{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:IQUGFEM26QIPYCPORXUHF3IPSS","short_pith_number":"pith:IQUGFEM2","canonical_record":{"source":{"id":"0907.2950","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-07-17T04:13:56Z","cross_cats_sorted":[],"title_canon_sha256":"19ae341ef683e32f37148abf7f475bfa8474122481cfdc68f1a0479ce5c8dc38","abstract_canon_sha256":"1f019e44542bebe49b8d9e3a7c01656fadfc53c9be882cc9707bee85dbb6a25b"},"schema_version":"1.0"},"canonical_sha256":"442862919af410fc09ee8de872ed0f94abdbdf28d111f804449330ca9b4f4e93","source":{"kind":"arxiv","id":"0907.2950","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.2950","created_at":"2026-07-04T15:46:16Z"},{"alias_kind":"arxiv_version","alias_value":"0907.2950v1","created_at":"2026-07-04T15:46:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.2950","created_at":"2026-07-04T15:46:16Z"},{"alias_kind":"pith_short_12","alias_value":"IQUGFEM26QIP","created_at":"2026-07-04T15:46:16Z"},{"alias_kind":"pith_short_16","alias_value":"IQUGFEM26QIPYCPO","created_at":"2026-07-04T15:46:16Z"},{"alias_kind":"pith_short_8","alias_value":"IQUGFEM2","created_at":"2026-07-04T15:46:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:IQUGFEM26QIPYCPORXUHF3IPSS","target":"record","payload":{"canonical_record":{"source":{"id":"0907.2950","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-07-17T04:13:56Z","cross_cats_sorted":[],"title_canon_sha256":"19ae341ef683e32f37148abf7f475bfa8474122481cfdc68f1a0479ce5c8dc38","abstract_canon_sha256":"1f019e44542bebe49b8d9e3a7c01656fadfc53c9be882cc9707bee85dbb6a25b"},"schema_version":"1.0"},"canonical_sha256":"442862919af410fc09ee8de872ed0f94abdbdf28d111f804449330ca9b4f4e93","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:46:16.555271Z","signature_b64":"VX1ChNGayxZA1MJCVNwytaOKLKsKk/cL9ak4+cgDdyYDfTIw56DXHmbXcqSETS/YfcxXt8evfjNwOJydAtvrBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"442862919af410fc09ee8de872ed0f94abdbdf28d111f804449330ca9b4f4e93","last_reissued_at":"2026-07-04T15:46:16.554863Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:46:16.554863Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0907.2950","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":"2026-07-04T15:46:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DWZvVRZKqgD/SumFyiDdJZkfJtU0qHix/vBzo8+FL7UvJMS3yLfZrQPIuKSxX3tZAlrySYl+tzmOesBqsXMfBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T11:01:00.785963Z"},"content_sha256":"b4afae0373b1b4d00cdf25f8f8f7f2f87745b78a55cea0828bdb250aa79989f7","schema_version":"1.0","event_id":"sha256:b4afae0373b1b4d00cdf25f8f8f7f2f87745b78a55cea0828bdb250aa79989f7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:IQUGFEM26QIPYCPORXUHF3IPSS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"No Pain, No Gain -- On the Challenges and Promises of Charm Studies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"I.I. Bigi","submitted_at":"2009-07-17T04:13:56Z","abstract_excerpt":"The observation of $D^0 - \\bar D^0$ oscillations has left us in a tantalizing quandary concerning the theoretical interpretation: are they still compatible with the SM or might they require new dynamics (NP)? A comprehensive search for CP violation in $D$ decays should resolve the issue. Finding it should provide compelling evidence for the intervention of New Physics. While the absolute size of CP asymmetries will presumably be modest at best, the ratio of `signal' to `noise' -- i.e. NP over SM contributions -- might well be larger for $D$ than $B$ transitions. A list of promising channels is"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.2950","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/0907.2950/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":"2026-07-04T15:46:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zGXTO94+MBxD6UyVCruDYWxj3QgkS6IuQ5s/QvTiaErdpvQvo7Ad+Km1CufIdWmoIqAGSKy33cAIi90nxFuzBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T11:01:00.786358Z"},"content_sha256":"5c15eb53c6b5bcad654a83b30dff89254c16ad7500b8857dd563ed03cfd02d1c","schema_version":"1.0","event_id":"sha256:5c15eb53c6b5bcad654a83b30dff89254c16ad7500b8857dd563ed03cfd02d1c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IQUGFEM26QIPYCPORXUHF3IPSS/bundle.json","state_url":"https://pith