{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:4BBDBF54ELCXTDNFVJI3CKVIWS","short_pith_number":"pith:4BBDBF54","canonical_record":{"source":{"id":"1705.09503","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2017-05-26T09:47:48Z","cross_cats_sorted":[],"title_canon_sha256":"7a19ab8f92645e91f1162e3b6bcf72cb09d9bca7e5a0bdcab40e74692c878647","abstract_canon_sha256":"eebee6c825f4e147a4f53550ea5fc21e4c90c02a613f1a86175894b06f14a5a3"},"schema_version":"1.0"},"canonical_sha256":"e0423097bc22c5798da5aa51b12aa8b4ab61d07b7a940cee3efa2b21f5e8d1c5","source":{"kind":"arxiv","id":"1705.09503","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.09503","created_at":"2026-05-18T00:43:38Z"},{"alias_kind":"arxiv_version","alias_value":"1705.09503v1","created_at":"2026-05-18T00:43:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.09503","created_at":"2026-05-18T00:43:38Z"},{"alias_kind":"pith_short_12","alias_value":"4BBDBF54ELCX","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"4BBDBF54ELCXTDNF","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"4BBDBF54","created_at":"2026-05-18T12:30:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:4BBDBF54ELCXTDNFVJI3CKVIWS","target":"record","payload":{"canonical_record":{"source":{"id":"1705.09503","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2017-05-26T09:47:48Z","cross_cats_sorted":[],"title_canon_sha256":"7a19ab8f92645e91f1162e3b6bcf72cb09d9bca7e5a0bdcab40e74692c878647","abstract_canon_sha256":"eebee6c825f4e147a4f53550ea5fc21e4c90c02a613f1a86175894b06f14a5a3"},"schema_version":"1.0"},"canonical_sha256":"e0423097bc22c5798da5aa51b12aa8b4ab61d07b7a940cee3efa2b21f5e8d1c5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:43:38.526814Z","signature_b64":"uXnPNXXqG8/1Zqh0R3MrUO7WsTbRfl2kzZd2QS1LP3g8nWJbE7IuQWqO+ctcajmjoqXUXmxlRkdqP+SW3zdxAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e0423097bc22c5798da5aa51b12aa8b4ab61d07b7a940cee3efa2b21f5e8d1c5","last_reissued_at":"2026-05-18T00:43:38.526298Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:43:38.526298Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1705.09503","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":"2026-05-18T00:43:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WBdjAZV0JDoDiLWiEv/+c0lBBRwbrnZS5a/xXEBmEsadZLZDkJ7x4+OMT8OIMN0OjQTctcP/rc+92tFny7RjCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T07:00:39.246763Z"},"content_sha256":"f66edb515e412db211ff7cf0844119a2e5f9eaf4a2d0dc01f6a8239bdff8c089","schema_version":"1.0","event_id":"sha256:f66edb515e412db211ff7cf0844119a2e5f9eaf4a2d0dc01f6a8239bdff8c089"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:4BBDBF54ELCXTDNFVJI3CKVIWS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Commissioning and Operation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"J.M. Jowett, M. Lamont, M. Pojer","submitted_at":"2017-05-26T09:47:48Z","abstract_excerpt":"Chapter 16 in High-Luminosity Large Hadron Collider (HL-LHC) : Preliminary Design Report. The Large Hadron Collider (LHC) is one of the largest scientific instruments ever built. Since opening up a new energy frontier for exploration in 2010, it has gathered a global user community of about 7,000 scientists working in fundamental particle physics and the physics of hadronic matter at extreme temperature and density. To sustain and extend its discovery potential, the LHC will need a major upgrade in the 2020s. This will increase its luminosity (rate of collisions) by a factor of five beyond the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.09503","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":"2026-05-18T00:43:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9KvBiz8I6uLJeQSxFDmvS8ETp49poSZaCQz+9AeHxu/GBj7ga34SSyG8k7FvuEeAUxYCxitILhGAztgw+oi7Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T07:00:39.247116Z"},"content_sha256":"2fe3799af4a7dd8bf24617a162a18d8cd7a1a487fdcc49a4662bec28ccb1bd4e","schema_version":"1.0","event_id":"sha256:2fe3799af4a7dd8bf24617a162a18d8cd7a1a487fdcc49a4662bec28ccb1bd4e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4BBDBF54ELCXTDNFVJI3CKVIWS/bundle.json","state_url":"