{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:LSCCYMVYS7E72VCIHX6MBF3AAM","short_pith_number":"pith:LSCCYMVY","canonical_record":{"source":{"id":"0908.4444","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2009-08-31T01:46:00Z","cross_cats_sorted":[],"title_canon_sha256":"e92fb4ec8eda324125d203070c9da906c77dac4987d7c24c353867420fd23003","abstract_canon_sha256":"aa00ad48fb51d12749c33406dfa6214a0f86c9390dfa8e299bf0cbf035be2814"},"schema_version":"1.0"},"canonical_sha256":"5c842c32b897c9fd54483dfcc097600301980411b5e6ab6ff8a5c49b5c5988c3","source":{"kind":"arxiv","id":"0908.4444","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0908.4444","created_at":"2026-05-18T02:12:12Z"},{"alias_kind":"arxiv_version","alias_value":"0908.4444v1","created_at":"2026-05-18T02:12:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.4444","created_at":"2026-05-18T02:12:12Z"},{"alias_kind":"pith_short_12","alias_value":"LSCCYMVYS7E7","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"LSCCYMVYS7E72VCI","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"LSCCYMVY","created_at":"2026-05-18T12:26:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:LSCCYMVYS7E72VCIHX6MBF3AAM","target":"record","payload":{"canonical_record":{"source":{"id":"0908.4444","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2009-08-31T01:46:00Z","cross_cats_sorted":[],"title_canon_sha256":"e92fb4ec8eda324125d203070c9da906c77dac4987d7c24c353867420fd23003","abstract_canon_sha256":"aa00ad48fb51d12749c33406dfa6214a0f86c9390dfa8e299bf0cbf035be2814"},"schema_version":"1.0"},"canonical_sha256":"5c842c32b897c9fd54483dfcc097600301980411b5e6ab6ff8a5c49b5c5988c3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:12:12.823612Z","signature_b64":"tVkstrK5Q6MpcyNQPV6HjB5qSWUskwuNKcJZ+laAIEspliLN0KBN4VVBtq6BVcEVcdkK9QK1D82SsCregHnLAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5c842c32b897c9fd54483dfcc097600301980411b5e6ab6ff8a5c49b5c5988c3","last_reissued_at":"2026-05-18T02:12:12.822815Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:12:12.822815Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0908.4444","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":"2026-05-18T02:12:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sddv18PdzrCwL2NxX79Ge9hs3YKww04TVEv/hERIElfTaCrK/XnRLhuxqZHY3VUSvWkAfJBEAacYZUrex6NwDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T02:27:15.757387Z"},"content_sha256":"e1734cf52be0ed73fb5209e4a000d46e2957ae1aeae1f6def34e019fcf137681","schema_version":"1.0","event_id":"sha256:e1734cf52be0ed73fb5209e4a000d46e2957ae1aeae1f6def34e019fcf137681"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:LSCCYMVYS7E72VCIHX6MBF3AAM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Upper Limit on the Magnetic Dipole Contribution to the 5p-8p Transition in Rb by Use of Ultracold Atom Spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"A. Derevianko, E. E. Eyler, M. Ascoli, P. L. Gould, R. Pires","submitted_at":"2009-08-31T01:46:00Z","abstract_excerpt":"We report on hyperfine-resolved spectroscopic measurements of the electric-dipole forbidden 5$p_{3/2} \\to 8p_{1/2}$ transition in a sample of ultracold $^{87}$Rb atoms. The hyperfine selection rules enable the weak magnetic-dipole (M1) contribution to the transition strength to be distinguished from the much stronger electric-quadrupole (E2) contribution. An upper limit on the M1 transition strength is determined that is about 50 times smaller than an earlier experimental determination. We also calculate the expected value of the M1 matrix element and find that it is less than the upper limit "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.4444","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":"2026-05-18T02:12:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5P5adaTUJTFKwfdUF9bnRUgaYdmPNMY1KTYEkSyyw+2NrH6RRvQh3N6e/CT2wNQnU1V4Tz3jrUeUJVWyKX4tCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T02:27:15.757792Z"},"content_sha256":"49dad91bbf09a869921197350f12ef48a99eee0d990226b43b3aca35a59a137d","schema_version":"1.0","event_id":"sha256:49dad91bbf09a869921197350f12ef48a99eee0d990226b43b3aca35a59a137d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LSCCYMVYS7E72VCIHX6MBF3AAM/bundle.json","state_url":"https://