{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:ACJ3D2DJC5WENCIJWGQ2WCIKWI","short_pith_number":"pith:ACJ3D2DJ","canonical_record":{"source":{"id":"0907.3407","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2009-07-20T14:08:29Z","cross_cats_sorted":[],"title_canon_sha256":"39a2bcc0360c2e256c3e1e174762e1a6d62181af644b4412fe4b2666f8b82a47","abstract_canon_sha256":"52812305d8bcb6de25d374ed0ffc804872a5604a8e8b9b19dbb5e2680b3d2e8f"},"schema_version":"1.0"},"canonical_sha256":"0093b1e869176c468909b1a1ab090ab23ef4f3a6bedce5ba22b57f615feb220d","source":{"kind":"arxiv","id":"0907.3407","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.3407","created_at":"2026-07-04T23:53:02Z"},{"alias_kind":"arxiv_version","alias_value":"0907.3407v2","created_at":"2026-07-04T23:53:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.3407","created_at":"2026-07-04T23:53:02Z"},{"alias_kind":"pith_short_12","alias_value":"ACJ3D2DJC5WE","created_at":"2026-07-04T23:53:02Z"},{"alias_kind":"pith_short_16","alias_value":"ACJ3D2DJC5WENCIJ","created_at":"2026-07-04T23:53:02Z"},{"alias_kind":"pith_short_8","alias_value":"ACJ3D2DJ","created_at":"2026-07-04T23:53:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:ACJ3D2DJC5WENCIJWGQ2WCIKWI","target":"record","payload":{"canonical_record":{"source":{"id":"0907.3407","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2009-07-20T14:08:29Z","cross_cats_sorted":[],"title_canon_sha256":"39a2bcc0360c2e256c3e1e174762e1a6d62181af644b4412fe4b2666f8b82a47","abstract_canon_sha256":"52812305d8bcb6de25d374ed0ffc804872a5604a8e8b9b19dbb5e2680b3d2e8f"},"schema_version":"1.0"},"canonical_sha256":"0093b1e869176c468909b1a1ab090ab23ef4f3a6bedce5ba22b57f615feb220d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:53:02.130417Z","signature_b64":"RcCnq08SVHxOVb3j0hqGqrg7OIKfSGG7v110gzTe/Nj17wKOFbbQgUYo8nqsYe9kIHJP+V9tQkA/gbJcjW1MCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0093b1e869176c468909b1a1ab090ab23ef4f3a6bedce5ba22b57f615feb220d","last_reissued_at":"2026-07-04T23:53:02.130053Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:53:02.130053Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0907.3407","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":"2026-07-04T23:53:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kUesCSABam5W30SvIilxdpJ+zv1n9daAEsLUl/rKRlLYk2fDlKLiVsLeFFOwpVPRmTN3CdXwRTCy7DQcGNE+CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T12:53:47.309680Z"},"content_sha256":"2f2f121d75b6848637af07bc3a5be4f67880ad93c6590b9f8accebc3a932e89f","schema_version":"1.0","event_id":"sha256:2f2f121d75b6848637af07bc3a5be4f67880ad93c6590b9f8accebc3a932e89f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:ACJ3D2DJC5WENCIJWGQ2WCIKWI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Heavy Flavor Tracker (HFT) : A new inner tracking device at STAR","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"Jonathan Bouchet (for the STAR Collaboration)","submitted_at":"2009-07-20T14:08:29Z","abstract_excerpt":"The HFT, a new inner tracking detector for STAR, aims to measure the charmed hadron nuclear modification factor as well as their elliptic flow to the low $p_\\mathrm{T}$ region ($\\sim$0.5 GeV/c) by measuring the displaced vertices of charmed particles."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.3407","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/0907.3407/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":"2026-07-04T23:53:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qwOSdtD3EeCUbWsuUKgqc1q455cQYrp7UcXvbi77gcSwmPYR1zHoPQTkvfrD6EKozBRorurG6pxpC8d2cD6MAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T12:53:47.310396Z"},"content_sha256":"135c25653cb528752f6cc12a78b736021e240b9660652a6308ba4b8b030b413e","schema_version":"1.0","event_id":"sha256:135c25653cb528752f6cc12a78b736021e240b9660652a6308ba4b8b030b413e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ACJ3D2DJC5WENCIJWGQ2WCIKWI/bundle.json","state_url":"https://pith.science/