:41:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ddR4zLJLRDynSOLKMaVdF5AukG3mK/hFhDHX2qU+UyzA7uB40zKeUtyCPGuu1MRG3HS6IlKzA6YVshL25Zp/BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T21:10:16.567229Z"},"content_sha256":"ef271e95b00c6267eac1cc693da20f4d9dec6c571fc06a813bdde72d719a9c1a","schema_version":"1.0","event_id":"sha256:ef271e95b00c6267eac1cc693da20f4d9dec6c571fc06a813bdde72d719a9c1a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:XYNTLC37QLL6K3VDXUQRJCYRGB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Low-temperature spectroscopy of the $^{12}$C$_2$H$_2$ ($\\upsilon_1 +\\upsilon_3$) band in a helium buffer gas","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"astro-ph.IM","authors_text":"G. Santambrogio, I. Ricciardi, L. Santamaria, M. De Rosa, P. De Natale, P. Maddaloni, S. Mosca, V. Di Sarno","submitted_at":"2014-10-20T15:15:32Z","abstract_excerpt":"Buffer gas cooling with a $^4$He gas is used to perform laser-absorption spectroscopy of the $^{12}$C$_2$H$_2$ ($\\nu_1+\\nu_3$) band at cryogenic temperatures. Doppler thermometry is first carried out to extract translational temperatures from the recorded spectra. Then, rotational temperatures down to 20 K are retrieved by fitting the Boltzmann distribution to the relative intensities of several ro-vibrational lines. The underlying helium-acetylene collisional physics, relevant for modeling planetary atmospheres, is also addressed. In particular, the diffusion time of $^{12}$C$_2$H$_2$ in the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.5310","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":"2026-05-18T01:41:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"htx5Ib5TP+7uWmZgTqZTrZMuCEBRM6igakKiMctB1+nZ0kiJutfes174hRC7CeTiAyx1+1ltq3ZYlYXwTWAtCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T21:10:16.567784Z"},"content_sha256":"ea8666a3099e620ca8fd296d789ea2c4638bab561f49005d782aff763c5994de","schema_version":"1.0","event_id":"sha256:ea8666a3099e620ca8fd296d789ea2c4638bab561f49005d782aff763c5994de"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XYNTLC37QLL6K3VDXUQRJCYRGB/bundle.json","state_url":"https://pith.science/pith/XYNTLC37QLL6K3VDXUQRJCYRGB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XYNTLC37QLL6K3VDXUQRJCYRGB/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":"2026-06-01T21:10:16Z","links":{"resolver":"https://pith.science/pith/XYNTLC37QLL6K3VDXUQRJCYRGB","bundle":"https://pith.science/pith/XYNTLC37QLL6K3VDXUQRJCYRGB/bundle.json","state":"https://pith.science/pith/XYNTLC37QLL6K3VDXUQRJCYRGB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XYNTLC37QLL6K3VDXUQRJCYRGB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:XYNTLC37QLL6K3VDXUQRJCYRGB","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":"903dd6ad2004d506eae97a78f1d22d4ceefab5c6878f7cf961a2cafc966c6391","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-10-20T15:15:32Z","title_canon_sha256":"0f1ec6022aa01f83e727175ff3413e10b5f2811ff6b0ccb753be46d72837ccfc"},"schema_version":"1.0","source":{"id":"1410.5310","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.5310","created_at":"2026-05-18T01:41:43Z"},{"alias_kind":"arxiv_version","alias_value":"1410.5310v1","created_at":"2026-05-18T01:41:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.5310","created_at":"2026-05-18T01:41:43Z"},{"alias_kind":"pith_short_12","alias_value":"XYNTLC37QLL6","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"XYNTLC37QLL6K3VD","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"XYNTLC37","created_at":"2026-05-18T12:28:57Z"}],"graph_snapshots":[{"event_id":"sha256:ea8666a3099e620ca8fd296d789ea2c4638bab561f49005d782aff763c5994de","target":"graph","created_at":"2026-05-18T01:41:43Z","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":"Buffer gas cooling with a $^4$He gas is used to perform laser-absorption spectroscopy of the $^{12}$C$_2$H$_2$ ($\\nu_1+\\nu_3$) band at cryogenic temperatures. Doppler thermometry is first carried out to extract translational temperatures from the recorded spectra. Then, rotational temperatures down to 20 K are retrieved by fitting the Boltzmann distribution to the relative intensities of several ro-vibrational lines. The underlying helium-acetylene collisional physics, relevant for modeling planetary atmospheres, is also addressed. In particular, the diffusion time of $^{12}$C$_2$H$_2$ in the ","authors_text":"G. Santambrogio, I. Ricciardi, L. Santamaria, M. De Rosa, P. De Natale, P. Maddaloni, S. Mosca, V. Di Sarno","cross_cats":["physics.atom-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-10-20T15:15:32Z","title":"Low-temperature spectroscopy of the $^{12}$C$_2$H$_2$ ($\\upsilon_1 +\\upsilon_3$) band in a helium buffer gas"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.5310","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:ef271e95b00c6267eac1cc693da20f4d9dec6c571fc06a813bdde72d719a9c1a","target":"record","created_at":"2026-05-18T01:41:43Z","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":"903dd6ad2004d506eae97a78f1d22d4ceefab5c6878f7cf961a2cafc966c6391","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-10-20T15:15:32Z","title_canon_sha256":"0f1ec6022aa01f83e727175ff3413e10b5f2811ff6b0ccb753be46d72837ccfc"},"schema_version":"1.0","source":{"id":"1410.5310","kind":"arxiv","version":1}},"canonical_sha256":"be1b358b7f82d7e56ea3bd21148b11307f68bb7afa258253963dc687af3529f8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be1b358b7f82d7e56ea3bd21148b11307f68bb7afa258253963dc687af3529f8","first_computed_at":"2026-05-18T01:41:43.513419Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:43.513419Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"njLYbKGuQrP0yGuSXeT+66enXCtZWfH+M2rGA05QkAsjMUPeF+XH4qI7LQA0dVinM1oy7+LX/zrRBCqWU5iVDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:43.513923Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.5310","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ef271e95b00c6267eac1cc693da20f4d9dec6c571fc06a813bdde72d719a9c1a","sha256:ea8666a3099e620ca8fd296d789ea2c4638bab561f49005d782aff763c5994de"],"state_sha256":"c03aa25c17abc2449dd6a0c56111a90420d8b3b145ddf6c8eab42f99f936e69b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vK/RWgWxE15LScSp3PI4pdDfDW4TTDhvWkcvEmn2T6S/264faoSoU5Oqthu7ZytjbiW+eFyZyYOZaaD7m17iCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T21:10:16.570557Z","bundle_sha256":"7eb8426ca73711f3dd36f45db475c9df9aab1717a02172951a168ec92422b46f"}}