{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:JJSBVFMBZI67CJERD2AS5TRS4U","short_pith_number":"pith:JJSBVFMB","canonical_record":{"source":{"id":"1107.5512","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2011-07-27T15:50:06Z","cross_cats_sorted":[],"title_canon_sha256":"94545a25e155aa7c67a0c211dfdce67a3323812924bfdc1d50c457e273c8b382","abstract_canon_sha256":"2d1e07218e12c1f48f4e3b201823bfcf462d89dddc1f72046ffdedea6165ee3e"},"schema_version":"1.0"},"canonical_sha256":"4a641a9581ca3df124911e812ece32e5154e79ca854e5a69dfeb1eefd662f59b","source":{"kind":"arxiv","id":"1107.5512","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.5512","created_at":"2026-05-18T04:16:43Z"},{"alias_kind":"arxiv_version","alias_value":"1107.5512v1","created_at":"2026-05-18T04:16:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.5512","created_at":"2026-05-18T04:16:43Z"},{"alias_kind":"pith_short_12","alias_value":"JJSBVFMBZI67","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"JJSBVFMBZI67CJER","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"JJSBVFMB","created_at":"2026-05-18T12:26:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:JJSBVFMBZI67CJERD2AS5TRS4U","target":"record","payload":{"canonical_record":{"source":{"id":"1107.5512","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2011-07-27T15:50:06Z","cross_cats_sorted":[],"title_canon_sha256":"94545a25e155aa7c67a0c211dfdce67a3323812924bfdc1d50c457e273c8b382","abstract_canon_sha256":"2d1e07218e12c1f48f4e3b201823bfcf462d89dddc1f72046ffdedea6165ee3e"},"schema_version":"1.0"},"canonical_sha256":"4a641a9581ca3df124911e812ece32e5154e79ca854e5a69dfeb1eefd662f59b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:16:43.001766Z","signature_b64":"mmIXVUl4SXvTX/pSevFo8GTDcYuqJeRZGJPxPsGlLSyOo1WRrPT2IOJ2s7qZnZ74ID945M9mq1LIKH7bWpdaBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4a641a9581ca3df124911e812ece32e5154e79ca854e5a69dfeb1eefd662f59b","last_reissued_at":"2026-05-18T04:16:43.001274Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:16:43.001274Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1107.5512","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":"2026-05-18T04:16:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0DLJIRnbrkitWVG3+NPJQz+L6HoZQsg6iKTVjFaVsgH2qkzDFAcUa7JrIqfyn3mpJmQk5WUlB3SprugLrA8dDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T03:45:31.711243Z"},"content_sha256":"2ffff3ab42ebe10e2a59c1e6c223bf48924746b1030a6c6098dace884bfbe34a","schema_version":"1.0","event_id":"sha256:2ffff3ab42ebe10e2a59c1e6c223bf48924746b1030a6c6098dace884bfbe34a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:JJSBVFMBZI67CJERD2AS5TRS4U","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An improved design of spark-protected microstrip gas counters (R-MSGC)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"F. Pietropaolo, P.Picchi, R. Oliveira, V. Peskov","submitted_at":"2011-07-27T15:50:06Z","abstract_excerpt":"We have developed microstrip gas counters manufactured on standard printed circuit board and having the following features: resistive cathode strips, thin (10 micron) metallic anode strips and electrodes protected against surface discharges by a Coverlay layer at their edges. These features allow the detector to operate at gas gains as high as can be achieve with the best microstrip gas counters manufactured on glass substrates. We believe that after further developments this type of detectors can compete in some applications with other micropattern detectors, for example MICROMEGAS."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.5512","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":"2026-05-18T04:16:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p0AR5Bed+HN2nIBYwHR1a7VogRYyjjneiZ0n5pWbyljpKgOj9UCXq9TOOKq+nOZNSEz72m+/pT2c74aJ6dP+Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T03:45:31.711604Z"},"content_sha256":"5ff29aaa735db1992742d48a06f1387be24d19c3191e564d4ba110dbc253a59f","schema_version":"1.0","event_id":"sha256:5ff29aaa735db1992742d48a06f1387be24d19c3191e564d4ba110dbc253a59f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JJSBVFMBZI67CJERD2AS5TRS4U/bundle.json","state_url":"https://pith.science