pith.science/pith/LSCCYMVYS7E72VCIHX6MBF3AAM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LSCCYMVYS7E72VCIHX6MBF3AAM/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":"2026-05-27T02:27:15Z","links":{"resolver":"https://pith.science/pith/LSCCYMVYS7E72VCIHX6MBF3AAM","bundle":"https://pith.science/pith/LSCCYMVYS7E72VCIHX6MBF3AAM/bundle.json","state":"https://pith.science/pith/LSCCYMVYS7E72VCIHX6MBF3AAM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LSCCYMVYS7E72VCIHX6MBF3AAM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:LSCCYMVYS7E72VCIHX6MBF3AAM","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":"aa00ad48fb51d12749c33406dfa6214a0f86c9390dfa8e299bf0cbf035be2814","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2009-08-31T01:46:00Z","title_canon_sha256":"e92fb4ec8eda324125d203070c9da906c77dac4987d7c24c353867420fd23003"},"schema_version":"1.0","source":{"id":"0908.4444","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0908.4444","created_at":"2026-05-18T02:12:12Z"},{"alias_kind":"arxiv_version","alias_value":"0908.4444v1","created_at":"2026-05-18T02:12:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.4444","created_at":"2026-05-18T02:12:12Z"},{"alias_kind":"pith_short_12","alias_value":"LSCCYMVYS7E7","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"LSCCYMVYS7E72VCI","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"LSCCYMVY","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:49dad91bbf09a869921197350f12ef48a99eee0d990226b43b3aca35a59a137d","target":"graph","created_at":"2026-05-18T02:12:12Z","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":"We report on hyperfine-resolved spectroscopic measurements of the electric-dipole forbidden 5$p_{3/2} \\to 8p_{1/2}$ transition in a sample of ultracold $^{87}$Rb atoms. The hyperfine selection rules enable the weak magnetic-dipole (M1) contribution to the transition strength to be distinguished from the much stronger electric-quadrupole (E2) contribution. An upper limit on the M1 transition strength is determined that is about 50 times smaller than an earlier experimental determination. We also calculate the expected value of the M1 matrix element and find that it is less than the upper limit ","authors_text":"A. Derevianko, E. E. Eyler, M. Ascoli, P. L. Gould, R. Pires","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2009-08-31T01:46:00Z","title":"Upper Limit on the Magnetic Dipole Contribution to the 5p-8p Transition in Rb by Use of Ultracold Atom Spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.4444","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:e1734cf52be0ed73fb5209e4a000d46e2957ae1aeae1f6def34e019fcf137681","target":"record","created_at":"2026-05-18T02:12:12Z","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":"aa00ad48fb51d12749c33406dfa6214a0f86c9390dfa8e299bf0cbf035be2814","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2009-08-31T01:46:00Z","title_canon_sha256":"e92fb4ec8eda324125d203070c9da906c77dac4987d7c24c353867420fd23003"},"schema_version":"1.0","source":{"id":"0908.4444","kind":"arxiv","version":1}},"canonical_sha256":"5c842c32b897c9fd54483dfcc097600301980411b5e6ab6ff8a5c49b5c5988c3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5c842c32b897c9fd54483dfcc097600301980411b5e6ab6ff8a5c49b5c5988c3","first_computed_at":"2026-05-18T02:12:12.822815Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:12:12.822815Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tVkstrK5Q6MpcyNQPV6HjB5qSWUskwuNKcJZ+laAIEspliLN0KBN4VVBtq6BVcEVcdkK9QK1D82SsCregHnLAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:12:12.823612Z","signed_message":"canonical_sha256_bytes"},"source_id":"0908.4444","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e1734cf52be0ed73fb5209e4a000d46e2957ae1aeae1f6def34e019fcf137681","sha256:49dad91bbf09a869921197350f12ef48a99eee0d990226b43b3aca35a59a137d"],"state_sha256":"f31bebe356c2992bcf4cf05dcfd5d97a8e54712d4c55f7d353c92ed32fa068c7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A7EToJrM0haq1QVxnmwApGNPr7lmNIStoUjiJEYQylzeVa5abj5mXxb6aPGx5CnyVRaHWJQndabZQFkBkSYkCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T02:27:15.760480Z","bundle_sha256":"b198d1f9570b794ca68f8a8190048dcb25b98016b7caffe064d1fdd1a5bf5165"}}