{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:FNUSF63MHVFD4TFL7WWQFKEG32","short_pith_number":"pith:FNUSF63M","canonical_record":{"source":{"id":"1508.06693","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-08-27T00:23:49Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"c0e7ddcb77b71165f009585d109947d6597a0b47d065a5b77eb5a45489506214","abstract_canon_sha256":"0818ff3f55d78a48213a2c642b55fea161d26991954dfd5bb5e5486c305632d4"},"schema_version":"1.0"},"canonical_sha256":"2b6922fb6c3d4a3e4cabfdad02a886dea11a51483de8c198485a7ab41cf6d744","source":{"kind":"arxiv","id":"1508.06693","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.06693","created_at":"2026-05-18T00:38:44Z"},{"alias_kind":"arxiv_version","alias_value":"1508.06693v4","created_at":"2026-05-18T00:38:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.06693","created_at":"2026-05-18T00:38:44Z"},{"alias_kind":"pith_short_12","alias_value":"FNUSF63MHVFD","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"FNUSF63MHVFD4TFL","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"FNUSF63M","created_at":"2026-05-18T12:29:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:FNUSF63MHVFD4TFL7WWQFKEG32","target":"record","payload":{"canonical_record":{"source":{"id":"1508.06693","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-08-27T00:23:49Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"c0e7ddcb77b71165f009585d109947d6597a0b47d065a5b77eb5a45489506214","abstract_canon_sha256":"0818ff3f55d78a48213a2c642b55fea161d26991954dfd5bb5e5486c305632d4"},"schema_version":"1.0"},"canonical_sha256":"2b6922fb6c3d4a3e4cabfdad02a886dea11a51483de8c198485a7ab41cf6d744","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:38:44.229442Z","signature_b64":"wUD3e8T5HAr03AD0DfgzhD12QxRiR2CUH/ZchHBla2bs99ti0nVdGl6RcpqWkB1kD6PwIbAMHgE6Xi4QYCnuAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2b6922fb6c3d4a3e4cabfdad02a886dea11a51483de8c198485a7ab41cf6d744","last_reissued_at":"2026-05-18T00:38:44.228779Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:38:44.228779Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1508.06693","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:38:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VuuHhptcp3QKiYB/MR7yBn0eDPXvyDGa+ZIPZ0eHEHNIxPMRBFX1IKJfF78Mv93E11my1Ppeg2HLGe7Xa9LUDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T02:50:26.208120Z"},"content_sha256":"e9693959ef23e0ca35c6f893cd60393f203952fe53c7f03fd2a8ab1aa65655a4","schema_version":"1.0","event_id":"sha256:e9693959ef23e0ca35c6f893cd60393f203952fe53c7f03fd2a8ab1aa65655a4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:FNUSF63MHVFD4TFL7WWQFKEG32","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Improvements to TITAN's Mass Measurement and Decay Spectroscopy Capabilities","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"physics.ins-det","authors_text":"A.A. Kwiatkowski, A. Finlay, A.J. Mayer, A. Lennarz, A.T. Gallant, B.E. Schultz, B. Kootte, C. Andreoiu, D.A. Short, D. Lascar, E. Leistenschneider, G. Gwinner, J. Dilling, J. Even, M. Alanssari, M. Good, R. Klawitter, R. Schupp, T. Li K.G. Leach, U. Chowdhury","submitted_at":"2015-08-27T00:23:49Z","abstract_excerpt":"The study of nuclei farther from the valley of $\\beta$-stability goes hand-in-hand with shorter-lived nuclei produced in smaller abundances than their more stable counterparts. The measurement, to high precision, of nuclear masses therefore requires innovations in technique in order to keep up. TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN) facility deploys three ion traps, with a fourth in the commissioning phase, to perform and support Penning trap mass spectrometry and in-trap decay spectroscopy on some of the shortest-lived nuclei ever studied. We report on recent advances and up"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.06693","kind":"arxiv","version":4},"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":"2026-05-18T00:38:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bjEIXqzcZyy99AyYhQp+Otkdx8HHlyS9f7SdUgUHnlEWclf6ME9nViJelbz2tL9CL8rRSfVekQDAs9OBaM+EBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T02:50:26.208790Z"},"content_sha256":"c003fa31c49e2c678d62fd3a02f69da5b7db8ffb7770300db8924df605742c79","schema_version":"1.0","event_id":"sha256:c003fa31c49e2c678d62fd3a02f69da5b7db8ffb7770300db8924df605742c79"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FNUSF63MHVFD4TFL7WWQFKEG32/bundle.json","state_url":"https://