https://pith.science/pith/4BBDBF54ELCXTDNFVJI3CKVIWS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4BBDBF54ELCXTDNFVJI3CKVIWS/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":"2026-07-05T07:00:39Z","links":{"resolver":"https://pith.science/pith/4BBDBF54ELCXTDNFVJI3CKVIWS","bundle":"https://pith.science/pith/4BBDBF54ELCXTDNFVJI3CKVIWS/bundle.json","state":"https://pith.science/pith/4BBDBF54ELCXTDNFVJI3CKVIWS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4BBDBF54ELCXTDNFVJI3CKVIWS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:4BBDBF54ELCXTDNFVJI3CKVIWS","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":"eebee6c825f4e147a4f53550ea5fc21e4c90c02a613f1a86175894b06f14a5a3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2017-05-26T09:47:48Z","title_canon_sha256":"7a19ab8f92645e91f1162e3b6bcf72cb09d9bca7e5a0bdcab40e74692c878647"},"schema_version":"1.0","source":{"id":"1705.09503","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.09503","created_at":"2026-05-18T00:43:38Z"},{"alias_kind":"arxiv_version","alias_value":"1705.09503v1","created_at":"2026-05-18T00:43:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.09503","created_at":"2026-05-18T00:43:38Z"},{"alias_kind":"pith_short_12","alias_value":"4BBDBF54ELCX","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"4BBDBF54ELCXTDNF","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"4BBDBF54","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:2fe3799af4a7dd8bf24617a162a18d8cd7a1a487fdcc49a4662bec28ccb1bd4e","target":"graph","created_at":"2026-05-18T00:43:38Z","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":"Chapter 16 in High-Luminosity Large Hadron Collider (HL-LHC) : Preliminary Design Report. The Large Hadron Collider (LHC) is one of the largest scientific instruments ever built. Since opening up a new energy frontier for exploration in 2010, it has gathered a global user community of about 7,000 scientists working in fundamental particle physics and the physics of hadronic matter at extreme temperature and density. To sustain and extend its discovery potential, the LHC will need a major upgrade in the 2020s. This will increase its luminosity (rate of collisions) by a factor of five beyond the","authors_text":"J.M. Jowett, M. Lamont, M. Pojer","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2017-05-26T09:47:48Z","title":"Commissioning and Operation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.09503","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:f66edb515e412db211ff7cf0844119a2e5f9eaf4a2d0dc01f6a8239bdff8c089","target":"record","created_at":"2026-05-18T00:43:38Z","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":"eebee6c825f4e147a4f53550ea5fc21e4c90c02a613f1a86175894b06f14a5a3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2017-05-26T09:47:48Z","title_canon_sha256":"7a19ab8f92645e91f1162e3b6bcf72cb09d9bca7e5a0bdcab40e74692c878647"},"schema_version":"1.0","source":{"id":"1705.09503","kind":"arxiv","version":1}},"canonical_sha256":"e0423097bc22c5798da5aa51b12aa8b4ab61d07b7a940cee3efa2b21f5e8d1c5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e0423097bc22c5798da5aa51b12aa8b4ab61d07b7a940cee3efa2b21f5e8d1c5","first_computed_at":"2026-05-18T00:43:38.526298Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:43:38.526298Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uXnPNXXqG8/1Zqh0R3MrUO7WsTbRfl2kzZd2QS1LP3g8nWJbE7IuQWqO+ctcajmjoqXUXmxlRkdqP+SW3zdxAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:43:38.526814Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.09503","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f66edb515e412db211ff7cf0844119a2e5f9eaf4a2d0dc01f6a8239bdff8c089","sha256:2fe3799af4a7dd8bf24617a162a18d8cd7a1a487fdcc49a4662bec28ccb1bd4e"],"state_sha256":"d1f98376650e7bed871a11050d585d226aa7cd5804c1f0d4a256d42a25788528"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0rydmiR58YeuyOALb48GhCvjwC+y7BL7wCyoyXQnhHL5Wb4T49drHn5s5u8lQKDNLHkwhjG2vp9kHtLPfI0UBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T07:00:39.248976Z","bundle_sha256":"d41e68a56bea6bcd5e318e9c5b7df591106628ecf352739100f5b8f9bc2c7458"}}