pith/ACJ3D2DJC5WENCIJWGQ2WCIKWI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ACJ3D2DJC5WENCIJWGQ2WCIKWI/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":"2026-08-13T12:53:47Z","links":{"resolver":"https://pith.science/pith/ACJ3D2DJC5WENCIJWGQ2WCIKWI","bundle":"https://pith.science/pith/ACJ3D2DJC5WENCIJWGQ2WCIKWI/bundle.json","state":"https://pith.science/pith/ACJ3D2DJC5WENCIJWGQ2WCIKWI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ACJ3D2DJC5WENCIJWGQ2WCIKWI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:ACJ3D2DJC5WENCIJWGQ2WCIKWI","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":"52812305d8bcb6de25d374ed0ffc804872a5604a8e8b9b19dbb5e2680b3d2e8f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2009-07-20T14:08:29Z","title_canon_sha256":"39a2bcc0360c2e256c3e1e174762e1a6d62181af644b4412fe4b2666f8b82a47"},"schema_version":"1.0","source":{"id":"0907.3407","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.3407","created_at":"2026-07-04T23:53:02Z"},{"alias_kind":"arxiv_version","alias_value":"0907.3407v2","created_at":"2026-07-04T23:53:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.3407","created_at":"2026-07-04T23:53:02Z"},{"alias_kind":"pith_short_12","alias_value":"ACJ3D2DJC5WE","created_at":"2026-07-04T23:53:02Z"},{"alias_kind":"pith_short_16","alias_value":"ACJ3D2DJC5WENCIJ","created_at":"2026-07-04T23:53:02Z"},{"alias_kind":"pith_short_8","alias_value":"ACJ3D2DJ","created_at":"2026-07-04T23:53:02Z"}],"graph_snapshots":[{"event_id":"sha256:135c25653cb528752f6cc12a78b736021e240b9660652a6308ba4b8b030b413e","target":"graph","created_at":"2026-07-04T23:53:02Z","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/0907.3407/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The HFT, a new inner tracking detector for STAR, aims to measure the charmed hadron nuclear modification factor as well as their elliptic flow to the low $p_\\mathrm{T}$ region ($\\sim$0.5 GeV/c) by measuring the displaced vertices of charmed particles.","authors_text":"Jonathan Bouchet (for the STAR Collaboration)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2009-07-20T14:08:29Z","title":"Heavy Flavor Tracker (HFT) : A new inner tracking device at STAR"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.3407","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":"sha256:2f2f121d75b6848637af07bc3a5be4f67880ad93c6590b9f8accebc3a932e89f","target":"record","created_at":"2026-07-04T23:53:02Z","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":"52812305d8bcb6de25d374ed0ffc804872a5604a8e8b9b19dbb5e2680b3d2e8f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2009-07-20T14:08:29Z","title_canon_sha256":"39a2bcc0360c2e256c3e1e174762e1a6d62181af644b4412fe4b2666f8b82a47"},"schema_version":"1.0","source":{"id":"0907.3407","kind":"arxiv","version":2}},"canonical_sha256":"0093b1e869176c468909b1a1ab090ab23ef4f3a6bedce5ba22b57f615feb220d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0093b1e869176c468909b1a1ab090ab23ef4f3a6bedce5ba22b57f615feb220d","first_computed_at":"2026-07-04T23:53:02.130053Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:53:02.130053Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RcCnq08SVHxOVb3j0hqGqrg7OIKfSGG7v110gzTe/Nj17wKOFbbQgUYo8nqsYe9kIHJP+V9tQkA/gbJcjW1MCw==","signature_status":"signed_v1","signed_at":"2026-07-04T23:53:02.130417Z","signed_message":"canonical_sha256_bytes"},"source_id":"0907.3407","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2f2f121d75b6848637af07bc3a5be4f67880ad93c6590b9f8accebc3a932e89f","sha256:135c25653cb528752f6cc12a78b736021e240b9660652a6308ba4b8b030b413e"],"state_sha256":"eaf8332c59f2cf796f11667b129e91e003282074f0473e936e2b683906620b86"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QZFJGQBD/ELQUO3JQ0kQXAM5SxTskM+qaDllGtBEu3Ypbg79D6p8nxxZe3yKQPCbukj/3TiJGRKxZm+bR5a3BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T12:53:47.314653Z","bundle_sha256":"66570703dbdddc24e3e585816e7ce0bf1333e172bff99f4ca704f3d8d4d9825f"}}