{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:GPYTBTEEJPD7KQTOMHTGIVQFDD","short_pith_number":"pith:GPYTBTEE","canonical_record":{"source":{"id":"1202.3233","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2012-02-15T08:45:59Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"a301be4bed87421f889810c817b83acfd87c779a2c2cf68aa94e69097f1a67cb","abstract_canon_sha256":"c637ab0beec4c40ed82083d0cfce6549243d54cdbf56d9ff173676b636121627"},"schema_version":"1.0"},"canonical_sha256":"33f130cc844bc7f5426e61e664560518d33a02a097a648fb95fec47024bf477d","source":{"kind":"arxiv","id":"1202.3233","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.3233","created_at":"2026-05-18T01:58:28Z"},{"alias_kind":"arxiv_version","alias_value":"1202.3233v1","created_at":"2026-05-18T01:58:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.3233","created_at":"2026-05-18T01:58:28Z"},{"alias_kind":"pith_short_12","alias_value":"GPYTBTEEJPD7","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"GPYTBTEEJPD7KQTO","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"GPYTBTEE","created_at":"2026-05-18T12:27:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:GPYTBTEEJPD7KQTOMHTGIVQFDD","target":"record","payload":{"canonical_record":{"source":{"id":"1202.3233","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2012-02-15T08:45:59Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"a301be4bed87421f889810c817b83acfd87c779a2c2cf68aa94e69097f1a67cb","abstract_canon_sha256":"c637ab0beec4c40ed82083d0cfce6549243d54cdbf56d9ff173676b636121627"},"schema_version":"1.0"},"canonical_sha256":"33f130cc844bc7f5426e61e664560518d33a02a097a648fb95fec47024bf477d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:28.227938Z","signature_b64":"m/XhVybhWUC8/UoWya2EzyOl+VNrDS1GodKmu1OWYb9pYcrXHuiWADowL0kgBHL2RaxzzbXbN88qcPY+kd/DBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"33f130cc844bc7f5426e61e664560518d33a02a097a648fb95fec47024bf477d","last_reissued_at":"2026-05-18T01:58:28.227266Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:28.227266Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.3233","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":"2026-05-18T01:58:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XX/JaPimOO6vGcZ0ve4biy+wbeqJf7NpGSGpROfdfKr6Ev70QbpXdNZ7EHxLoce0DsiKRcd03NujbYCLRI8QAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T07:16:58.199838Z"},"content_sha256":"67bc975f29f291772079dcf09b53f0847e93c083c0804025d81b993bd14f9a36","schema_version":"1.0","event_id":"sha256:67bc975f29f291772079dcf09b53f0847e93c083c0804025d81b993bd14f9a36"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:GPYTBTEEJPD7KQTOMHTGIVQFDD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First Results from Pb+Pb collisions at the LHC","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"hep-ex","authors_text":"Berndt Muller, Bolek Wyslouch, Jurgen Schukraft","submitted_at":"2012-02-15T08:45:59Z","abstract_excerpt":"At the end of 2010, the CERN Large Hadron Collider started operation with heavy ion beams, colliding lead nuclei at a centre-of-mass energy of 2.76 TeV/nucleon and opening a new era in ultra-relativistic heavy ion physics at energies exceeding previous accelerators by more than an order of magnitude. This review summarizes the results from the first year of heavy ion physics at LHC obtained by the three experiments participating in the heavy ion program, ALICE, ATLAS, and CMS."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.3233","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":""},"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":"2026-05-18T01:58:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xdXcmx5IBfD9ZK6jZFwFUQjQby1PsS0lsItuWgw+t1DD7zr/dtplFhiBqQt3d/sP/aXUQdK1OyxFR08lXquwBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T07:16:58.200179Z"},"content_sha256":"e82162dcb92ae8406469410ad4fedf632409b4a696d315637524f03ba9961809","schema_version":"1.0","event_id":"sha256:e82162dcb92ae8406469410ad4fedf632409b4a696d315637524f03ba9961809"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GPYTBTEEJPD7KQTOMHTGIVQFDD/bundle.json","state_url":"https://pith.science/pith/GPYTBTEEJPD7KQTOMHTGIVQFDD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GPYTBTEEJPD7KQTOMHTGIVQFDD/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":"2026-05-30T07:16:58Z","links":{"resolver":"https://pith.science/pith/GPYTBTEEJPD7KQTOMHTGIVQFDD","bundle":"https://pith.science/pith/GPYTBTEEJPD7KQTOMHTGIVQFDD/bundle.json","state":"https://pith.science/pith/GPYTBTEEJPD7KQTOMHTGIVQFDD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GPYTBTEEJPD7KQTOMHTGIVQFDD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:GPYTBTEEJPD7KQTOMHTGIVQFDD","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":"c637ab0beec4c40ed82083d0cfce6549243d54cdbf56d9ff173676b636121627","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2012-02-15T08:45:59Z","title_canon_sha256":"a301be4bed87421f889810c817b83acfd87c779a2c2cf68aa94e69097f1a67cb"},"schema_version":"1.0","source":{"id":"1202.3233","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.3233","created_at":"2026-05-18T01:58:28Z"},{"alias_kind":"arxiv_version","alias_value":"1202.3233v1","created_at":"2026-05-18T01:58:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.3233","created_at":"2026-05-18T01:58:28Z"},{"alias_kind":"pith_short_12","alias_value":"GPYTBTEEJPD7","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"GPYTBTEEJPD7KQTO","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"GPYTBTEE","created_at":"2026-05-18T12:27:06Z"}],"graph_snapshots":[{"event_id":"sha256:e82162dcb92ae8406469410ad4fedf632409b4a696d315637524f03ba9961809","target":"graph","created_at":"2026-05-18T01:58:28Z","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":"At the end of 2010, the CERN Large Hadron Collider started operation with heavy ion beams, colliding lead nuclei at a centre-of-mass energy of 2.76 TeV/nucleon and opening a new era in ultra-relativistic heavy ion physics at energies exceeding previous accelerators by more than an order of magnitude. This review summarizes the results from the first year of heavy ion physics at LHC obtained by the three experiments participating in the heavy ion program, ALICE, ATLAS, and CMS.","authors_text":"Berndt Muller, Bolek Wyslouch, Jurgen Schukraft","cross_cats":["nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2012-02-15T08:45:59Z","title":"First Results from Pb+Pb collisions at the LHC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.3233","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":"sha256:67bc975f29f291772079dcf09b53f0847e93c083c0804025d81b993bd14f9a36","target":"record","created_at":"2026-05-18T01:58:28Z","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":"c637ab0beec4c40ed82083d0cfce6549243d54cdbf56d9ff173676b636121627","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2012-02-15T08:45:59Z","title_canon_sha256":"a301be4bed87421f889810c817b83acfd87c779a2c2cf68aa94e69097f1a67cb"},"schema_version":"1.0","source":{"id":"1202.3233","kind":"arxiv","version":1}},"canonical_sha256":"33f130cc844bc7f5426e61e664560518d33a02a097a648fb95fec47024bf477d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"33f130cc844bc7f5426e61e664560518d33a02a097a648fb95fec47024bf477d","first_computed_at":"2026-05-18T01:58:28.227266Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:28.227266Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m/XhVybhWUC8/UoWya2EzyOl+VNrDS1GodKmu1OWYb9pYcrXHuiWADowL0kgBHL2RaxzzbXbN88qcPY+kd/DBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:28.227938Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.3233","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:67bc975f29f291772079dcf09b53f0847e93c083c0804025d81b993bd14f9a36","sha256:e82162dcb92ae8406469410ad4fedf632409b4a696d315637524f03ba9961809"],"state_sha256":"9e37452b23062ec2e3752dc4dd6621405de16bf903ef3ba6ac34f66867becdc1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LIw0oF8qR0mFV/NriWY3VO7BqD5oDn85fFzFF3rYchuSNLQ1JWBNHeQkswsC7lCXxX3nbtejKCCHg+Dd4lidDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T07:16:58.202094Z","bundle_sha256":"f63990edad66a45e8063d0c964d8722654a2105d9d11067655f1750c0f746e3f"}}