{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:OAJBAR7LGCHRKU3KCZXNR3TQX4","short_pith_number":"pith:OAJBAR7L","canonical_record":{"source":{"id":"hep-ph/0003264","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2000-03-27T20:16:04Z","cross_cats_sorted":[],"title_canon_sha256":"18b935610bc8f2bea1ffe84bd1ebfbd0d87b403952a0cf9d8ca2bc77d9d94463","abstract_canon_sha256":"576132f9925cd96128c9568fa828758dd4c39c2b71a67bf65a97de1b91d62c8a"},"schema_version":"1.0"},"canonical_sha256":"70121047eb308f15536a166ed8ee70bf2201a28e061e90d08f49d65fc1b7931f","source":{"kind":"arxiv","id":"hep-ph/0003264","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0003264","created_at":"2026-07-04T16:20:05Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0003264v2","created_at":"2026-07-04T16:20:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0003264","created_at":"2026-07-04T16:20:05Z"},{"alias_kind":"pith_short_12","alias_value":"OAJBAR7LGCHR","created_at":"2026-07-04T16:20:05Z"},{"alias_kind":"pith_short_16","alias_value":"OAJBAR7LGCHRKU3K","created_at":"2026-07-04T16:20:05Z"},{"alias_kind":"pith_short_8","alias_value":"OAJBAR7L","created_at":"2026-07-04T16:20:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:OAJBAR7LGCHRKU3KCZXNR3TQX4","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0003264","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2000-03-27T20:16:04Z","cross_cats_sorted":[],"title_canon_sha256":"18b935610bc8f2bea1ffe84bd1ebfbd0d87b403952a0cf9d8ca2bc77d9d94463","abstract_canon_sha256":"576132f9925cd96128c9568fa828758dd4c39c2b71a67bf65a97de1b91d62c8a"},"schema_version":"1.0"},"canonical_sha256":"70121047eb308f15536a166ed8ee70bf2201a28e061e90d08f49d65fc1b7931f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:20:05.031429Z","signature_b64":"y+ytIxqH4qZn3RmmPadI5NfzwLH0wMJIzpLm+HUgbD62cDfKYwEOv4vCNr2xIxaRV7jnjxpqpszRrwxAOkJ4Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"70121047eb308f15536a166ed8ee70bf2201a28e061e90d08f49d65fc1b7931f","last_reissued_at":"2026-07-04T16:20:05.031017Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:20:05.031017Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0003264","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":"2026-07-04T16:20:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sf3zz4l0RiXjBlo80FbIXLC/qzHxv+A2LChNTZvB5eOWwxGq0i3pkJfTQinc0/0tYng2thxKI5Uf8RHGhvMBAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T07:23:52.961306Z"},"content_sha256":"ea7d8fe5288894d63e7c92a7d47d6c0f5ed895ca52425eef8619e426b6a1ca01","schema_version":"1.0","event_id":"sha256:ea7d8fe5288894d63e7c92a7d47d6c0f5ed895ca52425eef8619e426b6a1ca01"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:OAJBAR7LGCHRKU3KCZXNR3TQX4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Time Dependence of Chemical Freeze-out in Relativistic Heavy Ion Collisions","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"H. Caines (The Ohio State University), R. Bellwied (Wayne State University), T.J. Humanic (The Ohio State University)","submitted_at":"2000-03-27T20:16:04Z","abstract_excerpt":"We investigate chemical and thermal freeze-out time dependencies for strange particle production for CERN SPS heavy ion collisions in the framework of a dynamical hadronic transport code. We show that the Lambda yield changes considerably after hadronization in the case of Pb+Pb collisions, whereas for smaller system sizes (e.g. S+S) the direct particle production dominates over production from inelastic rescattering. Chemical freeze-out times for strange baryons in Pb+Pb are smaller than for non-strange baryons, but they are still sufficiently long for hadronic rescattering to contribute sign"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0003264","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/hep-ph/0003264/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":"2026-07-04T16:20:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"krXeJopOnqWjwQoEgePbSQEZMmwKrz+5m8SjwXH5icL53I8bpVyozfHjaKrWvetj2wDtylRUuPIi3dbqs8VfDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T07:23:52.961897Z"},"content_sha256":"d2f0180117cfce8bf153ec86590ea1c68dda1f9a89a543372bc9bd5f74390ad0","schema_version":"1.0","event_id":"sha256:d2f0180117cfce8bf153ec86590ea1c68dda1f9a89a543372bc9bd5f74390ad0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OAJBAR7LGCHRKU3KCZXNR3TQX4/bundle.json","state_url":"https://pith