{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:OLDRHE2V2ETK7GRUBNVD73RAYA","short_pith_number":"pith:OLDRHE2V","canonical_record":{"source":{"id":"0907.3997","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-07-23T08:05:08Z","cross_cats_sorted":[],"title_canon_sha256":"5599e0a6155258372c97793aed4dd17ac10cb4dc073237168a55a54d449c5435","abstract_canon_sha256":"8948f613194d69543aca2c5fc0cb12f1a9d4707af37c43ef7cf49966116d7337"},"schema_version":"1.0"},"canonical_sha256":"72c7139355d126af9a340b6a3fee20c0183765ef0051b3fc6debd9320a956057","source":{"kind":"arxiv","id":"0907.3997","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.3997","created_at":"2026-05-18T02:24:47Z"},{"alias_kind":"arxiv_version","alias_value":"0907.3997v2","created_at":"2026-05-18T02:24:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.3997","created_at":"2026-05-18T02:24:47Z"},{"alias_kind":"pith_short_12","alias_value":"OLDRHE2V2ETK","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"OLDRHE2V2ETK7GRU","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"OLDRHE2V","created_at":"2026-05-18T12:26:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:OLDRHE2V2ETK7GRUBNVD73RAYA","target":"record","payload":{"canonical_record":{"source":{"id":"0907.3997","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-07-23T08:05:08Z","cross_cats_sorted":[],"title_canon_sha256":"5599e0a6155258372c97793aed4dd17ac10cb4dc073237168a55a54d449c5435","abstract_canon_sha256":"8948f613194d69543aca2c5fc0cb12f1a9d4707af37c43ef7cf49966116d7337"},"schema_version":"1.0"},"canonical_sha256":"72c7139355d126af9a340b6a3fee20c0183765ef0051b3fc6debd9320a956057","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:24:47.916250Z","signature_b64":"gSFZR455NPezvoqLZfIU+cW8FMbjHrN3yrXr7ohLvg+eZgldqq9y16leEZZfjYGCDSYjI2jRycFy7Tq3mrtGCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"72c7139355d126af9a340b6a3fee20c0183765ef0051b3fc6debd9320a956057","last_reissued_at":"2026-05-18T02:24:47.915548Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:24:47.915548Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0907.3997","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":"2026-05-18T02:24:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PP1FpbeGc6zT0oOXGPTc0iID3po0/bnwMF9Cwr7ZD71PG4PTDItjzFgu+Jfa0VpHLAaLZHm3xw2BCLQ1/ENQDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T03:31:00.638045Z"},"content_sha256":"1556678a42cfc5c9f858f2ef3c570db9610e03eb14936fabedd39d3fc412818d","schema_version":"1.0","event_id":"sha256:1556678a42cfc5c9f858f2ef3c570db9610e03eb14936fabedd39d3fc412818d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:OLDRHE2V2ETK7GRUBNVD73RAYA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Coupled channel approach to the structure of the X(3872)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"D.R. Entem, F. Fernandez, J. Segovia, P.G. Ortega","submitted_at":"2009-07-23T08:05:08Z","abstract_excerpt":"We have performed a coupled channel calculation of the $1^{++}$ $c\\bar c$ sector including $q\\bar q$ and $DD^*$ molecular configurations. The calculation was done within a constituent quark model which successfully describes the meson spectrum, in particular the $c\\bar c$ $1^{--}$ sector. Two and four quark configurations are coupled using the $^3P_0$ model. The elusive X(3872) meson appears as a new state with a high probability for the $DD^*$ molecular component. When the mass difference between neutral and charged states is included a large $D^0 {D^*}^0$ component is found which dominates f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.3997","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":""},"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":"2026-05-18T02:24:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UyWAefoL3pYtk9dITEWWYafO/2wrA0begKh0OvXsPseVKspq91eNJgpRONTw/weZkEAC/vGV+JkGkUnBDEEOCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T03:31:00.638479Z"},"content_sha256":"ef4a07c53b1b21cc16f7b218d8029e8cc8af3111acbaefff583c12bd2a1e0635","schema_version":"1.0","event_id":"sha256:ef4a07c53b1b21cc16f7b218d8029e8cc8af3111acbaefff583c12bd2a1e0635"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OLDRHE2V2ETK7GRUBNVD73RAYA/bundle.json","state_url":"https://pith.science/pith/OLDRHE2V2ETK7GRUBNVD73RAYA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OLDRHE2V2ETK7GRUBNVD73RAYA/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":"2026-05-31T03:31:00Z","links":{"resolver":"https://pith.science/pith/OLDRHE2V2ETK7GRUBNVD73RAYA","bundle":"https://pith.science/pith/OLDRHE2V2ETK7GRUBNVD73RAYA/bundle.json","state":"https://pith.science/pith/OLDRHE2V2ETK7GRUBNVD73RAYA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OLDRHE2V2ETK7GRUBNVD73RAYA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:OLDRHE2V2ETK7GRUBNVD73RAYA","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":"8948f613194d69543aca2c5fc0cb12f1a9d4707af37c43ef7cf49966116d7337","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-07-23T08:05:08Z","title_canon_sha256":"5599e0a6155258372c97793aed4dd17ac10cb4dc073237168a55a54d449c5435"},"schema_version":"1.0","source":{"id":"0907.3997","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.3997","created_at":"2026-05-18T02:24:47Z"},{"alias_kind":"arxiv_version","alias_value":"0907.3997v2","created_at":"2026-05-18T02:24:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.3997","created_at":"2026-05-18T02:24:47Z"},{"alias_kind":"pith_short_12","alias_value":"OLDRHE2V2ETK","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"OLDRHE2V2ETK7GRU","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"OLDRHE2V","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:ef4a07c53b1b21cc16f7b218d8029e8cc8af3111acbaefff583c12bd2a1e0635","target":"graph","created_at":"2026-05-18T02:24:47Z","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 have performed a coupled channel calculation of the $1^{++}$ $c\\bar c$ sector including $q\\bar q$ and $DD^*$ molecular configurations. The calculation was done within a constituent quark model which successfully describes the meson spectrum, in particular the $c\\bar c$ $1^{--}$ sector. Two and four quark configurations are coupled using the $^3P_0$ model. The elusive X(3872) meson appears as a new state with a high probability for the $DD^*$ molecular component. When the mass difference between neutral and charged states is included a large $D^0 {D^*}^0$ component is found which dominates f","authors_text":"D.R. Entem, F. Fernandez, J. Segovia, P.G. Ortega","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-07-23T08:05:08Z","title":"Coupled channel approach to the structure of the X(3872)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.3997","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":"sha256:1556678a42cfc5c9f858f2ef3c570db9610e03eb14936fabedd39d3fc412818d","target":"record","created_at":"2026-05-18T02:24:47Z","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":"8948f613194d69543aca2c5fc0cb12f1a9d4707af37c43ef7cf49966116d7337","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-07-23T08:05:08Z","title_canon_sha256":"5599e0a6155258372c97793aed4dd17ac10cb4dc073237168a55a54d449c5435"},"schema_version":"1.0","source":{"id":"0907.3997","kind":"arxiv","version":2}},"canonical_sha256":"72c7139355d126af9a340b6a3fee20c0183765ef0051b3fc6debd9320a956057","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"72c7139355d126af9a340b6a3fee20c0183765ef0051b3fc6debd9320a956057","first_computed_at":"2026-05-18T02:24:47.915548Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:24:47.915548Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gSFZR455NPezvoqLZfIU+cW8FMbjHrN3yrXr7ohLvg+eZgldqq9y16leEZZfjYGCDSYjI2jRycFy7Tq3mrtGCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:24:47.916250Z","signed_message":"canonical_sha256_bytes"},"source_id":"0907.3997","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1556678a42cfc5c9f858f2ef3c570db9610e03eb14936fabedd39d3fc412818d","sha256:ef4a07c53b1b21cc16f7b218d8029e8cc8af3111acbaefff583c12bd2a1e0635"],"state_sha256":"7e17f3b6a3baaf6c7e43159196e55224ffbb639bd1e3b891f1214465150f7824"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mZvT2hgC2kYX6C+8Hie3h2JNjN14blIeNWNtT3PM5kLB6iLKzwQjy0tRYsb9WqVO2DSI/DHFp1/wpZniTnsXDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T03:31:00.640604Z","bundle_sha256":"054c8183d2ad603639335b414e9189d65407bb930016954e63ddf397a69cae13"}}