{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:6ZIEDSGEVHS3OCOQOOBZCCLTNK","short_pith_number":"pith:6ZIEDSGE","canonical_record":{"source":{"id":"1403.4783","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-03-19T12:17:43Z","cross_cats_sorted":[],"title_canon_sha256":"48825a0e24cc212d9b993111108a1a3f83fd991930796849eb048589b34861b3","abstract_canon_sha256":"f29e1eb05f4318348db19c8a1aea7f54cf3f5928eb8cf7cad27ba7eef5eb3f91"},"schema_version":"1.0"},"canonical_sha256":"f65041c8c4a9e5b709d073839109736a9d650f95b92673bd521ead418227e91d","source":{"kind":"arxiv","id":"1403.4783","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.4783","created_at":"2026-05-18T02:27:44Z"},{"alias_kind":"arxiv_version","alias_value":"1403.4783v1","created_at":"2026-05-18T02:27:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.4783","created_at":"2026-05-18T02:27:44Z"},{"alias_kind":"pith_short_12","alias_value":"6ZIEDSGEVHS3","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"6ZIEDSGEVHS3OCOQ","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"6ZIEDSGE","created_at":"2026-05-18T12:28:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:6ZIEDSGEVHS3OCOQOOBZCCLTNK","target":"record","payload":{"canonical_record":{"source":{"id":"1403.4783","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-03-19T12:17:43Z","cross_cats_sorted":[],"title_canon_sha256":"48825a0e24cc212d9b993111108a1a3f83fd991930796849eb048589b34861b3","abstract_canon_sha256":"f29e1eb05f4318348db19c8a1aea7f54cf3f5928eb8cf7cad27ba7eef5eb3f91"},"schema_version":"1.0"},"canonical_sha256":"f65041c8c4a9e5b709d073839109736a9d650f95b92673bd521ead418227e91d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:27:44.689229Z","signature_b64":"AnmZ57zNjVFrExHSQooC4yAN7+vRJnDwikgYvrSQu/pQXKabFU7XokSshrixjBUcPQzWRu4FeG/Kdu1LGsHeDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f65041c8c4a9e5b709d073839109736a9d650f95b92673bd521ead418227e91d","last_reissued_at":"2026-05-18T02:27:44.688805Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:27:44.688805Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1403.4783","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":"2026-05-18T02:27:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nPJdKeGqULFoZHUXN1+53gMHZu+fSYJsJH02OrW+R4zlk5ZUOCwA+k067mtQmfVwdL4syjh7MdxectM6I2OlCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T09:08:34.849084Z"},"content_sha256":"9b1a423768973e3f92708e3cb2bf9ef5746642001d670346120c02e7ba75870a","schema_version":"1.0","event_id":"sha256:9b1a423768973e3f92708e3cb2bf9ef5746642001d670346120c02e7ba75870a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:6ZIEDSGEVHS3OCOQOOBZCCLTNK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A spectroscopy approach to measure the gravitational mass of antihydrogen","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"A. Lambrecht, A. Yu. Voronin, E.A. Kupriyanova, G. Dufour, O.D. Dalkarov, P. Debu, P.Froelich, S. Reynaud, V.V. Nesvizhevsky","submitted_at":"2014-03-19T12:17:43Z","abstract_excerpt":"We study a method to induce resonant transitions between antihydrogen ($\\bar{H}$) quantum states above a material surface in the gravitational field of the Earth. The method consists of applying a gradient of magnetic field, which is temporally oscillating with the frequency equal to a frequency of transition between gravitational states of antihydrogen. A corresponding resonant change in the spatial density of antihydrogen atoms could be measured as a function of the frequency of applied field. We estimate an accuracy of measuring antihydrogen gravitational states spacing and show how a value"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.4783","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":"2026-05-18T02:27:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RS+3BeYB+tPsDqi62VoKztqmp65apAaF9whrFfvI/dKMqaeCsHP3UimRXpNwuP1ydzcuzGv7Qcydok21PX5fAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T09:08:34.849769Z"},"content_sha256":"bcb1d40d9a7db3b5aa71c7fea214f8fbd77848017b74278e927abe762040fa2c","schema_version":"1.0","event_id":"sha256:bcb1d40d9a7db3b5aa71c7fea214f8fbd77848017b74278e927abe762040fa2c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6ZIEDSGEVHS3OCOQOOBZCCLTNK/bundle.json","state_url":"https://pith.science