{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:5Y3EUAY4EW25QUZWJRQGJWWIIM","short_pith_number":"pith:5Y3EUAY4","canonical_record":{"source":{"id":"0706.4429","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"2007-06-29T14:27:28Z","cross_cats_sorted":[],"title_canon_sha256":"06d7dabeb1d29e0b9250f3fccd3903ac58ff0be997827aeb0c723d203a5039a8","abstract_canon_sha256":"91c11a94b3258f454d27f44a40ce3cc3f748ad5f45f7ff465992c22ecfc657df"},"schema_version":"1.0"},"canonical_sha256":"ee364a031c25b5d853364c6064dac8430b5cb936a36fc6f8503cb72235835590","source":{"kind":"arxiv","id":"0706.4429","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0706.4429","created_at":"2026-07-04T23:52:48Z"},{"alias_kind":"arxiv_version","alias_value":"0706.4429v2","created_at":"2026-07-04T23:52:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0706.4429","created_at":"2026-07-04T23:52:48Z"},{"alias_kind":"pith_short_12","alias_value":"5Y3EUAY4EW25","created_at":"2026-07-04T23:52:48Z"},{"alias_kind":"pith_short_16","alias_value":"5Y3EUAY4EW25QUZW","created_at":"2026-07-04T23:52:48Z"},{"alias_kind":"pith_short_8","alias_value":"5Y3EUAY4","created_at":"2026-07-04T23:52:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:5Y3EUAY4EW25QUZWJRQGJWWIIM","target":"record","payload":{"canonical_record":{"source":{"id":"0706.4429","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"2007-06-29T14:27:28Z","cross_cats_sorted":[],"title_canon_sha256":"06d7dabeb1d29e0b9250f3fccd3903ac58ff0be997827aeb0c723d203a5039a8","abstract_canon_sha256":"91c11a94b3258f454d27f44a40ce3cc3f748ad5f45f7ff465992c22ecfc657df"},"schema_version":"1.0"},"canonical_sha256":"ee364a031c25b5d853364c6064dac8430b5cb936a36fc6f8503cb72235835590","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:52:48.661069Z","signature_b64":"D5OX7lvBoJkXxV3lqJGed72rdFC89LWAUD8QYfF6vztRwtJYkycmr07g0mya8ji7lupKb0XrDsPY+ovcbK3lCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ee364a031c25b5d853364c6064dac8430b5cb936a36fc6f8503cb72235835590","last_reissued_at":"2026-07-04T23:52:48.660659Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:52:48.660659Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0706.4429","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T23:52:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vkP9aYGklDgzoVUa8cB+9XL+v/W7fenUNlmgGIK5aIUEzpCKFXo1ohh/RUci7xGn29w1lZNZ3kUqo0IuLYunBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T08:09:26.732880Z"},"content_sha256":"0ca292c3d2bc98e38693b4e11ad93493455976d530be38bd0fdacd71685ef433","schema_version":"1.0","event_id":"sha256:0ca292c3d2bc98e38693b4e11ad93493455976d530be38bd0fdacd71685ef433"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:5Y3EUAY4EW25QUZWJRQGJWWIIM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observation of B^0 \\to D^{*-} \\tau^+ \\nu_{\\tau} decay at Belle","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Matyja, et al (for the Belle Collaboration), M. Rozanska","submitted_at":"2007-06-29T14:27:28Z","abstract_excerpt":"We report an observation of the decay $B^0\\to D^{*-} \\tau^+ \\nu_{\\tau}$ in a data sample containing $535\\times10^6$ $B\\bar{B}$ pairs collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. We find a signal with a significance of 5.2 standard deviations and measure the branching fraction $\\mathcal{B}(B^0\\to D^{*-} \\tau ^+ \\nu_{\\tau})=(2.02 ^{+0.40}_{-0.37} (stat) \\pm 0.37 (syst)) % $. This is the first observation of an exclusive $B$ decay with a $b \\to c \\tau \\nu_{\\tau}$ transition."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0706.4429","kind":"arxiv","version":2},"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/0706.4429/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":"2026-07-04T23:52:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n8iajWMhRXLET6sFWCp1mCEW5FDmYeGJ1ALu+5McUBEprR8V1iFYn0Katl08faIkaukjUe0vimkMQFGJoWKdAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T08:09:26.733263Z"},"content_sha256":"ee4c2d2143fe04ff35d05879cbe5a1b5b516f70757dc8c1fc3b1027ceadac826","schema_version":"1.0","event_id":"sha256:ee4c2d2143fe04ff35d05879cbe5a1b5b516f70757dc8c1fc3b1027ceadac826"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5Y3EUAY4EW25QUZWJRQGJWWIIM/bundle.json","state_url":"https://pith.science/pith/5Y3EUAY4EW25QUZWJRQGJWWIIM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5Y3EUAY4EW25QUZWJRQGJWWIIM/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":"2026-08-07T08:09:26Z","links":{"resolver":"https://pith.science/pith/5Y3EUAY4EW25QUZWJRQGJWWIIM","bundle":"https://pith.science/pith/5Y3EUAY4EW25QUZWJRQGJWWIIM/bundle.json","state":"https://pith.science/pith/5Y3EUAY4EW25QUZWJRQGJWWIIM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5Y3EUAY4EW25QUZWJRQGJWWIIM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:5Y3EUAY4EW25QUZWJRQGJWWIIM","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":"91c11a94b3258f454d27f44a40ce3cc3f748ad5f45f7ff465992c22ecfc657df","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"2007-06-29T14:27:28Z","title_canon_sha256":"06d7dabeb1d29e0b9250f3fccd3903ac58ff0be997827aeb0c723d203a5039a8"},"schema_version":"1.0","source":{"id":"0706.4429","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0706.4429","created_at":"2026-07-04T23:52:48Z"},{"alias_kind":"arxiv_version","alias_value":"0706.4429v2","created_at":"2026-07-04T23:52:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0706.4429","created_at":"2026-07-04T23:52:48Z"},{"alias_kind":"pith_short_12","alias_value":"5Y3EUAY4EW25","created_at":"2026-07-04T23:52:48Z"},{"alias_kind":"pith_short_16","alias_value":"5Y3EUAY4EW25QUZW","created_at":"2026-07-04T23:52:48Z"},{"alias_kind":"pith_short_8","alias_value":"5Y3EUAY4","created_at":"2026-07-04T23:52:48Z"}],"graph_snapshots":[{"event_id":"sha256:ee4c2d2143fe04ff35d05879cbe5a1b5b516f70757dc8c1fc3b1027ceadac826","target":"graph","created_at":"2026-07-04T23:52:48Z","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/0706.4429/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report an observation of the decay $B^0\\to D^{*-} \\tau^+ \\nu_{\\tau}$ in a data sample containing $535\\times10^6$ $B\\bar{B}$ pairs collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. We find a signal with a significance of 5.2 standard deviations and measure the branching fraction $\\mathcal{B}(B^0\\to D^{*-} \\tau ^+ \\nu_{\\tau})=(2.02 ^{+0.40}_{-0.37} (stat) \\pm 0.37 (syst)) % $. This is the first observation of an exclusive $B$ decay with a $b \\to c \\tau \\nu_{\\tau}$ transition.","authors_text":"A. Matyja, et al (for the Belle Collaboration), M. Rozanska","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ex","submitted_at":"2007-06-29T14:27:28Z","title":"Observation of B^0 \\to D^{*-} \\tau^+ \\nu_{\\tau} decay at Belle"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0706.4429","kind":"arxiv","version":2},"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":"sha256:0ca292c3d2bc98e38693b4e11ad93493455976d530be38bd0fdacd71685ef433","target":"record","created_at":"2026-07-04T23:52:48Z","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":"91c11a94b3258f454d27f44a40ce3cc3f748ad5f45f7ff465992c22ecfc657df","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"2007-06-29T14:27:28Z","title_canon_sha256":"06d7dabeb1d29e0b9250f3fccd3903ac58ff0be997827aeb0c723d203a5039a8"},"schema_version":"1.0","source":{"id":"0706.4429","kind":"arxiv","version":2}},"canonical_sha256":"ee364a031c25b5d853364c6064dac8430b5cb936a36fc6f8503cb72235835590","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ee364a031c25b5d853364c6064dac8430b5cb936a36fc6f8503cb72235835590","first_computed_at":"2026-07-04T23:52:48.660659Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:52:48.660659Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"D5OX7lvBoJkXxV3lqJGed72rdFC89LWAUD8QYfF6vztRwtJYkycmr07g0mya8ji7lupKb0XrDsPY+ovcbK3lCg==","signature_status":"signed_v1","signed_at":"2026-07-04T23:52:48.661069Z","signed_message":"canonical_sha256_bytes"},"source_id":"0706.4429","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0ca292c3d2bc98e38693b4e11ad93493455976d530be38bd0fdacd71685ef433","sha256:ee4c2d2143fe04ff35d05879cbe5a1b5b516f70757dc8c1fc3b1027ceadac826"],"state_sha256":"e7c3d083e6c33d696d8e34a4d93c9f553dd713b2a43d171424f88d4d52457106"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZY5/JIt2T4WROTQxTtKv9zU8Iw7HmwLXgBrEIhNAvyvHl3LYGksmnEZxRx24bhgO2z8dCzvXv73WGVcld+ReDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T08:09:26.736120Z","bundle_sha256":"6c0ead83bef70a7e814aa163c44c1853d7507ae3c3c7ff15e9ad894ccfe8d04a"}}