{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:ULJGBP7KEOE6GASXD5SCZMQ3CH","short_pith_number":"pith:ULJGBP7K","canonical_record":{"source":{"id":"1810.13289","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-10-31T13:54:32Z","cross_cats_sorted":[],"title_canon_sha256":"985b3fadc2bc05372905657cd82dfa7a0ca67eb67aff334e29e308f0e2cbdf21","abstract_canon_sha256":"36df986a036249df35c2b9d2f2581b7a270b3a614d19f0ceea59f213e9df267c"},"schema_version":"1.0"},"canonical_sha256":"a2d260bfea2389e302571f642cb21b11f21c479634888cb946f9586732e6b0cb","source":{"kind":"arxiv","id":"1810.13289","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.13289","created_at":"2026-05-17T23:57:07Z"},{"alias_kind":"arxiv_version","alias_value":"1810.13289v2","created_at":"2026-05-17T23:57:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.13289","created_at":"2026-05-17T23:57:07Z"},{"alias_kind":"pith_short_12","alias_value":"ULJGBP7KEOE6","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"ULJGBP7KEOE6GASX","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"ULJGBP7K","created_at":"2026-05-18T12:32:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:ULJGBP7KEOE6GASXD5SCZMQ3CH","target":"record","payload":{"canonical_record":{"source":{"id":"1810.13289","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-10-31T13:54:32Z","cross_cats_sorted":[],"title_canon_sha256":"985b3fadc2bc05372905657cd82dfa7a0ca67eb67aff334e29e308f0e2cbdf21","abstract_canon_sha256":"36df986a036249df35c2b9d2f2581b7a270b3a614d19f0ceea59f213e9df267c"},"schema_version":"1.0"},"canonical_sha256":"a2d260bfea2389e302571f642cb21b11f21c479634888cb946f9586732e6b0cb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:57:07.271975Z","signature_b64":"D6HiBOwXCIfC81wv/YREVVXjawes6ls+cqwA+68ivGJZG5axVkb5UIDRnQglp0ucEaffDwdXHBqAtMu5Z4eCCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a2d260bfea2389e302571f642cb21b11f21c479634888cb946f9586732e6b0cb","last_reissued_at":"2026-05-17T23:57:07.271622Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:57:07.271622Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.13289","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":"2026-05-17T23:57:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k3GtEXR0AJRxt0r2Rjz5WHL0VddQUNeudz3j4DZ/oa53e1c+Xi5NfNyZad56rVr4cMZ/WV+9pTiwohcHoT/tDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T11:42:34.929885Z"},"content_sha256":"4319ec2e7702b3d2d6a0b256f94754fd67274f833bd1d6f7684cd909bc0783ac","schema_version":"1.0","event_id":"sha256:4319ec2e7702b3d2d6a0b256f94754fd67274f833bd1d6f7684cd909bc0783ac"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:ULJGBP7KEOE6GASXD5SCZMQ3CH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Two-photon vibrational transitions in ${\\rm O}_2^+$ as probes of variation of the proton-to-electron mass ratio","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"Alexander Frenett, David Hanneke, Ryan Carollo","submitted_at":"2018-10-31T13:54:32Z","abstract_excerpt":"Vibrational overtones in deeply bound molecules are sensitive probes for variation of the proton-to-electron mass ratio $\\mu$. In nonpolar molecules, these overtones may be driven as two-photon transitions. Here, we present procedures for experiments with ${\\rm O}_2^+$, including state-preparation through photoionization, a two-photon probe, and detection. We calculate transition dipole moments between all $X\\,^2\\Pi_g$ vibrational levels and those of the $A\\,^2\\Pi_u$ excited electronic state. Using these dipole moments, we calculate two-photon transition rates and AC-Stark-shift systematics fo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.13289","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":"2026-05-17T23:57:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CbGsSd/esH17wZb3VfNwlgMRn4ZXyjSippz+VKSPM6sY9vdJ1VXwzqpnYP+roDwvieDcI5cLHq6pBDRPntURBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T11:42:34.930221Z"},"content_sha256":"d2345ad27510b3fe9a9069f26580ba0ae78a0c4a335dcb75c4abd4f68a09a6c1","schema_version":"1.0","event_id":"sha256:d2345ad27510b3fe9a9069f26580ba0ae78a0c4a335dcb75c4abd4f68a09a6c1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ULJGBP7KEOE6GASXD5SCZMQ3CH/bundle.json","state_url":"https://pith.