{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:6VL6MYADWLY5YJLKWSMI5W6ERB","short_pith_number":"pith:6VL6MYAD","canonical_record":{"source":{"id":"1708.00081","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2017-07-31T22:00:26Z","cross_cats_sorted":["hep-ph","nucl-ex"],"title_canon_sha256":"5472bb0e905075b45887f42822860d80743a54036ddfc0980f2731f47e8c4a3e","abstract_canon_sha256":"bd80bec031ab154369354a4b3023b6cbcb4f44eaedfef99f8c7ac90406f8cc6e"},"schema_version":"1.0"},"canonical_sha256":"f557e66003b2f1dc256ab4988edbc488544887842794fa0ad725b28cda6035a6","source":{"kind":"arxiv","id":"1708.00081","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.00081","created_at":"2026-05-18T00:24:04Z"},{"alias_kind":"arxiv_version","alias_value":"1708.00081v2","created_at":"2026-05-18T00:24:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.00081","created_at":"2026-05-18T00:24:04Z"},{"alias_kind":"pith_short_12","alias_value":"6VL6MYADWLY5","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"6VL6MYADWLY5YJLK","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"6VL6MYAD","created_at":"2026-05-18T12:31:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:6VL6MYADWLY5YJLKWSMI5W6ERB","target":"record","payload":{"canonical_record":{"source":{"id":"1708.00081","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2017-07-31T22:00:26Z","cross_cats_sorted":["hep-ph","nucl-ex"],"title_canon_sha256":"5472bb0e905075b45887f42822860d80743a54036ddfc0980f2731f47e8c4a3e","abstract_canon_sha256":"bd80bec031ab154369354a4b3023b6cbcb4f44eaedfef99f8c7ac90406f8cc6e"},"schema_version":"1.0"},"canonical_sha256":"f557e66003b2f1dc256ab4988edbc488544887842794fa0ad725b28cda6035a6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:24:04.258297Z","signature_b64":"E5xwPdqoAi9BwTLiPVq27S5SoqKXPzrK7RWOx5gQdO801/F/bnGkABMlcMxhBSP//0YImQ2fIdWBMelGrWZfAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f557e66003b2f1dc256ab4988edbc488544887842794fa0ad725b28cda6035a6","last_reissued_at":"2026-05-18T00:24:04.257669Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:24:04.257669Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.00081","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":"2026-05-18T00:24:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qXL7OgXQhKBxZlNAdP6xHAoXoNmTdKZf1ce9mv7VqYSWgUVfDwPPA6FOER9tJGR33F008LV5vZYh8OZnAC/tAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T11:28:49.829307Z"},"content_sha256":"d430c8d4dd4eeea16d919bdf4aad8224c47af291bd27ada8e79ac3e6a66967df","schema_version":"1.0","event_id":"sha256:d430c8d4dd4eeea16d919bdf4aad8224c47af291bd27ada8e79ac3e6a66967df"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:6VL6MYADWLY5YJLKWSMI5W6ERB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Relating centrality to impact parameter in nucleus-nucleus collisions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","nucl-ex"],"primary_cat":"nucl-th","authors_text":"Giuliano Giacalone, Jean-Yves Ollitrault, Pierre-Amaury Monard, Sruthy Jyothi Das","submitted_at":"2017-07-31T22:00:26Z","abstract_excerpt":"In ultrarelativistic heavy-ion experiments, one estimates the centrality of a collision by using a single observable, say $n$, typically given by the transverse energy or the number of tracks observed in a dedicated detector. The correlation between $n$ and the impact parameter, $b$, of the collision is then inferred by fitting a specific model of the collision dynamics, such as the Glauber model, to experimental data. The goal of this paper is to assess precisely which information about $b$ can be extracted from data without any specific model of the collision. Under the sole assumption that "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.00081","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":"2026-05-18T00:24:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OEcJmTNcGVsgyGRDLB407iEU2zfIOKExtGrFD+pgh9p4ODo0Bp7HteUBwxQ88PvPT9R5IEn8fKSze1mqeDG6DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T11:28:49.830002Z"},"content_sha256":"9ca3c0153b05dda810f6ca63cc33d558a6c514d2eac8699fb0f5935eb5b7b1d4","schema_version":"1.0","event_id":"sha256:9ca3c0153b05dda810f6ca63cc33d558a6c514d2eac8699fb0f5935eb5b7b1d4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6VL6MYADWLY5YJLKWSMI5W6ERB/bundle.json","state_url":"https://pith