/pith/6ZIEDSGEVHS3OCOQOOBZCCLTNK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6ZIEDSGEVHS3OCOQOOBZCCLTNK/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":"2026-05-24T09:08:34Z","links":{"resolver":"https://pith.science/pith/6ZIEDSGEVHS3OCOQOOBZCCLTNK","bundle":"https://pith.science/pith/6ZIEDSGEVHS3OCOQOOBZCCLTNK/bundle.json","state":"https://pith.science/pith/6ZIEDSGEVHS3OCOQOOBZCCLTNK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6ZIEDSGEVHS3OCOQOOBZCCLTNK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:6ZIEDSGEVHS3OCOQOOBZCCLTNK","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":"f29e1eb05f4318348db19c8a1aea7f54cf3f5928eb8cf7cad27ba7eef5eb3f91","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-03-19T12:17:43Z","title_canon_sha256":"48825a0e24cc212d9b993111108a1a3f83fd991930796849eb048589b34861b3"},"schema_version":"1.0","source":{"id":"1403.4783","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.4783","created_at":"2026-05-18T02:27:44Z"},{"alias_kind":"arxiv_version","alias_value":"1403.4783v1","created_at":"2026-05-18T02:27:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.4783","created_at":"2026-05-18T02:27:44Z"},{"alias_kind":"pith_short_12","alias_value":"6ZIEDSGEVHS3","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"6ZIEDSGEVHS3OCOQ","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"6ZIEDSGE","created_at":"2026-05-18T12:28:16Z"}],"graph_snapshots":[{"event_id":"sha256:bcb1d40d9a7db3b5aa71c7fea214f8fbd77848017b74278e927abe762040fa2c","target":"graph","created_at":"2026-05-18T02:27:44Z","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 study a method to induce resonant transitions between antihydrogen ($\\bar{H}$) quantum states above a material surface in the gravitational field of the Earth. The method consists of applying a gradient of magnetic field, which is temporally oscillating with the frequency equal to a frequency of transition between gravitational states of antihydrogen. A corresponding resonant change in the spatial density of antihydrogen atoms could be measured as a function of the frequency of applied field. We estimate an accuracy of measuring antihydrogen gravitational states spacing and show how a value","authors_text":"A. Lambrecht, A. Yu. Voronin, E.A. Kupriyanova, G. Dufour, O.D. Dalkarov, P. Debu, P.Froelich, S. Reynaud, V.V. Nesvizhevsky","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-03-19T12:17:43Z","title":"A spectroscopy approach to measure the gravitational mass of antihydrogen"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.4783","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":"sha256:9b1a423768973e3f92708e3cb2bf9ef5746642001d670346120c02e7ba75870a","target":"record","created_at":"2026-05-18T02:27:44Z","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":"f29e1eb05f4318348db19c8a1aea7f54cf3f5928eb8cf7cad27ba7eef5eb3f91","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-03-19T12:17:43Z","title_canon_sha256":"48825a0e24cc212d9b993111108a1a3f83fd991930796849eb048589b34861b3"},"schema_version":"1.0","source":{"id":"1403.4783","kind":"arxiv","version":1}},"canonical_sha256":"f65041c8c4a9e5b709d073839109736a9d650f95b92673bd521ead418227e91d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f65041c8c4a9e5b709d073839109736a9d650f95b92673bd521ead418227e91d","first_computed_at":"2026-05-18T02:27:44.688805Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:27:44.688805Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AnmZ57zNjVFrExHSQooC4yAN7+vRJnDwikgYvrSQu/pQXKabFU7XokSshrixjBUcPQzWRu4FeG/Kdu1LGsHeDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:27:44.689229Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.4783","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9b1a423768973e3f92708e3cb2bf9ef5746642001d670346120c02e7ba75870a","sha256:bcb1d40d9a7db3b5aa71c7fea214f8fbd77848017b74278e927abe762040fa2c"],"state_sha256":"9687efc5ef2d0c4ce190af0bff265fdd97e9e6a09fe6d8d241625e992faa7b8b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zR+D5qWof+OwW1iAMRRNUh8+RpzocZqiwPry9eL5Qj8egJFt7pc+KVJK/+ZE84/tsOd6/00AV0WYvggBlNsPCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-24T09:08:34.853204Z","bundle_sha256":"07f878c2f04a398f1363b25bbd871caf36562f58ef6e795d2ef34618f1070833"}}