pith.science/pith/FNUSF63MHVFD4TFL7WWQFKEG32/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FNUSF63MHVFD4TFL7WWQFKEG32/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":"2026-05-31T02:50:26Z","links":{"resolver":"https://pith.science/pith/FNUSF63MHVFD4TFL7WWQFKEG32","bundle":"https://pith.science/pith/FNUSF63MHVFD4TFL7WWQFKEG32/bundle.json","state":"https://pith.science/pith/FNUSF63MHVFD4TFL7WWQFKEG32/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FNUSF63MHVFD4TFL7WWQFKEG32/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:FNUSF63MHVFD4TFL7WWQFKEG32","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":"0818ff3f55d78a48213a2c642b55fea161d26991954dfd5bb5e5486c305632d4","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-08-27T00:23:49Z","title_canon_sha256":"c0e7ddcb77b71165f009585d109947d6597a0b47d065a5b77eb5a45489506214"},"schema_version":"1.0","source":{"id":"1508.06693","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.06693","created_at":"2026-05-18T00:38:44Z"},{"alias_kind":"arxiv_version","alias_value":"1508.06693v4","created_at":"2026-05-18T00:38:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.06693","created_at":"2026-05-18T00:38:44Z"},{"alias_kind":"pith_short_12","alias_value":"FNUSF63MHVFD","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"FNUSF63MHVFD4TFL","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"FNUSF63M","created_at":"2026-05-18T12:29:19Z"}],"graph_snapshots":[{"event_id":"sha256:c003fa31c49e2c678d62fd3a02f69da5b7db8ffb7770300db8924df605742c79","target":"graph","created_at":"2026-05-18T00:38:44Z","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":"The study of nuclei farther from the valley of $\\beta$-stability goes hand-in-hand with shorter-lived nuclei produced in smaller abundances than their more stable counterparts. The measurement, to high precision, of nuclear masses therefore requires innovations in technique in order to keep up. TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN) facility deploys three ion traps, with a fourth in the commissioning phase, to perform and support Penning trap mass spectrometry and in-trap decay spectroscopy on some of the shortest-lived nuclei ever studied. We report on recent advances and up","authors_text":"A.A. Kwiatkowski, A. Finlay, A.J. Mayer, A. Lennarz, A.T. Gallant, B.E. Schultz, B. Kootte, C. Andreoiu, D.A. Short, D. Lascar, E. Leistenschneider, G. Gwinner, J. Dilling, J. Even, M. Alanssari, M. Good, R. Klawitter, R. Schupp, T. Li K.G. Leach, U. Chowdhury","cross_cats":["nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-08-27T00:23:49Z","title":"Improvements to TITAN's Mass Measurement and Decay Spectroscopy Capabilities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.06693","kind":"arxiv","version":4},"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:e9693959ef23e0ca35c6f893cd60393f203952fe53c7f03fd2a8ab1aa65655a4","target":"record","created_at":"2026-05-18T00:38:44Z","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":"0818ff3f55d78a48213a2c642b55fea161d26991954dfd5bb5e5486c305632d4","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-08-27T00:23:49Z","title_canon_sha256":"c0e7ddcb77b71165f009585d109947d6597a0b47d065a5b77eb5a45489506214"},"schema_version":"1.0","source":{"id":"1508.06693","kind":"arxiv","version":4}},"canonical_sha256":"2b6922fb6c3d4a3e4cabfdad02a886dea11a51483de8c198485a7ab41cf6d744","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2b6922fb6c3d4a3e4cabfdad02a886dea11a51483de8c198485a7ab41cf6d744","first_computed_at":"2026-05-18T00:38:44.228779Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:38:44.228779Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wUD3e8T5HAr03AD0DfgzhD12QxRiR2CUH/ZchHBla2bs99ti0nVdGl6RcpqWkB1kD6PwIbAMHgE6Xi4QYCnuAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:38:44.229442Z","signed_message":"canonical_sha256_bytes"},"source_id":"1508.06693","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e9693959ef23e0ca35c6f893cd60393f203952fe53c7f03fd2a8ab1aa65655a4","sha256:c003fa31c49e2c678d62fd3a02f69da5b7db8ffb7770300db8924df605742c79"],"state_sha256":"5547310e8070aba92b819bed995b5f382e7acc99caf6ffaf7e492381a7eecf79"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xin/icP205U4X797dDkE8Quu1yhatXiV5mV02GVMaL74m15NKPTSB8yZKg6qwf22l9XaVaHaItYHhsjxc4vsCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T02:50:26.212638Z","bundle_sha256":"433e2df21d98e4f1d1c2efd0f4829edb577996908a5e0fdab9e0be8e8452df46"}}