{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:7Y5QVGOJ5HK5TMB62ZWGS75GW4","short_pith_number":"pith:7Y5QVGOJ","canonical_record":{"source":{"id":"1206.5894","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2012-06-26T06:47:58Z","cross_cats_sorted":[],"title_canon_sha256":"25e46c3f856f41ae6d49a67d4bdf1a1176495183f4d19807339799e02bd9532d","abstract_canon_sha256":"398685f6429a0278f259fb76f308297e58262421b8b13b22e4f08864a4482a24"},"schema_version":"1.0"},"canonical_sha256":"fe3b0a99c9e9d5d9b03ed66c697fa6b721fc12c18c33b6eeac4d32ab62607eba","source":{"kind":"arxiv","id":"1206.5894","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.5894","created_at":"2026-05-18T01:56:41Z"},{"alias_kind":"arxiv_version","alias_value":"1206.5894v1","created_at":"2026-05-18T01:56:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.5894","created_at":"2026-05-18T01:56:41Z"},{"alias_kind":"pith_short_12","alias_value":"7Y5QVGOJ5HK5","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"7Y5QVGOJ5HK5TMB6","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"7Y5QVGOJ","created_at":"2026-05-18T12:26:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:7Y5QVGOJ5HK5TMB62ZWGS75GW4","target":"record","payload":{"canonical_record":{"source":{"id":"1206.5894","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2012-06-26T06:47:58Z","cross_cats_sorted":[],"title_canon_sha256":"25e46c3f856f41ae6d49a67d4bdf1a1176495183f4d19807339799e02bd9532d","abstract_canon_sha256":"398685f6429a0278f259fb76f308297e58262421b8b13b22e4f08864a4482a24"},"schema_version":"1.0"},"canonical_sha256":"fe3b0a99c9e9d5d9b03ed66c697fa6b721fc12c18c33b6eeac4d32ab62607eba","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:56:41.788592Z","signature_b64":"GLEH1rEXTFChLOsEmzDRCrnKKnxak5sFdpY3g8sUKSELdW24n7hw7ha+7tqjBY7kG7nSzKrMJJfb2KA4gxuMDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fe3b0a99c9e9d5d9b03ed66c697fa6b721fc12c18c33b6eeac4d32ab62607eba","last_reissued_at":"2026-05-18T01:56:41.787999Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:56:41.787999Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1206.5894","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":"2026-05-18T01:56:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A4kmrGJHtuBhxTAQVes0B7Lv61m+yTIKUpeFPKDHtrajwouKXqvLmb2dzQGEruBhFcybRtraXdbKXNL/1xyYCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:30:58.639580Z"},"content_sha256":"360cb23a347bffe4f86b6b2a6df2ed2c9a9388706208df6794dbd74f75ba9d12","schema_version":"1.0","event_id":"sha256:360cb23a347bffe4f86b6b2a6df2ed2c9a9388706208df6794dbd74f75ba9d12"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:7Y5QVGOJ5HK5TMB62ZWGS75GW4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measurement of electrical properties of electrode materials for the bakelite Resistive Plate Chambers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"A. Banerjee, C. Marick, G. Das, K. K. Meghna, S. Bhattacharya, S. Biswas, S. Bose, S. Chattopadhyay, S. Saha, Y. P. Viyogi","submitted_at":"2012-06-26T06:47:58Z","abstract_excerpt":"Single gap (gas gap 2 mm) bakelite Resistive Plate Chamber (RPC) modules of various sizes from 10 cm \\times 10 cm to 1 m \\times 1 m have been fabricated, characterized and optimized for efficiency and time resolution. Thin layers of different grades of silicone compound are applied to the inner electrode surfaces to make them smooth and also to reduce the surface resistivity. In the silicone coated RPCs an efficiency > 90% and time resolution \\sim 2 ns (FWHM) have been obtained for both the streamer and the avalanche mode of operation. Before fabrication of detectors the electrical properties "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.5894","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":"2026-05-18T01:56:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uFccFPnUNlkew3vw2yAdOOb/YbjUhZyIoB8aSjAwWh+pGADuNcjSmO5nVhdC6AY/+Vk0Xe3M3y3vn1o77IAWAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:30:58.639968Z"},"content_sha256":"253fca15d16a50eda404e4090b8ec38a74ea6d031be6c6e84af557c15f2424a8","schema_version":"1.0","event_id":"sha256:253fca15d16a50eda404e4090b8ec38a74ea6d031be6c6e84af557c15f2424a8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7Y5QVGOJ5HK5TMB62ZWGS75GW4/bundle.json","state_url":"https://pith.science/pith