{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:IZ6NEJPH2ZF2QZ7ZOOGSUPXBUY","short_pith_number":"pith:IZ6NEJPH","canonical_record":{"source":{"id":"1611.05232","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-11-16T11:38:32Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"59d9430c5e1faa55b1232973ef7b25e57a8f82f33a0a2ddecf87c99eefc4a18e","abstract_canon_sha256":"6272eaf06300d43a637f842cb4614b802f2e5b5c8828200745b98ef313051eea"},"schema_version":"1.0"},"canonical_sha256":"467cd225e7d64ba867f9738d2a3ee1a63cdc783d413c8ea4fd4c0920fe6fac2d","source":{"kind":"arxiv","id":"1611.05232","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.05232","created_at":"2026-05-18T00:58:27Z"},{"alias_kind":"arxiv_version","alias_value":"1611.05232v1","created_at":"2026-05-18T00:58:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.05232","created_at":"2026-05-18T00:58:27Z"},{"alias_kind":"pith_short_12","alias_value":"IZ6NEJPH2ZF2","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"IZ6NEJPH2ZF2QZ7Z","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"IZ6NEJPH","created_at":"2026-05-18T12:30:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:IZ6NEJPH2ZF2QZ7ZOOGSUPXBUY","target":"record","payload":{"canonical_record":{"source":{"id":"1611.05232","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-11-16T11:38:32Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"59d9430c5e1faa55b1232973ef7b25e57a8f82f33a0a2ddecf87c99eefc4a18e","abstract_canon_sha256":"6272eaf06300d43a637f842cb4614b802f2e5b5c8828200745b98ef313051eea"},"schema_version":"1.0"},"canonical_sha256":"467cd225e7d64ba867f9738d2a3ee1a63cdc783d413c8ea4fd4c0920fe6fac2d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:58:27.585047Z","signature_b64":"5Q8ca/QS84tSHaGUrmiQtR0RjQPFdRorHSSahtM17Sf96iadRm/Cv5ejrstTOKwTPlPr++PrfrDEqxERqyeQAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"467cd225e7d64ba867f9738d2a3ee1a63cdc783d413c8ea4fd4c0920fe6fac2d","last_reissued_at":"2026-05-18T00:58:27.584407Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:58:27.584407Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1611.05232","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":"2026-05-18T00:58:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EozRb0y8hQVhhqT+biPr/D73Ncsbu12Ys3BNwXRrO8uzdhSEOXx9CH0M77DWFf6jfrWqXACkwIjqcRdNjbxoAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T21:29:10.298096Z"},"content_sha256":"91d5877d77a5a3ff9742489ef049e08d05fbd1ceee10caa5d6c1b9b65b357f41","schema_version":"1.0","event_id":"sha256:91d5877d77a5a3ff9742489ef049e08d05fbd1ceee10caa5d6c1b9b65b357f41"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:IZ6NEJPH2ZF2QZ7ZOOGSUPXBUY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Commissioning of CMS Forward Hadron Calorimeters with Upgraded Multi-anode PMTs and {\\mu}TCA Readout","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"physics.ins-det","authors_text":"Burak Bilki, Emrah Tiras, Yasar Onel","submitted_at":"2016-11-16T11:38:32Z","abstract_excerpt":"The high flux of charged particles interacting with the CMS Forward Hadron Calorimeter PMT windows introduced a significant background for the trigger and offline data analysis. During Long Shutdown 1, all of the original PMTs were replaced with multi-anode, thin window photomultiplier tubes. At the same time, the back-end electronic readout system was upgraded to {\\mu}TCA readout. The experience with commissioning and calibration of the Forward Hadron Calorimeter is described as well as the {\\mu}TCA system. The upgrade was successful and provided quality data for Run 2 data-analysis at 13 TeV"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.05232","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":"2026-05-18T00:58:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PvQHwt4El6AJYUY+ddkPerTjf0nVLUEfVg+DzfiQ1SrIW8ysdsXgOj6T2h5rmmiHmnKD8+Qr3j17XRbXfBnBDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T21:29:10.298705Z"},"content_sha256":"1c9a52ba04ef4bfaec67bec757aa3f6d40cd0d03a57c7e4bb16a2c046d2c19e8","schema_version":"1.0","event_id":"sha256:1c9a52ba04ef4bfaec67bec757aa3f6d40cd0d03a57c7e4bb16a2c046d2c19e8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IZ6NEJPH2ZF2QZ7ZOOGSUPXBUY/bundle.json","state_url