.science/pith/IQUGFEM26QIPYCPORXUHF3IPSS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IQUGFEM26QIPYCPORXUHF3IPSS/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":"2026-07-07T11:01:00Z","links":{"resolver":"https://pith.science/pith/IQUGFEM26QIPYCPORXUHF3IPSS","bundle":"https://pith.science/pith/IQUGFEM26QIPYCPORXUHF3IPSS/bundle.json","state":"https://pith.science/pith/IQUGFEM26QIPYCPORXUHF3IPSS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IQUGFEM26QIPYCPORXUHF3IPSS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:IQUGFEM26QIPYCPORXUHF3IPSS","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":"1f019e44542bebe49b8d9e3a7c01656fadfc53c9be882cc9707bee85dbb6a25b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-07-17T04:13:56Z","title_canon_sha256":"19ae341ef683e32f37148abf7f475bfa8474122481cfdc68f1a0479ce5c8dc38"},"schema_version":"1.0","source":{"id":"0907.2950","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.2950","created_at":"2026-07-04T15:46:16Z"},{"alias_kind":"arxiv_version","alias_value":"0907.2950v1","created_at":"2026-07-04T15:46:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.2950","created_at":"2026-07-04T15:46:16Z"},{"alias_kind":"pith_short_12","alias_value":"IQUGFEM26QIP","created_at":"2026-07-04T15:46:16Z"},{"alias_kind":"pith_short_16","alias_value":"IQUGFEM26QIPYCPO","created_at":"2026-07-04T15:46:16Z"},{"alias_kind":"pith_short_8","alias_value":"IQUGFEM2","created_at":"2026-07-04T15:46:16Z"}],"graph_snapshots":[{"event_id":"sha256:5c15eb53c6b5bcad654a83b30dff89254c16ad7500b8857dd563ed03cfd02d1c","target":"graph","created_at":"2026-07-04T15:46:16Z","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/0907.2950/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The observation of $D^0 - \\bar D^0$ oscillations has left us in a tantalizing quandary concerning the theoretical interpretation: are they still compatible with the SM or might they require new dynamics (NP)? A comprehensive search for CP violation in $D$ decays should resolve the issue. Finding it should provide compelling evidence for the intervention of New Physics. While the absolute size of CP asymmetries will presumably be modest at best, the ratio of `signal' to `noise' -- i.e. NP over SM contributions -- might well be larger for $D$ than $B$ transitions. A list of promising channels is","authors_text":"I.I. Bigi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-07-17T04:13:56Z","title":"No Pain, No Gain -- On the Challenges and Promises of Charm Studies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.2950","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:b4afae0373b1b4d00cdf25f8f8f7f2f87745b78a55cea0828bdb250aa79989f7","target":"record","created_at":"2026-07-04T15:46:16Z","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":"1f019e44542bebe49b8d9e3a7c01656fadfc53c9be882cc9707bee85dbb6a25b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-07-17T04:13:56Z","title_canon_sha256":"19ae341ef683e32f37148abf7f475bfa8474122481cfdc68f1a0479ce5c8dc38"},"schema_version":"1.0","source":{"id":"0907.2950","kind":"arxiv","version":1}},"canonical_sha256":"442862919af410fc09ee8de872ed0f94abdbdf28d111f804449330ca9b4f4e93","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"442862919af410fc09ee8de872ed0f94abdbdf28d111f804449330ca9b4f4e93","first_computed_at":"2026-07-04T15:46:16.554863Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:46:16.554863Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VX1ChNGayxZA1MJCVNwytaOKLKsKk/cL9ak4+cgDdyYDfTIw56DXHmbXcqSETS/YfcxXt8evfjNwOJydAtvrBw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:46:16.555271Z","signed_message":"canonical_sha256_bytes"},"source_id":"0907.2950","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b4afae0373b1b4d00cdf25f8f8f7f2f87745b78a55cea0828bdb250aa79989f7","sha256:5c15eb53c6b5bcad654a83b30dff89254c16ad7500b8857dd563ed03cfd02d1c"],"state_sha256":"69c456175862f501f8f7221c9f9ffeed046e9d47425350cb53793f20b211e17b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bjlkY05SuO4bpVFW+ztN8a+paFdpUKZacvZktI2UbFHQMzKQ+chZsf+y1n0bYoD/6kVQI0DSyw2g+hz9IbHyBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T11:01:00.788363Z","bundle_sha256":"99e49daea78d8ac9c6c62acf8e024d749297a213c98cd2e89d895710f130f748"}}