science/pith/ULJGBP7KEOE6GASXD5SCZMQ3CH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ULJGBP7KEOE6GASXD5SCZMQ3CH/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":"2026-06-01T11:42:34Z","links":{"resolver":"https://pith.science/pith/ULJGBP7KEOE6GASXD5SCZMQ3CH","bundle":"https://pith.science/pith/ULJGBP7KEOE6GASXD5SCZMQ3CH/bundle.json","state":"https://pith.science/pith/ULJGBP7KEOE6GASXD5SCZMQ3CH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ULJGBP7KEOE6GASXD5SCZMQ3CH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:ULJGBP7KEOE6GASXD5SCZMQ3CH","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":"36df986a036249df35c2b9d2f2581b7a270b3a614d19f0ceea59f213e9df267c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-10-31T13:54:32Z","title_canon_sha256":"985b3fadc2bc05372905657cd82dfa7a0ca67eb67aff334e29e308f0e2cbdf21"},"schema_version":"1.0","source":{"id":"1810.13289","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.13289","created_at":"2026-05-17T23:57:07Z"},{"alias_kind":"arxiv_version","alias_value":"1810.13289v2","created_at":"2026-05-17T23:57:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.13289","created_at":"2026-05-17T23:57:07Z"},{"alias_kind":"pith_short_12","alias_value":"ULJGBP7KEOE6","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"ULJGBP7KEOE6GASX","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"ULJGBP7K","created_at":"2026-05-18T12:32:56Z"}],"graph_snapshots":[{"event_id":"sha256:d2345ad27510b3fe9a9069f26580ba0ae78a0c4a335dcb75c4abd4f68a09a6c1","target":"graph","created_at":"2026-05-17T23:57:07Z","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":"Vibrational overtones in deeply bound molecules are sensitive probes for variation of the proton-to-electron mass ratio $\\mu$. In nonpolar molecules, these overtones may be driven as two-photon transitions. Here, we present procedures for experiments with ${\\rm O}_2^+$, including state-preparation through photoionization, a two-photon probe, and detection. We calculate transition dipole moments between all $X\\,^2\\Pi_g$ vibrational levels and those of the $A\\,^2\\Pi_u$ excited electronic state. Using these dipole moments, we calculate two-photon transition rates and AC-Stark-shift systematics fo","authors_text":"Alexander Frenett, David Hanneke, Ryan Carollo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-10-31T13:54:32Z","title":"Two-photon vibrational transitions in ${\\rm O}_2^+$ as probes of variation of the proton-to-electron mass ratio"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.13289","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":"sha256:4319ec2e7702b3d2d6a0b256f94754fd67274f833bd1d6f7684cd909bc0783ac","target":"record","created_at":"2026-05-17T23:57:07Z","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":"36df986a036249df35c2b9d2f2581b7a270b3a614d19f0ceea59f213e9df267c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-10-31T13:54:32Z","title_canon_sha256":"985b3fadc2bc05372905657cd82dfa7a0ca67eb67aff334e29e308f0e2cbdf21"},"schema_version":"1.0","source":{"id":"1810.13289","kind":"arxiv","version":2}},"canonical_sha256":"a2d260bfea2389e302571f642cb21b11f21c479634888cb946f9586732e6b0cb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a2d260bfea2389e302571f642cb21b11f21c479634888cb946f9586732e6b0cb","first_computed_at":"2026-05-17T23:57:07.271622Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:57:07.271622Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"D6HiBOwXCIfC81wv/YREVVXjawes6ls+cqwA+68ivGJZG5axVkb5UIDRnQglp0ucEaffDwdXHBqAtMu5Z4eCCw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:57:07.271975Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.13289","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4319ec2e7702b3d2d6a0b256f94754fd67274f833bd1d6f7684cd909bc0783ac","sha256:d2345ad27510b3fe9a9069f26580ba0ae78a0c4a335dcb75c4abd4f68a09a6c1"],"state_sha256":"4ff56cea957253d5d0a1379f4613b7ab262d0aa1c8ce8c8b9acf815dd8c67422"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x7nNOIzX7ifqH/dx9qC2wV632l1Ihh0SaT1sKrnFOvu4BWhysK0fry/K3Lf3we4gPlmNbQnxJTNUJFra+VUUDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T11:42:34.932176Z","bundle_sha256":"79ad3ae6afb70448a5e9721b0f78c1ebbbe711c40c6c08c046fb816a8631fd42"}}