/pith/JJSBVFMBZI67CJERD2AS5TRS4U/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JJSBVFMBZI67CJERD2AS5TRS4U/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":"2026-06-01T03:45:31Z","links":{"resolver":"https://pith.science/pith/JJSBVFMBZI67CJERD2AS5TRS4U","bundle":"https://pith.science/pith/JJSBVFMBZI67CJERD2AS5TRS4U/bundle.json","state":"https://pith.science/pith/JJSBVFMBZI67CJERD2AS5TRS4U/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JJSBVFMBZI67CJERD2AS5TRS4U/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:JJSBVFMBZI67CJERD2AS5TRS4U","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":"2d1e07218e12c1f48f4e3b201823bfcf462d89dddc1f72046ffdedea6165ee3e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2011-07-27T15:50:06Z","title_canon_sha256":"94545a25e155aa7c67a0c211dfdce67a3323812924bfdc1d50c457e273c8b382"},"schema_version":"1.0","source":{"id":"1107.5512","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.5512","created_at":"2026-05-18T04:16:43Z"},{"alias_kind":"arxiv_version","alias_value":"1107.5512v1","created_at":"2026-05-18T04:16:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.5512","created_at":"2026-05-18T04:16:43Z"},{"alias_kind":"pith_short_12","alias_value":"JJSBVFMBZI67","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"JJSBVFMBZI67CJER","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"JJSBVFMB","created_at":"2026-05-18T12:26:32Z"}],"graph_snapshots":[{"event_id":"sha256:5ff29aaa735db1992742d48a06f1387be24d19c3191e564d4ba110dbc253a59f","target":"graph","created_at":"2026-05-18T04:16:43Z","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":"We have developed microstrip gas counters manufactured on standard printed circuit board and having the following features: resistive cathode strips, thin (10 micron) metallic anode strips and electrodes protected against surface discharges by a Coverlay layer at their edges. These features allow the detector to operate at gas gains as high as can be achieve with the best microstrip gas counters manufactured on glass substrates. We believe that after further developments this type of detectors can compete in some applications with other micropattern detectors, for example MICROMEGAS.","authors_text":"F. Pietropaolo, P.Picchi, R. Oliveira, V. Peskov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2011-07-27T15:50:06Z","title":"An improved design of spark-protected microstrip gas counters (R-MSGC)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.5512","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":"sha256:2ffff3ab42ebe10e2a59c1e6c223bf48924746b1030a6c6098dace884bfbe34a","target":"record","created_at":"2026-05-18T04:16:43Z","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":"2d1e07218e12c1f48f4e3b201823bfcf462d89dddc1f72046ffdedea6165ee3e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2011-07-27T15:50:06Z","title_canon_sha256":"94545a25e155aa7c67a0c211dfdce67a3323812924bfdc1d50c457e273c8b382"},"schema_version":"1.0","source":{"id":"1107.5512","kind":"arxiv","version":1}},"canonical_sha256":"4a641a9581ca3df124911e812ece32e5154e79ca854e5a69dfeb1eefd662f59b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4a641a9581ca3df124911e812ece32e5154e79ca854e5a69dfeb1eefd662f59b","first_computed_at":"2026-05-18T04:16:43.001274Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:16:43.001274Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mmIXVUl4SXvTX/pSevFo8GTDcYuqJeRZGJPxPsGlLSyOo1WRrPT2IOJ2s7qZnZ74ID945M9mq1LIKH7bWpdaBg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:16:43.001766Z","signed_message":"canonical_sha256_bytes"},"source_id":"1107.5512","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2ffff3ab42ebe10e2a59c1e6c223bf48924746b1030a6c6098dace884bfbe34a","sha256:5ff29aaa735db1992742d48a06f1387be24d19c3191e564d4ba110dbc253a59f"],"state_sha256":"b5540aa6727a1ed8e4ce10253361d68e003898a95196dbab0d02d20cfbdafe91"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AbTzb/BGZQtvWU+kNhHIrjwrLaUIGe4aPLpWkpecCj6jvsQh9uCOgf39yNVJwW06JofAcuFaxCOhSY4jf83AAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T03:45:31.713564Z","bundle_sha256":"f3f6c9dc0a1c3a06d42d123c5385e827b196e3fe9b998ab4d87db17d3eeaeff6"}}