{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:SVEFJ2SLOS5EPBKWQFGAEYR3IY","short_pith_number":"pith:SVEFJ2SL","canonical_record":{"source":{"id":"1803.08746","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-03-23T11:28:27Z","cross_cats_sorted":[],"title_canon_sha256":"7ed2cf394ca77909020245b193c080204d1fd2ff3659c2e3f6914354fa189a34","abstract_canon_sha256":"a7b969da540b63636ee78e3e50906c408bcc06ed6be3e74d6361874b7eaf0fc1"},"schema_version":"1.0"},"canonical_sha256":"954854ea4b74ba478556814c02623b461910d66c962bc4cb29fd3e95eab5c763","source":{"kind":"arxiv","id":"1803.08746","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.08746","created_at":"2026-05-18T00:00:56Z"},{"alias_kind":"arxiv_version","alias_value":"1803.08746v1","created_at":"2026-05-18T00:00:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.08746","created_at":"2026-05-18T00:00:56Z"},{"alias_kind":"pith_short_12","alias_value":"SVEFJ2SLOS5E","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"SVEFJ2SLOS5EPBKW","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"SVEFJ2SL","created_at":"2026-05-18T12:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:SVEFJ2SLOS5EPBKWQFGAEYR3IY","target":"record","payload":{"canonical_record":{"source":{"id":"1803.08746","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-03-23T11:28:27Z","cross_cats_sorted":[],"title_canon_sha256":"7ed2cf394ca77909020245b193c080204d1fd2ff3659c2e3f6914354fa189a34","abstract_canon_sha256":"a7b969da540b63636ee78e3e50906c408bcc06ed6be3e74d6361874b7eaf0fc1"},"schema_version":"1.0"},"canonical_sha256":"954854ea4b74ba478556814c02623b461910d66c962bc4cb29fd3e95eab5c763","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:00:56.810565Z","signature_b64":"aednfkIqxdF4Jf6Mnr5xPELk+JVFHNsJe3mgsb5WdoOh1wzBZR/Z/mNBVObPgHgZ4hrEWXs4jmM8xo1faCqdCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"954854ea4b74ba478556814c02623b461910d66c962bc4cb29fd3e95eab5c763","last_reissued_at":"2026-05-18T00:00:56.810001Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:00:56.810001Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.08746","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":"2026-05-18T00:00:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qypPzUZMbXjG5SxLvDun6pjGvKfxa6IHgPXnm0Z8UaVujHsqmaN/nNzsI14w8HGcuvSVg9UWH2LZyPSRroISBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T19:02:29.509913Z"},"content_sha256":"9924352944671c8a5949fe82d7260d952f5cd1cc2e63cfc6c5aa84a72ec9d81a","schema_version":"1.0","event_id":"sha256:9924352944671c8a5949fe82d7260d952f5cd1cc2e63cfc6c5aa84a72ec9d81a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:SVEFJ2SLOS5EPBKWQFGAEYR3IY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Study of EIT resonances in an anti-relaxation coated Rb vapor cell","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"Armen Sargsyan, David Sarkisyan, Mangesh Bhattarai, Vasant Natarajan, Vineet Bharti","submitted_at":"2018-03-23T11:28:27Z","abstract_excerpt":"We demonstrate---experimentally and theoretically---that resonances obtained in electromagnetically induced transparency (EIT) can be both bright and dark. The experiments are done using magnetic sublevels of a hyperfine transition in the D$_1$ line of $^{87}$Rb. The degeneracy of the sublevels is removed by having a magnetic field of value 27 G. The atoms are contained in a room-temperature vapor cell with anti-relaxation coating on the walls. Theoretical analysis based on a two-region model reproduces the experimental spectrum quite well. This ability to have both bright and dark resonances "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.08746","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":"2026-05-18T00:00:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qQ3yLIS745otVQDh++4ZUcn/KvIgBHe+RYWd1rDqrFV4aHFF1QLQNB4qbAI9YPZsGduHnGzBZzXAqtY5QYoFCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T19:02:29.510644Z"},"content_sha256":"3bd67f1f9d6ba624fd5cfe708840c9614b7546b2cc22c13552841df9efaf7806","schema_version":"1.0","event_id":"sha256:3bd67f1f9d6ba624fd5cfe708840c9614b7546b2cc22c13552841df9efaf7806"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SVEFJ2SLOS5EPBKWQFGAEYR3IY/bundle.json","state_url":"https