{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1992:7EQUTMZ555YUQHBZXWKGSJWF32","short_pith_number":"pith:7EQUTMZ5","canonical_record":{"source":{"id":"hep-ph/9207235","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1992-07-11T21:42:26Z","cross_cats_sorted":[],"title_canon_sha256":"33f0825ffedcb95aa8f51400d75433b84b54c674caf1bae3fef900cbdc56ce77","abstract_canon_sha256":"345834fb4f67ec20e1686017794b44e8832c7e6b4ee46f68c9a4f24729ba4099"},"schema_version":"1.0"},"canonical_sha256":"f92149b33def71481c39bd946926c5dea514382209e1640efdd9f88ff757e591","source":{"kind":"arxiv","id":"hep-ph/9207235","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9207235","created_at":"2026-07-04T15:54:56Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9207235v1","created_at":"2026-07-04T15:54:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9207235","created_at":"2026-07-04T15:54:56Z"},{"alias_kind":"pith_short_12","alias_value":"7EQUTMZ555YU","created_at":"2026-07-04T15:54:56Z"},{"alias_kind":"pith_short_16","alias_value":"7EQUTMZ555YUQHBZ","created_at":"2026-07-04T15:54:56Z"},{"alias_kind":"pith_short_8","alias_value":"7EQUTMZ5","created_at":"2026-07-04T15:54:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1992:7EQUTMZ555YUQHBZXWKGSJWF32","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/9207235","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1992-07-11T21:42:26Z","cross_cats_sorted":[],"title_canon_sha256":"33f0825ffedcb95aa8f51400d75433b84b54c674caf1bae3fef900cbdc56ce77","abstract_canon_sha256":"345834fb4f67ec20e1686017794b44e8832c7e6b4ee46f68c9a4f24729ba4099"},"schema_version":"1.0"},"canonical_sha256":"f92149b33def71481c39bd946926c5dea514382209e1640efdd9f88ff757e591","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:54:56.054463Z","signature_b64":"aD8Z8MXAsefBZk1UojNYASgjDUVaoTsZE2y9S4iNPaUB7iRIjSIL6ueT2ik3wQzNdteW9Eter//WrXE6Ve1mDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f92149b33def71481c39bd946926c5dea514382209e1640efdd9f88ff757e591","last_reissued_at":"2026-07-04T15:54:56.054044Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:54:56.054044Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/9207235","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":"2026-07-04T15:54:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N/9z8jY6+7d7apGUeVfqyo/kPSjsA20hztZ8c4CZUZfrf5SdhjS+ecRO7WS794maKImlUrFkpkWp41OfyBy2AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T09:19:58.503538Z"},"content_sha256":"1a5d2e5468596b05b5e45324ba993304331185bd727c3620d04afba02bab19f5","schema_version":"1.0","event_id":"sha256:1a5d2e5468596b05b5e45324ba993304331185bd727c3620d04afba02bab19f5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1992:7EQUTMZ555YUQHBZXWKGSJWF32","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Meson Decay Constants from Isospin Mass Splittings in the Quark Model","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"J.F. Amundson, J.L. Rosner, M.A. Kelly, N. Horowitz, S.L. Stone","submitted_at":"1992-07-11T21:42:26Z","abstract_excerpt":"Decay constants of $D$ and $B$ mesons are estimated within the framework of a heavy-quark approach using measured isospin mass splittings in the $D$, $D^*$, and $B$ states to isolate the electromagnetic hyperfine interaction between quarks. The values $f_D = (262 \\pm 29)$ MeV and $f_B = (160 \\pm 17)$ MeV are obtained. Only experimental errors are given; possible theoretical ambiguities, and suggestions for reducing them, are noted."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9207235","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ph/9207235/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T15:54:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mgGNVu5ak4ooFsj+enpPGib+rkySoMOYbE9+t/f5ktG3/eF8WxSMGtLUkwV/E0LeVyadLETv2FDwt8rBkzBWDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T09:19:58.504413Z"},"content_sha256":"71a6236f38d00a030e0076b6414d9a6847615e01a04fce8770c14ccdf50fcce2","schema_version":"1.0","event_id":"sha256:71a6236f38d00a030e0076b6414d9a6847615e01a04fce8770c14ccdf50fcce2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7EQUTMZ555YUQHBZXWKGSJWF32/bundle.json","state_url":"https://pith.science/pith/7EQUTMZ555YUQHBZXWKGSJWF32/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7EQUTMZ555YUQHBZXWKGSJWF32/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":"2026-08-07T09:19:58Z","links":{"resolver":"https://pith.science/pith/7EQUTMZ555YUQHBZXWKGSJWF32","bundle":"https://pith.science/pith/7EQUTMZ555YUQHBZXWKGSJWF32/bundle.json","state":"https://pith.science/pith/7EQUTMZ555YUQHBZXWKGSJWF32/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7EQUTMZ555YUQHBZXWKGSJWF32/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1992:7EQUTMZ555YUQHBZXWKGSJWF32","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":"345834fb4f67ec20e1686017794b44e8832c7e6b4ee46f68c9a4f24729ba4099","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1992-07-11T21:42:26Z","title_canon_sha256":"33f0825ffedcb95aa8f51400d75433b84b54c674caf1bae3fef900cbdc56ce77"},"schema_version":"1.0","source":{"id":"hep-ph/9207235","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9207235","created_at":"2026-07-04T15:54:56Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9207235v1","created_at":"2026-07-04T15:54:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9207235","created_at":"2026-07-04T15:54:56Z"},{"alias_kind":"pith_short_12","alias_value":"7EQUTMZ555YU","created_at":"2026-07-04T15:54:56Z"},{"alias_kind":"pith_short_16","alias_value":"7EQUTMZ555YUQHBZ","created_at":"2026-07-04T15:54:56Z"},{"alias_kind":"pith_short_8","alias_value":"7EQUTMZ5","created_at":"2026-07-04T15:54:56Z"}],"graph_snapshots":[{"event_id":"sha256:71a6236f38d00a030e0076b6414d9a6847615e01a04fce8770c14ccdf50fcce2","target":"graph","created_at":"2026-07-04T15:54:56Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/hep-ph/9207235/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Decay constants of $D$ and $B$ mesons are estimated within the framework of a heavy-quark approach using measured isospin mass splittings in the $D$, $D^*$, and $B$ states to isolate the electromagnetic hyperfine interaction between quarks. The values $f_D = (262 \\pm 29)$ MeV and $f_B = (160 \\pm 17)$ MeV are obtained. Only experimental errors are given; possible theoretical ambiguities, and suggestions for reducing them, are noted.","authors_text":"J.F. Amundson, J.L. Rosner, M.A. Kelly, N. Horowitz, S.L. Stone","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1992-07-11T21:42:26Z","title":"Meson Decay Constants from Isospin Mass Splittings in the Quark Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9207235","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":"sha256:1a5d2e5468596b05b5e45324ba993304331185bd727c3620d04afba02bab19f5","target":"record","created_at":"2026-07-04T15:54:56Z","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":"345834fb4f67ec20e1686017794b44e8832c7e6b4ee46f68c9a4f24729ba4099","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1992-07-11T21:42:26Z","title_canon_sha256":"33f0825ffedcb95aa8f51400d75433b84b54c674caf1bae3fef900cbdc56ce77"},"schema_version":"1.0","source":{"id":"hep-ph/9207235","kind":"arxiv","version":1}},"canonical_sha256":"f92149b33def71481c39bd946926c5dea514382209e1640efdd9f88ff757e591","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f92149b33def71481c39bd946926c5dea514382209e1640efdd9f88ff757e591","first_computed_at":"2026-07-04T15:54:56.054044Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:54:56.054044Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aD8Z8MXAsefBZk1UojNYASgjDUVaoTsZE2y9S4iNPaUB7iRIjSIL6ueT2ik3wQzNdteW9Eter//WrXE6Ve1mDA==","signature_status":"signed_v1","signed_at":"2026-07-04T15:54:56.054463Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9207235","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1a5d2e5468596b05b5e45324ba993304331185bd727c3620d04afba02bab19f5","sha256:71a6236f38d00a030e0076b6414d9a6847615e01a04fce8770c14ccdf50fcce2"],"state_sha256":"91a6154a988d8089697be0edb6d0503de20f5972ba20e02c5942bd8388613f61"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"74CWwlVcelpb6uofybyAKGmvdFDJEDQiVXo6RW/F4j6LqqpHOusv3ADzF3SArnJ2CdJ680DkOquU/WnJiN+GDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T09:19:58.510410Z","bundle_sha256":"0e8989aa9766e89c24cc0a77d8b8373797f7cfc19ef2218ddae6271588f2a48f"}}