.science/pith/OAJBAR7LGCHRKU3KCZXNR3TQX4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OAJBAR7LGCHRKU3KCZXNR3TQX4/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":"2026-08-15T07:23:52Z","links":{"resolver":"https://pith.science/pith/OAJBAR7LGCHRKU3KCZXNR3TQX4","bundle":"https://pith.science/pith/OAJBAR7LGCHRKU3KCZXNR3TQX4/bundle.json","state":"https://pith.science/pith/OAJBAR7LGCHRKU3KCZXNR3TQX4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OAJBAR7LGCHRKU3KCZXNR3TQX4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:OAJBAR7LGCHRKU3KCZXNR3TQX4","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":"576132f9925cd96128c9568fa828758dd4c39c2b71a67bf65a97de1b91d62c8a","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2000-03-27T20:16:04Z","title_canon_sha256":"18b935610bc8f2bea1ffe84bd1ebfbd0d87b403952a0cf9d8ca2bc77d9d94463"},"schema_version":"1.0","source":{"id":"hep-ph/0003264","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0003264","created_at":"2026-07-04T16:20:05Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0003264v2","created_at":"2026-07-04T16:20:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0003264","created_at":"2026-07-04T16:20:05Z"},{"alias_kind":"pith_short_12","alias_value":"OAJBAR7LGCHR","created_at":"2026-07-04T16:20:05Z"},{"alias_kind":"pith_short_16","alias_value":"OAJBAR7LGCHRKU3K","created_at":"2026-07-04T16:20:05Z"},{"alias_kind":"pith_short_8","alias_value":"OAJBAR7L","created_at":"2026-07-04T16:20:05Z"}],"graph_snapshots":[{"event_id":"sha256:d2f0180117cfce8bf153ec86590ea1c68dda1f9a89a543372bc9bd5f74390ad0","target":"graph","created_at":"2026-07-04T16:20:05Z","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-ph/0003264/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate chemical and thermal freeze-out time dependencies for strange particle production for CERN SPS heavy ion collisions in the framework of a dynamical hadronic transport code. We show that the Lambda yield changes considerably after hadronization in the case of Pb+Pb collisions, whereas for smaller system sizes (e.g. S+S) the direct particle production dominates over production from inelastic rescattering. Chemical freeze-out times for strange baryons in Pb+Pb are smaller than for non-strange baryons, but they are still sufficiently long for hadronic rescattering to contribute sign","authors_text":"H. Caines (The Ohio State University), R. Bellwied (Wayne State University), T.J. Humanic (The Ohio State University)","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2000-03-27T20:16:04Z","title":"Time Dependence of Chemical Freeze-out in Relativistic Heavy Ion Collisions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0003264","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:ea7d8fe5288894d63e7c92a7d47d6c0f5ed895ca52425eef8619e426b6a1ca01","target":"record","created_at":"2026-07-04T16:20:05Z","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":"576132f9925cd96128c9568fa828758dd4c39c2b71a67bf65a97de1b91d62c8a","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2000-03-27T20:16:04Z","title_canon_sha256":"18b935610bc8f2bea1ffe84bd1ebfbd0d87b403952a0cf9d8ca2bc77d9d94463"},"schema_version":"1.0","source":{"id":"hep-ph/0003264","kind":"arxiv","version":2}},"canonical_sha256":"70121047eb308f15536a166ed8ee70bf2201a28e061e90d08f49d65fc1b7931f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"70121047eb308f15536a166ed8ee70bf2201a28e061e90d08f49d65fc1b7931f","first_computed_at":"2026-07-04T16:20:05.031017Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:20:05.031017Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"y+ytIxqH4qZn3RmmPadI5NfzwLH0wMJIzpLm+HUgbD62cDfKYwEOv4vCNr2xIxaRV7jnjxpqpszRrwxAOkJ4Bw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:20:05.031429Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0003264","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ea7d8fe5288894d63e7c92a7d47d6c0f5ed895ca52425eef8619e426b6a1ca01","sha256:d2f0180117cfce8bf153ec86590ea1c68dda1f9a89a543372bc9bd5f74390ad0"],"state_sha256":"3e42759ef8346ada27930401e1f09a8410ea44184434ef2ba2465b2b106796ce"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cbo04hcyuVUn5C/FpRBc+k7so74HW7kgfcIzE3QBLOUqS6JnuHOg2/ZyTUEOnQG0e/bzwi9rC2Zy/jD4ANi/Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T07:23:52.967466Z","bundle_sha256":"13d8cab789e54fdecadd4ca2dd7b88b95217733d0da999c90c95dce27b675982"}}