":"https://pith.science/pith/IZ6NEJPH2ZF2QZ7ZOOGSUPXBUY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IZ6NEJPH2ZF2QZ7ZOOGSUPXBUY/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":"2026-06-05T21:29:10Z","links":{"resolver":"https://pith.science/pith/IZ6NEJPH2ZF2QZ7ZOOGSUPXBUY","bundle":"https://pith.science/pith/IZ6NEJPH2ZF2QZ7ZOOGSUPXBUY/bundle.json","state":"https://pith.science/pith/IZ6NEJPH2ZF2QZ7ZOOGSUPXBUY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IZ6NEJPH2ZF2QZ7ZOOGSUPXBUY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:IZ6NEJPH2ZF2QZ7ZOOGSUPXBUY","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":"6272eaf06300d43a637f842cb4614b802f2e5b5c8828200745b98ef313051eea","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-11-16T11:38:32Z","title_canon_sha256":"59d9430c5e1faa55b1232973ef7b25e57a8f82f33a0a2ddecf87c99eefc4a18e"},"schema_version":"1.0","source":{"id":"1611.05232","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.05232","created_at":"2026-05-18T00:58:27Z"},{"alias_kind":"arxiv_version","alias_value":"1611.05232v1","created_at":"2026-05-18T00:58:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.05232","created_at":"2026-05-18T00:58:27Z"},{"alias_kind":"pith_short_12","alias_value":"IZ6NEJPH2ZF2","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"IZ6NEJPH2ZF2QZ7Z","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"IZ6NEJPH","created_at":"2026-05-18T12:30:22Z"}],"graph_snapshots":[{"event_id":"sha256:1c9a52ba04ef4bfaec67bec757aa3f6d40cd0d03a57c7e4bb16a2c046d2c19e8","target":"graph","created_at":"2026-05-18T00:58:27Z","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":"The high flux of charged particles interacting with the CMS Forward Hadron Calorimeter PMT windows introduced a significant background for the trigger and offline data analysis. During Long Shutdown 1, all of the original PMTs were replaced with multi-anode, thin window photomultiplier tubes. At the same time, the back-end electronic readout system was upgraded to {\\mu}TCA readout. The experience with commissioning and calibration of the Forward Hadron Calorimeter is described as well as the {\\mu}TCA system. The upgrade was successful and provided quality data for Run 2 data-analysis at 13 TeV","authors_text":"Burak Bilki, Emrah Tiras, Yasar Onel","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-11-16T11:38:32Z","title":"Commissioning of CMS Forward Hadron Calorimeters with Upgraded Multi-anode PMTs and {\\mu}TCA Readout"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.05232","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":"sha256:91d5877d77a5a3ff9742489ef049e08d05fbd1ceee10caa5d6c1b9b65b357f41","target":"record","created_at":"2026-05-18T00:58:27Z","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":"6272eaf06300d43a637f842cb4614b802f2e5b5c8828200745b98ef313051eea","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-11-16T11:38:32Z","title_canon_sha256":"59d9430c5e1faa55b1232973ef7b25e57a8f82f33a0a2ddecf87c99eefc4a18e"},"schema_version":"1.0","source":{"id":"1611.05232","kind":"arxiv","version":1}},"canonical_sha256":"467cd225e7d64ba867f9738d2a3ee1a63cdc783d413c8ea4fd4c0920fe6fac2d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"467cd225e7d64ba867f9738d2a3ee1a63cdc783d413c8ea4fd4c0920fe6fac2d","first_computed_at":"2026-05-18T00:58:27.584407Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:58:27.584407Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5Q8ca/QS84tSHaGUrmiQtR0RjQPFdRorHSSahtM17Sf96iadRm/Cv5ejrstTOKwTPlPr++PrfrDEqxERqyeQAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:58:27.585047Z","signed_message":"canonical_sha256_bytes"},"source_id":"1611.05232","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:91d5877d77a5a3ff9742489ef049e08d05fbd1ceee10caa5d6c1b9b65b357f41","sha256:1c9a52ba04ef4bfaec67bec757aa3f6d40cd0d03a57c7e4bb16a2c046d2c19e8"],"state_sha256":"82f3d2e6d0040ef92089707553cda386e2bd6c3c36cee9d2e428708283c5d1b3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9KMIUugtblceJtRxMvgOetgmo3TCtyMvjgRL8TLV5e8O+l/ODspU8uIQ2sgbv9h87G7NwluhTbHdr2EsPC7nBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T21:29:10.301475Z","bundle_sha256":"8581d6fbed0755d593afbfde84329b20eee9edc21a7ca26d3160e63d1c59d33e"}}