{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:B53ZBDXWMT2OQAKJE7QEHA6FL6","short_pith_number":"pith:B53ZBDXW","canonical_record":{"source":{"id":"hep-ex/0612007","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"2006-12-05T00:36:50Z","cross_cats_sorted":[],"title_canon_sha256":"146505016172306734506eb2c38352f0ea2bec1af9a9c6266d1361e51e966d62","abstract_canon_sha256":"4f3e480f6e615d1d09d6939a79f5e889e29531f85617a43f185a4ca44aa36d2f"},"schema_version":"1.0"},"canonical_sha256":"0f77908ef664f4e8014927e04383c55f85c420e36b72e816006660901bec28a2","source":{"kind":"arxiv","id":"hep-ex/0612007","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/0612007","created_at":"2026-07-04T15:25:08Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/0612007v1","created_at":"2026-07-04T15:25:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/0612007","created_at":"2026-07-04T15:25:08Z"},{"alias_kind":"pith_short_12","alias_value":"B53ZBDXWMT2O","created_at":"2026-07-04T15:25:08Z"},{"alias_kind":"pith_short_16","alias_value":"B53ZBDXWMT2OQAKJ","created_at":"2026-07-04T15:25:08Z"},{"alias_kind":"pith_short_8","alias_value":"B53ZBDXW","created_at":"2026-07-04T15:25:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:B53ZBDXWMT2OQAKJE7QEHA6FL6","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ex/0612007","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"2006-12-05T00:36:50Z","cross_cats_sorted":[],"title_canon_sha256":"146505016172306734506eb2c38352f0ea2bec1af9a9c6266d1361e51e966d62","abstract_canon_sha256":"4f3e480f6e615d1d09d6939a79f5e889e29531f85617a43f185a4ca44aa36d2f"},"schema_version":"1.0"},"canonical_sha256":"0f77908ef664f4e8014927e04383c55f85c420e36b72e816006660901bec28a2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:25:08.640963Z","signature_b64":"ez9BFaMcRuuQg+bk36+amA4g7n2K4usfn+L6J9+3pw1YUxbmW4ZYj9k4ASoGSNC+OxCM3MRtsYlvJDyBtiWmDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0f77908ef664f4e8014927e04383c55f85c420e36b72e816006660901bec28a2","last_reissued_at":"2026-07-04T15:25:08.640559Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:25:08.640559Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ex/0612007","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":"2026-07-04T15:25:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7J4lNrEHbmqohVJzcxXhTDJ7J/mNTl7URmp22vTvmV4k+BimuSMiUsdgzMulFO0Bs2SHh+U6vT4maDFLtIucAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T02:47:48.731460Z"},"content_sha256":"b9e1113a155750874f12a0617cebe44e61d20b8d0b53fe8aec4b9bff3f31394e","schema_version":"1.0","event_id":"sha256:b9e1113a155750874f12a0617cebe44e61d20b8d0b53fe8aec4b9bff3f31394e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:B53ZBDXWMT2OQAKJE7QEHA6FL6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Main Injector Particle Physics Experiment (MIPP FNAL E-907) at Fermilab - status and plans","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"Rajendran Raja","submitted_at":"2006-12-05T00:36:50Z","abstract_excerpt":"We describe the status of the Main Injector particle production Experiment (MIPP) at Fermilab which has to date acquired 18 million events of particle interactions using (5 GeV/c-120 GeV/c) $\\pi^\\pm, K^\\pm$ and $p^\\pm$ beams on various targets. We describe plans to upgrade the data acquisition speed of MIPP to make it run 100 times faster which will enable us to obtain particle production data of unprecdented quality and statistics on a wide variety of nuclear targets including nitrogen which is of importance to cosmic ray physics."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0612007","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-ex/0612007/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":"2026-07-04T15:25:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iRdNPFvHA9f10Vpj5jHZfe4DxFHjyr6Ki6fvuFQgcjdXMhE2idexlzakK7MHtFCKPap7E38Lx7ZT+8Ejeh5FDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T02:47:48.732111Z"},"content_sha256":"e246e9c8d101ade9b5f242a93b237b2144d2533a5b755379af6d8f9325075a6c","schema_version":"1.0","event_id":"sha256:e246e9c8d101ade9b5f242a93b237b2144d2533a5b755379af6d8f9325075a6c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B53ZBDXWMT2OQAKJE7QEHA6FL6/bundle.json","state_url":"https://pith.science/pith/B53ZBDXWMT2OQAKJE7QEHA6FL6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B53ZBDXWMT2OQAKJE7QEHA6FL6/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":"2026-08-18T02:47:48Z","links":{"resolver":"https://pith.science/pith/B53ZBDXWMT2OQAKJE7QEHA6FL6","bundle":"https://pith.science/pith/B53ZBDXWMT2OQAKJE7QEHA6FL6/bundle.json","state":"https://pith.science/pith/B53ZBDXWMT2OQAKJE7QEHA6FL6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B53ZBDXWMT2OQAKJE7QEHA6FL6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:B53ZBDXWMT2OQAKJE7QEHA6FL6","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":"4f3e480f6e615d1d09d6939a79f5e889e29531f85617a43f185a4ca44aa36d2f","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"2006-12-05T00:36:50Z","title_canon_sha256":"146505016172306734506eb2c38352f0ea2bec1af9a9c6266d1361e51e966d62"},"schema_version":"1.0","source":{"id":"hep-ex/0612007","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/0612007","created_at":"2026-07-04T15:25:08Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/0612007v1","created_at":"2026-07-04T15:25:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/0612007","created_at":"2026-07-04T15:25:08Z"},{"alias_kind":"pith_short_12","alias_value":"B53ZBDXWMT2O","created_at":"2026-07-04T15:25:08Z"},{"alias_kind":"pith_short_16","alias_value":"B53ZBDXWMT2OQAKJ","created_at":"2026-07-04T15:25:08Z"},{"alias_kind":"pith_short_8","alias_value":"B53ZBDXW","created_at":"2026-07-04T15:25:08Z"}],"graph_snapshots":[{"event_id":"sha256:e246e9c8d101ade9b5f242a93b237b2144d2533a5b755379af6d8f9325075a6c","target":"graph","created_at":"2026-07-04T15:25:08Z","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-ex/0612007/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We describe the status of the Main Injector particle production Experiment (MIPP) at Fermilab which has to date acquired 18 million events of particle interactions using (5 GeV/c-120 GeV/c) $\\pi^\\pm, K^\\pm$ and $p^\\pm$ beams on various targets. We describe plans to upgrade the data acquisition speed of MIPP to make it run 100 times faster which will enable us to obtain particle production data of unprecdented quality and statistics on a wide variety of nuclear targets including nitrogen which is of importance to cosmic ray physics.","authors_text":"Rajendran Raja","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ex","submitted_at":"2006-12-05T00:36:50Z","title":"The Main Injector Particle Physics Experiment (MIPP FNAL E-907) at Fermilab - status and plans"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0612007","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:b9e1113a155750874f12a0617cebe44e61d20b8d0b53fe8aec4b9bff3f31394e","target":"record","created_at":"2026-07-04T15:25:08Z","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":"4f3e480f6e615d1d09d6939a79f5e889e29531f85617a43f185a4ca44aa36d2f","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"2006-12-05T00:36:50Z","title_canon_sha256":"146505016172306734506eb2c38352f0ea2bec1af9a9c6266d1361e51e966d62"},"schema_version":"1.0","source":{"id":"hep-ex/0612007","kind":"arxiv","version":1}},"canonical_sha256":"0f77908ef664f4e8014927e04383c55f85c420e36b72e816006660901bec28a2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0f77908ef664f4e8014927e04383c55f85c420e36b72e816006660901bec28a2","first_computed_at":"2026-07-04T15:25:08.640559Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:25:08.640559Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ez9BFaMcRuuQg+bk36+amA4g7n2K4usfn+L6J9+3pw1YUxbmW4ZYj9k4ASoGSNC+OxCM3MRtsYlvJDyBtiWmDg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:25:08.640963Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ex/0612007","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b9e1113a155750874f12a0617cebe44e61d20b8d0b53fe8aec4b9bff3f31394e","sha256:e246e9c8d101ade9b5f242a93b237b2144d2533a5b755379af6d8f9325075a6c"],"state_sha256":"48a98de5d4967780d99cf3668e6e3bd44c42228daac3ee45b89be75c8f0a3dc4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k7l16tb0O5enjsiE+6+be1Xc2AVdkUrXnZMZFm7FDTS68yXwfmaK1q/GjEr1Ya2Iyt/Pmw8fLZHnvLNANvTACg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T02:47:48.737710Z","bundle_sha256":"89e87e405237a4842b74ff8f56ce0459da5d0fe9d9c7add668644fd6ce87f743"}}