/7Y5QVGOJ5HK5TMB62ZWGS75GW4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7Y5QVGOJ5HK5TMB62ZWGS75GW4/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":"2026-05-30T09:30:58Z","links":{"resolver":"https://pith.science/pith/7Y5QVGOJ5HK5TMB62ZWGS75GW4","bundle":"https://pith.science/pith/7Y5QVGOJ5HK5TMB62ZWGS75GW4/bundle.json","state":"https://pith.science/pith/7Y5QVGOJ5HK5TMB62ZWGS75GW4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7Y5QVGOJ5HK5TMB62ZWGS75GW4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:7Y5QVGOJ5HK5TMB62ZWGS75GW4","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":"398685f6429a0278f259fb76f308297e58262421b8b13b22e4f08864a4482a24","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2012-06-26T06:47:58Z","title_canon_sha256":"25e46c3f856f41ae6d49a67d4bdf1a1176495183f4d19807339799e02bd9532d"},"schema_version":"1.0","source":{"id":"1206.5894","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.5894","created_at":"2026-05-18T01:56:41Z"},{"alias_kind":"arxiv_version","alias_value":"1206.5894v1","created_at":"2026-05-18T01:56:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.5894","created_at":"2026-05-18T01:56:41Z"},{"alias_kind":"pith_short_12","alias_value":"7Y5QVGOJ5HK5","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"7Y5QVGOJ5HK5TMB6","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"7Y5QVGOJ","created_at":"2026-05-18T12:26:58Z"}],"graph_snapshots":[{"event_id":"sha256:253fca15d16a50eda404e4090b8ec38a74ea6d031be6c6e84af557c15f2424a8","target":"graph","created_at":"2026-05-18T01:56:41Z","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":"Single gap (gas gap 2 mm) bakelite Resistive Plate Chamber (RPC) modules of various sizes from 10 cm \\times 10 cm to 1 m \\times 1 m have been fabricated, characterized and optimized for efficiency and time resolution. Thin layers of different grades of silicone compound are applied to the inner electrode surfaces to make them smooth and also to reduce the surface resistivity. In the silicone coated RPCs an efficiency > 90% and time resolution \\sim 2 ns (FWHM) have been obtained for both the streamer and the avalanche mode of operation. Before fabrication of detectors the electrical properties ","authors_text":"A. Banerjee, C. Marick, G. Das, K. K. Meghna, S. Bhattacharya, S. Biswas, S. Bose, S. Chattopadhyay, S. Saha, Y. P. Viyogi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2012-06-26T06:47:58Z","title":"Measurement of electrical properties of electrode materials for the bakelite Resistive Plate Chambers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.5894","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":"sha256:360cb23a347bffe4f86b6b2a6df2ed2c9a9388706208df6794dbd74f75ba9d12","target":"record","created_at":"2026-05-18T01:56:41Z","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":"398685f6429a0278f259fb76f308297e58262421b8b13b22e4f08864a4482a24","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2012-06-26T06:47:58Z","title_canon_sha256":"25e46c3f856f41ae6d49a67d4bdf1a1176495183f4d19807339799e02bd9532d"},"schema_version":"1.0","source":{"id":"1206.5894","kind":"arxiv","version":1}},"canonical_sha256":"fe3b0a99c9e9d5d9b03ed66c697fa6b721fc12c18c33b6eeac4d32ab62607eba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fe3b0a99c9e9d5d9b03ed66c697fa6b721fc12c18c33b6eeac4d32ab62607eba","first_computed_at":"2026-05-18T01:56:41.787999Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:56:41.787999Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GLEH1rEXTFChLOsEmzDRCrnKKnxak5sFdpY3g8sUKSELdW24n7hw7ha+7tqjBY7kG7nSzKrMJJfb2KA4gxuMDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:56:41.788592Z","signed_message":"canonical_sha256_bytes"},"source_id":"1206.5894","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:360cb23a347bffe4f86b6b2a6df2ed2c9a9388706208df6794dbd74f75ba9d12","sha256:253fca15d16a50eda404e4090b8ec38a74ea6d031be6c6e84af557c15f2424a8"],"state_sha256":"cd927fb901eb31dddc2a442d17fa243671b4b0e06548a8941e05a55a046c53e1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a9cj5zh6m+szd+dgo0WfXSi260OZ84VSqVQxHOWWM0khZBcpyxTb7Ih3ubXJsFSrmfy3zoJdxYWuS0QCNwzdAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T09:30:58.642397Z","bundle_sha256":"3bbb0fb74da9e57c539ab17091e7e88f9a2a2975398ad86d611fc3b84a8e0a3e"}}