.science/pith/6VL6MYADWLY5YJLKWSMI5W6ERB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6VL6MYADWLY5YJLKWSMI5W6ERB/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":"2026-05-27T11:28:49Z","links":{"resolver":"https://pith.science/pith/6VL6MYADWLY5YJLKWSMI5W6ERB","bundle":"https://pith.science/pith/6VL6MYADWLY5YJLKWSMI5W6ERB/bundle.json","state":"https://pith.science/pith/6VL6MYADWLY5YJLKWSMI5W6ERB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6VL6MYADWLY5YJLKWSMI5W6ERB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:6VL6MYADWLY5YJLKWSMI5W6ERB","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":"bd80bec031ab154369354a4b3023b6cbcb4f44eaedfef99f8c7ac90406f8cc6e","cross_cats_sorted":["hep-ph","nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2017-07-31T22:00:26Z","title_canon_sha256":"5472bb0e905075b45887f42822860d80743a54036ddfc0980f2731f47e8c4a3e"},"schema_version":"1.0","source":{"id":"1708.00081","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.00081","created_at":"2026-05-18T00:24:04Z"},{"alias_kind":"arxiv_version","alias_value":"1708.00081v2","created_at":"2026-05-18T00:24:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.00081","created_at":"2026-05-18T00:24:04Z"},{"alias_kind":"pith_short_12","alias_value":"6VL6MYADWLY5","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"6VL6MYADWLY5YJLK","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"6VL6MYAD","created_at":"2026-05-18T12:31:03Z"}],"graph_snapshots":[{"event_id":"sha256:9ca3c0153b05dda810f6ca63cc33d558a6c514d2eac8699fb0f5935eb5b7b1d4","target":"graph","created_at":"2026-05-18T00:24:04Z","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":"In ultrarelativistic heavy-ion experiments, one estimates the centrality of a collision by using a single observable, say $n$, typically given by the transverse energy or the number of tracks observed in a dedicated detector. The correlation between $n$ and the impact parameter, $b$, of the collision is then inferred by fitting a specific model of the collision dynamics, such as the Glauber model, to experimental data. The goal of this paper is to assess precisely which information about $b$ can be extracted from data without any specific model of the collision. Under the sole assumption that ","authors_text":"Giuliano Giacalone, Jean-Yves Ollitrault, Pierre-Amaury Monard, Sruthy Jyothi Das","cross_cats":["hep-ph","nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2017-07-31T22:00:26Z","title":"Relating centrality to impact parameter in nucleus-nucleus collisions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.00081","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:d430c8d4dd4eeea16d919bdf4aad8224c47af291bd27ada8e79ac3e6a66967df","target":"record","created_at":"2026-05-18T00:24:04Z","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":"bd80bec031ab154369354a4b3023b6cbcb4f44eaedfef99f8c7ac90406f8cc6e","cross_cats_sorted":["hep-ph","nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2017-07-31T22:00:26Z","title_canon_sha256":"5472bb0e905075b45887f42822860d80743a54036ddfc0980f2731f47e8c4a3e"},"schema_version":"1.0","source":{"id":"1708.00081","kind":"arxiv","version":2}},"canonical_sha256":"f557e66003b2f1dc256ab4988edbc488544887842794fa0ad725b28cda6035a6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f557e66003b2f1dc256ab4988edbc488544887842794fa0ad725b28cda6035a6","first_computed_at":"2026-05-18T00:24:04.257669Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:04.257669Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"E5xwPdqoAi9BwTLiPVq27S5SoqKXPzrK7RWOx5gQdO801/F/bnGkABMlcMxhBSP//0YImQ2fIdWBMelGrWZfAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:04.258297Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.00081","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d430c8d4dd4eeea16d919bdf4aad8224c47af291bd27ada8e79ac3e6a66967df","sha256:9ca3c0153b05dda810f6ca63cc33d558a6c514d2eac8699fb0f5935eb5b7b1d4"],"state_sha256":"149191537eb3f1b150c2526841b35beca15cdc2a10107a9dfc369621eb42277a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3MPJpLz2bPicioBXkhj45uzl1nZaOu9tOYDtLM5j4gBQ7GVCZf6zjEtOB7/ACmCL4ZmYQ223f3Jyu1JIQ2JHDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T11:28:49.833447Z","bundle_sha256":"8a0f810847ecf40ecd7448ec51698fb7d2bf23c57ae5f182bf24f5ac35423039"}}