://pith.science/pith/SVEFJ2SLOS5EPBKWQFGAEYR3IY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SVEFJ2SLOS5EPBKWQFGAEYR3IY/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":"2026-06-02T19:02:29Z","links":{"resolver":"https://pith.science/pith/SVEFJ2SLOS5EPBKWQFGAEYR3IY","bundle":"https://pith.science/pith/SVEFJ2SLOS5EPBKWQFGAEYR3IY/bundle.json","state":"https://pith.science/pith/SVEFJ2SLOS5EPBKWQFGAEYR3IY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SVEFJ2SLOS5EPBKWQFGAEYR3IY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:SVEFJ2SLOS5EPBKWQFGAEYR3IY","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":"a7b969da540b63636ee78e3e50906c408bcc06ed6be3e74d6361874b7eaf0fc1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-03-23T11:28:27Z","title_canon_sha256":"7ed2cf394ca77909020245b193c080204d1fd2ff3659c2e3f6914354fa189a34"},"schema_version":"1.0","source":{"id":"1803.08746","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.08746","created_at":"2026-05-18T00:00:56Z"},{"alias_kind":"arxiv_version","alias_value":"1803.08746v1","created_at":"2026-05-18T00:00:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.08746","created_at":"2026-05-18T00:00:56Z"},{"alias_kind":"pith_short_12","alias_value":"SVEFJ2SLOS5E","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"SVEFJ2SLOS5EPBKW","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"SVEFJ2SL","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:3bd67f1f9d6ba624fd5cfe708840c9614b7546b2cc22c13552841df9efaf7806","target":"graph","created_at":"2026-05-18T00:00:56Z","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 demonstrate---experimentally and theoretically---that resonances obtained in electromagnetically induced transparency (EIT) can be both bright and dark. The experiments are done using magnetic sublevels of a hyperfine transition in the D$_1$ line of $^{87}$Rb. The degeneracy of the sublevels is removed by having a magnetic field of value 27 G. The atoms are contained in a room-temperature vapor cell with anti-relaxation coating on the walls. Theoretical analysis based on a two-region model reproduces the experimental spectrum quite well. This ability to have both bright and dark resonances ","authors_text":"Armen Sargsyan, David Sarkisyan, Mangesh Bhattarai, Vasant Natarajan, Vineet Bharti","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-03-23T11:28:27Z","title":"Study of EIT resonances in an anti-relaxation coated Rb vapor cell"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.08746","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":"sha256:9924352944671c8a5949fe82d7260d952f5cd1cc2e63cfc6c5aa84a72ec9d81a","target":"record","created_at":"2026-05-18T00:00:56Z","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":"a7b969da540b63636ee78e3e50906c408bcc06ed6be3e74d6361874b7eaf0fc1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-03-23T11:28:27Z","title_canon_sha256":"7ed2cf394ca77909020245b193c080204d1fd2ff3659c2e3f6914354fa189a34"},"schema_version":"1.0","source":{"id":"1803.08746","kind":"arxiv","version":1}},"canonical_sha256":"954854ea4b74ba478556814c02623b461910d66c962bc4cb29fd3e95eab5c763","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"954854ea4b74ba478556814c02623b461910d66c962bc4cb29fd3e95eab5c763","first_computed_at":"2026-05-18T00:00:56.810001Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:00:56.810001Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aednfkIqxdF4Jf6Mnr5xPELk+JVFHNsJe3mgsb5WdoOh1wzBZR/Z/mNBVObPgHgZ4hrEWXs4jmM8xo1faCqdCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:00:56.810565Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.08746","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9924352944671c8a5949fe82d7260d952f5cd1cc2e63cfc6c5aa84a72ec9d81a","sha256:3bd67f1f9d6ba624fd5cfe708840c9614b7546b2cc22c13552841df9efaf7806"],"state_sha256":"58d22e010ac535129f282e104f018876b593c2588b3f65c27fe896544d2ea72d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vPHPDASfRvawLNJYUbuLXz1S60rzY77rqcPOxTXJ5kjlzbib768Zn6oNHjWbhOQH/AHYBd2OtRAjJxoazP2hAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T19:02:29.514261Z","bundle_sha256":"393e6c5e0db4bc9fe4963365ad8f616b5dcb24cf84f1578405c1f565d5202d3f"}}